E2 Installation and Operation Manual for RX Refrigeration,
BX HVAC, and CX Convenience Store Controllers
Retail Solutions
3240 Town Point Drive NW, Suite 100
Kennesaw, GA 30144, USA
Phone 770-425-2724
Fax 770-425-9319
FCC COMPLIANCE NOTICE
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause
undesired operation.
CE COMPLIANCE NOTICE
Class A Product Information for Einstein, E2 Controllers:
The Retail Solutions Einstein and E2 controllers are Class A products. In a domestic
environment this product may cause radio interference in which case the user may be
required to take adequate measures. This covers:
•All Einstein family product types: RX - Refrigeration Controller
(830-xxxx), BX - Building/HVAC Controller (831-xxxx), and all version models: (300, 400, 500).
•All E2 family product types: RX - Refrigeration Controller (834-xxxx),
BX - Building/HVAC Controller (835-xxxx), CX- Convenience Store
Controller (836-xxxx), and all version models: (300, 400, 500).
HE E2 REFRIGERATION CONTROLLER..................................................................................................................... 1-1
1.2 T
HE E2 BUILDING CONTROLLER............................................................................................................................... 1-2
1.3 T
HE E2 CONVENIENCE STORE CONTROLLER ............................................................................................................ 1-3
1.4.2 The E2 Echelon Lonworks Network................................................................................................................... 1-5
1.4.3 Interconnection With Other E2s ........................................................................................................................ 1-6
N-LINE HELP SYSTEM OVERVIEW .......................................................................................................................... 1-7
2.2.5 The 8RO and 8ROSMT Relay Boards................................................................................................................ 2-9
2.2.6 4AO Analog Output Board............................................................................................................................... 2-10
2.2.7 8DO Digital Output Board and PMAC II Anti-Sweat Controller ................................................................... 2-10
2.3.1 The 16AIe (Discontinued)................................................................................................................................ 2-11
2.3.2 The 8ROe (Discontinued)................................................................................................................................. 2-11
3.1.1 Standard Mount.................................................................................................................................................. 3-1
3.1.4 Blank Face ......................................................................................................................................................... 3-3
3.3.1 16AIe and 8ROe................................................................................................................................................. 3-4
3.3.2 CC-100 Case Controller and CS-100 Case Circuit Controller......................................................................... 3-5
3.5.2 Inside Temperature Sensor................................................................................................................................. 3-7
3.5.3 Outside Temperature Sensor.............................................................................................................................. 3-8
3.5.4 Insertion Temperature Probe............................................................................................................................. 3-8
3.5.5 Supply and Return Air Sensors........................................................................................................................... 3-8
3.5.6 Refrigeration System Temperature Probes and Sensors.................................. .................................................. 3-9
3.5.6.2 Mounting Bullet and Pipe Mount Sensors............................................................................................................... 3-9
3.5.7 Product Temperature Probes....................................................... ...................................................................... 3-9
3.5.8 Humidity Sensors and Humidistats.................................................................................................................... 3-9
5 SERIAL CONFIGURATION................................................................................................................................... 5-1
6 THE RS485 NETWORK AND HARDWARE SETUP.......................................................................................... 6-1
6.1 T
HE I/O NETWORK .................................................................................................................................................... 6-1
6.1.1 I/O Board Names and Terminology................................................................................................................... 6-1
6.1.6 Network ID Numbers (Board Numbers) ............................................................................................................ 6-3
6.1.7 Setting the Baud Rate......................................................................................................................................... 6-3
6.1.8 Setting the Terminating and Biasing Jumpers................................................................................................... 6-4
6.1.9 Powering the I/O Boards................................................................................................................................... 6-4
6.3.5 Energy Meter...................................................................................................................................................... 6-7
6.3.5.2 Supported System Types.......................................................................................................................................... 6-7
6.3.11 XM Series of Case Controllers....................................... .......................................... ...................................... 6-12
THERNET IP CONFIGURATIONS................................................................................................................................ 7-1
7.4.2 Open Network Layout......................................................................................................................................... 7-3
8.3.1 Maximum Number of Echelon Devices.............................................................................................................. 8-2
S ......................................................................................................................................................................... 8-4
9 INPUT AND OUTPUT SETUP................................................................................................................................ 9-1
9.1 T
HE 16AI, 8IO, AND MULTIFLEX INPUTS ................................................................................................................. 9-1
9.1.1 Connecting Sensors to Input Boards.................................................................................................................. 9-1
9.1.1.3 Input Type Dip Switches ......................................................................................................................................... 9-1
9.1.2 Power Connection.............................................................................................................................................. 9-2
9.1.3 Input Setup in E2................................................................................................................................................ 9-6
9.1.3.1 Configuring a Point from the Input Definitions/Status Screen................................................................................ 9-6
9.1.3.2 Using the Input Definitions/Status Screen............................................................................................................... 9-7
9.1.3.3 Setting Up Analog Inputs......................................................................................................................................... 9-7
9.1.3.4 Setting Up Digital Inputs......................................................................................................................................... 9-9
9.2 THE 8RO, 8ROE, 8IO, AND MULTIFLEX OUTPUTS................................................................................................. 9-10
9.2.1 Wiring Form C Contacts.................................................................................................................................. 9-10
9.2.3 Setting the Fail-Safe Dip Switch...................................................................................................................... 9-10
9.2.4 Wiring Outputs to Points.................................................................................................................................. 9-11
9.2.5 The Output LED............................................................................................................................................... 9-11
9.2.6 Output Setup in E2 ........................................................................................................................................... 9-11
9.2.6.1 Configuring a Point from the Output Definitions/Status Screen ..... ................................ ............................. ......... 9-11
9.2.6.2 Using the Output Definitions/Status Screen .......................................................................................................... 9-11
9.2.6.3 Setting Up Digital Outputs.............................................................................................................. ....................... 9-12
9.2.6.4 Setting Up Analog Outputs.................................................................................................................. .................. 9-13
9.3 CC-100 CASE CONTROLLERS.................................................................................................................................. 9-14
viii • Table of Contents026-1610 Rev 13 14-SEP-2011
9.3.2 Power Module Wiring...................................................................................................................................... 9-15
OGGING ON ......................................................................................................................................................... 10-1
HE MAIN STATUS (HOME) SCREEN..................................................................................................................... 10-3
10.5.1 Customizing the Home Screen....................................................................................................................... 10-3
10.6 C
OMMON SCREEN ELEMENTS ............................................................................................................................... 10-4
10.6.1 The Header..................................................................................................................................................... 10-4
10.6.2 The Function Keys ......................................................................................................................................... 10-4
10.6.3 The Help Line................................................................................................................................................. 10-4
10.7.1 The Main Menu.............................................................................................................................................. 10-5
10.7.2 Status Screens ................................................................................................................................................ 10-5
10.7.3 The Actions Menu........................................................................................................................................... 10-6
10.7.4 The Setup Screens .......................................................................................................................................... 10-7
10.7.5 System Configuration Menu........................................ .......................................... ......................................... 10-7
10.7.6 The System Information Menu ....................................................................................................................... 10-8
10.8.1 Setting the Time and Date.............................................................................................................................. 10-9
10.9 S
10.10 S
10.11 S
ET UP MODEM........................................................................................................................................... ........ 10-10
ET UP TCP/IP.................................................................................................................................................. 10-11
ET UP NETWORK BAUD RATES .................................................................................................................... .. 10-12
10.11.1 COM1 Serial (RS232) Baud Rate .............................................................................................................. 10-12
ET UP USER ACCESS ....................................................................................................................................... 10-13
10.12.1 Changing Required User Access Levels .................................................................................................... 10-14
10.12.2 Creating a New User Account ................................................................................................................... 10-14
10.12.3 Deleting a User.......................................................................................................................................... 10-14
10.13 S
ET UP I/O NETWORK....................................................................................................................................... 10-15
10.13.1 Specify Number of Boards.......................................................................................................... ... ............. 10-15
ET UP ECHELON NETWORK.................................................... ........................................ ................................. 10-16
10.14.1 Specifying Number of Devices ................................................................................................................... 10-16
10.14.2 Commissioning a Device.......................................................................................................................... .. 10-17
10.14.2.1 The Service Button Method........................................................................................................... .................. 10-17
10.14.2.2 The Manual ID Entry Method.......................................................................................................................... 10-19
10.15.1 Web Services.............................................................................................................................................. 10-20
10.16 S
ET UP ALARMING............................................................................................................................................ 10-21
10.16.1.4 The Echelon Network (The Alarm Annunciator)............................................................................................ 10-22
10.16.2 Setting up an E2 to be an Alarm Annunciator ........................................................................................... 10-22
ET UP GLOBAL DATA...................................................................................................................................... 10-24
ET UP APPLICATIONS....................................................................................................................................... 10-25
10.18.1 Add/Delete an Application....................................................................................................... .................. 10-26
10.18.2 Using and Configuring a Setup Screen...................................................................................................... 10-26
10.18.2.1 The Edit Menu ................................................................................................................................................. 10-27
10.18.2.3 Navigating the Setup Screen............................................................................................................................ 10-27
10.18.3 Using the Help Key to get Property Help ................................................................................................. . 10-29
UCTION GROUPS .................................................................................................................................................. 11-1
11.1.2 The (Standard) Suction Group Application ................................................................................................... 11-1
11.1.2.1 Overview of PID Control Strategy ...................................................................................................................... 11-1
11.1.3 The Enhanced Suction Group Application..................................................................................................... 11-1
11.1.3.3 The Control/Cycles Parameter............................................................................................................................. 11-2
11.1.3.4 Variable-Speed, Digital Scroll, and Digital Discus Compressor Support........................................................... 11-2
11.2.3 Fan Control.................................................................................................................................................... 11-4
11.2.5 Fast Recovery................................................................................................................................................. 11-4
11.3.1.1 Temperature Monitor........................................................................................................................................ ... 11-6
11.3.1.2 Temperature Control............................................................................................................................................ 11-6
11.3.1.3 Line Up(ESR)/Defrost ......................................................................................................................................... 11-6
11.3.1.4 Line Up(MFESR)/Defrost .......................................................................................................... ......................... 11-6
11.3.2 Defrost Control .............................................................................................................................................. 11-6
11.3.2.5 Hot Gas Defrost with ESR8 and MultiFlex ESR................................................................................................. 11-7
11.3.3 Clean and Door Switches............................................................................................................................... 11-7
11.3.3.2 Door Switches...................................................................................................................................................... 11-7
11.3.4 Fan Control.................................................................................................................................................... 11-8
11.3.6 The Control Link CD Case Display ............................................................................................................... 11-8
ASE CONTROL CIRCUITS ................................................................................................................................... 11-10
11.4.2 Case Circuit Control Software Overview..................................................................................................... 11-10
11.4.6 Dual Temp Control .................................................................................................................................... .. 11-14
11.4.7 Fan Control....................................................................................................................................... ........... 11-14
11.4.13 Setting Up An Individual Case Controller................................................................................................. 11-16
11.4.14 Associating Case Controllers with Case Circuit Control Applications..................................................... 11-16
11.5 L
OGGING GROUPS ............................................................................................................................................... 11-16
11.5.1 Possible Data Errors .............................................................................. ..................................... ................ 11-17
11.5.2 Data Compression........................................................................................................................................ 11-17
11.5.2.2 Incompressible Data Types............................................................................................... ............................. .... 11-17
11.5.3 Base Log Group........................................................................................................................................... 11-17
11.5.4 Setting Up Logging ...................................................................................................................................... 11-18
11.5.5 Logging Group Status Screen...................................................................................................................... 11-19
11.5.6.1 Logging Group Report....................................................................................................................................... 11-20
11.5.6.3 System Log Report ........................................................................................................... ............................. .... 11-20
11.6 AIR HANDLING UNITS (AHU).................................................... ......................................................................... 11-21
11.6.2 Temperature Control.............................................................................................................. ...................... 11-21
11.6.4 Fan Control....................................................................................................................................... ........... 11-21
11.6.5.2 Economization Lockout Features ...................................................................................................................... 11-23
11.6.6 Digital Economizer Control......................................................................................................................... 11-23
11.6.7 Analog Economizer Control......................................................................................................................... 11-23
11.6.11 Separate Setpoints...................................................................................................................................... 11-24
11.6.12 AHU Zone Control..................................................................................................................................... 11-24
ONE CONTROL ................................................................................................................................................... 11-25
11.7.2 How Zones Work.......................................................................................................................................... 11-26
11.7.3 Applications That May Be Connected To Zones......................................................................................... . 11-26
11.7.4 Temperature Control.................................................................................................................................... 11-27
11.7.5 Zone Temperature........................................................................................................................................ 11-27
11.7.6 Economizer Control ..................................................................................................................................... 11-27
11.7.8 The Effect of Enabling Economization......................................................................................................... 11-28
11.7.9 Dehumidification Control ........................................................................................................ .................... 11-28
11.7.10 The Zone Humidity Input............................................................................................................................ 11-28
11.7.11 The Effect of Enabling Dehumidification............................................................................... .................... 11-28
11.7.11.1 MultiFlex RTUs and RCBs.............................................................................................................................. 11-28
11.7.13 Losing Contact With Zone Applications................................................................................... .................. 11-29
ULTIFLEX PAK BOARD.................................................................................................................................... 11-30
11.10.2 Functions of the Lighting Schedule Application ........................................................................................ 11-31
11.10.3 Control Method Select................................................................................................................................ 11-31
11.10.4 Standard Control.................................................................................................................................. ...... 11-31
11.10.4.1 The Light Level Interface Cell (LLEV INTERFACE).................................................. .................................. 11-31
11.10.4.2 The Schedule Interface Cell (SCHEDIF) ........................................................................................................ 11-32
11.10.7 The Min ON/OFF Cell............................................................................................................................... 11-33
11.10.8 The Proof Cell........................................................................................................................................ .... 11-33
11.11.1 Introduction to Demand Limit Control ...................................................................................................... 11-34
11.12.2 Analog Sensor Control..................................................... .......................................................................... 11-38
11.12.3 Cut In/Cut Out Setpoint Control ................................................................................................................ 11-38
11.12.4 Digital Sensor Control....................................... ........................................................................................ 11-38
11.13.1 Layout of the Loop/Sequence Control Application .................................................................................... 11-39
11.13.1.1 Control Cells........................................................................................................................................ ............ 11-39
11.13.2 Loop/Sequence Control Cell Descriptions................................................................................................. 11-40
11.13.2.1 The Select Cell................................................................................................................................................. 11-40
11.13.2.2 The Setpoint Float Cell .................................................................................................................................... 11-41
11.13.2.3 The PID Control Cell....................................................................................................................................... 11-41
11.13.2.4 The Filter Cell........................................................................................................................................... ....... 11-41
11.13.2.5 The Override Cell ......................................................................................................... ................................... 11-41
11.13.3.1 The Sequencer Cell.................................................................................................................. ........................ 11-41
11.13.3.2 The PWM Cell................................................................................................................................................. 11-41
11.14 TIME SCHEDULINGAND HOLIDAYS................................................................................................................... 11-42
11.14.1 How Schedules Work ................................................................................................................................. 11-42
11.16.1 How Anti-Sweat Works ............................................................................................................................ .. 11-45
11.17.1 Temperature Control.................................................................................................................................. 11-45
11.20.6 High Trip.................................................................................................................................................... 11-50
11.21 I
RRIGATION CONTROL ....................................................................................................................................... 11-50
11.21.2 Zones and Cycles ....................................................................................................................................... 11-50
11.21.2.1 Cycle Control Types ......................................................................................................................... ............... 11-51
11.21.4 Zone Inhibit................................................................................................................................................ 11-51
11.21.5 Zone Bypass Inputs..................................................................................................................................... 11-51
11.21.6.2 Obstructed Zone Test.................. ............................. ... ............................. ..................................................... ... 11-52
11.21.7 Service Modes ...................................................................................................................................... ...... 11-52
11.21.8 Heat Cut In/Cut Out Setpoints For Each Stage ......................................................................................... 11-52
11.21.9 Cool Cut In/Cut Out Setpoints For Each Stage ......................................................................................... 11-52
11.21.10 Dehumidification Control ..................................................................................................... .................. 11-52
11.21.11 Two Speed Fan Control........................................................................................................................... 11-52
11.23.3 The Control/Cycles Parameter................................................................................................................... 11-54
11.23.4 Compressor Control ...................................................................................................... ............................. 11-54
11.23.4.1 Digital Scroll Compressor................................................................................................................................ 11-55
11.23.4.2 Variable Frequency Drive Compressor ...................................................................................... .. ................... 11-55
12 OPERATOR’S GUIDE TO USING THE E2...................................................................................................... 12-1
12.1 T
HE E2 HOME SCREEN.......................................................................................................................................... 12-1
12.1.1 RX Home Screen............................................................................................................................................. 12-1
12.1.2 BX Home Screen............................................................................................................................................. 12-1
12.1.3 CX Home Screen ............................................................................................................................................ 12-2
OGGLING FULL OPTIONS ..................................................................................................................................... 12-3
12.4.3 The E2 Keypad............................................................................................................................................... 12-6
12.5 C
12.6 M
12.7 O
12.8 C
12.9 C
12.10 A
USTOMIZINGTHE HOME SCREEN ........................................................................................................................ 12-9
HECKING STATUS SCREENS............................................................................................................................... 12-11
12.10.1 Accessing the Alarm Advisory Log...................................... .......................................... ............................. 12-12
xiv • Table of Contents026-1610 Rev 13 14-SEP-2011
12.10.2 Viewing the Controller Advisory Log ........................................................................................................ 12-12
12.10.3 Date and Time ............................................................................................................................................ 12-12
12.11.1.3 Setting Up Input and Output Pointers.............................................................................................................. 12-16
12.11.3 The Graph View......................................................................................................................................... 12-17
12.11.4 Zooming In and Out................................................................................................................................... 12-17
The E2 controller is a microprocessor-based control
system designed to provide complete control of compressor groups, condensers, refrigerated cases, and other components related to refrigeration and building control. The
E2 is the controlling component of a three-network configuration (RS485 I/O, Echelon
Ethernet) that includes input and output communication
boards, remote communication software, and a variety of
sensors, probes, and transducers.
The E2 efficiently operates all systems that support
refrigeration (including compressor racks and condensers)
and other components not directly related to refrigeration
control, such as HVAC systems, anti-sweat heaters, and
sensor control modules.
® Lonworks™ Networks, and
for the RX-300 and RX-400.
Capabilities
RX-
100
RX-
300
Analog Combiner0128128
Analog Import Point06464
Analog Sensor Control246472
Anti-Sweat81664
Case Control Circuit04864
CC100 Case Suction09999
CC100 Liquid Control09999
CCB09999
Condenser112
Control Link ACC166363
Control Link Case Disp09999
RX-
400
Figure 1-1
- E2 Controller
1.1The E2 Refrigeration
Controller
The E2 RX is available in three models: the RX-300,
RX-400, and RX-100. The E2 RX-300 is capable of controlling a single refrigeration system (including one condenser and up to four suction groups). The E2 RX-400 is
capable of controlling two separate refrigeration systems
(including two condensers and up to four suction groups).
The RX-100 is a low-cost alternative to the RX-300 with
fewer capabilities and a monochrome display.
The E2 RX is primarily designed to control temperature and defrost in refrigerated cases using either direct
control (connected to the E2 via I/O boards or ESR8
lineup control boards) or by using CC-100 case control
boards (connected via the LonWorks Network).
Table 1-1 shows the differences between capabilities
Control Link RSC09999
CS100 Ckt Suction09999
CT Drive01616
Digital Combiner0128128
Digital Sensor Control246472
Discus06363
E2 Alarm Panel777
Energy Meter303030
Enhanced Suction Group444
ESR8 ESR Control09999
Flexible Combiner64128128
Heat/Cool Control01616
Holiday Schedule46464
The E2 BX is available in two models: the BX-300 and
BX-400. The only significant difference between the E2
BX-300 and the E2 BX-400 is the total number of building
control devices that may be operated by a single controller.
Table 1-2 shows the differences between capabilities for
the BX-300 and BX-400.
CapabilitiesBX-300BX-400
K5 Ref Scroll03131
Modular Chiller Control012
MultiFlex ESR03131
MRLDS242424
Performance Alert06363
Power Monitoring11616
Pulse Accumulator01616
RMS Asset999999
Standard Circuit484864
Suction Group444
TD Condenser Fan Con-
46464
trol
TD3 Controller09999
Time Schedule46464
Table 1-1 - RX-100, RX-300, and RX-400 Comparison
Advanced Rooftop
3232
Control
AHU68
Analog Combiner128128
Analog Import Point6464
Analog Sensor Control6472
Anti-Sweat1648
Boiler22
Control Link ACC1648
Control Link Case Disp9999
Control Link RSC9999
CT Drive1616
Demand Control22
Digital Combiner128128
Digital Sensor Control6472
E2 Alarm Panel77
1.2The E2 Building Controller
The counterpart to the E2 RX is the E2 BX, which controls HVAC systems for low-rise retail, industrial, and
commercial buildings. The BX’s primary function is to
provide energy-efficient control of air handling units
(AHUs), rooftop units (RTUs), and other systems related
to environment control. In addition, the BX provides
extensive sensor control, logging, and graphing features
that allow the user to view accurate real-time information
about system conditions. The BX is equipped with many
power monitoring and demand control features that give
you the information you need to keep your site’s energy
Lighting Control2448
Logging Group3232
Loop/Sequence Control1628
MRLDS2424
Power Monitoring3264
Pulse Accumulator3264
RMS Asset9999
RCB Controller6464
TD Condenser Fan
1628
Control
Time Schedule6464
Table 1-2 - BX-300 vs. BX-400 Comparison
1.3The E2 Convenience
Store Controller
The CX controls HVAC, lighting, and refrigeration
systems for convenience store and small-box retail facilities. The CX’s primary function is to provide energy-efficient control of rooftop units as well as refrigeration and
defrost control of display cases and walk-in boxes. In
addition, the CX provides extensive sensor control, logging, and graphing features that allow the user to view
accurate real-time information about system conditions.
The CX is equipped with many power monitoring and
demand control features that give you the information you
need to keep your site’s energy consumption low.
The E2 CX is available in three models: the CX-300,
CX-400, and CX-100. The only significant difference
between the E2 CX-300 and the E2 CX-400 is the amount
of C-Store equipment that may be operated by a single
controller. The CX-100 is a low-cost alternative to the CX300 with fewer capabilities and a monochrome display.
Table 1-3 shows the differences between capabilities for
the CX-300 and CX-400.
Capabilities
Advanced Rooftop
CX-
100
CX-
300
CX-
400
03232
Control
AHU468
Analog Combiner64128128
Analog Sensor Control122448
Anti-Sweat4816
Case Control Circuit01224
CC100 Case Suction09999
CC100 Liquid Control09999
CCB09999
Condenser001
Control Link ACC81616
Control Link Case Disp69999
Control Link RSC109999
CS100 Ckt Suction09999
CT Drive01616
Demand Control111
Digital Combiner64128128
Digital Sensor Control122448
Discus0063
Table 1-3 - CX-100, CX-300, and CX-400 Comparison
The E2 Convenience Store ControllerIntroduction • 1-3
Capabilities
CX-
100
CX-
300
CX-
400
Capabilities
CX-
100
CX-
300
CX-
400
E2 Alarm Panel777
Energy Meter303030
Enhanced Suction
Most of the general purpose input and output commu-
nications devices required by the E2 to control refrigeration systems are connected to the E2 via the I/O Network.
The I/O Network is a simple RS485 three-wire connection
that allows data interchange between input boards (which
read sensor values and digital closures), output boards
(which carry out commands from E2’s control applications), and the E2 itself.
The I/O Network is the same thing as the COM A and
COM D Networks found on Retail Solutions’ previous
generation of controllers, REFLECS. This allows current
owners of Retail Solutions’ Refrigeration Monitor and
Control (RMC) or Refrigeration Monitor and Case Control
(RMCC) controllers to easily retrofit with an E2 RX without need for re-wiring.
Loop/Sequence Control81628
K5 Ref Scroll0031
MultiFlex ESR03131
MRLDS242424
Performance Alert0063
Power Monitoring2816
Pulse Accumulator4816
RCB Controller03232
RMS Asset999999
Standard Circuit61232
Suction Group004
TD Condenser Fan
tion and system control, but they communicate with other
RXE2
E2
E2 RX & BX
RS485 I/O NETWORKS
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
CS-100
CS-100
CC-100
CC-100
CC-100
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
RXE2
E2
E2 RX & BX
ECHELON NETWORKS
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
CS-100
CS-100
CC-100
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
CC-100
CC-100
E2s to provide logging, alarm control, and other functions.
In addition to these, Retail Solutions also offers Echeloncompatible input and output boards similar to those available for the RS485 Network.
Figure 1-2
- E2 RX/BX I/O Network Diagram
Figure 1-2 shows the peripherals that make up the I/O
Network:
• MultiFlex - The MultiFlex line of control system
boards provide a wide variety of input, output, and
smart control solutions, all of which are based on a
single universal hardware platform.
• 8ROSMT - Relay output board - activates and deactivates up to eight devices.
• Previous-generation I/O boards, such as 8RO, 8DO, and 4AO - are all still compatible with E2
I/O Network.
1.4.2The E2 Echelon Lonworks
Network
The E2 is also compatible with a network platform
called Lonworks. This is most commonly referred to as
“the Echelon Network,” after the company who invented
the platform, the Echelon Corporation.
In general, peripherals with control functions — such
as case controllers, rooftop HVAC controllers, and other
E2 RX and BX units — are interconnected on the Echelon
Network. These controllers do most of their own computa-
Figure 1-3 - E2 RX Echelon Network Diagram
Figure 1-3 shows the E2 RX peripherals that commu-
nicate across the Echelon Network:
• CC-100 - Case control board - controls all lights,
fans, defrost, and refrigeration for a single case. The
CC-100 controls pulse or stepper valves to provide
precise evaporator control, resulting in better temperature maintenance and energy efficiency.
• ESR8 - Evaporator stepper regulator - the analog
outputs on this board allow the E2 to control circuit
temperature in up to eight circuits using suctionside mounted electronic evaporator pressure regulators (EEPRs).
• TD3 - Temperature display - has three inputs that
monitor case temperature, product temperature and
defrost status.
• Third Party Echelon Devices - Echelon® LONMARK® devices communicate with E2 through its
"Open Echelon" networking feature, and require a
license key and a description file that is loaded into
Networking OverviewIntroduction • 1-5
the E2 that enables communication.
Echelon Box-To-Box
Ethernet Box-To-Box
Switch
CAT5 CABLE
ECHELON CABLE (daisy chain)
1.4.3Interconnection With Other
E2s
In large installations where more than one refrigeration
system is present, or where E2s are controlling both refrigeration and building HVAC systems in the same site, the
E2s share information with each other across either the
Echelon Network or via Ethernet.
Figure 1-4
- E2 RX/BX Network
1.5Documentation Overview
The E2 RX and BX controllers are among the most
versatile and customizable control system products available on the market. Because of the enhanced capabilities
of the E2s, programming, installation, and operation of E2
and its accompanying peripherals are supported by several
different Retail Solutions publications. All of the publications listed below can be ordered by contacting Retail
Solutions:
• E2 Installation and Operation Manual for RX
Refrigeration, BX HVAC, and CX Convenience
Store Controllers (026-1610) - The manual you are
currently reading. The Installation and Operation
Manual covers hardware installation, network
setup, and important operator functions such as
viewing status screens or logs, and performing
manual defrosts.
The Quick Start section (Chapter 8) is designed to
guide you quickly through setup of the most simple
and vital refrigeration control applications (such as
suction groups and condensers). More detailed
information is included in the online help.
• Router and Repeater Installation Guide (P/N 026-
1605) - If you have a large site with 64 or more
devices on the Echelon Network, you might require
the use of a router or repeater to properly set up
your Echelon Network. The Router and Repeater
Installation Guide will help you determine when a
router or repeater should be used, how and where to
set it up, and how to configure the E2(s) on the network to interact with the router or repeater.
• Emerson Retail Solutions Product Technical Sheet Binder (P/N 026-1904) - The product sheet
binder gives important installation information
about sensors, transducers, thermostats, and other
essential items that are a part of every Retail Solutions control network. The product sheet binder is
not necessary for field installation instructions;
however, it may be a useful reference for contractors and OEMs who require more information about
a specific peripheral.
• MultiFlex ESR Installation and Operation Manual (P/N 026-1720) - From general information to
details on mounting, wiring, and heat dissipation,
the MultiFlex ESR manual provides the information you need to install and operate the MultiFlex
ESR board, in addition to valuable information on
software setup and valve control.
• MultiFlex I/O Board Installation and Operation
Manual (P/N 026-1704) - Installation and opera-
tion manual for the MultiFlex 16 and all versions of
the MultiFlex combination input/output board,
excluding unit controllers such as the CUB and
RTU.
• MultiFlex CUB/CUB II Condensing Unit Board
Installation and Operation Manual (P/N 026-
1705) - Installation and operation manual for the
MultiFlex CUB (old style) and the MultiFlex CUBII family, which includes the CUB-II and CUB-TD.
• MultiFlex RTU Rooftop Controller Installation and Operation Manual (P/N 026-1706) - Installation and operation guide for the MultiFlex RTU
(replacement for ARTC).
• MultiFlex RCB Rooftop Controller Installation and Operation Manual (P/N 026-1707) - An
improved version of the MultiFlex RTU, the RCB
has 16 fully configurable analog and digital input
points. The RCB also has four analog outputs for
use in controlling variable speed fans, economizers,
or modulating heating and/or cooling valves. The
RCB also features a more sophisticated HHT interface and updated algorithms for controlling heating,
cooling, dehumidification, and air quality. Refer to
this manual for more information on the MultiFlex
RCB Rooftop Controller.
• E2 User’s Manual Supplement for Flexible Combiner Programming (P/N 026-1620) - The Flexible
Combiner application is an advanced I/O control
program used to combine multiple analog and digital input values using programmed equations similar to those used in spreadsheets, and is a new
feature of E2 versions 2.20 and above. Refer to this
manual for more information on the Flexible Combiner application.
• Facility Status Display (FSD) Installation and
Operation Manual (P/N 026-1400) - The FSD
reports alarm information and more, (such as temperatures, occupancy, case status, and setpoints)
and provides a centralized device for store personnel to review information by communicating with
the E2 via Ethernet connectivity (minimum E2
firmware rev. 2.68F01). Refer to this manual for
more information on the Status Display application.
• Square D Smart Breaker Control Manual (P/N
026-1711) - The Smart Breaker products are
designed to allow the Retail Solutions family of site
controllers to command control panels (minimum
E2 firmware rev. 2.71F01). A breaker panel generally consists of a series of circuit breakers that are
flipped from OFF to ON and from ON to OFF by
commands sent from E2 through MODBUS or a
Square D Smart Breaker Gateway board. Refer to
this manual for more information on the Square D
Breaker Panel application.
• Eaton Breaker Control Manual (P/N 026-1709) -
E2 can communicate directly with Eaton's Breaker
Control Bus (BCB) modules. Communication with
the E2 (minimum E2 firmware rev. 2.82) will
enable users to access features such as Time Schedules, Enhanced Lighting, and Logging, with the the
added capabilities of dial-out on failure and offsite
remote connection, specifically with UltraSite32
and Site Manager to the breaker panel. The Eaton
Breaker Panel controller is a licensed application
available in the E2 300 and 400 model controllers.
Refer to this manual for more information on the
Square D Breaker Panel application.
• Energy Meter Manual (P/N 026-1726) - The
Energy Meter provides a solution for measuring
energy data with a single device. Inputs include
Control Power, CT, and 3-phase voltage. The
Energy Meter supports multiple output options,
including solid state relay contacts, Modbus (with
or without data logging), and pulse. The LCD
screen on the faceplate allows instant output viewing.
• iPro DAC (P/N 026-1727) - The iPro DAC is a
packaged HVAC control board for use either as a
stand-alone controller or in zone control applications using a Retail Solutions E2 BX building control system. The iPro DAC is capable of controlling
heat and cool stages, fans, humidification and dehumidification devices and economizers using onboard I/O and control algorithms, as well as monitor and interact with other building control systems
and peripherals (such as smoke alarms and CO2
sensors).
1.6On-Line Help System
Overview
The E2 On-Line Help is the primary source frontpanel/interface users will have to consult when seeking
instruction on properties, screens, menus, and troubleshooting of hardware/software problems. The on-line help
topics are designed to minimize the time the user would
otherwise have to spend searching through the manual to
find information. Press
General Help menu.
+ keys to open the
On-Line Help System OverviewIntroduction • 1-7
To use on-line help from any screen in the E2 front
panel interface, simply press the E2’s permanent Help
key. This opens a pop-up window containing either
information about the screen or menu you are currently on,
or information about the input, output, or setpoint you
have highlighted with the cursor (if available). After the
Help
key has been pressed, will open the Gen-
eral Help menu containing Troubleshooting options.
1.7Software Licensing
Some applications in the E2 are available only when
activated with a unique license key that is obtained
through Retail Solutions. Software licensing (see Section
10.15, License Management) allows the user to activate
certain features in the E2, such as Web Services and thirdparty controllers. Call your Retail Solutions sales representative at 770-425-2724 for more information about
software licensing.
This section gives an overview of the E2, the hardware, and how it communicates across the I/O and Echelon Networks to control an entire system.
2.1E2 Hardware
The E2 controller is programmed to monitor and command all aspects of a refrigeration or building environmental control system. The E2 uses both an RS485 I/O
Network and a LonWorks Network to gather data from
input devices, communicate with other E2s, and activate
or deactivate loads.
In general, an E2 control network will consist of the
following components:
1.E2 - The “brain” of the control network, which
performs all necessary computations and sends
commands to the output devices that control the
system.
2.Input Boards - Transfer readings to the E2.
3.Output Boards - Banks of relays, digital pulse
outputs, or analog outputs, which the E2 may use
to control loads.
4.Smart Boards - Boards such as case controllers
(for refrigeration) or rooftop controllers (for
building control) that perform control functions
for an individual case or rooftop unit, and send
the data to the E2 for logging and alarm purposes.
5.Modem - For remote communication via phone,
if necessary .
6.Network Wiring - Wiring that connects the E2 to
other E2s, and all the input, output, and smart
boards.
7.Sensors and Loads - The “eyes” and “hands” of
the control network. Sensors “see” what needs to
be controlled on the network, and Loads are what
can be controlled, or more specifically, be turned
on and off, such as compressors, condensers,
lights, and fans.
Figure 2-1
Table 2-1 - E2 Specifications
- E2 Front Panel
Dimensions
Operating
Temp
Storage Temp
Operating
Humidity
Storage
Humidity
Power
VA Load
NOTE: Contact Retail Solutions Customer
Service at 770-425-2724 for E2 controller
part numbers and model descriptions.
Standard Mount:
9.06” W x 12.06” H x 3.75” D
Recessed Mount:
9.06” W x 10.56” H x 2.0” D
Base:
10.56” W x 10.56” H x 3.75” D
-40°F to 149°F (-40°C to 65°C)
-40°F to 158°F (-40°C to 70°C)
5% - 95% RH non-condensing at 90°F
5% - 100% RH
24 VAC ±20%, 50/60 Hz, Class 2
50
E2 HardwareHardware Overview • 2-1
2.1.1E2 Main Processor Board
(CPU)
Figure 2-2
contains the CPU, Ethernet port, and memory used for logging. The 3.6V battery for the E2 is located on this board
and protects log and alarm data during power loss. The
main processor board connects to the PIB via a ribbon
cable. The RX- and CX-100 versions support monochrome display only. For optimum viewing, backlight and
contrast adjusts are available for customizing the monochrome display depending on the user’s needs.
- E2 CPU (RX-100 Version Shown)
The E2 CPU or main processor board (Figure 2-2)
2.1.2E2 Processor Interface Board
(PIB)
2.1.3E2 Keypad
Figure 2-4 - E2 Keyboard
The E2 has a QWERTY style keyboard layout with
two rows of function keys. The first row (-) is
comprised of screen-specific function keys, and the second row has designated icon keys. The five icon keys are
Help , Alarms , Home , Menu , and
Back .
2.1.4LEDs
The PIB, main processor board, and keyboard (located
behind the main board) LEDs can be used to determine the
status of normal operating parameters for the unit.
PIB LEDsStatus
Green (14)ON: Power is being applied to the
PIB
Yellow (RX1) ON: Communication is being re-
ceived on RS485 Port 1A
Yellow (RX2) ON: Communication is being re-
ceived on RS485 Port 1B
Red (TX)ON: Communication is being sent
on RS485 Port 1A and 1B
Table 2-2
Figure 2-3 - E2 PIB
The E2 Processor Interface Board (PIB) interfaces the
power and most all communications with the main processor board, and contains all field wiring connections. The
PIB allows you to connect an external keyboard, accessory
cards, and an external computer. All RS485 and Echelon
Network connectors are located on the PIB.
1 blink every two seconds (1 second ON, 1 second OFF): Main
board is operating normally.
Solid ON: E2 is booting up.
Faster blinks per second: Indi-
cates an error condition with the
hardware or firmware.
ON: E2 is booting up.
Table 2-3
Table 2-4
- Main Board (CPU) LED’s Status
Keyboard
LED
Green (D5
General Sta-
tus LED)
- Keyboard LED’s Status
1 blink every two seconds (1 second ON, 1 second OFF): Status is
normal.
4 blinks per second: A flash and/
or crystal problem has been detected. Board should be replaced.
Status
2.1.5PC-104 Peripherals: The
Internal Modem (Previous Generation Processor Board)
CAUTION: Power down the E2 before plugging the modem into the PC-104 slot. Failure
to do so can damage the modem and void the
warranty.
Figure 2-5 - Mounting the Internal Modem Board
2.2I/O Network Boards
and Peripherals
2.2.1The Gateway Board
The E2’s internal modem mounts in the PC-104 slot
located at the top left of the E2 main board (See Figure 2-
5). Disconnect power to the unit
male pins on the back of the modem card into the E2’s PC104 slot. Use the standoffs and screws supplied with the
modem card to secure the card to the main board, as
shown in Figure 2-5. When finished, restore power to the
E2.
I/O Network Boards and PeripheralsHardware Overview • 2-3
, and carefully plug the
Figure 2-6 - Gateway Board
The Gateway board is an RS485 to RS485 converter.
One side of the Gateway is always connected to the Retail
Solutions I/O Network. The other side of the Gateway is
the receiver bus (RS485). The receiver bus is connected to
one or more RS485 devices depending on which type of
Gateway is being used. The Gateway interfaces devices to
the Einstein/E2 and legacy Retail Solutions controller
(REFLECS) by simulating 16AI and 8RO boards using
Retail Solutions standard I/O board protocol. The Gateway can also convert third-party controller protocols to
Retail Solutions protocol for custom cells created in the
Einstein/E2 to interface with third-party controllers (Danfoss, Woodley , etc.).
The Gateway performs one of two basic functions:
1.It allows control of and/or status of a device using
I/O board simulation
2.Converts a third-party protocol to Retail Solutions I/O Net protocol and interfaces to a custom
cell in Einstein/E2
P/NGateway Model
810-3500 RF Gateway
810-3700 IRLDS II Gateway
810-3760RLDS Gateway
810-3710 Danfoss MicroCool Gateway
810-3711 Woodley Case Controller
Gateway
810-3712 Woodley Pack Controller
Gateway
810-3720 Cutler Hammer Breaker
Gateway
810-3721 Square D Breaker Gateway
Table 2-5
- Gateway Board Models
2.2.2MultiFlex Boards
The MultiFlex line of control system boards provides a
wide variety of input, output, and smart control solutions,
all of which are based on a single universal hardware platform. The board design uses flash-uploadable firmware
and plug-in expansion boards to configure the base platform board and apply it for use as an input board, relay
output board, analog output board, or a combination I/O
board.
2.2.2.1MultiFlex 16 Input Board
Figure 2-7 - MultiFlex 16 Input Board
The MultiFlex 16 input board offers sixteen combination analog/digital input points for use by Retail Solutions
E2, Einstein, and REFLECS control systems. The MultiFlex 16 may be used in retrofits with no additional hardware or software setup or upgrades.
The MultiFlex 16 is designed to be 100% compatible
with the previous generation of Retail Solutions input
boards (the 16AI),
via an RS485 connection to a REFLECS COM A&D Network or an E2 I/O Network. Dip switches on the board set
the network ID (board number) and baud rate.
The board also provides both +5VDC and +12VDC
output voltage points for use in powering transducers or
other input devices that require power.
The MultiFlex 16 has a Hand-held Terminal interface
Section 2.2.4, Hand-held Terminal (P/N 814-3110) that
may be used by technicians to view the input voltage and
engineering unit values for each input point without need
of a voltmeter or front panel controller display.
Table 2-6 sh ows the part number of the MultiFlex 16.
The MultiFlex 16 is designed with several features that
make it easy to install, wire, and configure. These main
user interface features are shown in Figure 2-7.
The MultiFlex combination I/O boards consist of up
to 16 combination digital/analog inputs, and a combination of relay outputs, digital outputs, and analog outputs.
2.2.2.2MultiFlex Combination Input/
Output Boards
Figure 2-8
View)
- MultiFlex Combination Input/Output Board (Side
All boards feature both +5VDC and +12VDC output
voltage points for use in powering transducers or other
input devices that require power.
On the RS485 Network, the MultiFlex combination
input/output boards present themselves to Einstein, E2, or
REFLECS site controllers as 16AI Analog Input Boards,
8RO Relay Output Boards, 8DO Digital Output Boards,
and/or 4AO Analog Output Boards, depending on what
type of inputs or outputs are equipped. Dip switches are
used to assign network ID numbers to each board type.
The MultiFlex combination input/output boards also
support a Hand-held Terminal interface, Section 2.2.4, Hand-held Te rmi nal (P/N 814-3110) which allows technicians to view input values, check relay and analog output
states, and override output points with fixed digital or analog values. For more information on MultiFlex I/O boards,
refer to the MultiFlex I/O Board Installation and Opera-tion Manual (P/N 026-1704).
Table 2-7 sh ows the available models of MultiFlex
combination input/output boards with description and part
numbers.
P/NModel
Description
Name
810-3063MultiFlex
88AO
810-3064MultiFlex 888 analog/digital inputs, 8
810-3065MultiFlex
168AO
8 analog/digital inputs, 8
relay outputs, 4 analog outputs
There are several models of the MultiFlex board that
combine the functionalities of input boards, relay output
boards, digital output boards, and analog output boards.
The MultiFlex combination input/output boards are
designed to be replacements for the 8IO Combination
Input/Output Board, but the MultiFlex board provides several new hardware options and software features.
I/O Network Boards and PeripheralsHardware Overview • 2-5
810-3066MultiFlex
168
810-3067MultiFlex
168DO
810-3072MultiFlex
1616L
810-3073MultiFlex
1616LAO
810-3077MultiFlex
1616LDO
16 analog/digital inputs, 8
relay outputs.
16 analog/digital inputs, 8
relay outputs, 4 digital outputs
The MultiFlex Condensing Unit Board (CUB) is a
“smart” input/output board designed to control single condensing units. A single condensing unit is a self-contained
compressor and condenser bearing unit which controls
refrigeration in a single case line-up or walk-in cooler.
The MultiFlex CUB uses the same general hardware
configuration as a MultiFlex 168AO. It is equipped with a
processor and extra memory to allow it to control compressors, condensers, refrigeration, and defrost for a single
condensing unit using on-board I/O and control algorithms.
The MultiFlex CUB has its own installation and opera-
tion manual, (P/N 026-1706).
2.2.2.4MultiFlex RTU (BX and CX Only)
Similar in design to the MultiFlex combination input /
output boards, the MultiFlex RTU board is designed specifically for operating package rooftop HVAC units as part
of an E2 BX or REFLECS BCU building control system.
The MultiFlex RTU is designed to be a replacement for the
previous generation ARTC, and is 100% compatible with
all legacy E2 BX and BCU systems.
The MultiFlex RTU board has 16 analog inputs, 8
relay outputs and 4 analog outputs. Most of these I/O
points are reserved for sensors and input devices required
to read environmental data (such as space and supply air
temperature) and control all output devices that control the
environment (such as heat/cool stages and dampers). The
RTU relay outputs are rated for line voltage (240VAC).
The RTU board controls the rooftop unit directly with
its built-in heating, cooling, and humidity control algorithms. It may operate in stand-alone mode, or it may
interface with an E2 BX or BCU to control the store environment in zones and pass along logging and alarm information.
The MultiFlex RTU has its own installation and opera-
tion manual, (P/N 026-1705).
2.2.2.5MultiFlex Rooftop Control Board
(RCB) (BX and CX Only)
The MultiFlex Rooftop Control Board (RCB)
(P/N 810-3062) is a rooftop HVAC control board for use
either as a stand-alone controller or in zone control applications using a Retail Solutions E2 BX building control
system. The MultiFlex RCB is capable of controlling heat
and cool stages, fans, humidification and dehumidification
devices, economizers using on-board I/O and control algorithms, as well as monitor and interact with other building
control systems and peripherals (such as smoke alarms and
CO2 sensors).
The RCB is an improved version of the MultiFlex
RTU. The RCB has sixteen fully configurable analog and
digital input points, whereas the RTU has only eight
inputs, two of which are configurable. The RCB has four
analog outputs for use in controlling variable speed fans,
economizers or modulating heating and/or cooling valves,
whereas the RTU has only two analog outputs for use only
with VS fans and economizers. The RCB also features a
more sophisticated HHT interface and updated algorithms
for controlling heating, cooling, dehumidification, and air
quality.
The MultiFlex RCB has its own installation and operation manual, (P/N 026-1707).
LEGEND
1INPUT POWER
(24VAC)
2RS485 I/O NETWORK10HAND-HELD TERMI-
3RCB INPUTS 1-811RELAY OUTPUT CON-
4RCB INPUTS 9-1612RELAY OUTPUT FUSES
5NETWORK ID DIP
SWITCHES (S3, S4)
6INPUT TYPE DIP
SWITCHES (S1, S2)
7BOARD STATUS LEDs
(Code A, Code B, General
Status)
8DC POWER OUTPUTS
(3 at +5VDC, 1 at
+12VDC)
9RS485 TERMINATION
JUMPERS
NAL JACK
NECTORS
(2A rated, 250V slowblow)
13RELAY STATUS LEDs
14OUTPUT FAIL-SAFE
SWITCHES
15ANALOG OUTPUTS
16NETWORK STATUS
LEDs
Table 2-8 - MultiFlex RCB
2.2.2.6MultiFlex PAK Board
The PAK is a distributed pack (rack) controller that
controls compressors and condenser fans. The PAK can
control up to 8 compressor groups containing up to 16
compressors. The compressor control strategy is Fixed
Steps with setpoint/deadband using ON and OFF delays.
Up to 20 Fixed Steps can be configured.
I/O Network Boards and PeripheralsHardware Overview • 2-7
The PAK can control up to 4 condenser fan groups
8
3
7
24VAC CT 75 VAC Power Input
Valve Connectors (8)
I/O Network Input
Termination Jumpers
Network Address Switches
General Status LED
1
5
2
3
4
6
7
8
HHT Jack
TX and RX LEDs
9
10
Open LED (8)
Close LED (8)
9
10
containing up to 8 total condenser fans. The PAK condenser control strategy is sequential TD control with setpoint/deadband using ON and OFF delays.
The PAK has a compressor/condenser interlock feature that will override TD control and force the condenser
fans to stage off using the TD control OFF delay when all
compressors are off. This feature can be disabled with an
Enable/Disable setpoint or when the discharge pressure is
above a configurable setpoint.
The MultiFlex PAK boards consist of two circuit
boards: a bottom layer with 16 combination digital/analog
inputs, and a plug-in top layer which contains a combination of 8 relay outputs and 4 digital DC voltage outputs.
The analog outputs on the Multiflex PAK drive solid
state relays to control the fan stages. The relays control the
compressor groups.
The communication interface is RS485 I/O using the
Standard Extended Address Form for Retail Solutions Distributed Controllers. Currently, the PAK is designed to
interface with the Retail Solutions E2 controller.
2.2.3The MultiFlex ESR Board
The MultiFlex ESR Valve Regulator board (P/N 810-
3199), shown in Figure 2-1, is an RS485 I/O Network
electronic stepper valve regulator capable of driving up to
eight stepper motor valves, which are typically used to
control temperature.
Figure 2-1 - MultiFlex ESR Board Layout
The MultiFlex ESR uses suction side variable-position
evaporator regulators (ESRs) to vary evaporator pressure
for an entire circuit and is an alternative to mechanical
EPR control.
The MultiFlex ESR receives input data from a Retail
Solutions E2 controller (via the I/O Network) and then
regulates the stepper valves according to the data from the
LEGEND
1INPUT POWER
(24VAC)
2RS485 I/O NETWORK10HAND-HELD
3PAK INPUTS 1-811RELAY OUTPUT
4PAK INPUTS 9-1612RELAY OUTPUT FUSES
5NETWORK ID DIP
SWITCH (S3)
6INPUT TYPE DIP
SWITCHES (S1, S2)
7BOARD STATUS LEDs
(Code A, Code B, General
Status)
8DC POWER OUTPUTS
(3 at +5VDC, 1 at
+12VDC)
9RS485 TERMINATION
JUMPERS
TERMINAL JACK
CONNECTORS
(2A rated, 250V slowblow)
13RELAY STATUS LEDs
14RELAY FAIL-SAFE
SWITCHES
15PAK ANALOG
16NETWORK STATUS
OUTPUTS 1-4
LEDs
Table 2-9 - MultiFlex PAK
E2.
Each MultiFlex ESR board requires a Class 2, 80VA
24VAC center-tapped transformer for power. Retail Solutions transformer (P/N 640-0080) is a multi-tapped primary transformer that may be used with the MultiFlex
ESR board.
2.2.4Hand-held Terminal (P/N
814-3110)
The Hand-held Terminal (HHT) is used by manufacturers and service technicians to diagnose and test several
of Retail Solutions' existing and legacy products. The
HHT can be used on any Retail Solutions product with an
RJ-11 connector. The most common applications include:
• All MultiFlex I/O boards and the 8ROSMT
• All Gateway boards
• Stand-alone MultiFlex boards (RTU, RCB, PAK,
CUB)
Up Arrow - moves to previous screen,
editable field, or top of screen
1
3
4
11
7
8
9
10
2
The power switch determines if the HHT is
in self-powered mode (BATT), ext power (EXT),
or if powered from a target device (HOST)
1
4
3
2
RS-485 Connector
Enter - save into memory
5
6
7
8
10
9
11
12
13
14
LCD - four lines of 16 characters
Numeric keypad
F1 - Home Screen
External Power Connector (9-12 VDC)
Scrolls list selections and scrolls through
ASCII characters if in a text field
5
613
F2- Main Menu
Right Arrow - selects last editable field
starting from bottom of screen; selects
last editable field from bottom to top
Down Arrow - moves to next screen,
editable field, end of screen, or advances
Cancel - clears/erases text in editable field;
cancels overrides
12
14
Left Arrow - selects first editable field from
top of screen, and next editable field from
top to bottom
The HHT does not require a separate power source.
The unit is powered from the RJ-11 connector on the
peripheral equipment. The HHT includes a standard male
RJ-11 to male RJ-11 cable.
NOTE: The 9V battery and 9-12V DC adapter
connection are not used on this HHT model
(P/N 814-3110).
with any refrigeration system or environmental control
component.
The 8RO board is the direct link between the E2 and
component operation. Information gathered by the controller from the input boards is checked against current
stored setpoints. If differences in the received input data
and the setpoint information are detected, a signal is either
sent to the proper 8RO relay, or an existing signal is discontinued. Through the use of this relay signal, control
functions that can be properly maintained by a simple contact closure sequence are effectively operated by the E2.
The 8RO board is easily installed and operated within
the Retail Solutions Network environment because of its
straightforward design. Several of these features are
shown in Figure 2-11.
Figure 2-10
- Hand-held Terminal (814-3110)
2.2.5The 8RO and 8ROSMT Relay
Boards
The 8RO (P/N 810-3005) board is a general-purpose
board used to connect an E2 to any of eight standard control relay outputs, but is now obsolete and has been
replaced by the 8ROSMT (P/N 810-3006) board.
T o function, the 8RO board must be connected through
either the Echelon Network or the RS485 I/O Network to
the E2. When properly installed, the 8RO receives an electrical impulse from the E2, which either opens or closes
any of eight contact relays. Output definitions within the
E2 allow the user to configure the 8RO board to interact
I/O Network Boards and PeripheralsHardware Overview • 2-9
Figure 2-11 - 8RO Relay Output Board
Figure 2-12 - 8ROSMT Relay Output Board
2.2.64AO Analog Output Board
4
5
7
8
9
Transmitting (TX ) and Receiving (RX) LEDs
Hand-held Terminal (HHT) Jack
8
9
Alarm and Status Indicator LEDs
4-20mA Channels (2)
Analog Outputs (4)
D
I
S
C
O
N
T
I
N
U
E
D
The 4AO Analog Output Board (P/N 815-3030) (Fig-
ure 2-13) is configured with four analog output connec-
tions that provide a variable voltage signal to any of four
analog devices that may be controlled by a single E2. T wo
4-20mA outputs are provided for channels 1 and 2. The
4-20mA outputs provide a variable current for applications
that are either externally powered or that require power
from the 4AO board.
2.2.78DO Digital Output Board
and PMAC II Anti-Sweat Controller
For control of anti-sweat heaters, Retail Solutions supplies the 8DO Digital Output board (P/N 810-3050). The
8DO has eight outputs which may pulse up to 150mA at
12VDC.
Since the 8DO is primarily designed to control antisweat heaters, the 8DO is the heart of Retail Solutions’
Pulse Modulated Anti-Sweat Control (PMAC II) panel.
The PMAC II (P/N 851-1000) provides 16 channels of
anti-sweat control circuitry. The PMAC II panel combines
the 8DO with high-capacity relays in a single enclosure,
providing 256 total amps of anti-sweat heater operation.
The 8DO is shown in Figure 2-15. The PMAC II is
shown in Figure 2-16.
Figure 2-13
The previous generation 4AO Analog Output Board,
(P/N 810-3030) (Figure 2-14) is configured with four ana-
log output connections that provide a variable voltage signal to any of four analog devices that may be controlled by
a single E2.
Figure 2-14 - 4AO Analog Output Board - DISCONTINUED
board similar in function to its I/O Network counterpart,
the 8RO. The 8ROe board is the direct link between the E2
and component operation. Information gathered by the
controller from the input boards is checked against current
stored setpoints. If differences in the received input data
and the setpoint information are detected, a signal is either
sent to the proper 8ROe relay, or an existing signal is discontinued. Through the use of this relay signal, control
functions that can be properly maintained by a simple contact closure sequence are effectively operated by the E2.
The 8ROe features Form C contacts for wiring outputs
as either normally open or normally closed. Fail-safe dip
switches on the 8ROe allow the installation technician to
specify the desired state of each relay in case of communications loss.
This board has been discontinued and is no longer
available for sale.
2.3.3EC-2s
Figure 2-17
The 16AIe (P/N 810-4000) is an Echelon-based input
board similar in function to its I/O Network counterpart,
the MultiFlex 16 (see Section 2.2.2). The 16AIe receives
input signals through any of 16 two-wire connections. The
board receives either digital or analog data from sensors
wired to any of the 16 input connections located on the
board.
This board has been discontinued and is no longer
available for sale.
- 16AIe
2.3.2The 8ROe (Discontinued)
Figure 2-18 - 8ROe
The 8ROe (P/N 810-4010) is an Echelon-based input
Figure 2-19 - EC-2
The EC-2 is an advanced refrigerated case controller
that doubles as a temperature and case status indicator.
During refrigeration and defrost, the EC-2 controls most
typical case functions, including fans, defrost, and a pulse
valve on the liquid side of the evaporator to regulate superheat.
The EC-2 29x version controls the refrigeration solenoid valve to allow the passage of refrigerant to the TXV
valve. The EC-2 39x version controls a pulse valve on the
liquid side of the evaporator to regulate Superheat control.
The EC-2 relies on a parent E2 to handle logging,
alarm control, defrost scheduling, and other case control
functions.
The EC-2 is designed to be mounted on the front of a
refrigerated case. The LED display shows the current case
temperature with one-tenths of a degree's accuracy. The
display can also show alarm codes to immediately notify
Echelon Network Boards and PeripheralsHardware Overview • 2-11
floor managers of alarms and notices. Other lights on the
display show the ON/OFF status of refrigeration, defrost,
and fans.
The EC-2 can be easily programmed using either the
four front-panel buttons or an optional infrared remote
control. For security, the buttons can be disabled to prevent tampering.
NOTE: There are several variations of the
EC-2. Contact Retail Solutions at 1-800-8292724 for more information.
2.3.4CC-100 Case Controllers and
CS-100 Case Circuit Controllers
A CC-100 case control board is a “smart” board capable of controlling all functions for a single case, including
lights, fans, defrost, anti-sweat, and suction side or liquid
side valve control. CC-100s perform these functions independently from the E2 RX controllers, but it does rely on a
parent E2 for logging, alarming, providing supplemental I/
O values, and coordinating defrost times among circuits.
There are four different models of the CC-100, each of
which controls a different type of valve.
1.CC-100P (P/N 810-3160)— Case controller for
liquid-side pulse valves (also called electronic
expansion valves, or EEVs). This model is capable of controlling up to two pulse valves simultaneously (for use in dual-evaporator applications
such as walk-in boxes).
2.CC-100LS (P/N 810-3170) — Case controller for
liquid-side stepper valves (EEVs).
3.CS-100 (P/N 810-3177) — Case circuit controller
for suction-side stepper valves (also called electronic evaporator pressure regulators, or EEPRs).
4.CC-100H (P/N 810-3171)— A special version of
the CC-100 that is used by a particular manufacturer . Thi s board controls temperature in a case
using suction-side stepper valves that regulate
pressure in the evaporator.
The CC-100/CS-100 board is shown in Figure 2-20.
Figure 2-20 - Case Controller (CC-100P shown)
2.3.5The ESR8 (Discontinued)
The ESR8 electronic suction regulator (P/N 810-3195)
is an Echelon Network-based control board that controls
up to eight separate electronic suction regulator (ESR)
stepper valves. The ESR8 uses suction-side variable position ESRs to vary evaporator pressure and control temperature for an entire circuit. The ESR8 offers an economical,
more efficient alternative to TXV control.
The board can be used with either Emerson Flow Controls ESR12 or ESR20 valves as well as a number of commercially available ESR stepper valves. Note that
Emerson Flow Controls supplies both a 24 Volt and a 12
Volt version of the valve. The ESR board is only compati-ble with the 12 Volt version of the valve.
The board features two LEDs for each valve which
indicate movement and direction. A status LED indicates
the general status of the board.
The TD3 is a digital display unit designed to show both
case temperature and product temperature for a refrigerated store case or walk-in freezer. The TD3 mounts on the
front of a case and connects to up to three input devices (a
case temperature sensor, a pr oduct temperature probe, and
either a defrost termination probe or thermostat). The realtime input values of these probes can be viewed on the
TD3’ s di gital display by pressing the function butto n on
the front panel to cycle through the temperatures.
The TD3 is connected to a central E2 RX controller via
the Echelon Network. Input values are sent to the E2 from
the TD3 for use in case circuit control.
A diagram of the TD3 layout is shown in Figure 2-22.
Figure 2-22 - TD3 Temperature Display Layout
Figure 2-23 - Facility Status Display
The FSD reports alarm information and more, (such as
temperatures, occupancy, case status, and setpoints) and
provides a centralized device for store personnel to review
information by communicating with the E2 via Ethernet
connectivity (minimum E2 firmware rev. 2.68F01).
The FSD has a touch screen color display for quick
navigation and can be mounted in a separate, remote location from the E2 controller, which enables alarms and
other relevant store information to be viewed from where
it is most convenient for the user.
The FSD can be configured to filter out notices and/or
return-to-normal alarms, and provides a quick review of
all advisories and detailed advisory information. The FSD
also receives alerts and provides annunciated alarms and
alarm information directly to store and department managers. This compact unit can be installed virtually anywhere
with a standard Ethernet connection and 120V power
source.
If more than one E2 controller is at a site, one E2 must
be set up as the alarm annunciator for that site. The FSD
will receive alarms from that alarm-annunciator E2 for the
entire site. The FSD will point only to a single E2 at a site
(it will not poll multiple controllers for alarms).
For more information, refer to the FSD Manual
(P/N 026-1400).
Echelon Network Boards and PeripheralsHardware Overview • 2-13
3Mounting
9.0"
10.5"
12.0"
3.75"
1.75"
10.5"
This section gives mounting instructions and dimen-
sions for all controllers and peripherals in the E2 system.
3.1Mounting the E2
The E2’s box body style is designed to be mounted
against or inside a wall or panel. If mounted against a surface, the controller will be 3.75” off the mounting surface.
If mounted inside a surface, the door and front section of
the back panel will rest 2.0” off the mounting surface. See
Figure 3-1, and Figure 3-2.
3.1.1Standard Mount
The standard mount is meant for the controller to be
mounted against a wall using the four mounting holes at
the rear of the enclosure shown in Figure 3-3. These holes
are accessible without any removal of boards inside the
enclosure.
3.1.2Recessed Mount
The recessed mount is meant for the controller to be
bolted against a surface using the eight mounting holes.
The unit may be mounted with the recessed back portion
of the unit inside the wall, and the front portion of the unit
visible through the hole in the wall (Figure 3-1 and Fig-ure 3-4).
For a recessed mount, you will need to cut a rectangular hole into the mounting surface 9.0” wide by 10.5” high
(22.86 cm wide by 26.67 cm high). Once this hole is cut,
mount the unit as desired using the eight outer mounting
holes shown in Figure 3-1 and Figure 3-4.
Figure 3-1
- E2 Front and Top Dimensions
Mounting the E2Mounting • 3-1
Figure 3-2 - E2 Side Dimensions
to the cut out (four screws and four nuts are included), but
the plate is equipped with a total of 14 holes for the best
possible fit.
Figure 3-3
Figure 3-4 - E2 Recess Mount Hole Locations
- Standard Mount (Inside Rear of Enclosure)
3.1.3Retrofit Mounting
The retrofit mounting plate and bracket allow the E2 to
be mounted where previous generation controllers (Einstein or REFLECS) were. These two options allow conversion of the flush-mounted Einstein and the sidemounted REFLECS.
Figure 3-5 shows the low-profile conversion mount
plate that allows a flush-mounted Einstein to be converted
to a low-profile mount. The plate slides over the back of
the E2 and is attached using the four holes pictured closest
Figure 3-5 - Conversion Plate for Flush Mount
Figure 3-6 - Conversion Bracket for REFLECS Side Mount
Figure 3-6 shows the conversion bracket that allows a
side-mounted REFLECS to be converted to a sidemounted E2. The conversion bracket is attached to the
back of the E2 using the two holes at the top and bottom of
the bracket, and aligning the oval openings with the oval
cut-outs in the back of the E2 case. Once the E2 is attached
to the conversion bracket, use the two holes in either side
of the conversion bracket (depending on which side is
needed) to mount the E2 to the wall and replace the
REFLECS controller.
Blank face control is designed to be used in a system
with more than one E2. It has no screen or keyboard and is
logged into remotely from another E2 on the Echelon network. The green General Status LED transmits status
information to the user. See Table 2-3 on page 2-3 for
more information on main board (CPU) status LEDs.
Blank face mounting dimensions are identical to the standard and recessed mount boxes. See Figure 3-3 and Fig-ure 3-4.
3.2Mounting I/O Boards
The 16AI, 8RO, 8DO, 4AO, 8IO, and MultiFlex
boards are usually installed by the refrigeration or building
equipment manufacturer. Therefore, the installe r need only
make the necessary connections between the E2 and the
cases, condenser boards, and/or HVAC units.
In some instances, an installer may be required to
mount an I/O board. There are no restrictions on the location of these boards; however, for ease of network configuration, it is recommended that the boards be located
adjacent to the E2. I/O boards may be mounted without an
enclosure, but they should be mounted in a location that is
not easily accessible to avoid tampering or damage.
for the MultiFlex, 16AI, 8RO, and the 8DO.
Figure 3-7
- Single Enclosure Mounting Dimensions
3.2.1 Single/Double Enclosures
The Single enclosure and Double enclosure are supplied with four mounting holes in the rear panel of the
enclosure. The mounting holes can be accessed without
removing any of the boards inside the enclosure. Figure 3-7 shows the dimensions and weight for the Single enclosure. Figure 3-8 shows mounting dimensions for the Double enclosure. When mounting boards inside the
enclosure, refer to Figure 3-9 for mounting dimensions
Figure 3-8 - Double Enclosure Mounting Dimensions
Mounting I/O BoardsMounting • 3-3
3.2.2Boards Without Enclosures
26501009
3.50"
4.00"
6.00"
4.75"
O 0.218"
TYP 4 PL
4AO BOARD
WEIGHT: 0.50 LB.
(Snap Track)
16AI, 8RO, 8DO, and Gateway boards not supplied
with an enclosure are supplied with a snap-track for easy
installation. The insulation sheet and I/O board must be
removed from the track before the track is mounted. The
snap-track is mounted using the 0.1875” mounting slots.
Figure 3-10 shows this installation procedure.
Figure 3-9 provides mounting dimensions for the Mul-
tiFlex, 16AI, 8RO, and the 8DO boards. Figure 3-11 pro-
vides mounting dimensions for the 4AO.
Figure 3-11 - 4AO Mounting Dimensions
The Gateway is typically mounted in the same area as
the site controller, near the controller’s 16AI, 8RO, and
other RS485 Network peripherals. The Gateway is
designed to fit into a standard 3" snap track (supplied with
the board) or may be mounted in a panel or on stand-offs.
Follow the dimensions in Figure 3-12 for panel mounting.
Figure 3-9
Figure 3-10 - 4AO, 8RO, or MultiFlex Snap-Track Installation
- 16AI/8RO/8DO Mounting Dimensions
Figure 3-12 - Gateway Board Mounting Dimensions
The Gateway should be mounted in an environment
with ambient temperature between -40°F and 150°F, with
a non-condensing relative humidity between 5% and 95%.
3.3Echelon Devices
3.3.116AIe and 8ROe
The 16AIe and 8ROe boards have the same mounting
dimensions as their I/O counterparts, the 16AI and 8RO
boards. For mounting dimensions and instructions, see
Section 3.2.2, Boards Without Enclosures (Snap Track),
and refer to Figure 3-9.
Generally, the case controller will be mounted within
the raceway or on top of the case. If a controller must be
replaced or installed in the field, it should be located based
on the specific design of the case.
Figure 3-13
- CCB Mounting Dimensions
3.3.3ESR8 (Discontinued)
The ESR8 board is slightly larger than the 16AI and
8RO boards, and is not supplied with a snap-track. If the
ESR8 is supplied without an enclosure, it is supplied with
0.500” long metal stand-off dowels which are pressed into
the mounting holes in the board (See Figure 3-14).
Figure 3-15 - Mounting Dimensions for the MultiFlex ESR
3.3.5TD3
The TD3 temperature display is almost always
mounted by the OEM as part of the construction of the
refrigerated cases. As such, field installations of TD3s are
rare.
TD3s are typically flush mounted on the front of a
refrigerated case in such a way as to be fully visible from
the sales floor. A hole one inch in diameter must be drilled
into the case to allow the TD3’s wiring harness to extend
into the case and connect to the network, the power source,
and the case-mounted probes. Figure 3-16 shows the
mounting dimensions of the TD3.
Figure 3-16 - TD3 Mounting Dimensions
3.4Modem/Communication Expansion Card Mount-
Figure 3-14 - Mounting Dimensions for the ESR8
3.3.4MultiFlex ESR
The MultiFlex ESR is supplied with a snap-track. If
the ESR8 is supplied without an enclosure, it is supplied
with 0.500” long metal stand-off dowels that are pressed
into the mounting holes in the board.
Modem/Communication Expansion Card Mounting (New Processor Board)Mounting • 3-5
ing (New Processor Board)
The E2’s modem/communication expansion card
mounts above the PIB in the back of the enclosure box as
shown in Figure 3-17. The standoffs and mounting holes
are located above the PIB in the back of the enclosure box.
Use the mounting screws and standoffs to secure the card
in place. The ribbon cable plugs into the "Modem/Com 6"
slot on the motherboard. For more information on the
modem/communication expansion card, see Section 4.3.2,
Modem/Communication Expansion Card (New Proces-
sor Board).
Figure 3-17
- Modem/Comm Card Mounting in E2
NOTE: Because the modem/communication
expansion card and four-channel repeater card
share the same mounting platform, they must
be used separately.
3.4.1Mounting PC-104 Cards in
E2 (Previous Generation Processor
Board)
3.4.1.1The Internal Modem
CAUTION: Power down the E2 before plugging the modem into the PC-104 slot. Failure
to do so can damage the modem and void the
warranty.
The E2’s internal modem mounts in the PC-104 slot
located at the top left of the E2 main board (See Figure 3-
18). Disconnect power to the unit
male pins on the back of the modem card into the E2’s PC104 slot. Use the standoffs and screws supplied with the
modem card to secure the card to the main board, as
shown in Figure 3-18. When finished, restore power to the
E2.
, and carefully plug the
Figure 3-18 - Mounting the Internal Modem Board
3.4.2Two-Channel and FourChannel Repeaters
3.4.2.1Mounting Repeaters Overview
Repeaters are used to extend the maximum length of a
segment of Echelon cable, or to act as a bridge between
two devices that are farther apart than the cable’s maximum node-to-node distance. Retail Solutions offers two
versions of repeaters for the E2 controller: an external
two-way repeater that comes in an enclosure (P/N 832-
1010), and a four-channel repeater mounted in the E2 (P/N
832-4830).
For more information about installing repeaters and
routers, please refer to the Repeater and Router Installa-tion and Networking Guide (P/N 026-1605).
3.4.2.2Mounting the Two-Channel
Repeater
The external repeater (P/N 832-1010) is externally
mounted within its own enclosure.
expansion card and four-channel repeater card
share the same mounting platform, they must
be used separately.
Figure 3-19
For external repeaters, the mounting bracket at the bottom of the enclosure has two 0.156” bolt holes on either
side. Use the bolt holes to mount these repeaters in the
field as necessary (see Figure 3-19).
When mounting external repeaters, keep in mind that
they require a 24VAC Class 2 power source in order to
operate. This will likely require a transformer such as P/N 640-0041 (110V) or P/N 640-0042 (220V) to be mounted
near the external repeater enclosure. Make sure there will
be enough space next to the repeater to mount the transformer.
- External Repeater Mounting
3.4.2.3Mounting the Four-Channel
Repeater
The four-channel repeater (P/N 832-4830) serves the
same basic function as the two-channel repeater: boosting
signal strength. However, the four-channel repeater is also
useful as a means of connecting the E2 to its associated
devices using more than one daisy chain.
With a four-channel repeater mounted in the E2, you
can run as many as three daisy chain segments out into the
field, each of which can be as long as the prescribed Echelon maximum wire length. The fourth channel of th e
repeater can be used to connect other E2s in a separate
daisy-chain, eliminating the need to run cable from the
field back to the next E2.
The standoffs and mounting holes are located above
the PIB in the back of the enclosure box. Use the mounting
screws and standoffs to secure the four-channel repeater in
place, and connect the repeater to the PIB with the two-pin
power connector located next to the battery.
Figure 3-20
- E2 Repeater Mounting
3.5Sensors and Transducers
3.5.1Pressure Transducers
Retail Solutions transducers convert pressure readings
to proportional electrical signals between 0.5 and 4.5
volts. The transducer is designed with a 1/8-inch male FPT
fitting for connection to a standard access fitting. If the fitting is configured with a Schrader valve, this fitting will
have to be removed and replaced with a 1/8-inch female
fitting. Each pressure transducer is supplied with 20 feet of
cable for connection to a 16AI input board.
3.5.1.1Mounting
The pressure transducers should be mounted in a vertical position (pressure port down) above crank case oil
level to prevent drainage of oil into transducer port.
3.5.2Inside Temperature Sensor
3.5.2.1Location
Inside temperature sensors are supplied within a wallmounted enclosure for attachment to a standard switch
plate.
The temperature sensor should be located in a central
location—within the zone to be measured—away from
doors, windows, vents, heaters, and outside walls that
could affect temperature readings. In addition, the sensor
Sensors and TransducersMounting • 3-7
should not be mounted above other sensors that generate
heat during operation (such as relative humidity sensors).
The indoor temperature sensor should be between four
and six feet from the floor.
3.5.2.2Mounting
Mount the sensor using the screws provided as shown
in Figure 3-21.
Figure 3-22 - Outside Temperature Sensor with Cover and
Clamp
3.5.4Insertion Temperature Probe
3.5.4.1Location
The 12-inch insertion temperature probe may be used
to monitor temperature in either the supply or return air
ducts of the AHU or RTU.
Figure 3-21
- Inside Temperature Sensor Mounting
3.5.3Outside Temperature Sensor
3.5.3.1Location
The outside or ambient temperature sensor should be
located on the north side of the building, preferably under
an eave to prevent sun-heated air from affecting the temperature of the sensor.
3.5.3.2Mounting
The temperature sensor may be mounted using any
standard tubing clamp. Retail Solutions also offers an aluminum cover and clamp (P/N 303-1111) which may be
mounted as shown in Figure 3-22 (fasteners are not provided).
3.5.4.2Mounting
The insertion probe may be mounted in any orientation
within the duct as long as the probe is in the air flow of the
duct. The probe housing should be secured using self-tapping screws. A 0.250” diameter hole is required for the
probe. Figure 3-23 shows the installation of the insertion
probe (self-tapping screws are not provided).
Figure 3-23 - 12-Inch Insertion Probe Mounting
3.5.5Supply and Return Air Sensors
In addition to the 12-inch insertion temperature probe,
Retail Solutions uses the same temperature sensor used for
outside and inside temperature to monitor supply and
return air temperature. When used in this application, the
sensors are supplied without enclosure covers. The sensors
should be mounted directly in the air stream of the supply
or return air duct. The sensors are not supplied with any
mounting hardware for this application.
3.5.6Refrigeration System Temperature Probes and Sensors
3.5.6.1Location
Retail Solutions supplies several temperature monitoring devices including bullet sensors, pipe mount sensors,
immersion probes, insertion probes, and sensors for high
temperature applications. Each of these sensors is generally installed on the system by the equipment manufacturer. If a device must be added to the system, refer to the
information supplied with the device and consult the
refrigeration equipment manufacturer. Table 3-1 lists some
typical sensor applications and the sensor or probe most
suited for that purpose.
ApplicationSensor Type
Condenser Outlet (Drop Leg)High Temperature Bullet
Liquid (Manifold)Pipe Mount
Suction TemperaturePipe Mount
Discharge AirBullet
Ambient Temperature (Outside)Bullet
Condenser SumpInsertion Probe
Defrost TerminationBullet
Table 3-1 - Sensor Application and Type
3.5.6.2Mounting Bullet and Pipe Mount
Sensors
Bullet or pipe mount sensors mounted on refrigerant
lines should be secured with a Panduit low temperature
cable tie, number PLT2 S-M120, or equivalent. For pipe
mount sensors, the curved surface should be placed
against the pipe and the tie should be positioned in the
groove on the top surface of the sensor. A second tie
should be used to secure the lead to the pipe for additional
support.
Sensors located on refrigerant lines should be insulated
to eliminate the influence of the surrounding air. A selfadhering insulation that will not absorb moisture is recommended to prevent ice logging at the sensor location.
The sensor should be positioned on the side of the line
as shown in Figure 3-24.
Figure 3-24 - Sensor Orientation
3.5.7Product Temperature
Probes
The product temperature probe is designed to be used
alongside food products in a refrigeration case or freezer.
The product probe uses a thermistor type temperature sensor in a sealed, cylindrical container (approximately 16
oz.). A magnet is contained at the bottom the probe’s
enclosure to allow easy attachment to a side or bottom of a
refrigeration case.
3.5.8Humidity Sensors and
Humidistats
3.5.8.1Indoor RH Sensor
The indoor relative humidity sensor should be
mounted in a central location within the zone to be measured, away from doors, windows, vents, heaters, and outside walls that could affect temperature readings. The
sensor should be between four and six feet from the floor.
Note that this sensor generates a small amount of heat;
therefore, do not mount temperature sensors directly
above RH sensors.
Mount RH sensor (P/N 203-5751) as follows:
1.With a flat-head screwdriver, push down the
middle tab on the top of the sensor case and
pop the lid off to expose the circuit board.
2.Insert the flat-head screwdriver into the two
slots on either side of the top of the sensor
case and twist to separate the back plate from
the case.
3.Remove the knock-outs from the back plate
before mounting so wires may be threaded
through.
Sensors and TransducersMounting • 3-9
4.Mount the back plate to the wall using the
two open mounting holes on the top and bottom of the plate.
5.Replace the cover on top of the back plate by
lining up the tabs, and snap the lid back into
place.
Figure 3-26 - Outdoor RH Sensor - Exploded View
3.5.8.3Duct-mounted Insertion RH
Probe
Retail Solutions specs a duct-mounted relative humidity (RH) sensor (P/N 203-5771) with a 0-5VDC output for
use in building control and anti-sweat control applications
using Retail Solutions input boards.
Figure 3-25
- Indoor RH Mounting Dimensions
3.5.8.2Outdoor RH Sensors
The outdoor RH sensor (P/N 203-5761)
The outdoor RH sensor (P/N 203-5761) should always
be mounted on the north side of the building if in the
Northern Hemisphere, or on the south side if in the Southern Hemisphere. The sensor should be mounted under an
overhang or otherwise out of direct sunlight (if possible).
Mount the RH sensor (P/N 203-5761) as follows:
1.Secure the rear side of the enclosure to the outside wall using the two mounting brackets, as
shown in Figure 3-26. The tube holding the sensor element should point straight down.
2.If you will be running the sensor cable through
the wall behind the sensor, cut or drill a hole in
the wall through the hole in the enclosure.
1.Cut a small circular hole in the duct large enough
for the sensor tube to fit through.
2.Bolt the sensor enclosure against the outside of
the duct wall so that the sensor element fits
through the hole and into the duct. The enclosure
may be mounted horizontally, as shown in Fig-ure 3-27 or vertically. The screws should be tight
enough for the foam gasket around the bottom of
the sensor to form an airtight seal between the
hole in the duct wall and the outside air.
The Dewpoint Probe (P/N 203-1902) should be located
4 to 6 feet from the floor with the probe pointing up. It is
recommended that the Dewpoint Probe be mounted in an
area where it will be exposed only to minimal amounts of
dust.
3.5.9.2Mounting
Mount the probe using the standard switch cover sup-
plied with the unit as shown inFigure 3-28.
Figure 3-29 - Light Level Sensor Typical Mounting
3.5.11Liquid Level Sensors
Retail Solutions’ probe type liquid level sensor (P/N
207-1000) is usually installed by the refrigeration and
equipment manufacturer. If a replacement sensor must be
installed in the field, refer to the instructions supplied with
the device, or consult the equipment manufacturer.
Figure 3-28
- Dewpoint Probe Mounting
3.5.10Light Level Sensor
3.5.10.1Location
The Light Level Sensor (P/N 206-0002) should be
located facing away from direct sunlight, preferably facing
north in the Northern Hemisphere or south in the Southern
Hemisphere.
3.5.10.2Mounting
The light level sensor is not supplied with mounting
hardware. The sensor should be mounted horizontally
through the knockout of a standard weather-resistant junction box. Figure 3-29 shows a typical mounting configuration.
3.5.12Refrigerant Leak Detectors
Retail Solutions supplies the Refrigerant Leak Detector System as a stand-alone unit that monitors refrigeration
leaks in up to sixteen zones. Consult the Refrigerant Leak
Detector Installation and Operation Manual (P/N 026-
The main processor board and power interface board (PIB)
are mounted side by side, one on each side of the box
enclosure.
- E2 Inside Enclosure
Open the door and expose the main processor board.
4.1.2Main Processor Board
Figure 4-2 - E2 Main Board (RX-100 Board Shown)
The main processor board is mounted on the hinged
door part of the enclosure, directly behind the keyboard.
Setting up the E2E2 Hardware Setup • 4-1
4.1.3Main Processor Board (Previous Version)
Figure 4-3
- E2 Main Board (Previous Version P/N 237-4800)
4.1.4Power Interface Board
4.2Powering the E2
Starting at the lower right side of the PIB, the first plug
is the 24VAC input. This must terminate into the power
supply transformer.
E2 requires 24VAC Class 2 power, which is supplied
by a non-center-tapped Class 2 transformer.
Retail Solutions supplies two transformers that may be
used to power E2s: one for use with 110VAC (P/N 640-
0041), and one for use with 220VAC (P/N 640-0042).
Both transformers are rated at 50VA, and each will power
one E2 unit.
4.2.1RS485 Ports
On the lower left side of the PIB are two RS485 Network connector ports. This is where all I/O boards (except
the case controllers, TD3, ESR8, and Echelon I/O boards)
are connected.
4.2.2RS485 Jumpers
There is one set of RS485 jumpers for each RS485
port. Jumpers JP1-3 are located directly above the first
connector port, and jumpers JP4-6 are located directly
above the second connector port. The RS485 termination
jumpers (JP1, JP2, JP3, JP4, JP5, and JP6) are used to terminate the devices at the beginning and end of an RS485
Network. If the E2 is the beginning of all RS485
I/O Networks, all three of these jumpers should be set to
the UP position.
Figure 4-4 - Power Interface Board
The PIB interfaces the power and most all communications with the main board, and contains all field wiring
connections.
4.2.3Echelon Network Connect
The next connector is the Echelon Network plug. The
one connector handles both input and output connections.
The input and output cables are connected directly to the
Echelon plug. This plug is the connection to the Case Controller (CC-100), the Evaporator Stepper Regulator board
(ESR8), TD3s, and other E2s.
4.2.4Echelon Jumpers
The two Echelon jumpers (JP7 and JP8) are located
next to the Echelon Network port.
Additional information about Echelon Networking and
terminating the network can be found in Section 8.3, Ech-elon Network Structuring (Daisy-Chains).
The E2 has many plug-in card options to choose from:
• Plug-in Echelon card with mounting screw
• RS485 Modem/communication expansion card
• Plug-in digital I/O Network card
• RS485 port card
• Plug-in Four-Channel Internal Repeater
• Plug-in modem with mounting screws and standoffs (previous generation processor board only)
4.3.1Echelon Card Plug-In (P/N
537-4860) with mounting screw (P/N
101-4201)
Echelon is a two-conductor network that interconnects
E2s and other associated devices. All Echelon devices are
wired together using the daisy-chain method of network
structuring. For the E2 to communicate on the Echelon
Network, the plug-in card must be connected. No Echelon
Network communication can occur without the card.
The plug-in Echelon card connects to the main processor board on the far right side of the board just above the
Power Interface Board (PIB) connector. The connector
for the plug-in Echelon card is labeled Echelon Plug-In so
it is easy to find.
Figure 4-5
Add-On E2 PeripheralsE2 Hardware Setup • 4-3
- Echelon Card
4.3.2Modem/Communication
COM6
RS232
COM6
RS485
Plug-In
Modem
COM3
COM6
RS232
COM6
RS485
COM3 RS232
Plug-In for
External Modem
COM6
RS232
COM6
RS485
Expansion Card (New Processor
Board)
The E2’s modem/communication expansion card
mounts above the PIB in the back of the enclosure box as
shown in Figure 4-6. See Table 4-1 for modem expansion
card types and descriptions.
Modem P/NDescription
637-4871
Modem/com expansion card with modem and RS485
serial communication port plug-in.
Note that the RS232 and RS485 ports are counted as one
port (COM6); only one connector at a time may be used.
The COM6 RS232 will be selectable in future versions
of E2.
Figure 4-6
Mounting
- Modem/Com Expansion Card Layout and
637-4872
637-4873
Modem/com expansion card with an RS232 plug-in
(COM3) that can interface with an external modem, and
an RS485 serial communication port plug-in. This model
comes with a cable that has a male DB-9 header and a
DB-9 to DB-25 converter (not shown) to support the
standard external modem interface.
Note that the RS232 and RS485 ports are counted as one
port (COM6); only one connector at a time may be used.
The COM6 RS232 will be selectable in future versions
of E2.
Com expansion card with RS485 serial communication
port.
Note that the RS232 and RS485 ports are counted as one
port (COM6); only one connector at a time may be used.
The COM6 RS232 will be selectable in future versions
of E2.
Table 4-1 - Modem/Com Card Part Numbers and Descriptions
4.3.3Plug-In Modem Card (P/N
537-4870) with mounting screws
(P/N 101-4038) and standoffs (P/N
107-9440) (Previous Generation Pro-
cessor Board)
The E2’s internal modem mounts in the PC-104 slot
located at the top left edge of the E2 main processor board
(SeeFigure 3-18on page 3-6). Disconnect power to the unit, and carefully plug the male pins on the back of the
modem card into the E2’s PC-104 slot. Use the standoffs
and screws supplied with the modem card to secure the
card to the main processor board, as shown in Figure 3-18on page 3-6). When finished, restore power to the E2.
4.3.4Plug-In Digital I/O Network
Card (P/N 537-4880)
This card adds two user-programmable digital outputs
and two digital inputs to enable connection of switches
and relays (relay contacts are rated at 3A up to 24 VAC).
The plug-in Digital I/O Network card connects to the
power interface board to the right of the two fixed RS485
I/O Network connectors.
The plug-in Digital I/O Network card LEDs can be
used to determine the status of normal operating parameters for the card.
Plug-In Digital I/O
Status
Card LEDs
Red D1 (Out 1)ON: Relay Output 1 is On
Red D4 (Out 2)ON: Relay Output 2 is On
Table 4-2
- LED Status for Plug-In Digital I/O Card
4.3.5E2 RS485 Port Card (P/N
537-4890)
The E2 main board has two RS485 Network channels,
allowing you to connect input and/or output boards via the
RS485 Network. This optional card adds a second RS485
port (COM4) to the E2, allowing a connection to the ISD
compressors, Control Link devices, and other supported
MODBUS devices.
The plug-in RS485 Network card connects to the
power interface board between the two fixed RS485 I/O
Network connectors and the battery.
4.3.5.1LEDs
The plug-in RS485 Network card LEDs can be used to
determine the status of normal operating parameters for
the card.
RS485 Plug-In
Status
Card LEDs
Yellow D5 (RX1)ON: Communication is being
received on RS485 Port 2A
Yellow D2 (RX2)ON: Communication is being
received on RS485 Port 2B
Red D1 (TX)ON: Communication is being
sent on RS485 Port 2A and
2B
Table 4-3
- LED Status for RS485 Plug-In Card
4.3.6Plug-In Four-Channel Internal Repeater
The four-channel repeater (P/N 832-4830) boosts signal strength on Echelon Networks. However, the fourchannel repeater is also useful as a means of connecting
the E2 to its associated devices using more than one daisy
chain.
With a four-channel repeater mounted in the E2, you
can run as many as three daisy chain segments out into the
field, each of which can be as long as the prescribed Echelon maximum wire length. The fourth channel of the
repeater can be used to connect other E2s in a separate
daisy-chain, eliminating the need to run cable from the
field back to the next E2.
The plug-in Four Channel Internal Repeater card connects above the power interface board on the case mounts
using standoffs and screws.
See Section 3.4.2.3, Mounting the Four-Channel Repeater for more information.
4.4Battery Testing and
Replacement
WARNING: Fire, explosion, and severe burn
hazard. Do not recharge, disassemble, heat
above 212°F (100°C) incinerate, or expose
contents to water.
Battery replacement should only be performed by a
qualified, trained technician.
The 3.6V battery located on the E2 processor board
protects log and alarm data during power loss. It is very
important that each active E2 unit have a battery, and
Battery Testing and ReplacementE2 Hardware Setup • 4-5
therefore the E2 has several features that warn you of low
battery conditions and allow you to test and replace the
battery.
4.4.1Low Battery Notification
The E2 keeps track of how long the E2 battery has
been active, and will display a battery icon at the top
of the E2 screen whenever the battery is reaching the end
of its recommended battery life. If a battery has less than
30% of its battery life left, a yellow battery icon will
appear at the top of the screen. If the battery has less than
10% life left, or if the battery switch is currently disabled,
a red battery icon will appear.
4.4.2The Battery Enable Switch
The battery enable switch is located near the battery
clip on the processor board. This switch should be set to
OFF whenever the E2 unit is not being used to preserve
battery life. If the E2 unit is powered up with this switch
set to OFF, a red battery icon will appear at the top of the
screen. Check the position of this switch, and set it to the
ON position. You will have to perform a battery test to
clear the battery icon from the screen. See Section 4.4.3, Battery Test below:
4.4.3Battery Test
and replace it with an identical 3.6V battery obtained from
or approved by Retail Solutions. DO NOT USE AA BATTERIES IN THIS BATTERY SLOT.
After replacing the battery, you must tel l E2 the battery
has been replaced so it can reset its battery life counter.
1.Log in to E2 (level 4 password or higher).
2.Press
3.Move the cursor to the Replace Battery field.
4.Make sure the new battery is in place, and
If successful, the battery icon should disappear from
the top of the screen. If it is still there, check for proper
battery placement, verify the battery enable switch position, and repeat this procedure.
, followed by --- to
navigate to the System Tests screen.
Press
for Yes, then press .
press
.
E2’s automatic calculation of battery life is based on
the number of hours it has been active, not its voltage. If
you wish to know for certain if the battery is good, you can
perform a battery voltage test from the E2 front panel. You
will need to perform this test to remove a yellow or red
battery icon from the screen. If you are replacing the battery and wish to remove the battery icon from the screen,
see the instructions under Section 4.4.4, Battery Replace-ment - Qualified T echnicians Only.
To perform a battery test:
1.Log in to the controller (level 4 password or
higher).
2.Press
3.Move the cursor to the Battery Test field. Press
, followed by --- to
navigate to the System Tests screen.
for Yes and press .
The dialog box that appears will show the CPU Battery
status (OK or FAIL) and the Battery Switch position (ON
or OFF). If the CPU Battery is OK and the switch position
is ON, the battery icon will disappear. Otherwise, the battery should be replaced or the switch set to ON.
4.4.4Battery Replacement - Qualified Technicians Only
To replace the battery, remove it from the battery clip
1.Connect the I/O or MODBUS Network to one or both of the E2
RS485 I/O or MODBUS Network ports. (A maximum of 31 devices
can be wired to each I/O or MODBUS Network port.)
2. For each I/O or MODBUS Network port, set RS485 termination
jumpers UP if at either end of a daisy chain. Otherwise, set jumpe rs
DOWN.
3. Connect the E2 to the Echelon Network. If possible, connect shield
wires to a separate earth ground outside of the E2 enclosure.
4. Set the Echelon Network jumper UP (Terminated) if the E2 is
at either end of an Echelon daisy-chain. Otherwise, set the jumper
DOWN (Not Terminated).
5. Connect earth ground to one of the two ground terminals
provided. Use 12 AWG (preferred) or 14 AWG wire and keep as
short as possible (less than 12 inches preferred).
6. Connect 24VAC to the power terminals.
7. Flip the power switch to the ON position. When 24VAC has been
applied to the board, the green LED will illuminate.
4
3
Earth
Ground
Connector
AC1
AC2
AC1
AC2
24VAC
24VAC
6
12 or 14 AWG
RS485 I/O or MODBUS Net
JP7
Level IV, 22 AWG, Shielded
Max Daisy Chain Length:
Feet: 4592 Meters: 1400
P/N 135-2300 Non-Plenum
P/N 135-2301 Plenum
(1 Pair, 1000 Feet)
(1 Pair, 1000 Feet)
NOT TERMINATED
TERMINATED
BLACK
SHIELD
WHITE
TO OTHER
RS485
DEVICES
_
0V
+
I/O or MODBUS Network
Echelon
LON
LON
T
O
O
T
H
E
R
E
C
H
E
L
O
N
D
E
V
I
C
E
S
T
O
O
T
H
E
R
E
C
H
E
L
O
N
D
E
V
I
C
E
S
Earth
Ground
SHIELD
7
6
OBSERVE WIRE
COLOR POLARITY
Battery Testing and ReplacementE2 Hardware Setup • 4-7
5Serial Configura-
tion
5.1Overview
E2’s Serial Configuration is the centralized location
where all communication ports (COM ports) may be set up
in the E2 controller. To support the increasing number of
third-party devices that E2 can communicate with, E2 has
the expanded flexibility of dynamic COM ports that will
support different types of communication protocols to
meet the specific needs of the user.
Previously, all COM ports were pre-defined to support
a specific type of serial device. E2 now has five configurable COM ports that can communicate with different
devices on the network.
5.2COM Ports
The Serial Connection Manager is located in General
Setup under the Serial tab. To access Serial connections to
set up the COM ports, press Alt + M, or from the E2 Main
Menu:
5.3Serial Device and Software Setup
After the COM card has been connected to the E2, set
up the associated COM port in the Serial Connection Manager:
Figure 5-1
- Serial Configuration Screen
1.
- System Configuration
2.
- System Information
3.
- General Controller Info
4.C3: Serial tab
T o begin, first select the COM port you wish to set up,
choose the protocol, and set the baud rate.
The user associates the various hardware devices with
the COM ports listed under the Serial tab. Five COM ports
have user-configurable values such as baud rate and connection type settings.
Pre-Sets
COM1 is pre-set for serial connection. COM3 is preset with a modem-only connection type. The COM5 connection is a non-configurable E2 keyboard port.
NOTE: If a COM card is not connected to the
E2, its associated COM port will not be visible
in the Serial Configuration screen.
OverviewSerial Configuration • 5-1
E2 PIB COM PORT ASSOCIATIONS
COM1
COM4
COM6
COM2
Serial Device
RS485 COM Port
(2 Connectors)
RS485 COM Card
(2 Connectors)
Serial Device
RS232 Port
POWER INTERFACE BOARD
(PIB)
E2 Modem/Expansion
COM Card Mounted
Above PIB
Plug-In
Modem
Card
COM3
E2 Enclosure (Right Side)
RS485
RS232
COM1
Serial Device
RS232 Port
COM2
Serial Device
RS485 COM Port
(2 Connectors)
Plug-In
Modem
Card(s)
COM3
COM4
RS485 COM Card
(2 Connectors)
COM6
E2 Modem/Expansion
COM Card Mounted
Above PIB
RS485
RS232
Figure 5-2
- Associated Device Connections and COM Ports
E2 COM#ASSOCIATIONSCONNECTOR
COM1COM1 is a pre-set serial connection type (for a PC or laptop) and is located on the RS232
COM2COM2 may be configured to the type of serial devices you are connecting:
COM3COM3 is a pre-set connection type for modems only (optional). The E2 modem/expansion
COM4COM4 is located on the optional RS485 COM card for configurable devices. Configure
COM6COM6 is located on E2's optional modem/expansion communication card, which can be
- COM Ports with Associated PIB and Card Connections - Refer to Figure 5-2
NOTE: MODBUS can be configured on multiple ports.
port on the PIB. The baud rate is configurable.
I/O Net (default), ISD 1.0, IMC/Prodigy, or MODBUS 1-3. Thes e devices are connected via
the RS485 connectors (for wiring convenience, two connectors are available) on the PIB.
The connection type and baud rate are configurable.
communication card (P/N 637-4871) has a plug-in modem that uses the phone line jack (RJ-
11). The 637-4872 version has a plug-in for an external modem. Configure the baud rate
and modem type for either the internal modem or the external modem.
COM4 to the type of device you are connecting: I/O Net, ISD 1.0 (RX unit default), IMC/
Prodigy (BX/CX unit default), or MODBUS 1-3. The RS485 COM card is connected above
the COM2 dual RS485 connectors on the PIB. The connection type is configurable.
configured for RS485 operation. Configure COM6 to the type of device you are connecting:
I/O Net, ISD 1.0 (RX unit default), IMC/Prodigy (BX/CX unit default), or MODBUS 1-3.
(RS232 operation will be available in future versions of E2.) Both connectors cannot be
used at the same time. Configure the connection type, baud rate, and parity. (The expansion
card mounts onto the four standoffs located on the back of the E2 enclosure above the PIB,
and is compatible with E2 processor board version 237-4801 only). For more information
on this card, refer to
Section 4.3.2 of this manual.
6The RS485 Network and Hardware
Setup
Previous versions of E2 hardware and firmware before
version 2.30F01 only supported one I/O network port,
with an optional expansion card that could be used for
connection to Copeland ISD compressors or IMC/Prodigy
S-Bus rooftop unit controllers. Beginning with E2 version
2.30F01, E2s now have up to three RS485 network ports,
each of which may be configured as an I/O network, IMC/
Prodigy, ISD, or ECT MODBUS port.
Section 5, Serial Configuration of this manual covers
how to assign COM ports COM2, COM4, and COM6 to
different RS485 network types. Section 6 (this section)
explains the network types, the hardware that may be connected to each type, and how to configure the devices.
6.1The I/O Network
All boards and controllers manufactured by Retail
Solutions for communication with E2 via RS485 are generally referred to as I/O boards, and the network they are
connected to is referred to as the I/O network (or I/O Net).
A COM port configured as I/O Net may connect with
up to 127 I/O boards. This network is used by the E2 to
read data from the input boards and to send commands to
the analog and digital output boards. Some unit controllers, such as CCB case controllers and MultiFlex RCBs,
also communicate with the E2 via the I/O Network.
6.1.1I/O Board Names and Terminology
There are many input, relay output, analog output, and
combination I/O boards available from Retail Solutions
for use with the E2. However, separate from the various
MultiFlex unit controller models, E2 only recognizes four
different types of I/O boards: 16AI, 8RO, 4AO, and 8DO.
All E2-compatible I/O boards communicate with E2 as if
they are one or more of these types of boards.
In this manual and in the E2 interface, when you
encounter these board names, bear in mind that they are
terms that represent many types of boards. Tabl e 6-1
describes all the actual boards or board components for
each E2 “board type.”
Board
Max #Translation
Type
16AI16Any I/O board that
has digital and analog inputs. The
inputs of a combination I/O board (8IO
or MultiFlex combo
board) are by themselves treated as one
16AI.
8RO31Any I/O board with
relay outputs. The
relay outputs of a
combination I/O
board (8IO or MultiFlex combo board)
are by themselves
treated as one 8RO.
4AO16Any I/O board with
analog outputs. The
analog outputs of a
combination I/O
board (8IO or MultiFlex combo board)
are by themselves
treated as one 8RO.
8DO16Any I/O board with
+12VDC digital
pulse outputs.
ARTC/
RTU
RCB32MultiFlex RCB
32Rooftop HVAC con-
troller board
advanced rooftop
unit controller
Boards That
Match Board Type
•16AI (discontinued)
•8IO (discontinued)
•MultiFlex 16
•The inputs on all MultiFlex combo boards
(88, 88AO, 168,
168AO, and 1616)
•All versions of the
Gateway board (some
versions behave like
as multiple 16AIs)
•8RO
•8ROSMT
•The relay outputs on
all MultiFlex combo
boards (88, 88AO,
168, 168AO, and
1616 (which behaves
as two 8RO boards)
•8IO (discontinued)
•4AO
•8IO (discontinued)
•The analog outputs on
the MultiFlex 88AO
and 168AO
8DO (including all
•
versions of the
PMAC and PMAC
II anti-sweat controller)
•Digital outputs on the
MultiFlex 168DO
MultiFlex RTU and
ARTC (discontinued)
MultiFlex RCB
Table 6-1 - Board Types and Boards Included in Each Type
The I/O NetworkThe RS485 Network and Hardware Setup • 6-1
Board
Table 6-1
Max #Translation
Type
PAK 32MultiFlex PAK rack
controller
CCB99CCB case controllersCCBs
ESR31MultiFlex ESR valve
controller
CUB-II32Single condensing
unit controller (one
compressor and up to
4 condenser fans)
- Board Types and Boards Included in Each Type
Boards That
Match Board Type
MultiFlex PAK
MultiFlex ESR
MultiFlex CUB II
6.1.2MultiFlex-Plus (+) Board
The MultiFlex-plus board contains a replacement
RS485 transceiver chip that presents less of a load on the
network than a non-plus board. This increases the maximum number of devices that can be placed on the network,
but not the number of board types an Einstein controller
can communicate with.
The MultiFlex-plus board now accounts for only 1/8
the load of a non-plus board with 32 total devices on the
network (one Einstein controller + 31 boards). This new
conversion allows for the placement of 256 devices on the
network (one Einstein controller + 255 boards). The number of boards an Einstein controller can support is
increased from 31 up to 255 using MultiFlex-plus boards
only. In other words, the number of I/O net devices are no
longer restricted by the I/O net 31-node limitation.
X + (Y • 8) < 256
6.1.3Wiring Types
Retail Solutions specifies all RS485 I/O and MODBUS wiring used by the E2 must be Belden 8641
(24AWG, 300V, Retail Solutions P/N 135-8641); Belden
8761 (22 AWG, 300V not stocked by Retail Solutions); or
a 600V-shiel ded 22AWG equivalent stocked by Retail
Solutions (P/N 135-0600). These are two-connector
shielded twisted pair cables that support a maximum daisy
chain cable distance of 4000 feet (1219 m) between the E2
and the end device on the network.
6.1.4The I/O Network Structure
(Daisy Chains)
The RS485 Input/Output (I/O) Network connects all
input and output communication boards together in a single open communications loop. This loop, or “daisy
chain,” connects the E2 to multiple input and output communication boards, and terminates at the last input or output board on the network. A diagram of this network
arrangement is shown in Figure 6-1.
NOTE: The MultiFlex-plus board replaces the
old-style MultiFlex boards and is currently
being shipped.
6.1.2.1Board Designation
Plus boards are always identified with a plus (+) sign
that appears on the plastic insulating cover on the top of
the board, after the board name.
6.1.2.2Board Calculations
With X as the number of plus boards and Y as the number of non-plus boards, use the following equation to
ensure that the number of devices on your network has not
exceeded the maximum load limitation of the network. For
example, if the total number of devices is less than 256,
the maximum load limitation has not been exceeded.
Site environments will frequently have numerous
sources of high EMI, or “noise,” that must be accounted
for when routing RS485 network cable. Although the
cable is shielded against noise, the installer must follow
best practices for minimizing network noise.
In general, installers should follow these guidelines
when installing RS485 networks:
• Avoid running cable next to noise-generating
devices, such as motor starters, contactors, inverters, fluorescent light ballasts, arc welders, etc. If
possible, keep cable less than 1 foot away from
noise-generating devices (ideally, at least 5 feet).
• Do not run RS485 cable in the same conduit as
high-voltage wiring, such as 120VAC or 240VAC
power wiring. Keep RS485 cable a minimum of 3
inches away from high-voltage wiring (ideally, at
least 12 inches). If RS485 must cross paths with
high-voltage wiring, cross them perpendicular —
running RS485 and high-voltage wire in parallel
increases the amount of noise induced on the network.
• Ensure you are grounding each input device’s 0V
power terminal to a separate earth ground, and setting the termination and biasing jumpers as
instructed in Section 6.1.8, Setting the Terminating and Biasing Jumpers.
For more instructions on best practices for minimizing
noise, refer to publication 026-1903, E2 Controller Wir-ing Practices, available in the Product Manuals section of
the Emerson Climate Technologies Web site:
www.emersonclimate.com
6.1.6Network ID Numbers (Board
Numbers)
Each device on an RS485 segment has either a network
dip switch or rotary dials that must be used to assign the
board a unique network ID number.
The network ID number makes a board unique from
other boards on the network of the same ty pe. This allows
E2 to find it and communicate with it easily.
Boards of the same type should be numbered in
sequence, starting with one and continuing with two,
three, and so forth. For example, if a segment contains
four 16AI boards and five 8RO boards, you should number the 16AIs one, two, three, and four; and the 8ROs one,
two, three, four, and five. The same should be done with
multiple 4AO and 8DO boards, and IRLDS leak detection
units.
For all boards, except 8IO and 8DO boards, the network dip switch labeled S1 (or S3 for the 16AI board) is
used to set the unique board number of the unit and the
baud rate. The 8IO and 8DO uses rotary dials to set the
board number of the unit.
Numbering the MultiFlex Combination I/O Boards
When it comes to network numbering, the MultiFlex
Combination Input/Output boards (88, 88AO, 168,
168AO, and 168DO) are special cases. They are actually a
combination of three types of Retail Solutions boards: the
inputs are configured like a 16AI, the relay outputs are
configured like an 8RO, and the analog outputs are configured like a 4AO.
When a MultiFlex combo board is present on the network, it must be addressed like all three board types.
Therefore, when numbering these boards, you must set a
unique number for both the 16AI, 8RO, and 4AO components of the board.
Addressing the MultiFlex Boards
For MultiFlex boards, set positions 1 to 5 on S3 for the
16AI component and positions 1 to 5 on S4 for the 8RO
component. Set positions 6 to 8 on S4 for the 4AO or 4DO
segment. For MultiFlex board controllers, use positions 1
to 5 on S3 to set the address.
Addressing the MultiFlex ESR Boards
The MultiFlex ESR uses standard Retail Solutions I/O
Network addressing. Set positions 1 to 5 on S1 to set the
network ID (address) of the MultiFlex ESR from 1 to 31.
6.1.7Setting the Baud Rate
All I/O boards have dip switches that determine the
baud rate at which they communicate. Currently, the baud
rate dip switch in network components may be set at either
4800, 9600, 19200, and 38400. Setting of the baud rate is
accomplished using dip switches (refer to the board’s
installation sheets at the end of this section for specific dip
switch settings).
Baud Rate for the E2
The baud rate default for E2 is 9600.
Baud Rate for the Gateway
The Gateway can be set to either 9600 baud or 19.2K
baud by dip switch #6. “ON” places the rate at 9600 baud
while “OFF” sets it at 19.2K baud.
Dip switches 6 and 7 control the baud rate at which
the Gateway communicates with the site controller on the
RS485RS485 Network. These switches must be set to the
same baud rate setting as the E2 or REFLECS (usually
9600 baud).
Dip switch 8 controls the baud rate at which the Gateway communicates with the other devices on the Receiver
Bus Network. This baud rate may only be set to either
9600 baud (switch DOWN) or 19200 baud (switch UP).
All Gateways and receivers on the Receiver Bus Network
must have the same baud rate dip switch setting. It is recommended you use 9600 baud as the Receiver Bus Network baud rate.
Baud Rate for the 8IO, 8DO, and ARTC
There are three I/O devices that do not have baud rates
determined by dip switches. They are as follows:
The I/O NetworkThe RS485 Network and Hardware Setup • 6-3
1.The 8IO - this board automatically detects the
THE TERMINATING JUMPERS MUST
BE IN THE UP POSITION IF AT THE
BEGINNING OR END OF THE NETWORK.
THE TERMINATING JUMPERS MUST
BE IN THE DOWN POSITION IF NOT AT
THE BEGINNING OR END OF THE NETWORK.
I/O BOARD AND E2 TERMINATING JUMPERS
baud rate being used by the I/O devices on the
network, and adjusts to match their baud rate.
2.The 8DO - this board automatically detects the
baud rate being used by the I/O devices on the
network, and adjusts to match their baud rate.
3.The ARTC - this board is fixed at 9600 baud.
Baud Rate for MultiFlex Boards
On all MultiFlex boards, switches 6 and 7 on S3 are
used to set the baud rate. To communicate at 9600 baud,
set switch #6 to the UP position and #7 to DOWN. For
19200 baud, set switch #6 to the DOWN position and #7
to UP.
Baud Rate for the MultiFlex ESR
Set the baud rate on the MultiFlex ESR board by set-
ting switches 6 and 7 on the network address terminal
(labeled S1).
T o communicate at 9600 baud, set switch #6 to the UP
position, and switch #7 to DOWN. For 19200 baud, set
switch #6 to the DOWN position and switch #7 to UP.
(Currently, 9600 baud is recommended).
Recommended Baud Rate
The baud rate should be set to 9600 baud in all cases.
6.1.8Setting the Terminating and
Biasing Jumpers
The I/O Network connector, for all I/O boards and the
E2, has a set of three terminating jumpers. They are the
jumpers positioned closest to the I/O Network connector.
The E2 has jumpers next to each of the COM ports that
can be configured as an I/O network (COM2, COM4, and
COM6).
The purpose of the jumpers is to provide network termination resistance and network biasing to the two ends,
or termination points, of the daisy chain. One device at the
beginning and one device on the end must be terminated
and biased by placing all three jumpers in the UP position.
All other devices on the daisy chain must have all three
jumpers set to the DOWN position. Figure 6-2 shows the
proper terminating jumper settings for the E2 and for all I/
O boards.
Figure 6-2
- I/O Network Termination Jumper Settings
6.1.9Powering the I/O Boards
All models of E2-compatible I/O boards require
24VAC Class 2 input power. Some boards such as the
16AI, 8RO, 4AO, 8DO, MultiFlex ESR, and MultiFlex 16
use a center-tapped power source. All other models, such
as the 8IO and MultiFlex Combination I/O boards, may
use non-center tapped power sources.
Retail Solutions supplies a wide variety of 24VAC
transformers with varying sizes and either with or without
center taps. Table 6-2 shows the transformer sizes and
whether they are center-tapped or non-center-tapped.
Table 6-3 lists each board, the board’s rating, and whether
To select a power transformer for a board or a series of
boards:
Example: For boards totalling 48VA, a 56VA trans-
former is sufficient, since 56VA is greater than 48VA.
I/O Board Transformers sho u ld be located within 10
feet of the board it is powering, preferably within the
board enclosure.
3.38024Yes
0.751524No
1.02024No
- Device Power Requirements
1.Determine what the total VA is for the boards
that will be powered by the transformer (see
Table 6-3).
Example: Two MultiFlex 168AOs (15 VA
each), and one 8DO (18 VA) boards are to
be powered by one transformer. The total
VA is:
2.Use a transformer that has a power rating
higher than the total calculated VA (see Table 6-2).
6.1.9.1Wiring Types
For powering I/O boards, use only the listed wire types
from Table 6-4. Three-conductor non-shielded cables are
the recommended wire for connecting between the center
tapped transformer and the I/O boards. The third conductor should be connected to earth ground. If boards use a
center-tapped transformer, also connect the center tap to
the earth grounded third conductor.
Power Wiring Types
14 AWGBelden 9495
18 AWGBelden 9493
Table 6-4 - Power Wiring Types
The wire length from the transformer and the number
of boards connected to the same wire determines the type
wire gauge used. In most cases, the distance between the I/
O boards and the transformer that supplies power to them
is not enough to be concerned with. But it is very important not exceed this maximum wire length or the boards
will malfunction.
Use these formulas to determine if the wire gauge you
are using fits within specification:
14 AWG:
Feet = 1920/VA
18 AWG:
Feet = 739/VA
(VA is the total VA rating of the I/O boards)
For example, if you had an 80 VA load:
14 AWG: 24 ft
18 AWG: 9 ft (rounded down)
Figure 6-3
same transformer powering the input board as long as the
resulting total load of both the input board(s) and the sensor(s) connected to the transformer does not exceed the
transformer’s VA rating. Consult Section 6.1.9, Powering
the I/O Boards, and Section 8.6.1, Powering Echelon
Devices for more information.
- Power Wire Lengths
Sensors requiring 24VAC can be powered from the
6.1.10Board Installation
The following pages give step-by-step graphical
instructions on all steps necessary to install each I/O Network device so that it is powered up and able to communicate with E2. If these devices have not yet been mounted,
refer to Section 3.2, Mounting I/O Boards for mounting
instructions for these devices.
6.2IMC/Prodigy Rooftop
Unit Controllers
All E2 Building Controller (BX) versions 2.21F01 and
IMC/Prodigy Rooftop Unit ControllersThe RS485 Network and Hardware Setup • 6-5
above may communicate with IMC/Prodigy rooftop units
equipped with IMC/Prodigy control boards version M4-1
or higher. E2 controllers version 2.30F01 and above may
use any of the RS485 I/O ports (COM2, COM4, or
COM6) as a IMC/Prodigy communication port. Version
2.21F01 E2 units may only connect IMC/Prodigys to an
RS485 Expansion Card. Connectivity to IMC/Prodigy is a
licensed feature and must be purchased from Retail Solutions.
The IMC/Prodigy interface has its own technical bulletin explaining installation, network setup, and E2 configuration. Refer to Techni cal Bull etin 026-4117.
6.3ECT MODBUS
E2 controllers version 2.30F01 or greater may select
ECT MODBUS as a network type. The E2 communicates
with MODBUS devices including but not limited to Control Link CD, Control Link RSC, and Control Link ACC.
The Control Link products have their own documents
explaining device configuration, networking, and E2
setup:
• 026-4600 - Control Link RSC Installation Instruc-
tions
• 026-4601 - Control Link CD Installation Instruc-
tions
• 026-4703 - Control Link ACC Installation Instruc-
tions
• 026-4602 - Control Link ECT MODBUS Network-
ing to E2s (covers MODBUS installation for all
Control Link models)
6.3.1Control Techniques Drive
(VSD)
Using the MODBUS network type, E2 controllers can
communicate with the Control Techniques variable-speed
drive (VSD). There are three different VSD models the E2
communicates with: Commander SE, Commander SK,
and Unidrive SP drive types.
Note that all CT drives are 2 stop bits, with no parity.
Since ECT MODBUS specifies 1 stop bit, CT drives will
configure the General Services setting for stop bits and
always communicate with the drives using 2 stop bits. The
E2 calculates the difference and adjusts for the additional
stop bit.
Configure the COM port the CT drive will connect to
by pressing Alt + M to open the serial configuration manager. Set the COM port to MODBUS and the baud rate
(match the baud rate on the CT drive). For more information on setting up serial ports, go to Section 5, Serial Con-
figuration.
The Control Techniques VSD has its own technical
bulletin that explains interfacing with E2 (P/N 026-4122).
The installation and operation manual explaining the VSD
is maintained by Control Techniques. Contact your Control Techniques representative for a copy of this manual.
6.3.2Copeland Discus with CoreSense Diagnostics (ISD)
E2 controllers version 2.21F01 and above may communicate with Copeland ISD compressors using the ECT
MODBUS network. E2 controllers versi o n 2.30F01 and
above may use any of the RS485 I/O ports (COM2,
COM4, or COM6) as a Copeland ISD communication
port. Version 2.21F01 E2 units may only connect Copeland ISD compressors to an RS485 Expansion Card.
The installation and operation manual explaining the
Copeland ISD interface is maintained by Copeland. Contact your Copeland representative for a copy of this manual.
6.3.3XR35CX, XR75CX, and
XEV22 Case Controllers
E2 controllers version 2.84 or greater communicate
with the XR and XEV controllers. The XR and XEV control compressor regulation, defrost, light, and evaporator
fans in refrigeration systems on normal, low, or medium
temperatures, control a wide variety of stepper electronic
expansion valves and anti-sweat heaters (if present), and
measure and regulate the superheat of the refrigerant in the
system.
If the case controller is configured with a Real Time
Clock (RTC), it can be programmed with up to 6 daily
defrosts and an energy saving function. Without the RT C,
the E2 can coordinate defrost cycles and the energy-saving
function.
Several parameters of the Emerson controllers (such as
inputs, outputs, setpoints, and alarms) can be configured
directly in E2 and sent to the appropriate Emerson controller, depending on the controller model.
6.3.3.1XR75CX-Case Display
E2 controllers version 3.02 or greater communicate
with the XR75CX-Case Display controller. The XR75CXCase Display is a microprocessor-based controller, suitable for applications on medium or low temperature ventilated refrigeration units. It has up to four (4) analog inputs:
discharge air temperature, product temperature, defrost
temperature and coil out temperature, four (4) relay outputs, and up to two (2) digital inputs. For more information on the XR75CX-Case Display, refer to the XR75CX-
use either as a stand-alone controller or in zone control
applications using a Retail Solutions E2 BX building control system. The iPro DAC is capable of controlling heat
and cool stages, fans, humidification and dehumidification
devices and economizers using on-board I/O and control
algorithms, as well as monitor and interact with other
building control systems and peripherals (such as smoke
alarms and CO2 sensors).
- iPro DAC
The iPro DAC is a packaged HVAC control board for
installation on T35 DIN rail according to EN50022. The
Energy Meter can be mounted with any orientation over
the entire ambient temperature range, either on a DIN rail
or in a panel. The meter is not sensitive to CT orientation
to reduce installation errors.
6.3.5.2Supported System Types
The Energy Meter Series has a number of different
possible system wiring configurations. To configure the
meter, set the System Type via the User Interface or Modbus register 130 (if so equipped). The System Type tells
the meter which of its current and voltage inputs are valid,
which are to be ignored, and if neutral is connected. Setting the correct System Type prevents unwanted energy
accumulation on unused inputs, selects the formula to calculate the Theoretical Maximum System Power, and determines which phase loss algorithm is to be used. The phase
loss algorithm is configured as a percent of the Line-toLine System Voltage (except when in System Type 10)
and also calculates the expected Line to Neutral voltages
for system types that have Neutral (12 & 40).
For more information about this application, see the
Energy Meter manual (P/N 026-1726).
The Energy Meter provides a solution for measuring
energy data with a single device. Inputs include Control
Power, CT, and 3-phase voltage. The Energy Meter supports multiple output options, including solid state relay
contacts, Modbus (with or without data logging), and
pulse. The LCD screen on the faceplate allows instant output viewing.
The meter is housed in a plastic enclosure suitable for
Figure 6-6 - MRLDS
Modular Refrigerant Leak Detection Sensor (MRLDS)
that continuously monitors for low levels of refrigerants
most commonly used in commercial refrigeration systems
The MRLDS communicates with the E2 controller via
MODBUS. The E2 will just provide an interface while the
MRLDS will provide the leak monitoring functionality
ECT MODBUSThe RS485 Network and Hardware Setup • 6-7
6.3.7Copeland Discus with CoreSense Protection
Figure 6-7
compressors using the MODBUS network on E2 versions
3.01 and above. The E2 monitors and records semi-hermetic compressor information. The Discus application has
extensive logging capabilities that record a compressor’s
Run History, Fault History, and Alarm Status.
400 and above.
- Copeland Discus Compressor
The Discus application can monitor semi-hermetic
The Copeland Discus is supported on E2 RX-300, CX-
6.3.8Light Commercial Thermostat
The Light Commercial Thermostat communicates with
the E2 using the MODBUS network. The thermostat will
enable the E2 to read status information from the device as
well as send operational setpoints to the device. The thermostat is available on E2 versions 3.02 and above.
6.3.8.1Thermostat Inputs
The E2 application will provide support for external
real time inputs to the thermostat. These inputs are:
•Zone Temperature
•Minimum Damper Position
•Outside Air Temperature
•Inside Humidity
If these inputs are connected to valid values, they are
sent to the thermostat to be used in place of any locally
connected sensors of the same type. If local sensors are
present and meant to be used, the associated inputs on the
E2 application should be left disconnected.
6.3.8.2Advisory and Alarms
The Light Commercial Thermostat also supports diagnostic functions. When a diagnostic code is sent to the E2
from the thermostat, the E2 application will identify the
code and generate the corresponding advisories in the
advisory log.
Diagnostic Alarms
Each of these configurable diagnostic alarms in the E2
can be set to Disabled, Failure, Alarm, or Notice with an
accompanying priority setting.
The diagnostic alarms supported are:
Diagnostic AlarmDescriptionsE2 Advisory
Heating Two HoursThermostat did not see a rise in supply temperature when heating was
called for.
Heat ContinuousIn heat or backup heat mode, thermostat opens latching relay contacts if
temperature is over 10°F above setpoint.
Te mperature Sensor Fail If heating or cooling is engaged, and either the indoor temperature sensor
reading or the supply air temperature sensor reading starts moving the
opposite way faster than it was before the heating or cooling was engaged,
the thermostat reports a diagnostic message, and shuts down the operation.
Stuck KeyA stuck key (closed) has been detected on the thermostat.Stuck Key Detected
Unexpected Temperature
Thermostat has detected a failure of the internal space temperature se nsor,
or the O/B wiring is incorrect.
Heating Problem Detected
Heat Shutdown – Temp too high
Incorrect Sensor Wiring
Failed Sensor or Bad Wiring
Diagnostic AlarmDescriptionsE2 Advisory
Cool Eight Hours If cool runs for over 8 hours continuously , the thermostat sets anticipator to
zero until call for cool is satisfied.
Fan Not Detected If the fan is acti vated and if the Fan Dete ct in put is enabl ed, t he ther mosta t
checks its status 15 seconds after the fan is energized, and if the fan is not
on, it disables any active heat or cool calls, and report an alarm.
Frost Protection Activated The thermostat allows a frost protection menu option. When enabled, frost
protection is enabled in all system modes including OFF , when temperature
drops below 42°F (5.5 °C).All other heat / cool calls are disabled, and
indoor heat is activated until the temperature rises above the frost protection threshold.
Table 6-5
nologies Comfort Alert system. On any alert present on
Comfort Alert terminal, the thermostat keeps the information on the fault available over the network so that the E2
can access this information. On some specific alerts, it will
-Diagnostic Alarm Outputs
Comfort Alert Codes
The thermostat supports the Emerson Climate Tech-
discontinue compressor operation if active protection is
enabled.
The Comfort Alert codes are sent separately from the diagnostic codes. Just like the diagnostic codes, the Comfort
Alert codes are entered as advisories in the E2 advisory
log.
Cooling Problem Detected
Proof Fail
Frost Protection
Comfort AlertDescriptionsCauseE2 Advisory
Long Run Time Compressor is running extremely
long run cycles (typically for
more than 18 hours).
System Pressure
Trip
Discharge or pressure out of limits or compressor overloaded.
• Low refrigerant charge.
• Evaporator blower is not running.
• Evaporator coil is frozen.
• Faulty metering device
• Condenser coil is dirty
• Thermostat is malfunctioning
• Compressor Second Stage Cooling Wiring
• High head pressure.
• Condenser coil poor air circulation (dirty,
blocked, damaged)
• Condenser fan is not running
Compressor run time is long
System pressure trip
• Return air duct has substantial leakage.
Short CyclingCompressor is running only
briefly.
Locked RotorLocked rotor.• Run capacitor has failed.
• Thermostat demand signal is intermittent.
• Time delay relay or control board is defective.
• If high pressure switch present, check if there
is a System Pressure Trip problem.
• Low line voltage (contact utility if voltage at
disconnect is low).
• Excessive liquid refrigerant in compressor.
• Compressor bearings have seized.
Compressor short cycling
Locked Rotor Trip
Table 6-6 -Comfort Alert Outputs
ECT MODBUSThe RS485 Network and Hardware Setup • 6-9
Comfort AlertDescriptionsCauseE2 Advisory
Open CircuitCompressor open circuit.• Outdoor unit power disconnect is open.
• Compressor circuit breaker or fuse(s) is
open.
• Compressor contactor has failed open.
• High pressure switch is open and requires
manual reset.
• Open circuit in compressor supply wiring or
connections.
• Unusually long compressor protector reset
time due to extreme ambient temperature.
• Compressor windings are damaged.
Open Start CircuitCompressor current only in run
circuit.
Open Run Circuit Compressor current only in start
circuit.
Welded ContactorCompressor always runs. • Compressor contactor has failed closed
Low VoltageControl circuit < 17VAC. • Control circuit t ransformer is overloaded
Protector TripThermostat demand signal Y is
present, but the compressor is not
running.
• Run capacitor has failed
• Open circuit in compressor start wiring or
connections.
• Compressor start winding is damaged.
• Open circuit in compressor run wiring or
connections.
• Compressor run winding is damaged.
• Thermostat demand signal is not connected
to module.
• Low line voltage (contact utility if voltage at
disconnect is low)
• Compressor protector is open.
• Outdoor unit power disconnect is open.
• Compressor circuit breaker or fuse(s) is
open.
• Broken wire or connector is not making contact.
• High pressure switch open if present in system.
• Compressor contactor has failed open.
Compressor open circuit
Compressor open start circuit
Compressor open run circuit
Welded Contactor
Compressor Low Volt Trip
Protector Trip
Table 6-6
in the E2 as Disabled, Failure, Alarm, or Notice with an
accompanying priority setting. All Comfort Alert codes
will share the same advisory type and priority parameters.
on either high or low temperatures for the Space temperature sensor. Therefore, the E2 application will provide this
functionality.
The Comfort Alert diagnostic alarms are configurable
High/Low Occ/Unocc Space Temperature Alarms
The thermostat does not provide alarming information
Supply Sensor Fail Alarm
The thermostat does not provide alarm information on
a failure of the supply temperature probe (if installed). The
E2 application will provide this functionality. Advisory
type, priority, and delay is provided for the supply sensor
fail advisory.
Conditions for Return to Normal (RTN) on Diag-
nostic Codes
The E2 application will issue an RTN on an active
advisory when the corresponding bit of the diagnostic
code goes to zero. If multiple diagnostic advisories are
active simultaneously , they will all return to normal when
the code reads zero.
6.3.9Refrigerant Leak Detection
System (RLDS)
The RLDS provides for the continuous monitoring of
refrigerant gas levels in up to 16 separate test zones or
channels. The instrument is programmed to monitor a
variety of gases and independent leak (small), spill
(medium), and evacuation (large) levels may be designated for each zone. The instrument also retains a log of
previous readings that can be accessed for analysis.
6.3.9.1Diagnostic Alarms
Diagnostic AlarmDescriptions
Box Temp FaultChassis temperature is out of range
Bench Temp FaultSensor temperature is out of range
Manifold Pressure FaultPressure readings out of range
RS-485 FaultCommunication Error
Loop FaultCurrent loop is open
Config. FaultNo zones are enabled
Zero Filter FaultCharcoal filter needs repl.
Gain Set FaultGain setting is out of range
A2D FaultA/D converter is not working
Zone Flow FaultNo flow during sample cycle
Purge Flow FaultNo flow during purge cycle
Over Range FaultConc. above measurable range
Zero Range FaultSensor voltage outside limits
Clipping FaultSensor output voltage too high
Table 6-7 -Diagnostic Alarm Outputs
6.3.10Copeland Scroll – K5 Refrig-
Figure 6-8
that are synchronized. These will be read first from the
device. The E2 will be master of all other parameters. An
audible alarm and front panel indicators are provided to
signal alarm and fault conditions, and relay contacts are
provided that can be used to trigger external alarm devices
in the event of a system fault, or if a leak (small), spill
(medium), or evacuation (large) level of gas is detected.
The system also may be fitted with an optional two-channel 4-20mA current loop board for connection to remote
monitoring equipment.
an RS485 interface. MODBUS RTU is the communication
protocol standard and can be connected directly to an E2
controller version 3.02 and above. The RLDS is dynamically licensed for 15 devices for RX/BX/CX 300-500 and
1 for RX100 and CX100 (same as IRLDS).
- RLDS
The RLDS has alarm level configuration parameter s
The RLDS features full two-way communications via
eration Compressor
The Copeland Scroll — K5 Refrigeration Compressor
(Lrg Ref Scroll) application can monitor large type compressors using the MODBUS network on E2 versions 3.02
and above. The Copeland Scroll — K5 Refrigeration is
supported on E2 CX-400, CX-100 and above. The E2
monitors and records compressor information, configuration setup, status display, and alarm handling. The Copeland Scroll — K5 Refrigeration will be associated with the
suction group from the Compressor Association screen.
The scroll can be associated by pressing Controller Associations then - Compressor.
Figure 6-9 - Compressor Association Screen
ECT MODBUSThe RS485 Network and Hardware Setup • 6-11
6.3.11XM Series of Case Controllers
The XM series is a set of digital case controllers for
low to medium units. The XM series control refrigeration
solenoids and defrost (electric or hot gas), evaporator fans,
lights and have an auxiliary output. These devices are
available on E2 version 3.02 and above.
6.3.11.1XM670
The XM670 is high level microprocessor based controllers for multiplexed cabinets suitable for applications
on medium or low temperature. It can be inserted in a
LAN of up to 8 different sections which can operate,
depending on the programming, as stand alone controllers
or following the commands coming from the other sections. The XM670 is provided with 6 relay outputs to control the solenoid valve, defrost (which can be either
electrical or hot gas) the evaporator fans, the lights, an
auxiliary output and an alarm output. The devices are also
provided with four probe inputs, one for temperature control, one to control the defrost end temperature of the
evaporator, the third for the display, and the fourth can be
used for application with virtual probe or for inlet/outlet
air temperature measurement. Finally, the XM670 is
equipped with the three digital inputs (free contact) and
are fully configurable.
6.3.11.2XM679
The XM679 is similar to the XM670, but with one
relay output to drive pulsed electronic expansion valves.
The XM679 also contains two probes are dedicated for
superheat measurement and regulation.
6.3.11.3XM678
The XM678 is similar to the XM670, but with one
stepper valve output to drive an electronic expansion
valve. The XM678 also contains two probes that are dedicated for superheat measurement and regulation.
are the recommended wire
for connecting between the
center-tapped transformer
and MultiFlex ESR boards.
24V CT 24V
AC1
GND
AC2
AC1
AC2
24VAC Center-Tapped
Earth ground the
GND (center-tapped)
terminal of each board
GND
6
4. Set the termination jumpers UP (terminated) if at
either end of a daisy chain. Otherwise, set jumpers DOWN
(no termination).
2. Set the network address on the first five rockers of the
dip switch (labeled S1) on the MultiFlex ESR board.
3. Set the network baud rate using rockers 6 and 7.
6. Connect the MultiFlex ESR to a Class 2, 80VA
24VAC power transformer. (One MultiFlex ESR board
per transformer.) For more information on transformer wiring,
refer to the MultiFlex ESR manual ().
center-tapped
P/N 026-1720
5. Wire each stepper valve by connecting the stepper valve
harness to one of the eight connectors alo ng the top
of the board.
VALVE 1 VALVE 2
VALVE 3
VALVE 7
VALVE 4
VALVE 5
VALVE 6
VALVE 8
VALVE 4
VALVE 5 VALVE 6
VALVE 7 VALVE 8
VALVE 3
VALVE 2
Valve 1 connector
enlarged to show
harness wire color
orientation:
DAISY CHAIN CONFIGURATION
SET TERMINATING JUMPERS:
BLU
RBLK
W
Wire color legend silk screened
on each valve connector (8)
(Match wire colors to
silk screen legend
on valve connectors)
ECT MODBUSThe RS485 Network and Hardware Setup • 6-19
LAST XEV22D
DEVICE
131415
17
12
4
5
+
_
16
XEV22D
131415
17
12
4
5
+
_
16
MODBUS TERMINATION
BLOCK 150 OHM
TERMINATE LAST DEVICE ONLY
(P/N 535-2711)
MODBUS SHIELD TO
TERMINAL OF DEVICE
PIN 16
FROM E2 PIB BOARD OR
OTHER RS-485 MODBUS
DEVICE
WIRE BLACK TO +
WIRE WHITE TO
_
REVERSE POLARITY OF
+/- ON RS-485 CABLE
FROM E2 TO DEVICE
WIRE BLACK TO +
WIRE WHITE TO
1. Connect the MODBUS Network to the RS-485 Connector
on the E2 PIB board (Belden 8641 recommended).
2.
3. Position the three termination jumpers to the UP
(terminated) position to provide RS-485 termination at the E2.
4. Do not connect the shield of the MODBUS network to the
E2 PIB center terminal. Instead, use a 100 ohm ½ watt resistor
to connect the MODBUS cable shield to earth ground.
5. At the XEV22 device, wire the MODBUS cable to the RS-485 +/-
terminals and connect the MODBUS shield to the pin 16
terminal.
6. Terminate the end of the MODBUS network at the last device
on the daisy chain with the MODBUS termination block
(P/N 535-2711), or by connecting a 150 ohm resistor between
the MODBUS +/- terminals.
For more information, please refer to the XVE22D user manual
.
Note to wire the RS-485 +/- polarity at the E2 in the
1. Connect the MODBUS Network to the RS-485 Connector on the
E2 PIB board (Belden 8641 recommended).
2.
3. Position the three termination jumpers to the UP (terminated)
position to provide RS-485 termination at the E2.
4. Do not connect the shield of the MODBUS network to the E2 PIB
center terminal. Instead, use a 100 ohm ½ watt resistor to connect
the MODBUS cable shield to earth ground.
5. At each device, wire the MODBUS cable to the RS-485 +/- terminals
and connect the MODBUS shield to the pin termi nal.
6. Terminate the end of the MODBUS network at the last device on
the daisy chain with the MODBUS termination block (P/N 535-2711),
or by connecting a 150 ohm resistor between the MODBUS
+/- terminals.
For more information, please refer to the XR35CX user manual
- and the XR75CX user manual - P/N 026-1203P/N 026-1210.
Note to wire the RS-485 +/- polarity at the E2 in the reverse of
the XR35CX or XR75CX device.
18
NOT TERMINATED TERMINATED
RS-485 I/O or MODBUS Net
HOT KEY
16
17
18
19
20 21 22 23 24
1
2345678
XR35CX, XR75CX TO E2
INSTALLATION GUIDE
0V
+
RS-485 -2A
0V
+
RS-485
637-4890 COM4 ON E2 PIB
BELDEN 8641
100 OHM
½ WATT
TO DEVICE
EARTH GROUND
CONNECTION
RESISTOR
MODBUS TERMINATION
BLOCK (P/N 535-2711)
150 OHM
TERMINATE LAST DEVICE ONLY
TERMINAL XR35CX/XR75CX
MODBUS TERMINAL
BLOCK
FROM OTHER RS-48 5
MODBUS DEVICE
0V
+
RS-485 -2A
0V
+
RS-485
637-4890 COM4 ON E2 PIB
OBSERVE WIRE
COLOR POLARITY
SHIELDED TWISTED
PAIR
RECOMMENDED
BELDEN 8641
REVERSE POLARITY OF
+/- ON RS-485 CABLE
FROM E2 TO DEVICE
100 OHM
½ WATT
WIRE BLACK TO +
WIRE WHITE TO
_
WIRE WHITE TO +
WIRE BLACK TO
_
XR35CX/XR75CX
XR35CX / XR75CX
DEVICE
COM 4
ECT MODBUSThe RS485 Network and Hardware Setup • 6-21
7E2 Ethernet Peer Communications
Communication between E2 controller version 2.10 or
greater may now be implemented through an Ethernet network using TCP/IP protocol. To utilize peer connections
over Ethernet, the following tasks must be performed:
• Upgrade the E2 controller firmware to version 2.10
or greater.
• Install an industry-standard Ethernet switch(es) or
hub(s) in an area or areas nearby the E2 controllers.
• Install Ethernet straight-through cabling at the site
from each E2 to the switch or hub. Installation of
RJ-45 connectors may be necessary to achieve this
goal. The recommended cabling is CAT 5.
7.1Ethernet IP Configurations
If using an open network configuration (see Section
7.4.2, Open Network Layout), contact your IT Network
Administrator for all IP configuration information (IP
Address, Subnet Mask, Primary and Default Gateway settings).
7.2Hardware Specifica-
tions
7.2.1Components
Equipment
Type
Ethernet Five- or
Nine-port Switch
(may require an
additional power
supply)
Ethernet Surge
and Lightning
Protector (recommended)
* Vibration: IEC68-2-6
* RH: 5 to 95%
* UL 508A, CE approved
* Supports 10Base-T crossover
* Supports all IEEE 802.3 proto-
* Supports Auto Crossover
* Screw-terminal power connec-
* Industrial grade
* Surge capacity: 1 kA / line
*Operating temp range: -40°F to
*Max frequency: 155 MHz
*Clamp and rated: 10V and 5V
Room Temperature (0 to 50 C)
P/N 570-0100
Specifications
-40°F to 185°F
cable
col
MDI/MDI-X
tors
185°F
Standard industry-accepted practices for wiring of Ethernet networks are expected. E2 controllers use a star
topology, identical to PC deployment. This includes a
unique “point-to-point” run from a switch or hub to the
controller (see Table 7-1 for hub part numbers for order-
ing). This is done with Category5 (or better) cable. Maximum distance for a run of 10BaseT is 328 feet (100
meters) (11.5 dB loss max).
• The maximum number of controllers allowed on an
IP subnet is 20. All E2 controllers that must communicate with each other must be on the same subnet.
• Recommended Ethernet cabling is CAT 5 (straightthrough cable).
• 328 feet (100 meters) is the maximum distance
allowed between devices before a switch or hub
must be added.
Ethernet IP ConfigurationsE2 Ethernet Peer Communications • 7-1
10-Base-T/100Base-TX Hub
Table 7-1
- Equipment for E2 Ethernet Peer Communications
NOTE: An external power supply may be
needed.
Extended Temperature
(-40 to 65 C) P/N 570-0200
7.3Software Specifications
TCP/IP
E2 controller versions 2.10 and later communicate
between controllers using the TCP/IP protocol. TCP Port
7238 is the default for connections established between the
controllers. All peer communications occur over this port.
7.4Ethernet Network
Layouts
The two types of network options for E2 controllers
using Ethernet communications are:
1.“Closed Network” - E2 devices are not connected
to a store’s LAN. (The only devices on the network are the E2 controllers themselves.) This
network type is used if there is no need to integrate the network into the company’s intranet.
2.“Open Network” - E2 devices are connected to
the store’s LAN. (Devices on the network include
E2s and other Ethernet-TCP/IP devices.) This
network type is used if the network will be connected to the store’s LAN.
NOTE: The gateway E2 is the E2 controller at
a remote site to which UltraSite directly con-
nects. It is through this E2 that UltraSite communicates with the other controllers (defined as the
“non-gateway” E2s and external entities such as
UltraSite, InSite, Site Manager etc.).
7.4.1Closed Network Layout
NOTE: Contact your IT Network Administrator for setup parameters for both closed and
open networks.
The E2 peer Ethernet network facilitates communications between E2 controllers. These include at least the
following:
•Routing of messages between external entities
such as UltraSite, InSite, Site Manager, and
non-gateway E2 controllers.
•Distribution of global data and other network
variables such as system time, controller identification, etc.
•Communication between E2 controller applications such as Remote Login and Remote File
Services.
NOTE: DHCP does not have to be enabled if
you have the IP Address, Subnet Mask, and
Primary Gateway settings. (Contact your IT
Network Administrator for all IP configuration information.) If you do not have the IP configuration settings, and there is a DHCP server on the network, set
DHCP Enabled to Yes and it will retrieve the information from the server and populate those fields. E2 controllers must all have the same Ethernet Subnet in
order to communicate box-to-box.
Figure 7-4 Peer Network Tab - Set Network Type
4.Change Network Type to: Ethernet (ETH) and
press Enter. The Group Name field is now visi-
ble.
NOTE: If unsure of any tab settings, it is recommended that the default settings be used.
5.Once the Ethernet network type is enabled, enter
Echelon is an optional, two-conductor network that interconnects E2s and other associated devices, such as CC-100
case controllers, TD3 temperature displays, and ESR8 evaporator stepper regulator boards. All Echelon devices are wired
together using the daisy-chain method of network structuring. If an Echelon network-enabled E2 is required, it must be
specifically ordered from Retail Solutions as an Echelon-enabled E2, and equipped with an Echelon plug-in card. See
Section 4.3.1, Echelon Card Plug-In (P/N 537-4860) with mounting screw (P/N 101-4201).
8.2Wiring Type
Retail Solutions specifies one type of cable for Echelon Network wiring. This cable type’s properties are listed in
Table 8-1.
Echelon devices are networked together into configu-
rations called segments. A segment is a group of up to 64
Echelon devices that are connected together on an unbroken series of wires.
The recommended way of constructing an Echelon
Network is called daisy-chaining. In the daisy-chain net-
work configuration, devices are arranged by subnets,
which consist of one E2 and all Echelon devices associated with the E2.
First, all devices in a subnet are connected in an unbro-
ken chain without branches or “star configurations” (see
Figure 8-1). Then, if more than one E2 is present on-site,
all chains are connected so that the entire network forms a
large unbroken chain, called a daisy chain
(see Figure 8-2). This allows for all devices in the Echelon Network to be hard wired together for trouble free
communication.
OverviewEchelon Network and Hardware Setup • 8-1
Figure 8-1
E2
E2
E226513125rev
RECOMMENDED
UNBROKEN
CHAIN
E2s
JP7
JP7
E2
Termination
- Echelon Wiring - Subnets
multiple routers can be used to extend the network indefinitely.
More information about routers and how they are used
in a daisy-chain Echelon Network can be found in the
Router and Repeater Installation Guide (P/N 026-1605).
8.4Device Termination
In a daisy-chain configuration, both ends of the net-
work segment must be terminated. Terminate the E2 by
setting jumper JP7 to the UP position, as shown in Figure 8-3. Other devices on the Echelon Network are terminated
either by jumpers on the control board or by connecting a
102-ohm “terminator block” at the end of the network segment (see Section 8.4.1, Using a Termination Block (P/N 535-2715) to Terminate a Daisy Chain). Refer to the
installation guide references at the end of this section for
specific device termination instructions.
All other E2s and Echelon devices that aren’t at the
end of a daisy-chained network segment must be unterminated.
If a router or repeater is being used in a network, termination becomes more complicated, because routers and
repeaters join multiple daisy-chain segments together.
Refer to the Router and Repeater Installation Guide (P/N 026-1605), for specific termination instructions.
Figure 8-2 - Echelon Wiring, pt. 2
8.3.1Maximum Number of Echelon Devices
total Echelon devices (also called "nodes"). If there are 64
or more Echelon devices at your site, an Echelon-compatible router (P/N 572-4200) will be required. A router
placed on the Echelon Network allows you to add another
63-node daisy-chain network. For larger installations,
A daisy-chained segment may contain no more than 63
Figure 8-3 - E2 T e rmination - Daisy Chain
8.4.1Using a Termination Block
(P/N 535-2715) to Terminate a Daisy
Chain
Some Echelon Network devices, notably TD3s, have
no on-board means of terminating. For some other
devices, it is inconvenient to use the jumpers supplied for
termination (the CC-100/CS-100 case controllers, for
example, require the enclosure to be removed to set the
jumper).
To remedy these problems, Retail Solutions supplies
termination blocks that can be wired to the end of an Echelon cable segment. This termination block uses the same
three-pin connector as all other Echelon devices. Wire the
two signal wires to the outside terminals, and connect the
shield to the middle terminal (see Figure 8-4).
a maximum of 63 more nodes.
Repeaters boost signal strength and are only used in
instances where a segment of 63 nodes or less uses more
than 4592 feet of Echelon cable.
Refer to the Router and Repeater Installation Guide (P/N 026-1605), for information about router and repeater
placement.
8.6Installing Echelon
Devices
The E2 control system has several types of peripheral
control boards that communicate using the Echelon Network: the 16AIe analog input board, the 8ROe relay output board, the CC-100/CS-100 series of case control and
case circuit control boards, and the ESR8 board.
NOTE: The recommended termination procedure for all Echelon devices is the termination
block.
Figure 8-4
- Placement and Wiring of the Termination Block
8.5Wire Restrictions
8.6.1Powering Echelon Devices
CAUTION: Do not power Echelon devices
with the same 56VA and 80VA transformers
used to power the I/O Network. Echelon
devices require Class 2 power to operate, which is not
supplied by the I/O board transformers.
All Echelon devices require 24VAC Class 2 power.
Retail Solutions specs several sizes of transformers to
accommodate the full range of Retail Solutions’ Echeloncompatible products. Table 8-3 lists each transformer’s
part number and rating.
Xformer P/NVA RatingInput Voltage
640-003910 VA110 VAC
640-004150 VA110 VAC
640-004250 VA220 V AC
640-005075 VA110 VAC
640-004575 VA220 V AC
Maximum Total Segment Length
The total amount of wire used to connect all E2s and
associated controllers in a single segment (not including
devices on the other side of routers) cannot be longer than
4592 feet (1400 meters). If the total length of cable used is
longer than 4592 feet, a repeater or router will be required.
Routers act as communication gateways that reduce
the amount of network traffic. They are used when networks exceed their 63-node limit. Adding a router allows
you to add another daisy-chain segment of 4592 feet with
Wire RestrictionsEchelon Network and Hardware Setup • 8-3
Table 8-3
devices:
- Class 2 Transformers for Echelon Devices
To select a power transformer for one or more Echelon
1.Determine what the total VA is for the boards
and controllers that will be powered by the
transformer (see Tab le 8-4 ).
Example: Two TD3 boards (4 VA each), and
one E2 (40 VA) board are to be powered by
one transformer. The total VA is:
2.Use a transformer that has a power rating
24VA140VA +48VA=
equal to or higher than the total calculated
VA (see Table 8-3).
Example: Boards totaling 48VA can be connected to
either a 50VA or 75VA transformer.
UnitampsVAVACCenter
tapped?
E21.664024No
ESR82.47524No
TD30.11424No
CC-100/
CS-100
Table 8-4
Refer to the installation guides on the next few pages
for instructions on how to install these boards on the Echelon Network.
Power supplied by Power Module
- Device Power Requirements
8.7LEDs
The Echelon Board LEDs can be used to determine the
status of normal operating parameters for the board.
Echelon BoardStatus
Red (D1) (Reset)ON: The Echelon port is being
held in reset or if momentary it
means the board has gone
through reset
Red (Service)During normal operation this
LED should be off. If the Service Pin is pressed, this LED
will come on.
If the LED is blinking, the node
does not have its Subnet/
Node address set. (E2 should
set this during the first power up sequence where the user
will be asked in which Subnet
to put the controller (E2 will always be Node = 1 on the network).
If the LED is blinking, then try
resetting the E2. If this does
not correct the problem, replace the Echelon board.
ON (no blinking): Replace the
Echelon board. The Neuron
processor has lost its application program.
Table 8-5
- Echelon LED Status
8.8Open Echelon Device
Connectivity
Open-Echelon E2s must be ordered pre-configured
from Retail Solutions. Open-Echelon licenses must be
purchased and enabled on units, and are not transferrable
to other units without assistance from Retail Solutions.
Call 770-425-2724 for technical assistance or your sales
representative. Your sales representative will know which
devices your unit will connect to.
8.8.1Configuring Echelon Devices
Login to the controller and enter the desired number of
Echelon devices to be added in the Connected I/O screen.
From the Main Menu:
Enter the number of Echelon devices you wish to add
on the Connected I/O screen:
Figure 8-6 - Network Summary Screen (RX Unit Shown)
Highlight the LonMark device on the screen you wish
to commission and follow the steps in Section 10.14.2,
Commissioning a Device to commission the device.
Figure 8-5
and above)
PartyTab section of the Connected I/O screen and enter
the number of Echelon devices to be added.
is done at the Controller Setup screen. If still on the Connected I/O screen, hit the back button to go back to the
Network setup menu and select
from the Main Menu:
screen:
- Connected I/O Screen (E2 firmware versions 2.81
Navigate to the Open Echelon field under the Third
Next, commission the Echelon device. Commissioning
(Controller Setup). Or ,
1. Select
2. Select
3. Select
Commission the device on the Network Summary
(System Configuration)
(Network Setup)
(Network Summary)
8.8.1.1Troubleshooting
After commissioning has been completed, check to
make sure the device has been added successfully. From
the Main Menu, select
open the Configured Applications list. If the device you
have commissioned does not appear in this list, the
Description File has failed to upload correctly onto the E2.
An alarm of No Description File will be generated and
can be found in the Alarm Advisory Log. Call Retail Solutions at 770-425-2724 to contact your sales representative
or technical assistance to obtain the Description File.
(Configured Applications) to
Open Echelon Device ConnectivityEchelon Network and Hardware Setup • 8-5
valve to one of the four-pin connectors on the ESR8. (Refer to
the Emerson Flow Controls Valve Field Wiring Guide.) Use
Belden #9418 18AWG or equivalent.
4. Connect the ESR8 to a Class 2, 75 VA 24VAC transformer.
1. Connect the ESR8 to the Echelon Network.
2. Set the termination jumper on the ESR8. For daisy chain
configurations, the device will need to be terminated
only if at either end of a daisy chain.
5. Use the Service Button to commission the ESR8. Refer to
section 8.14.4 in this manual for more information on
commissioning a device. Note that dip switches (S2 & S3) are not
implemented.
To other Einsteins/E2s,
or Echelon devices
Level IV, 22 AWG, Shielded
Max Daisy Chain Length:
Feet: 4592 Meters: 1400
P/N 135-2300 Non-Plenum
P/N 135-2301 Plenum
(1 Pair, 1000 Feet)
(1 Pair, 1000 Feet)
ECHELON CABLE TYPE
Pin#
Color
Phase
1
2
3
4
Red
Blue
Black
White
A1
A2
B1
B2
Emerson Flow Controls
Valve Field Wiring
Guide
5
NOTE: Leave jumper hanging on
one pin when unterminating an
ESR8 so the jumper will be
available for future use. For an
alternative termination method,
refer to section 8.4.1. of this manual.
Emerson Flow Controls
ESR12 or ESR20
Valve #4
Pin 1
(Refer to the Emerson
Flow Controls Valve
Field Wiring Guide)
5
NOTE:
For Sporlan CDS
and SEI valves,
use GREEN wire
where BLUE wire
is connected in
the diagram.
Use cable harness supplied with valve OR
use 18AWG wire (no longer than 75 ft.) OR
14AWG wire (no longer than 200 ft.)
Open Echelon Device ConnectivityEchelon Network and Hardware Setup • 8-7
There are five network boards that may accept inputs:
on the I/O Network, the MultiFlex, 16AI, ARTC, and the
8IO Combination Input/Output Board. Wiring an input to
these boards requires three steps:
1.Connect the sensor’s signal wires to the two terminals of an input point.
2.Set the input type dip switch that corresponds to
the point being connected.
3.If necessary, connect the power lead of the sensor
to one of the 5V or 12V power terminals.
9.1.1.1Wiring
MultiFlex Boards
An input point connector on a MultiFlex, 16AI, and
16AIe board consists of two terminals, as shown in Figure 9-1. One of these terminals, labeled “SIG”, reads the signal from the sensor, while the other, labeled “0v” is where
sensor’s ground and/or cable shield wire is connected.
Figure 9-1
16AI Boards
the first terminal of point 1 and ending with the last terminal of point 16. The even-numbered terminals of a 16AI
are always where the signal voltages are connected. The
sensor grounds and cable shields are connected to the oddnumbered terminals.
8IO and ARTC Boards
labeled “-” or “+”. The ground wire is always connected to
the “-” terminal, and the signal wire is connected to the
- Input Board Points
On a 16AI, terminals are numbered 1-32, starting with
On an 8IO board, the two terminals of every point are
“+” terminal.
On the ARTC board, the input and output points are
predefined and are labeled accordingly.
9.1.1.2Sensor Wiring Types
Specific wiring types are required for each type of sen-
sor used with E2.
All Analog Temperature Sensors and Air Flow Sensors
Temperature and air flow sensors are to be wired with
shielded, 2 conductor, at least 22 GA wire (Belden # 8761
or equivalent).
All Pressure Transducers, Humidity Sensors, and
Refrigeration Transducers
Pressure and refrigeration transducers and humidity
sensors are to be wired with shielded, 3 conductor, at least
22 GA wire (Belden #8771 or equivalent).
Dewpoint and Light Level Sensors
These sensors are to be wired with shielded, 4 conductor at least 22 GA wire (Belden # 8729 or equivalent).
9.1.1.3Input Type Dip Switches
An input type dip switch must be set for each input
point. Input type dip switches are located in the switch
banks labeled S1 and S2 on the MultiFlex, 16AI, and
switch bank S4 on the 8IO.
The input type dip switch tells the input board whether
or not the sensor connected to the point requires a DC supply voltage in order to operate. If the sensor requires DC
voltage, the dip switch should be set to the DOWN position. If the sensor does not require power, or if it uses AC
power, the dip switch should be set to the UP position. Dip
switches for unused points should be set to the UP position.
The dip switch positions for each specific sensor type
is shown in Figure 9-2.
The 16AI, 8IO, and MultiFlex InputsInput and Output Setup • 9-1
9.1.2Power Connection
26501070
2233445566778
8
1
1
ON
ON
S2
S1
INPUTS 9-16
INPUTS 1-8
Set DOWN for
sensors requiring
voltage
Set UP for
sensors not requiring
voltage
If power is needed to operate the sensor, several termi-
nals exist on the 16AI, Multiflex boards, 8IO, that may be
used to supply DC power (see Figure 9-3 for 16AI and
MultiFlex power connections).
Figure 9-2
- Input T ype Dip Switches for MultiFlex 16 and 16AI
Boards
Figure 9-3 - Input Board Power Sources
Input boards may supply 12VDC or 5VDC. To connect
to one of the DC power sources, simply connect the sensor’s power wire to one of the terminals.
+12VDC terminal is 100 milliamps. The maximum current that can be drawn from all three +5VDC terminals
COMBINED is 50 milliamps.
Specific wiring instructions for each type of sensor are
given in Table 9-1 on page 9-3.
1. Connect one lead to the odd
numbered terminal and the
other lead to the even numbered terminal (polarity
insensitive).
1. Connect one lead to the odd numbered
terminal and the other lead to the even
numbered terminal (polarity insensitive).
1. Connect RED power
wire to +5VDC supply on input board.
2. Connect WHITE signal wire to even numbered terminal.
3. Connect BLACK
ground wire to odd
numbered terminal.
4. Connect the bare
SHIELD wire to odd
numbered terminal.
203-5750 Relative Humid-
ity Sensor
Table 9-1 - Sensor Wiring
Down
1. Wire the “P”
sensor terminal
to 12VDC supply on board.
2. Wire the
“GND” sensor
terminal to odd
numbered terminal.
3. Wire the
“OUT” sensor
terminal to even
numbered terminal.
4. Jumper sensor
terminal “N” to
sensor terminal
“GND”.
The 16AI, 8IO, and MultiFlex InputsInput and Output Setup • 9-3
P/NSensor
Input Type
Dip Switch
Wiring
203-5751
Wall-mounted
relative
humidity (RH)
sensor
206-0002 Light Level
Down
Down
3.Use Belden #8771 shielded three-conductor cable or equivalent .
4.Connect the RED, BLACK, and WHITE wires to the screw terminals the sensor’s
connector as shown in Figure 2. Clip the SHIELD wire.
5.Connect the SHIELD and BLACK wires to the 0V terminal of the input board. Connect the WHITE wire to the SIG terminal of the input board.
6.Connect the RED wire to the +12V power terminal on the input board.
7.Locate the input dip switch for the sensor point, and set to the OFF position (LEFT for
MultiFlex, DOWN for 16AI). Refer to the input board’s user manual for locations of
the input dip switches.
wire from “GND”
sensor terminal to odd
numbered board terminal.
2. Wire GREEN signal
wire from “SIGNAL”
sensor terminal to
even numbered board
terminal.
3. Wire RED power wire
from “POWER” sensor terminal to
+12VDC terminal on
board.
1. Connect the WHITE
and GREEN wires to
AC1 and AC2 power
terminals.
2. Connect BLACK
ground wire to odd
numbered board terminal.
3. Connect RED signal
wire to even numbered
board terminal.
Table 9-1
- Sensor Wiring
The 16AI, 8IO, and MultiFlex InputsInput and Output Setup • 9-5
P/NSensor
Input Type
Dip Switch
Wiring
550-2500
550-2550
Table 9-1
KW Transducer
- Sensor Wiring
Down for 420mA, Up for
Pulse
4-20 mA output to input board
1. Wire positive transducer terminal
to positive 24VDC supply.
2. Wire negative transducer termi-
nal to odd numbered input terminal.
3. Wire negative 24VDC supply to
even numbered input terminal.
4. Place 250 resistor across odd
and even numbered input terminals.
Pulse Accumulator output to input board
1. If the input board is an 8IO or a 16AI version
E.02 or greater, connect the two KWh terminals
to the input point (polarity insensitive)
2. If the input board is a 16AI version less than
E.02, connect the KWh terminals to board point
1. Set input switch #1 DOWN, and set input
switch #8 UP.
3. If the input board is a 16AIe, connect the two
KWh terminals to input # 1, 2, 3, or 4 ONLY.
9.1.3Input Setup in E2
At this point in the setup process, you should have all
sensors, transducers, and other input devices wired to
points on MultiFlexes, 16AIs, and all output devices connected to 8ROs, 8DOs, or 4AOs outputs. Once the physical wiring is complete, you will need to tell E2 the types of
sensors or devices that are connected to each I/O point.
This is achieved in the Input and Output Definitions
screens.
9.1.3.1Configuring a Point from the
Input Definitions/Status Screen
T o configure a point, go to the Input Definitions/Status
screen:
1.Press
2.Press
3.Press
The Input Status screen opens:
to open the Main Menu
(System Configuration)
(Input Definitions)
Figure 9-4 - Input Status Screen
Use the up and down arrow keys to move the cursor to
the point you wish to set up, and press (SETUP).
A pop-up menu such as the one shown in Figure 9-5
will prompt you to specify the point as analog or digital.
Press
if the input is analog, press if the input is dig-