Be sure that these instructions are carefully read and understood before any operation is
attempted. Improper use of this device in some applications may result in damage or injury. The
user is urged to keep this book filed in a convenient location for future reference.
These instructions may not cover all details or variations in equipment or cover every possible
situation to be met in connection with installation, operation or maintenance. Should problems arise
that are not covered sufficiently in the text, the purchaser is advised to contact Emerson Process
Management, Remote Automation Solutions division (RAS)for further information.
IMPORTANT! READ INSTRUCTIONS BEFORE STARTING!
EQUIPMENT APPLICATION WARNING
The customer should note that a failure of this instrument or system, for whatever reason, may
leave an operating process without protection. Depending upon the application, this could result in
possible damage to property or injury to persons. It is suggested that the purchaser review the
need for additional backup equipment or provide alternate means of protection such as alarm
devices, output limiting, fail-safe valves, relief valves, emergency shutoffs, emergency switches,
etc. If additional information is required, the purchaser is advised to contact RAS.
RETURNED EQUIPMENT WARNING
When returning any equipment to RAS for repairs or evaluation, please note the following: The
party sending such materials is responsible to ensure that the materials returned to RAS are clean
to safe levels, as such levels are defined and/or determined by applicable federal, state and/or
local law regulations or codes. Such party agrees to indemnify RASand save RASharmless from
any liability or damage which RAS may incur or suffer due to such party's failure to so act.
ELECTRICAL GROUNDING
Metal enclosures and exposed metal parts of electrical instruments must be gr ounded in
accordance with OSHA rules and regulations pertaining to "Design Safety Standards for Electrical
Systems," 29 CFR, Part 1910, Subpart S, dated: April 16, 1981 (OSHA rulings are in agreement
with the National Electrical Code).
The grounding requirement is also applicable to mechanical or pneumatic instruments that
include electrically operated devices such as lights, switches, relays, alarms, or chart drives.
EQUIPMENT DAMAGE FROM ELECTROSTATIC DISCHARGE VOLTAGE
This product contains sensitive electronic components that can be damaged by exposure to an
electrostatic discharge (ESD) voltage. Depending on the magnitude and duration of the ESD, this
can result in erratic operation or complete failure of the equipment. Read supplemental document
S14006 for proper care and handling of ESD-sensitive components.
Remote Automation Solutions
A Division of Emerson Process Management
1100 Buckingham Street, Watertown, CT 06795
Telephone (860) 945-2200
Emerson Process Management
Training
GET THE MOST FROM YOUR EMERSON
INSTRUMENT OR SYSTEM
Avoid Delays and problems in getting your system on-line
Minimize installation, start-up and maintenance costs.
Make the most effective use of our hardware and software.
Know your system.
As you know, a well-trained staff is essential to your operation. Emerson offers a full
schedule of classes conducted by full-time, professional instructors. Classes are offered
throughout the year at various locations. By participating in our training, your personnel
can learn how to install, calibrate, configure, program and maintain your Emerson products
and realize the full potential of your system.
For information or to enroll in any class, go to http://www.EmersonProcess.com/Remote
click on “Educational Services” or contact our training department in Watertown at (860)
945-2200.
This manual focuses on the hardware aspects of the ControlWave
Express Remote Terminal Unit (RTU). For information about the
software used with the ControlWave Express, refer to Getting Started
with ControlWave Designer (D5085), the ControlWave Designer
Programmer’s Handbook (D5125), and the online help in ControlWave
Designer.
This chapter provides an overview of the ControlWave Express and its
components and details the structure of this manual
In This Chapter
1.1 ........................................................................1-2 Scope of the Manual
ControlWave Express is designed to perform as the ideal platform for
remote site automation, measurement, and data management in process
control and manufacturing. Typical process inputs used by the
ControlWave Express are pressure, flow, level, temperature and
frequency input [typically used for positive displacement (PD)], turbine,
or ultrasonic meters. In some cases, inputs may also be derived from
external multivariable transmitters using either the BSAP or Modbus
protocols. When mounted in a suitable enclosure, you can operate the
ControlWave Express in a protected outdoor environment.
ControlWave Express has the following key features:
Exceptional performance and low power consumption through use
of the ARM microprocessor
Very low power consumption to minimize costs of solar panel /
battery power systems
Three CPU / System Controller board configurations (see Table 1-
1.)
Three process I/O board configurations (see Table 1-2.)
Small size (enabling panel- or DIN-rail mounting installations)
Two RS-232 and one RS-232/RS-485 asynchronous serial
communication ports
Optional 10/100 MB Ethernet port
Revised Mar-2011 Introduction 1-1
Optional Display/Keypad
Wide operating temperature range: (–40 to +70C) (–40 to 158F)
Battery backup for Static RAM (SRAM) and real-time clock.
Nonincendive Class I, Division 2 (Groups A, B, C and D)
Hazardous Location approvals when installed in a suitable enclosure
- see Appendix A.
Cost-effective for small RTU/process controller applications.
1.1 Scope of the Manual
This manual contains the following chapters:
Chapter 1
Introduction
Chapter 2
Installation
Chapter 3
I/O Configuration
Chapter 4
Operation
Chapter 5 Service and Troubleshooting
1.2 Physical Description
The ControlWave Express consists of a CPU/System Controller Board
(SCB) with a piggy-back mounted LED board, an optional process I/O
board, and a two-piece enclosure. The enclosure consists of a card-edge
cover and a mounting chassis.
You can loosen the two thumb screws to remove the card edge cover
and access the instrument field wiring.
Provides an overview of the hardware and
general specifications for the ControlWave
Express.
Provides information on mounting the
ControlWave Express and setting CPU jumpers
and switches.
Provides general information on wiring the
process I/O points.
Provides information on day-to-day operation of
the ControlWave Express.
Provides information on service and troubleshooting procedures.
You can purchase an optional LCD display to provide runtime status
information.
The CPU (central processing unit) and System Controller Board (SCB)
contains the ControlWave Express CPU, I/O monitor/control, memory,
and communication functions.
The CPU/System Controller board includes:
Sharp LH7A400 System-on-Chip ARM microprocessor with 32-bit
ARM9TDMI Reduced Instruction Set Computer (RISC) core, with a
system clock speed of either 14 MHz or 33 MHz.
two RS-232 communication ports
one communication port configurable by jumpers as either RS-232
or RS-485
optional 10/100baseT Ethernet port (See Table 1-1)
transmit (TX) and receive (RX) LEDs for each communication port
2 MB of battery backed Static RAM (SRAM),
512KB boot/downloader FLASH,
8MB simultaneous read/write FLASH memory
Board Variations
Table 1-1. CPU/System Controller board Variations
CPU Nominal
14MHz
ultra low
power
33MHz
low
power
33MHz +12V or
The CPU/System Controller board has three basic variations:
Input Power
+6Vdc or +12Vdc
+12V or +24Vdc
+24Vdc
Ethernet Port?
No YesYesYes.
No YesYesNo
Yes No No Yes (same as
Solar
Regulator
?
Auxiliary
Power
Output?
RTD Input?
Connects to
100-ohm
platinum bulb.
Uses DIN
43760 curve.
ultra low
power)
Note: Each of the variants shown in Table 1-1 may be ordered with or
without special gas calculation firmware.
CPU Backup Battery
The CPU/System Controller board has a coin cell socket that accepts a
3.0V, 300 mA-hr lithium battery. This 3.0V battery provides backup
power for the real-time clock and the system’s Static RAM (SRAM).
CPU Memory
There are several different types of memory used by the CPU:
Boot/Downloader FLASH
Boot/download code is contained in a single 512 Kbyte FLASH chip.
Boot FLASH also holds the value of soft switches, audit/archive file
configurations, and user account and port information.
The ControlWave Express includes 8 MB of FLASH memory. The
FLASH memory holds the system firmware and the boot project.
Optionally FLASH memory also stores the zipped ControlWave project
(*.zwt), user files, and historical data (audit/archive files).The FLASH
does not support hardware write protection.
System Memory (SRAM)
The ControlWave Express has 2 MB of static random access memory
(SRAM). During power loss periods, SRAM enters data retention mode
(powered by a backup 3.0V lithium battery). Critical system information
that must be retained during power outages or when the system has been
disabled for maintenance is stored here. This includes the last states of
all I/O points, audit/archive historical data (if not stored in FLASH), the
values of any variables marked RETAIN, the values of any variables
assigned to the static memory area, and any pending alarm messages not
yet reported.
1.4 Power Options
1.5 I/O Options
You can power the ControlWave Express by:
a user supplied rechargeable 6/12V lead acid battery (used in
conjunction with a solar panel),
other user-supplied battery systems
bulk (nominal +6Vdc, +12Vdc or +24Vdc) power supply.
If you connect solar panels to rechargeable battery systems to power the
ControlWave Express, there is a secondary power input you can use to
provide power if there is no power from the solar panel/battery system.
ControlWave Express comes with the following standard I/O
2 Pulse Counter Inputs with a 1 second scan rate (can be configured
as discrete inputs (DI))
The 14 MHz CPU and 33 MHz CPU with Ethernet also include a
Resistance Temperature Device (RTD) probe.
In addition, three different versions of the optional process I/O board are
available:
The ControlWave programming environment consists of a set of
integrated software tools which allow you to create, test, implement,
and download complex control strategies for use with the ControlWave
Express. Figure 1-2 graphically presents the programming environment.
Figure 1-2. ControlWave Programming Environment
The tools which make up the programming environment include:
ControlWave Designer is your load-building package. It offers
1-6 Introduction Revised Mar-2011
several different methods for you to create control strategy programs
that run in your ControlWave Express. You can use pre-made
function blocks, ladder logic, or structured languages. The resulting
process control strategy programs (called projects) are fully
compatible with IEC 61131 standards. For information on
ControlWave Designer, see the Getting Started with ControlWave
Designer manual (document D5085), and the ControlWave
Designer Programmer’s Handbook (document D5125).
The I/O Configurator, accessible via a menu item in ControlWave
Designer, allows you to define process I/O in the ControlWave and
configure the individual mapping of I/O points for discrete and
analog inputs and outputs. For information on the I/O Configurator
see the ControlWave Designer Programmer’s Handbook (document
D5125).
The ACCOL3 Firmware Library, available within ControlWave
Designer, includes a series of ControlWave-specific function blocks.
These pre-programmed function blocks let you accomplish various
tasks common to most user applications including alarming,
historical data storage, as well as process control algorithms such as
PID control. For information on individual function blocks, see the
online help within ControlWave Designer.
OpenBSI Utilities provides a set of programs that allow you to
configure a communication network of ControlWave controllers,
download files to the controllers, and collect data from the network.
OpenBSI also exports data from the network to a SCADA/host
package, such as OpenEnterprise. For information on configuring
OpenBSI communications, see the OpenBSI Utilities Manual
(document D5081).
OpenBSIHarvester is a special add-on package that allows
scheduled data collections from large networks. For information on
the Harvester, see the OpenBSI Harvester Manual (document
D5120).
A series of web page controls are available for retrieval of real-time
data values and communication statistics. These controls utilize
ActiveX technology and are called through a set of fixed web pages,
compatible with Microsoft® Internet Explorer. Alternatively,
developers can place the controls in third-party ActiveX compatible
containers such as Visual BASIC or Microsoft® Excel. For
information on the ActiveX controls, see the Web_BSI Manual
(document D5087).
User-defined web pages - If desired, you can use the ActiveX web
controls in your own user-defined web pages you can store at the PC
to provide a customized human-machine interface (HMI).
Revised Mar-2011 Introduction 1-7
Flash Configuration Utility – Parameters such as the BSAP local
address, IP address, etc. are set using the Flash Configuration
Utility, accessible via OpenBSI LocalView, NetView, or TechView.
For information on the Flash Configuration Utility, see Chapter 5 of
the OpenBSI Utilities Manual (document D5081).
This chapter discusses the physical configuration of the ControlWave
Express, considerations for installation, and instructions for setting
switches and jumpers.
In This Chapter
2.1 ..........................................................................2-1 Site Considerations
.............................2-3Class I, Div 2 Installation Considerations
When choosing an installation site, check all clearances. Ensure that the
ControlWave Express is accessible for wiring and service. If present,
make sure the optional display/keypad is accessible and visible.
The ControlWave Express comes in an enclosure/chassis that you can
mount to a panel or a DIN-rail and is designed to operate in a protected
Class I Division 2, Groups A, B, C & D environment with a
nonincendive rating (see Appendix A).
The enclosure consists of two pieces, the removable card edge cover
and the main mounting chassis. You can loosen the two thumb screws to
remove the card edge cover and connect instrument wiring.
See Figure 2-2 for a dimensional drawing of the NEMA enclosure.
To ensure safe use of this product, please review and follow the
Caution
instructions in the following supplemental documentation:
Supplement Guide - ControlWave Site Considerations for
ESDS Manual – Care and Handling of PC Boards and ESD
Equipment Installation, Grounding, and Wiring (S1400CW)
available on our website for detailed
technical specifications for temperature, humidity, and vibration for
the ControlWave Express.
Ensure that the ambient temperature and humidity at the installation
site remains within these specifications. Operation beyond the
specified ranges could cause output errors and erratic performance.
Prolonged operation under extreme conditions could also result in
failure of the unit.
Check the mounted enclosure, panel, or equipment rack for
mechanical vibrations. Make sure that the ControlWave Express is
not exposed to a level of vibration that exceeds that provided in the
technical specifications.
Placement of the ControlWave Express in Class 1, Division 2 (Group A,
B, C, and D) hazardous locations requires that you install it in a NEMA 1
or better enclosure.
2.1.1 Class I, Div 2 Installation Considerations
Underwriters Laboratories (UL) lists the ControlWave Express as non-
incendive and suitable only for use in Class I, Division 2, Group A, B,
C, and D hazardous locations and non-hazardous locations. Read this
chapter and Appendix A carefully before you install a ControlWave
Express in a hazardous location.
Perform all power and I/O wiring in accordance with Class I, Division 2
wiring methods as defined in Article 501-4 (b) of the National Electrical Code, NFPA 70 (for installations within the United States) or as
specified in Section 18-152 of the Canadian Electrical Code (for
installation in Canada).
WARNING
EXPLOSION HAZARD
Substitution of components may impair suitability for use in Class I,
Division 2 Group A, B, C and D environments.
When the ControlWave Express is situated in a hazardous location,
turn off power before servicing or replacing the unit and before
installing or removing I/O wiring.
Do not disconnect equipment unless the power is switched off or the
area is known to be non-hazardous.
2.2 Installation Overview
Installing a ControlWave Express involves several general steps:
1. Unpacking, assembling, and configuring the hardware. This
includes:
a) Mounting the chassis on a panel or DIN-rail in an appropriate
b) Enabling the backup battery by setting jumper W3 on the
b) Setting switches and jumpers on the CPU/System Controller
enclosure. (See Section 2.2.2)
CPU/System Controller board to position 1 to 2. (See Section
2.3.2)
board (see Section 2.3.1 and Section 2.3.2) and on the Process
I/O board (see Section 3.2.1 and Section 3.2.2) and placing both
boards (as a single assem
bly) into the chassis.
Revised Mar-2011 Installation 2-3
d) Connecting communication cables. (See Sections 2.3.5, 2.3.6,
f) Installing a ground wire between the enclosure and a known
good Earth ground. (See Section 2.2.3)
g) Connecting the RTD probe (if required). (See Section 3.3.7)
h) Wiring power to the unit. (See Section 2.3.4)
i) Turning on power. (See Section 4.1)
4. Creating an application-specific control strategy (ControlWave
project).
5. Creating application-specific web pages (optional).
6. Adding the ControlWave Express to an OpenBSI network.
7. Downloading the application-specific ControlWave project into the
ControlWave Express.
Note: Steps 2 through 7 require that you install and use ControlWave
Designer software on your PC. This manual focuses on hardware
installation and preparation. Software installation and
configuration is beyond the scope of this manual. Refer to the
Getting Started with ControlWave Designer Manual (D5085)
and the ControlWave Designer Programmer’s Handbook
(D5125) for material related to software installation and use.
2.2.1 Unpacking Components
Packaging
Depending upon how you order it, the ControlWave Express may
arrive pre-assembled, or in a number of separate boxes. If you did not
order it pre-assembled, you must identify, unpack, and assemble the
components. These include:
ControlWave Express enclosure / mounting chassis
CPU/System Controller board and Process I/O board (one assembly)
The ControlWave Express enclosure does not include a ground lug.
Instead, you must use one or more of the mounting screws to secure a
ground cable to the unit. Once you have installed the unit, run a ground
wire (#4 AWG max wire size) between one of the mounting screws for
the enclosure to a known good earth ground. For more information on
grounding see the ControlWave Grounding Supplement (S1400CW):
Additional grounding guidelines include:
Use stranded copper wire (#4 AWG) to earth ground, and keep the
length as short as possible.
Clamp or braze the ground wire to the ground bed conductor
(typically a stranded copper AWG 0000 cable installed vertically or
horizontally).
Using a high-wattage soldering iron, crimp and solder the wire end
you will fasten to the ControlWave Express to a terminal ring/lug.
Run the ground wire so that any routing bend in the cable has a
minimum radius of 12-inches below ground and 8-inches above
ground.
2.3.1 Setting DIP Switches on the CPU/System Controller Board
Before you install the CPU/System Controller board, you must
determine the settings for three banks of DIP switches. Refer to Figure
2-3 for the location of the DIP switch banks. Refer to Tables 2-1, 2-2,
and 2-3 for an explanation of the DIP switch positions.
Note: Examine each bank of DIP switches carefully to note the switch
direction for ON or OFF.
Table 2-1. CPU/System Controller Board Switch SW1
SW1 Setting Function Mode
1 & 2
3
4
Recovery
Mode
Force
Recovery
Mode
LED status
Recovery Mode = Both SW1-1 and SW1-2 ON or both
SW1-1 and SW1-2 OFF
Local Mode = SW1-1 OFF and SW1-2 ON (Factory
Default)
Enables recovery mode. Values are:
ON (enables recovery mode)
OFF (disables recovery mode). – This is the factory
default.
ON (Enable all LEDs)
OFF (Disable all LEDs except watchdog WD)
Table 2-2. CPU/System Controller Board Switch SW2
SW2 Setting Function Mode
1
2
3
Watchdog
Enable
Lock/Unlock
Soft Switches
Use/Ignore Soft Switches
Controls whether the system enters a watchdog state
when a crash or system hangup occurs and automatically
restarts. Values are:
ON (Enables watchdog circuit; factory default)
OFF (Disables watchdog circuit and prevents automatic
restart)
Controls the ability to modify soft switches, other
configurations, and flash files. Values are:
ON (Unlocks soft switches and flash files; factory
default).
OFF (Locks soft switches, configurations, and flash files)
Controls the use of soft switches. Values are: ON (Enable user-defined soft switches configured in flash memory; factory default) OFF (Disable soft switch configuration and use factory defaults)
Note: Setting both switch 3 and switch 8 to OFF (closed)
sets all serial communication ports to 9600 bps operation. All serial communication ports must be set at 9600 bps before WINDIAG can perform communication tests.
Core Updump Causes the ControlWave Express to perform a core
updump, provided you have set the SW1 switches to allow
recovery mode. Values are:
ON (Disables core updump; factory default)
OFF Core updump
SRAM Control Manages SRAM contents following a low power situation
or a power outage. Values are:
ON (Retain values in SRAM during restarts; factory
default)
OFF (Reinitialize SRAM) – Data in SRAM lost during
power outage or re-start.
System
Firmware
N/A Not currently used.
Enable
WINDIAG
Allows a remote download of system firmware (on units
equipped with boot PROM version 4.7 or higher and
system PROM version 4.7 and higher). Values are:
ON (Enable remote download of system firmware; factory
default)
OFF (Disable remote download of system firmware)
Suspends normal operation and allows diagnostic
routines. Values are:
ON (Permits normal system operation, including the boot
project, and disables the WINDIAG diagnostics from
running; factory default)
OFF (Allow WINDIAG to run test; disable boot project and
normal system operation.)
Note: Setting both switch 8 and switch 3 to OFF (closed)
sets all communication ports to 9600 bps operation.
All serial communication ports must be set at 9600
bps before WINDIAG can perform communication
tests.
Note: Table 2-3 describes switch settings for RS-485 port operation.
You may want to review Section 2.3.6 on RS-485 configuration
before you set these switches.
Table 2-3. RS-485 Configuration Switch SW3
Switch
Setting
1
2
3
4
Revised Mar-2011 Installation 2-9
Function Mode
TX+ to RX+ Loopback / 2wire
TX- to RX- Loopback / 2wire
100 Ohm RX+ Termination
100 Ohm RX- Termination
ON (2-wire operation or loopback enabled)
OFF (4-wire operation and loopback
disabled)
ON (2-wire operation or loopback enabled)
OFF (4-wire operation and loopback
o 1-to-2 Installed = COM3 is RS-232
o 2-to-3 Installed = COM3 is RS-485
W14: COM3 configuration selection:
o 1-to-2 Installed = COM3 is RS-232
o 2-to-3 Installed = COM3 is RS-485
W15: COM3 configuration selection:
o 1-to-2 Installed = COM3 is RS-232
o 2-to-3 Installed = COM3 is RS-485
W16: COM3 configuration selection:
o 1-to-2 Installed = COM3 is RS-232
o 2-to-3 Installed = COM3 is RS-485
W17: Input power selection (controls solar power shunt regulation.
Not applicable for +24Vdc CPUs:
o 1-to-2 Installed = 6V power
o 2-to-3 Installed = 12V power
W18: COM1 connector selection:
o 1-to-2 Installed = connector J4 (D connector) is active
o 2-to-3 Installed = alternate connector J11 is active
2.3.3 General Wiring Guidelines
ControlWave Express terminal blocks use compression-type
terminals that accommodate up to #16 AWG wire.
When making a connection, insert the bare end of the wire (approx
¼” max) into the clamp adjacent to the screw and secure the screw.
To prevent shorts, ensure that no bare wire is exposed. If using
standard wire, tin the bare end with solder to prevent flattening and
improve conductivity.
Allow some slack in the wire while making terminal connections.
Slack makes the wires more manageable and helps minimize
mechanical strain on the terminal blocks.
2.3.4 Wiring Power to the CPU/System Controller Board
Caution
At this time you can connect power wiring. However; for safety reasons
and to prevent accidental damage to your bulk DC power supply, do not
connect the pluggable terminal block connectors TB1 and TB2 to the
CPU/System Controller board until after you install, wire, ground, and
configure the entire unit.
Follow the instructions in Section 2.3.3 General Wiring Guidelines wh
wiring connections.
Depending upon the CPU type, the ControlWave Express accepts either
a 6Vdc, 12Vdc or 24Vdc bulk power input. You can estimate the
maximum current required for your ControlWave Express using the
following equation:
Bulk +6/12/24 Vdc Supply Current = CPU/System Controller Board (with
Refer to Table 2-4 for ControlWave Express power requirements based
on the CPU type.
Table 2-4. ControlWave Express Bulk Power Requirements
CPU Type and Components
14 MHz Ultra Low Power CPU with LCD
display/keypad
33 MHz Low Power CPUwithout Ethernet, but with LCD display/keypad
Note: If your ControlWave Express includes an external modem or
radio, contact the radio/modem manufacturer for power
consumption specifications.
If your ControlWave Express is configured to use a solar panel to charge
a 7AH (6V or 12V) battery for power, NEVER CONNECT THE SOLAR
PANEL/CHARGER WITHOUT ALSO CONNECTING THE BATTERY.
Connections without the battery present can damage power supply
components.
Unplug removable connector TB1 from the CPU/System Controller
board. We recommend you do not plug the connector back into the CPU
until the unit is already installed in the housing.
You can power the ControlWave Express using a bulk DC power supply
using connections TB1-3 and TB1-4.
Nominal input source operating ranges for the DC power supply are:
+6Vdc (+5.4Vdc to +16.0Vdc nominal operating range)
+12Vdc (+11.4Vdc to +16.0Vdc nominal operating range)
+24Vdc (+21.8Vdc to +28.0Vdc nominal operating range)
Not all ControlWave Express CPUs support all DC power supplies.
Supported options are:
14MHz Ultra Low Power CPU: Supports +6Vdc or +12Vdc
nominal power supply.
33MHz Low Power CPU: Supports +12Vdc nominal or +24Vdc
nominal power supply.
33MHz CPU with Ethernet: Supports +12Vdc nominal or +24Vdc
nominal power supply.
Alternatively, you can power low powered versions of the ControlWave
Express using a solar panel connected to a user-supplied rechargeable
7AH (6V/12V) lead acid battery at connections TB1-1 and TB1-2.
TB1 connections are:
TB1-1: (Solar Power IN+): Power from a 1W – 6V, 5W – 6V or
5W – 12V solar panel (internally wired to recharge a user-supplied
battery). Not available on units with Ethernet.
TB1-2 = Ground (GND)
TB1-3 = Primary Power: Power from a user-supplied nominal
+6Vdc , +12Vdc or +24Vdc power supply, depending upon the
CPU type.
TB1-4 = Ground (GND)
TB1-5 = Auxiliary Power Out+: for an external radio or modem (if
supported). Not available on units with Ethernet.
TB1-6 = Ground (GND) for Aux power out.
Figure 2-4 shows the typical wiring at the TB1 block.
Figure 2-4. CPU/System Controller Board (TB1 & TB2) Power Wiring
Revised Mar-2011 Installation 2-13
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