IOM1711 and IOM2711 Input/Output Module Installation
Instructions
MS-IOM1711-0U, MS-IOM2711-0U
Part No. 24-10144-246, Rev. A
Software Release 8.1
Issued March 2018
Application
The IOM1711 and IOM2711 input/output expansion
modules are part of the Metasys® system Field
Equipment Controller family. Input/Output Module (IOM)
expansion modules expand the number of points
connected to a Network Automation Engine (NAE), Field
Equipment Controller (FEC), VAV Modular Assembly
(VMA), or Advanced Application Field Equipment
Controller (FAC) to monitor and control a wide variety of
HVAC equipment.
IOM field controllers operate on an RS-485 BACnet®
MS/TP Bus and integrate into Johnson Controls® and
third-party BACnet systems.
Important: The MS-IOM171x-0U and MS-IOM271x-0U
models are used in Metasys Release 8.1
smoke control applications and are UL 864
UUKL/UUKLC 10th Edition Smoke Control
Listed. You must refer to the Metasys®
System UL 864 10th Edition
UUKL/ORD-C100-13 UUKLC Smoke
Control System Technical Bulletin
(LIT-12012487) for detailed requirements
and procedures for installing,
commissioning, and operating UL 864
UUKL/UUKLC Listed Metasys system
devices. The UL 864 UUKL/UUKLC listing
for Smoke Control Equipment is voided if
(1) you do not use the required software
tools at the required versions; or (2) you do
not meet the requirements or do not follow
the procedures as documented in the
Metasys® System UL 864 10th Edition
UUKL/ORD-C100-13 UUKLC Smoke
Control System Technical Bulletin
(LIT-12012487).
Note: With CCT Release 10.3 and Release Module (RM)
10.2, a new capability allows VMAs, FECs, and
FACs to communicate by using either the BACnet
or the N2 field bus networking protocol. The
operation of the IOM Input/Output Module is not
affected by the selection of the BACnet or the N2
protocol in the host controller when the IOM is
connected to the host controller using the SA bus.
Only the BACnet protocol is supported when the
IOM is connected directly to the trunk using the
FC bus.
North American Emissions Compliance
Canada
This Class (A) digital apparatus meets all the
requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la Classe (A) respecte toutes
les exigences du Règlement sur le matériel brouilleur
du Canada.
United States
This equipment has been tested and found to comply
with the limits for a Class A digital device pursuant to
Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful
interference when this equipment is operated in a
commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction
manual, may cause harmful interference to radio
communications. Operation of this equipment in a
residential area may cause harmful interference, in which
case the users will be required to correct the interference
at their own expense.
1IOM1711 and IOM2711 Input/Output Module Installation Instructions
Installation
Observe these guidelines when installing a field controller:
• Transport the controller in the original container to
minimize vibration and shock damage.
• Verify that all parts shipped with the controller.
• Do not drop the controller or subject it to physical
shock.
Parts Included
• one controller with removable terminal blocks (Power
and SA/FC bus are removable)
• one installation instructions sheet
Materials and Special Tools Needed
• three fasteners appropriate for the mounting surface
(M4 screws or #8 screws)
• one 20 cm (8 in.) or longer piece of 35 mm DIN rail
and appropriate hardware for DIN rail mount (only)
• small straight-blade screwdriver for securing wires in
the terminal blocks
Observe these additional guidelines when mounting a
field controller in a panel or enclosure:
• Mount the controller so that the enclosure walls do
not obstruct cover removal or ventilation through the
controller.
• Mount the controller so that the power transformer
and other devices do not radiate excessive heat to
the controller.
• Do not install the controller in an airtight enclosure.
Figure 1: Controller Mounting Positions
Mounting
Observe these guidelines when mounting a field
controller:
• Ensure the mounting surface can support the
controller, DIN rail, and any user-supplied enclosure.
• Mount the controller horizontally on 35 mm DIN rail
whenever possible.
• Mount the controller in the proper mounting position
(see Figure 1).
• Mount the controller on a hard, even surface
whenever possible in wall-mount applications.
• Use shims or washers to mount the controller securely
and evenly on the mounting surface.
• Mount the controller in an area free of corrosive
vapors and observe the Ambient Conditions
requirements in Technical Specifications.
• Provide for sufficient space around the controller for
cable and wire connections for easy cover removal
and good ventilation through the controller (50 mm
[2 in.] minimum on the top, bottom, and front of the
controller).
• Do not mount the controller on surfaces prone to
vibration, such as duct work.
• Do not mount the controller in areas where
electromagnetic emissions from other devices or
wiring can interfere with controller communication.
DIN Rail Mount Applications
Mounting the controller horizontal on 35 mm DIN rail is
the preferred mounting method.
To mount a field controller on 35 mm DIN rail:
1. Securely mount a 20 cm (8 in.) or longer section of
35 mm DIN rail horizontal and centered in the desired
space so that the controller mounts in the horizontal
position shown in Figure 1.
2. Pull the bottom mounting clip outward from the
controller to the extended position as shown in Figure
2.
3. Hang the controller on the DIN rail by the hooks at
the top of the (DIN rail) channel on the back of the
controller (Figure 2), and position the controller snugly
against the DIN rail.
4. Push the bottom mounting clip inward (up) to secure
the controller on the DIN rail.
To remove the controller from the DIN rail, pull the
bottom mounting clip out to the extended position and
carefully lift the controller off the DIN rail.
Wall Mount Applications
To mount a field controller directly on a wall or other flat
vertical surface:
2IOM1711 and IOM2711 Input/Output Module Installation Instructions
1. Pull the bottom mounting clip outward and ensure it
is locked in the extended position as shown in Figure
2.
2. Position the controller in a proper mounting position
shown in and mark the mounting hole locations on
the wall or surface using the dimensions shown in
Figure 2. Or, hold the controller up to the wall or
surface in a proper mounting position and mark the
hole locations through the mounting clips.
3. Drill holes in the wall or surface at the marked
locations, and insert appropriate wall anchors in the
holes (if necessary).
4. Hold the controller in place, and insert the screws
through the mounting clips and into the holes (or wall
anchors). Carefully tighten all of the screws.
Important: Do not overtighten the mounting screws.
Overtightening the screws may damage
the mounting clips.
Figure 2: Back of IOM17 or IOM27 Controller Showing
Extended Mounting Clips, DIN Rail Channel, and
Mounting Dimensions, mm (in.)
3IOM1711 and IOM2711 Input/Output Module Installation Instructions
Figure 3: IOM1711 and IOM2711 Physical Features
Table 1: IOM17 and IOM27 Physical Features
Physical Feature: Description and ReferencesCallout
1
3
4
5
6
7
8
9
10
11
12
Device Address DIP Switch Block. See Setting the Device Addresses for more information.
Mounting Clip2
24 VAC, Class 2 Supply Power Terminal Block. See Table 5 for more information.
Cover Lift Tab. See Removing the Controller Cover for more information.
Sensor Actuator (SA) Bus / Field Controller (FC) Bus Terminal Block. See Table 5 for more information.
Binary Inputs (BIs) Terminal Block (IOM17 only). See Table 3 for more information.
End-of-Line (EOL) Switch. See Setting the End-of-Line (EOL) Switch for more information.
Note: The EOL Switch is located under the controller cover. You must remove the cover to change the EOL
switch position.
Sensor Actuator (SA) Bus or Field Controller (FC) Bus Port (RJ-12 6-pin Modular Jack). See Table 5 for more
information.
Light-Emitting Diode (LED) Status Indicators. See Table 7 for more information.
Universal Outputs (UO) Terminal Blocks (IOM27 only). See Table 3 for more information.
Universal Inputs (UI) Terminal Blocks (IOM27 only). See Table 3 for more information.
Relay Output Terminal Blocks (IOM27 only). See Table 3 for more information.
4IOM1711 and IOM2711 Input/Output Module Installation Instructions
Wiring
Risk of Electric Shock: Disconnect or isolate all power
supplies before making electrical connections. More than
one disconnection or isolation may be required to
completely de-energize equipment. Contact with
components carrying hazardous voltage can cause
electric shock and may result in severe personal injury
or death.
Avertissement: Risque de décharge électrique:
Débrancher ou isoler toute alimentation avant de réaliser
un branchement électrique. Plusieurs isolations et
débranchements sont peut-être nécessaires pour
-couper entièrement l'alimentation de l'équipement. Tout
contact avec des composants conducteurs de tensions
dangereuses risque d'entraîner une décharge électrique
et de provoquer des blessures graves, voire mortelles.
Risk of Property Damage: Do not apply power to the
system before checking all wiring connections. Short
circuited or improperly connected wires may result in
permanent damage to the equipment.
Terminal Blocks and Bus Ports
See Figure 3 for terminal block and bus port locations on
the controller. Observe the following guidelines when
wiring a controller.
Input and Output Terminal Blocks
Most of the input terminal blocks are mounted on the
bottom of the controller and the output terminal blocks
are mounted on the top of the controller. See Table 3 for
more information about I/O terminal functions,
requirements, and ratings.
SA/FC Bus Terminal Block
An IOM can be connected to a Sensor/Actuator (SA) bus
or a Field Controller (FC) bus, but not to both buses
simultaneously. The SA/FC bus terminal block is a
removable, 4-terminal plug that fits into a board-mounted
jack.
When connecting the IOM to an FC bus, wire the bus
terminal block plugs on the controller and the other
controllers in a daisy-chain configuration using 3-wire
twisted, shielded cable as shown in the FC Bus Terminal
Block wiring figure below. See Table 5 for more
information.
Figure 4: FC Bus Terminal Block Wiring
Mise En Garde: Risque de dégâts matériels: Ne pas
mettre le système sous tension avant d'avoir vérifié tous
les raccords de câblage. Des fils formant un court-circuit
ou connectés de façon incorrecte risquent
d'endommager irrémédiablement l'équipement.
Important: Do not exceed the controller electrical
ratings. Exceeding controller electrical
ratings can result in permanent damage to
the controller and void any warranty.
Important: Use copper conductors only. Make all wiring
in accordance with local, national, and
regional regulations.
Important: Electrostatic discharge can damage
controller components. Use proper
electrostatic discharge precautions during
installation, setup, and servicing to avoid
damaging the controller.
For detailed information on configuring and wiring an
MS/TP Bus, FC bus, and SA bus, refer to the MS/TP
Communications Bus Technical Bulletin (LIT-12011034).
When connecting the IOM to an SA bus, wire the bus
terminal block plugs on the controller and other SA bus
devices in a daisy-chain configuration using 4-wire
twisted, shielded cable as shown in Figure 5. See Input
and Output Wiring Guidelines for more information.
5IOM1711 and IOM2711 Input/Output Module Installation Instructions
Figure 5: SA Bus Terminal Block Wiring
Note: The SA PWR/SHLD terminal does not supply 15
VDC. The SA PWR/SHLD terminal is isolated and
can be used to connect (daisy chain) the 15 VDC
power leads on the SA bus (Figure 5) or the cable
shields on the FC bus (Figure 4). The SA bus
supervisor (FAC, FEC, or VMA) supplies 15 VDC
to devices on the SA Bus requiring power.
Supply Power Terminal Block
The 24 VAC supply power terminal block is a gray,
removable, 3-terminal plug that fits into a board-mounted
jack on the top right of the controller.
Wire the 24 VAC supply power wires from the transformer
to the HOT and COM terminals on the terminal plug as
shown in the following figure. The middle terminal on the
supply power terminal block is not used. See Table 5 for
more information about the Supply Terminal Block.
Figure 7: 24 VAC Supply Power Terminal Block Wiring
SA/FC Bus Port
The SA/FC bus port on the front of the controller is an
RJ-12, 6-position modular jack that provides a connection
for devices on the SA bus.
The SA/FC bus port is connected internally to the SA/FC
bus terminal block. See Table 5 for more information.
The SA/FC Bus Port pin assignment is shown in the Pin
Number Assignments figure below.
Figure 6: Pin Number Assignments for Sensor, SA
Bus and FC Bus Ports on Controllers
Important: Connect 24 VAC supply power to the
controller and all other network devices so
that transformer phasing is uniform across
the network devices. Powering network
devices with uniform 24 VAC supply power
phasing reduces noise, interference, and
ground loop problems. The controller does
not require an earth ground connection.
Wireless Network Applications
Important: Wireless operation is not approved for
smoke control applications. Refer to the
Metasys® System UL 864 10th Edition
UUKL/ORD-C100-13 UUKLC Smoke
Control System Technical Bulletin
(LIT-12012487) for detailed requirements
and procedures for installing,
commissioning, and operating UL 864
UUKL/UUKLC Listed Metasys system
devices.
6IOM1711 and IOM2711 Input/Output Module Installation Instructions
Termination Details
A set of Johnson Controls® termination diagrams provides details for wiring inputs and outputs to the controllers.
See the figures in this section for the applicable termination diagrams.
Table 2: Termination Details
Type of Field Device
Input/Output
UITemperature Sensor
UIVoltage Input - External
Source
Termination DiagramsType of
Source
(Self-Powered)
Source (Isolated)
Source (2-wire)
UIVoltage Input - Internal
UIVoltage Input
UICurrent Input - External
UICurrent Input - Internal
7IOM1711 and IOM2711 Input/Output Module Installation Instructions
Table 2: Termination Details
Type of Field Device
Input/Output
UICurrent Input - Internal
Source (3 wire)
UICurrent Input - External
Source (in Loop)
UIFeedback from
EPP-1000
Termination DiagramsType of
Actuator (Switch Low,
External Source)
(Switch Low, Externally
Sourced)
(Switch High,
Externally Sourced)
UI or BIDry Contact
UOIncremental Control to
UO24 VAC Binary Output
UO24 VAC Binary Output
8IOM1711 and IOM2711 Input/Output Module Installation Instructions
Table 2: Termination Details
Type of Field Device
Input/Output
UOIncremental Control to
Actuator (Switch High,
Externally Sourced)
UOAnalog Output
(Current)
UO4–20 mA Output to
Actuator
Termination DiagramsType of
Actuator
Actuator (External
Source)
UOVoltage (Analog Ouput)
UO4–20 mA Output to
UO0–10 VDC Output to
9IOM1711 and IOM2711 Input/Output Module Installation Instructions
Table 2: Termination Details
Type of Field Device
Input/Output
UO0–10 VDC Output to
Actuator (Internal
Source)
RO24 VAC Binary Output
(Switch Low, Externally
Sourced)
RO24 VAC Binary Output
(Switch High,
Externally Sourced)
Termination DiagramsType of
Terminal Wiring Guidelines, Functions, Ratings, and Requirements
Input and Output Wiring Guidelines
Table 3 provides information and guidelines about the
functions, ratings, and requirements for the controller
input and output terminals; and references guidelines for
determining proper wire sizes and cable lengths.
In addition to the wiring guidelines in Table 3, observe
these guidelines when wiring controller inputs and
outputs:
• Run all low-voltage wiring and cables separate from
high-voltage wiring.
• All input and output cables, regardless of wire size or
number of wires, should consist of stranded, insulated,
and twisted copper wires.
• Shielded cable is not required for input or output
cables.
• Shielded cable is recommended for input and output
cables that are exposed to high electromagnetic or
radio frequency noise.
• Inputs/outputs with cables less than 30 m (100 ft)
typically do not require an offset in the software setup.
Cable runs over 30 m (100 ft) may require an offset
in the input/output software setup.
10IOM1711 and IOM2711 Input/Output Module Installation Instructions
Table 3: IOM17 and IOM27 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Terminal Block
Label
(Inputs)
(IOM27)
BINARY
(Inputs)
(IOM17)
Label
+15 VUNIVERSAL
INn
ICOMn
INn
ICOMn
Function, Ratings, RequirementsTerminal
15 VDC Power Source for active (3-wire) input devices
connected to the Universal INn terminals.
Provides 35 mA total current
Analog Input - Voltage Mode (0–10 VDC)
10 VDC maximum input voltage
Internal 75k ohm Pull-down
Analog Input - Current Mode (4–20 mA)
Internal 100 ohm load impedance
Analog Input - Resistive Mode (0–600k ohm)
Internal 12 V, 15k ohm pull up
Qualified Sensors: 0-2k ohm potentiometer, RTD (1k Nickel
[Johnson Controls® sensor], 1k Platinum, and A99B Silicon
Temperature Sensor) Negative Temperature Coefficient
(NTC) Sensor (10k Type L, 10k JCI Type II, 2.252k Type
II)
Binary Input - Dry Contact Maintained Mode
1 second minimum pulse width
Internal 12 V, 15k ohm pull up
Universal Input Common for all Universal Input terminals
Note: All Universal ICOMn terminals share a common,
which is isolated from all other commons.
Binary Input - Dry Contact Maintained Mode
0.01 second minimum pulse width
Internal 18 V, 3k ohm pull up
Binary Input - Pulse Counter/Accumulator Mode
0.01 second minimum pulse width
(50 Hz at 50% duty cycle)
Internal 18 V, 3k ohm pull up
Binary Input Common for all Binary Input (IN) terminals
Note: All Binary ICOMn terminals share a common, which
is isolated from all other commons.
Determine Wire Size and
Maximum Cable Length
Same as (Universal) INn
Note: Use 3-wire cable for
devices that source
power from the +15V
terminal.
See Guideline A in Table 4.
See Guideline B in Table 4.
See Guideline A in Table 4.
See Guideline A in Table 4.
Same as (Universal) INn
See Guideline A in Table 4.
11IOM1711 and IOM2711 Input/Output Module Installation Instructions
Table 3: IOM17 and IOM27 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Terminal Block
Label
Universal
(Outputs)
(IOM27)
Label
OUTn
OCOMn
Function, Ratings, RequirementsTerminal
Analog Output - Voltage Mode (0–10 VDC)
10 VDC maximum output voltage
10 mA maximum output current
Required an external load of 1,000 ohm or more.
Note: The Analog Output (AO) operates in the Voltage
Mode when connected to devices with impedances
greater than 1,000 ohm. Devices that drop below
1,000 ohm may not operate as intended for Voltage
Mode applications.
Analog Output - Current Mode (4–20 mA)
Requires and external load between 0 and 300 ohm.
Note: The Analog Output (AO) operates in the Current
Mode when connected to devices with impedances
less than 300 ohm. Devices that exceed 300 ohm
may not operate as intended for Current Mode
applications.
Binary Output Mode - 24 VAC/DC Field-effect Transistor
(FET)
Connects OUTn to OCOMn when activated.
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current (hold current)
Isolated from all other terminal commons, including other
UO Commons.
Determine Wire Size and
Maximum Cable Length
See Guideline A in Table 4.
See Guideline B in Table 4.
See Guideline B in Table 4.
Same as OUTUniversal Output (UO) Common
12IOM1711 and IOM2711 Input/Output Module Installation Instructions
Table 3: IOM17 and IOM27 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Terminal Block
Label
RELAY
n
(Outputs)
(IOM27)
Label
OUT NOn
OCOMn
OUT NCn
Function, Ratings, RequirementsTerminal
Normal Open Contact
Connects OCOM to OUT NO when activated.
UL Listed (-0 model only)
1/4 hp 120 VAC, 1/2 hp 240 VAC
360 VA Pilot Duty at 120/240 VAC (B300)
3 A Non-inductive 24–240 VAC
CE Marking (-2 model only): 6 (4) A N.O. or N.C. only, 240
VAC
Relay Common
Isolated from all other terminal commons, including other
Relay Commons.
Normal Closed Contact
Connects OCOM to OUT NC when activated.
UL Listed (-0 model only)
1/4 hp 120 VAC, 1/2 hp 240 VAC
360 VA Pilot Duty at 120/240 VAC (B300)
3 A Non-inductive 24–240 VAC
CE Marking (-2 model only): 6 (4) A N.O. or N.C. only, 240
VAC
Determine Wire Size and
Maximum Cable Length
The Relay output terminals can
accommodate the following
maximum wire sizes:
Two wires per terminal:
1.3 mm (16 AWG) maximum
wire size
or
One wire per terminal:
2.0 mm (12 AWG) maximum
Note: You must determine
the required wire size
for the high-voltage
(>30 V) terminals
according to relay
ratings, the applied
load, and the local,
national, or regional
electrical codes.
13IOM1711 and IOM2711 Input/Output Module Installation Instructions
Cable and Wire Length Guidelines
Table 4 defines cable length guidelines for the various wire sizes that may be used for wiring low-voltage (<30 V)
input and outputs.
Table 4: Cable Length Guidelines and Recommended Wire Sizes for Low-Voltage (<30 V) Inputs and Outputs
1
Guideline
Wire Size/Gauge and Type
Length and Type
1.0 mm (18 AWG) stranded copperA
C
1 The required wire sizes and lengths for high-voltage (>30 V) Relay Outputs are determined by the load connected to the
relay and local, national, or regional electrical codes.
See Figure 8 to select wire size/gauge.
Use stranded copper wire
457 m (1,500 ft) twisted
wire
297 m (975 ft) twisted wire0.8 mm (20 AWG) stranded copper
183 m (600 ft) twisted wire0.6 mm (22 AWG) stranded copper
107 m (350 ft) twisted wire0.5 mm (24 AWG) stranded copper
229 m (750 ft) twisted wire1.0 mm (18 AWG) stranded copperB
137 m (450 ft) twisted wire0.8 mm (20 AWG) stranded copper
91 m (300 ft) twisted wire0.6 mm (22 AWG) stranded copper
61 m (200 ft) twisted wire0.5 mm (24 AWG) stranded copper
See Figure 8 to determine
cable length. Use twisted
wire cable.
AssumptionsMaximum Cable
100 mV maximum voltage drop
Depending on cable and the connected input
or output device, you may have to define an
offset in the setup software for the input or
output point.
100 mV maximum voltage drop
Depending on cable and the connected input
or output device, you may have to define an
offset in the setup software for the input or
output point.
N/A
Maximum Cable Length versus Load Current
Use Figure 8 to estimate the maximum cable length relative to the wire size and the load current (in mA) when wiring
inputs and outputs.
Note: Figure 8 applies to low-voltage (<30 V) inputs and outputs only. The required wire size and length for
high-voltage (>30 V) Relay Outputs is determined by the load connected to the relay and local electrical
codes.
Figure 8: Maximum Wire Length for Low-Voltage (<30 V) Inputs and Outputs by Current and Wire Size
14IOM1711 and IOM2711 Input/Output Module Installation Instructions
SA/FC Bus and Supply Power Wiring Guidelines
Table 5 provides information about the functions, ratings,
and requirements for the communication bus and supply
power terminals; and guidelines for wire sizes, cable
types, and cable lengths when wiring the controller's
communication buses and supply power.
In addition to the guidelines in Table 5, observe these
guidelines when wiring an SA or FC bus and the 24 VAC
supply power:
• Run all low-voltage wiring and cables separate from
high-voltage wiring.
• All SA and FC bus cables, regardless of wire size,
should be twisted, insulated, stranded copper wire.
• Shielded cable is strongly recommended for all SA
and FC bus cables.
•
Refer to the MS/TP Communications Bus Technical
Bulletin (LIT-12011034) for detailed information
regarding wire size and cable length requirements for
the SA and FC buses.
Table 5: Communications Bus and Supply Power Terminal Blocks, Functions, Ratings, Requirements, and
Cables
Terminal
Block/Port
Labels
Function, Electrical Ratings/RequirementsTerminal
Recommended Cable Type
1
Label
FCBUS
or
SABUS
SA/FC BUS
(Port)
2
2
2
-
COM
SHLD
or
SAPWR
HOT24~
COM
FC or SA Bus Communications+
Signal Reference (Common) for FC or SA bus
communications
SHLD on FC Bus: Isolated terminal (optional shield drain
connection
SA PWR on SA Bus: 15 VDC power lead connection
Note: The SA PWR terminal on an IOM controller does
not supply 15 VDC. The SA bus supervisor supplies
15 VDC to devices on the SA Bus requiring power.
RJ-12 6-Position Modular Connector provides:
FC or SA Bus Communications
FC or SA Bus Signal Reference and 15 VDC Common
Commissioning Converter or ZFR181x/ZFR182x Wireless
Router
(Maximum total current draw for SA Bus is 240 mA.)
24 VAC Power Supply - Hot
Supplies 20-30 VAC (Nominal 24 VAC)
24 VAC Power Supply - Common
(Isolated from all other Common terminals on controller.)
FC Bus: 0.6 mm (22 AWG)
stranded, 3-wire twisted, shielded
cable recommended.
SA Bus: 0.6 mm (22 AWG)
stranded, 4-wire (2 twisted-pairs),
shielded cable recommended.
Note: On the SA Bus, the + and -
wire are one twisted pair,
and the COM and SA PWR
are the second twisted pair
of wires.
Wireless Commissioning Converter
retractable cable or 24 AWG 3-pair
CAT 3 Cable <30.5 m (100 ft)
0.8 mm to 1.0 mm
(18 AWG) 2-wire
1
See Table 4 to determine wire size and cable lengths for cables.
2 The SA Bus and FC Bus wiring recommendations in this table are for MS/TP bus communications at 38,400 baud. For more
information, refer to the MS/TP Communications Bus Technical Bulletin (LIT-12011034).
15IOM1711 and IOM2711 Input/Output Module Installation Instructions
Setup and Adjustments
Setting the Device Addresses
Metasys® field controllers are master devices on MS/TP
(SA or FC) buses. Before operating controllers on a bus,
you must set a valid and unique device address for each
controller on the bus. You set a controller's device
address by setting the positions of the switches on the
DIP switch block at the top of the controller (Figure 9).
Device addresses 4 through 127 are the valid addresses
for these controllers.
The DIP switch block has eight switches numbered 128,
64, 32, 16, 8, 4, 2, and 1. Switches 64 through 1 are
device address switches. Switch 128 is a mode switch
that enables a controller to operate on a ZFR/ZFR Pro
Series Wireless Field Bus. Set switch 128 to Off to enable
the hard-wired SA or FC bus application.
Figure 9: Device Address DIP Switch Block Set to
Address 21
To set the device addresses on Metasys field controllers:
1. Set all of the switches on the address DIP switch
block (128 through 1) to Off.
2. Set one or more of the seven address switches (64
though 1) to ON, so that the sum of the switch
numbers set to ON equals the intended device
address. See Table 6 for valid device addresses.
Set the highest number switch that is less than or
equal to the intended device address to ON. Then
continue setting lower numbered switches until the
total equals the intended address. For example, if the
intended device address is 21, set switch 16 to ON
first, then set switch 4 ON, followed by switch 1
(16+4+1= 21).
3. Set switch 128 to OFF to enable the hard-wired SA
or FC bus application.
Note: Do not connect a controller with switch 128
set to ON to an active (hard-wired) SA or FC
bus. When a controller with switch 128 set to
ON and a device address from 4 to 127 is
connected to a wired field bus, the entire field
bus is rendered inoperable until the controller
is disconnected or switch 128 is set to Off.
4. Set a unique and sequential device address for each
of the controllers connected on the SA or FC bus
starting with device address 4.
To ensure the best bus performance, set sequential
device addresses with no gaps in the device address
range (4, 5, 6, 7, 8, 9, and so on). The controllers do
not need to be physically connected on the bus in
their numerical device address order.
5. Write each controller's device address on the white
label below the DIP switch block on the controller's
cover.
Table 6 describes the FC bus and SA bus devices
addresses for Johnson Controls® MS/TP
communications bus applications.
Refer to the MS/TP Communications Bus Technical
Bulletin (LIT-12011034) for more information on
controller device addresses and how to set them on
MS/TP buses.
Table 6: SA/FC Bus Device Address Descriptions
Use on DescriptionDevice
Address
0
(Switch
128 Off)
1 to 3
(Switch
128 Off)
4 to 127
(Switch
128 Off)
Reserved for FC Bus Supervisory Controller
(not for use on controllers).
Reserved for peripheral devices (not for use
on controllers).
Used for MS/TP master devices (controllers)
that are hardwired to an SA Bus or FC Bus.
Removing the Controller Cover
Important: Electrostatic discharge can damage
controller components. Use proper
electrostatic discharge precautions during
installation, setup, and servicing to avoid
damaging the controller.
Important: Disconnect all power sources to the
controller before removing cover and
changing the position of any jumper or the
EOL switch on the controller. Failure to
disconnect power before changing a jumper
or EOL switch position can result in damage
to the controller and void any warranties.
16IOM1711 and IOM2711 Input/Output Module Installation Instructions
The controller cover is held in place by four plastic latches
that extend from the base and snap into slots on the
inside of the housing cover.
To remove the controller cover:
1. Place your fingernails under the two cover lift tabs
(Figure 3) on the sides of the housing cover and
gently pry the top of the cover away from the base to
release the cover from the two upper latches.
2. Pivot the top of the cover further to release it from the
lower two latches.
3. Replace the cover by placing it squarely over the
base, and then gently and evenly push the cover on
to the latches until they snap into the latched position.
Figure 10: IOM17 or IOM27 with Cover Removed
Showing EOL Switch Location
Figure 11: End-of-Line Switch Positions
To set the EOL switch on a controller:
1. Determine the physical location of the controller on
the SA or FC bus.
2. Determine if the controller must be set as a
terminating device on the bus.
Note: The EOL termination rules for SA buses and
FC buses are different. Refer to the MS/TP
Communications Bus Technical Bulletin
(LIT-12011034) for detailed information
regarding EOL termination rules and EOL
switch settings on SA and FC buses.
3. If the controller is a terminating device on the FC bus,
set the EOL switch to ON. If the controller is not a
terminating device on the bus, set the EOL switch to
Off.
Setting the End-of-Line (EOL) Switch
Each controller has an EOL switch, which, when set to
ON, sets the controller as a terminating device on the
bus. See Figure 10 for the EOL switch location. The
default EOL switch position is Off.
Table 7: Status LEDs and Descriptions of LED States
LED ColorLED Label
State
On SteadyGreenPOWER
Off SteadyRedFAULT
Description of LED StatesNormal LED
Off Steady = No Supply Power or the controller’s polyswitch/resettable fuse
is open. Check Output wiring for short circuits and cycle power to controller.
On Steady = Power Connected
Off Steady = No Faults
On Steady = Device Fault; no application loaded; Main Code download
required, if controller is in Boot mode.
Blink - 2 Hz = Download or Startup in progress, not ready for normal operation
When a controller is connected to power with its EOL
switch set to ON, the amber EOL LED on the
controller cover is lit.
Commissioning the Controllers
You commission IOM controllers with the Controller
Configuration Tool (CCT) software. Refer to the Controller
Tool Help (LIT-12011147) for detailed information on
commissioning controllers.
Troubleshooting the Controllers
Observe the Status LEDs on the front of the controller
and see Table 7 to troubleshoot the controller.
17IOM1711 and IOM2711 Input/Output Module Installation Instructions
Table 7: Status LEDs and Descriptions of LED States
LED ColorLED Label
Description of LED StatesNormal LED
State
Blink - 2 HzGreenSA/FC BUS
AmberEOL
Off (Except on
terminating
devices)
Blink - 2 Hz = Data Transmission (normal communication)
Off Steady = No Data Transmission (N/A - auto baud not supported)
On Steady = Communication lost, waiting to join communication ring
On Steady = EOL switch in ON position
Off Steady = EOL switch in Off position
Repair Information
The MS-IOM1711-0U and MS-IOM2711-0U models are UL 864 10th Edition UUKL/ORD-C100-13 UUKLC listed for
smoke control. If a controller fails to operate within its specifications, contact the Johnson Controls Repair Center
in Louisville, Kentucky, at 1-502-671-7312.
Accessories
See Table 8 for controller accessories ordering information.
Table 8: Accessories Ordering Information
DescriptionProduct Code Number
PAN-PWRSP-U
120/24 VAC, 96 VA, Transformer with circuit breaker and 120 VAC outlet, approved for
Smoke Control
Technical Specifications
Table 9: IOM4711-0U Technical Specifications
MS-IOM4711-0U: Input/Output Modules, Smoke ControlProduct Code Numbers
Supply Voltage
Power Consumption
Ambient Conditions
Addressing
Communications Bus
24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50/60 Hz, power supply
Class 2 (North America)
14 VA maximum
Note: VA rating does not include any power supplied to the peripheral devices
connected to Binary Outputs (BOs) or Configurable Outputs (COs), which
can consume up to 12 VA for each BO or CO; for a possible total
consumption of an additional 84 VA (maximum).
Operating: 0° to 50°C (32° to 122°F); 10% to 90% RH noncondensing
Storage: -40° to 80°C (-40° to 176°F); 5% to 95% RH noncondensing
DIP switch set; valid controller device addresses 4–127 (Device addresses 0–3 and
128–255 are reserved and not valid controller addresses.)
BACnet® MS/TP, RS-485:
3-wire FC Bus between the supervisory controller and other controllers
4-wire SA bus between controller, network sensors and other sensor/actuator devices,
includes a lead to source 15 VDC supply power (from controller) to bus devices.
H8SX/166xR Renesas® 32-bit microcontrollerProcessor
512 KB Flash Memory and 128 KB Random Access Memory (RAM)Memory
18IOM1711 and IOM2711 Input/Output Module Installation Instructions
Table 9: IOM4711-0U Technical Specifications
Input and Output Capabilities
Analog Input/Analog Output Resolution
and Accuracy
Terminations
Mounting
Housing
Dimensions(Height x Width x Depth)
Compliance
IOM1711-x:
4 - Binary Inputs: Defined as Dry Contact Maintained or Pulse Counter/Accumulator
Mode.
IOM2711-x:
2 - Universal Inputs: Defined as 0–10 VDC, 4–20 mA, 0–600k ohm, or Binary Dry
Contact
2 - Universal Outputs: Defined as 0–10 VDC, 4–20 mA, or 24 VAC/DC Field-Effect
Transistor (FET) BO
2 - Relay Outputs: (Single-Pole, Double-Throw)
UL Listed (-0 model only)
1/4 hp 120 VAC, 1/2 hp 240 VAC
360 VA Pilot Duty at 120/240 VAC (B300)
3 A Non-inductive 24-240 VAC
CE Marking (-2 model only): 6 (4) A N.O. or N.C. only, 240 VAC
Input: 16-bit resolution
Output: 16-bit resolution, +/- 200 mV accuracy in 0-10 VDC applications
Input/Output: Fixed Screw Terminal Blocks
SA/FC Bus and Supply Power: 4-Wire and 3-Wire Pluggable Screw Terminal
Blocks
SA/FC Bus Port: RJ-12 6-Pin Modular Jacks
Horizontal on single 35 mm DIN rail mount (preferred), or screw mount on flat surface
with three integral mounting clips on controller
Enclosure material: ABS and polycarbonate UL94 5VB; Self extinguishing, Plenum
Rated
150 x 120 x 53 mm (5-7/8 x 4-3/4 x 2-1/8 in.) including terminals and mounting clips
Note: Mounting space requires an additional 50 mm (2 in.) space on top, bottom
and front face of controller for easy cover removal, ventilation and wire
terminations.
0.5 kg (1.1 lb) maximumWeight
United States: UL Listed, File E107041, CCN PAZX, UL Listed, Energy Management
Equipment; FCC Compliant to CFR47, Part 15, Subpart B, Class A
UL Listed, File S4977, UL 864 UUKL/UUKLC 10th Edition Listed, Smoke Control
Units and Accessories for Fire Alarm Systems Equipment
Canada: UL Listed, File E107041, CCN PAZX7 CAN/CSA C22.2 No.205, Signal
Equipment; Industry Canada Compliant, ICES-003
UL Listed, File S4977, UL 864 UUKL/ORD-C100-13 10th Edition Listed, Smoke
Control Units and Accessories for Fire Alarm Systems
Europe: Johnson Controls declares that these products are in compliance with the
essential requirements and other relevant provisions of the EC Directive and Low
Voltage Directive. Declared as Independently Mounted, Intended for Panel Mounting,
Operating Control Type 1.B, 4kV rated impulse voltage, 100.7°C ball pressure test.
Europe: Johnson Controls declares that this product is in compliance with the
essential requirements and other relevant provisions of the EC Directive.
Australia and New Zealand: RCM Mark, Australia/NZ Emissions Compliant
BACnet International: BACnet Testing Laboratories (BTL) Protocol Revision 4
Listed BACnet Application Specific Controller (B-ASC)
19IOM1711 and IOM2711 Input/Output Module Installation Instructions
The performance specifications are nominal and conform to acceptable industry standard. For application at conditions
beyond these specifications, consult the local Johnson Controls® office. Johnson Controls shall not be liable for
damages resulting from misapplication or misuse of its products.
APAC Single Point of Contact:NA/SA Single Point of Contact:European Single Point of Contact:
JOHNSON CONTROLS
WESTENDHOF 3
45143 ESSEN
GERMANY
JOHNSON CONTROLS
507 E MICHIGAN ST
MILWAUKEE WI 53202
USA
JOHNSON CONTROLS
C/O CONTROLS PRODUCT MANAGEMENT
NO. 22 BLOCK D NEW DISTRICT
WUXI JIANGSU PROVINCE 214142
CHINA
507 E. Michigan Street, Milwaukee, WI 53202
Johnson Controls® is a registered trademark of Johnson Controls.
All other marks herein are the marks of their respective owners.© 2018 Johnson Controls
Building Technologies & Solutions
www.johnsoncontrols.comPublished in U.S.A.
20IOM1711 and IOM2711 Input/Output Module Installation Instructions
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