IOM4711 Input/Output Module Installation Instructions

MS-IOM4711-0U

Part No. 24-10144-211, Rev. A

Software Release 8.1
Issued March 2018

Application
The IOM47 field controller is part of the Metasys® system North American Emissions
Field Equipment Controller family. Input/Output Module Compliance
(IOM) controller expand the number of points connected
to a Network Automation Engine (NAE), Field Equipment
Controller (FEC), or Advanced Application Field Canada
Equipment Controller (FAC) to monitor and control a wide This Class (A) digital apparatus meets all the
variety of HVAC equipment. requirements of the Canadian Interference-Causing
Equipment Regulations.
IOM controllers operate on an RS-485 BACnet® MS/TP
Cet appareil numérique de la Classe (A) respecte toutes
Bus as BACnet Application Specific Controllers (B-ASCs)
les exigences du Règlement sur le matériel brouilleur
and integrate into Johnson Controls® and third-party
du Canada.
BACnet systems.
Note: With CCT Release 10.3 and Release Module (RM)
United States
10.2, a new capability allows VMAs, FECs, and
FACs to communicate by using either the BACnet This equipment has been tested and found to comply
or the N2 field bus networking protocol. The I/O with the limits for a Class A digital device pursuant to
can be connected through the SA bus to a host Part 15 of the FCC Rules. These limits are designed to
controller that is using either the BACnet or the provide reasonable protection against harmful
N2 protocol. Only the BACnet protocol is interference when this equipment is operated in a
supported when the I/O is connected directly to commercial environment. This equipment generates,
the trunk using the FC bus. uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction
Important: The MS-IOM4711-0U model is used in manual, may cause harmful interference to radio
Metasys Release 8.1 smoke control communications. Operation of this equipment in a
applications and is UL 864 UUKL/UUKLC residential area may cause harmful interference, in which
10th Edition Smoke Control Listed. You case the users will be required to correct the interference
must refer to the Metasys® System UL 864 at their own expense.
10th Edition UUKL/ORD-C100-13 UUKLC
Smoke Control System Technical Bulletin
(LIT-12012487) for detailed requirements Installation
and procedures for installing, Observe these guidelines when installing a controller:
commissioning, and operating UL 864 • Transport the controller in the original container to
UUKL/UUKLC Listed Metasys system minimize vibration and shock damage.
devices. The UL 864 UUKL/UUKLC listing
for Smoke Control Equipment is voided if • Verify that all parts shipped with the controller.
(1) you do not use the required software • Do not drop the controller or subject it to physical
tools at the required versions; or (2) you do shock.
not meet the requirements or do not follow
the procedures as documented in the Parts Included
Metasys® System UL 864 10th Edition
• one controller with removable terminal blocks (Power
UUKL/ORD-C100-13 UUKLC Smoke
and SA/FC bus are removable)
Control System Technical Bulletin
(LIT-12012487). • one installation instructions sheet

IOM4711 Input/Output Module Installation Instructions 1

 Figure 1: Controller Mounting Positions
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

Mounting
Observe these guidelines when mounting a 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. DIN Rail Mount Applications
• Mount the controller in the proper mounting position Mounting the controller horizontal on 35 mm DIN rail is
(Figure 1). the preferred mounting method.
• Mount the controller on a hard, even surface To mount an IOM47 controller on 35 mm DIN rail:
whenever possible in wall-mount applications.
1. Securely mount a 20 cm (8 in.) or longer section of
• Use shims or washers to mount the controller securely 35 mm DIN rail horizontal and centered in the desired
and evenly on the mounting surface. space so that the controller mounts in the horizontal
• Mount the controller in an area free of corrosive position shown in Figure 1.
vapors and observe the Ambient Conditions 2. Pull the two bottom mounting clips outward from the
requirements in Table 10. controller to the extended position (Figure 2).
• Provide for sufficient space around the controller for 3. Hang the controller on the DIN rail by the hooks at
cable and wire connections for easy cover removal the top of the (DIN rail) channel on the back of the
and good ventilation through the controller (50 mm controller (Figure 2), and position the controller snugly
[2 in.] minimum on the top, bottom, and front of the against the DIN rail.
controller).
4. Push the bottom mounting clips inward (up) to secure
• Do not mount the controller on surfaces prone to the controller on the DIN rail.
vibration, such as duct work.
To remove the controller from the DIN rail, pull the
• Do not mount the controller in areas where
bottom mounting clips out to the extended position
electromagnetic emissions from other devices or
and carefully lift the controller off the DIN rail.
wiring can interfere with controller communication.
Observe these additional guidelines when mounting an
IOM47 controller in a panel or enclosure:
Wall Mount Applications
To mount a controller directly on a wall or other flat
• Mount the controller so that the enclosure walls do vertical surface:
not obstruct cover removal or ventilation through the
controller. 1. Pull the two bottom mounting clips outward and
ensure they are locked in the extended position as
• Mount the controller so that the power transformer shown in Figure 2.
and other devices do not radiate excessive heat to
the controller. 2. Mark the mounting hole locations on the wall using
the dimensions in Figure 2 and one of the mount
• Do not install the controller in an airtight enclosure. positions shown in Figure 1. Or, hold the controller
up to the wall or surface in a proper mount 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).
IOM4711 Input/Output Module Installation Instructions 2
4. Hold the controller in place, and insert the screws Figure 2: Back of Controller Showing Extended
through the mounting clips and into the holes (or Mounting Clips, DIN Rail Channel, and
anchors). Carefully tighten all of the screws. Mounting Dimensions, mm (in.)

Important: Do not overtighten the mounting screws.

Overtightening the screws may damage
the mounting clips.

Figure 3: IOM47 Physical Features

Table 1: IOM47 Physical Features Callouts and Descriptions

Callout Physical Feature Description
1 Binary Output (BO) Source Power Selection Jumper Pin Blocks, 3 – BO Jumper Pin Blocks. (See Table 3.)
2 Device Address DIP Switch Block. (See Setting the Device Addresses.)
3 Mounting Clip (One of Three)
4 Configurable Output (CO) Terminal Blocks, 4 – Configurable Outputs. (See Table 3.)
5 Analog Output (AO) Terminal Block, 2 – Analog Outputs. (See Table 3.)

IOM4711 Input/Output Module Installation Instructions 3

Table 1: IOM47 Physical Features Callouts and Descriptions
Callout Physical Feature Description
6 24 VAC, Class 2 Supply Power Terminal Block. (See Table 5.)
7 Cover Lift Tab (One of Two). (See Removing the Controller Cover.)
8 Sensor/Actuator (SA) Bus or Field Controller (FC) Bus Terminal Block. (See Table 5.)
9 Binary Input (BI) Terminal Block, 2 – Binary Inputs. (See Table 3.)
10 Universal Input (UI) Terminal Blocks, 6 – Universal Inputs. (See Table 3.)
11 End-of-Line (EOL) Switch. (See Setting the End-of-Line (EOL) Switch)
Note: The EOL Switch is located under the controller cover. You must remove the cover to change the EOL switch
position.
12 LED Status Indicators. (See Table 8.)
13 Sensor Actuator (SA) Bus / Field Controller (FC) Bus Port (RJ-12 6-pin Modular Jack). (See SA/FC Bus Port.)
14 BO Terminal Block, 3 – Binary Outputs. (See Table 3.)

IOM4711 Input/Output Module Installation Instructions 4

Wiring
SA/FC Bus Terminal Block
An IOM can be connected to a Sensor/Actuator (SA) bus
Risk of Electric Shock: Disconnect the power supply or a Field Controller (FC) bus, but not to both buses
before making electrical connections to avoid electric simultaneously. The SA/FC bus terminal block is a
shock. removable, 4-terminal plug that fits into a board-mounted
jack.
Mise En Garde: Risque de décharge électrique:
Débrancher l'alimentation avant de réaliser tout When connecting the IOM to an FC bus, wire the bus
raccordement électrique afin d'éviter tout risque de terminal block plugs on the controller, and the other
décharge électrique. controllers in a daisy-chain configuration using 3-wire
twisted, shielded cable as shown in Figure 4. See Table
5 for more information.
Figure 4: FC Bus Terminal Block Wiring
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.
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 When connecting the IOM to an SA bus, wire the bus
in accordance with local, national, and terminal block plugs on the controller and other SA bus
regional regulations. devices in a daisy-chain configuration using 4-wire
twisted, shielded cable as shown in Figure 5. See Table
Important: Electrostatic discharge can damage 3 for more information.
controller components. Use proper
Figure 5: SA Bus Terminal Block Wiring
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).

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

All 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.
IOM4711 Input/Output Module Installation Instructions 5
Note: The SA PWR/SHLD terminal does not supply 15 Figure 7: 24 VAC Supply Power Terminal Block Wiring
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 supplies 15 VDC to
devices on the SA bus requiring power.

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 Figure
6.
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
Supply Power Terminal Block Control System Technical Bulletin
The 24 VAC supply power terminal block is a gray, (LIT-12012487) for detailed requirements
removable, 3-terminal plug that fits into a board-mounted and procedures for installing,
jack on the top right of the controller. commissioning, and operating UL 864
UUKL/UUKLC Listed Metasys system
Wire the 24 VAC supply power wires from the transformer devices.
to the HOT and COM terminals on the terminal plug as
shown in Figure 7. The middle terminal on the supply
power terminal block is not used. See Table 5 for more
information about the supply terminal block.

IOM4711 Input/Output Module Installation Instructions 6

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 Type of Termination Diagrams
Input/Output
Temperature Sensor UI

Voltage Input - External UI

Source

Voltage Input - Internal Source UI

Voltage Input (Self-Powered) UI

Current Input - External UI

Source (Isolated)

Current Input - Internal Source UI

(2-wire)

IOM4711 Input/Output Module Installation Instructions 7

Table 2: Termination Details
Type of Field Device Type of Termination Diagrams
Input/Output
Current Input - Internal Source UI
(3 wire)

Current Input - External UI

Source (in Loop)

Feedback from EPP-1000 UI

Dry Contact (Binary Input) UI or BI

0–10 VDC Output to Actuator CO or AO

(External Source)

0–10 VDC Output to Actuator CO or AO

(Internal Source)

IOM4711 Input/Output Module Installation Instructions 8

Table 2: Termination Details
Type of Field Device Type of Termination Diagrams
Input/Output
4–20 mA Output to Actuator CO or AO

4–20 mA Output to Actuator CO or AO

Voltage (Analog Output) AO

Analog Output (Current) AO

24 VAC Triac Output (Switch CO or AO

Low, External Source)

Incremental Control to CO or AO
Actuator (Switch Low,
Externally Sourced)

24 VAC Triac Output (Switch CO or AO

High, Externally Sourced)

IOM4711 Input/Output Module Installation Instructions 9

Table 2: Termination Details
Type of Field Device Type of Termination Diagrams
Input/Output
Incremental Control to CO or AO
Actuator (Switch High,
Externally Sourced)

Incremental Control to BO
Actuator (Switch Low,
Externally Sourced)

24 VAC Binary Output (Switch BO

Low, Externally Sourced)

24 VAC Binary Output (Switch BO

High, Externally Sourced)

Incremental Control to BO
Actuator (Switch High,
Externally Sourced)

IOM4711 Input/Output Module Installation Instructions 10

Table 2: Termination Details
Type of Field Device Type of Termination Diagrams
Input/Output
Network Stat with Phone Jack SA Bus
(Fixed Address = 199)

Network Stat with Terminals SA Bus

Addressable

Network Stat with Terminals SA Bus

(Fixed Address = 199)

Terminal Wiring Guidelines,

In addition to the wiring guidelines in Table 3, observe
Functions, Ratings, and these guidelines when wiring controller inputs and
outputs:
Requirements
• Run all low-voltage wiring and cables separate from
high-voltage wiring.
Input and Output Wiring Guidelines
• All input and output cables, regardless of wire size or
Table 3 provides information and guidelines about the
number of wires, should consist of stranded, insulated,
functions, ratings, and requirements for the controller
and twisted copper wires.
input and output terminals; and references guidelines for
determining proper wire sizes and cable lengths. • Shielded cable is not required for input or output
cables.
Note: Inputs/outputs with cables less than 30 m (100 ft)
• Shielded cable is recommended for input and output
typically do not require an offset in the software
cables that are exposed to high electromagnetic or
setup. Cable runs over 30 m (100 ft) may require
radio frequency noise.
an offset in the input/output software setup.

IOM4711 Input/Output Module Installation Instructions 11

Table 3: IOM47 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Terminal Block Terminal Function, Ratings, Requirements Determine Wire Size and
Label Label Maximum Cable Length
1

UNIVERSAL +15 V 15 VDC Power Source for active (3-wire) input devices Same as (Universal) INn
connected to the Universal INn terminals.
(Inputs) Note: Use 3-wire cable for
Provides 100 mA total current devices that source power from
the +15V terminal.
INn Analog Input - Voltage Mode (0–10 VDC) See Guideline A in Table 4.
10 VDC maximum input voltage
Internal 75k ohm Pull-down
Analog Input - Current Mode (4–20 mA) See Guideline B in Table 4.
Internal 100 ohm load impedance
Note: A current loop fail-safe jumper can be positioned to
maintain a closed 4 to 20 mA current loop, even when the
power to the controller is interrupted or off. See UI Current
Loop Jumpers.
Analog Input - Resistive Mode (0–600k ohm) See Guideline A in Table 4.
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 See Guideline A in Table 4.
1 second minimum pulse width
Internal 12 V. 15k ohm pull up
ICOMn Universal Input Common for all Universal Input terminals Same as (Universal) INn
Note: All Universal ICOMn terminals share a common,
which is isolated from all other commons.
BINARY INn Binary Input - Dry Contact Maintained Mode See Guideline A in Table 4.
(Inputs) 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
ICOMn Binary Input Common for all Binary Input (IN) terminals
Note: All Binary ICOMn terminals share a common, which
is isolated from all other commons, except the Configurable
Output (CO) common (OCOMn) when the CO is defined
as an Analog Output.

IOM4711 Input/Output Module Installation Instructions 12

Table 3: IOM47 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Terminal Block Terminal Function, Ratings, Requirements Determine Wire Size and
Label Label Maximum Cable Length
1

ANALOG OUTn Analog Output - Voltage Mode (0–10 VDC) See Guideline C in Table 4.
(Outputs) 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 below 300 ohm may
not operate as intended for Current Mode applications.
OCOMn Analog Output Signal Common for all Analog OUT
terminals.
Note: All Analog Output Common terminals (OCOMn) share
a common, which is isolated from all other commons.
BINARY OUTn Binary Output - 24 VAC Triac (External Power Source) See Guideline C in Table 4.
(Output) Connects OUTn to OCOMn when activated.
Power Selection External Power Source Requirements:
Jumper positioned to
30 VAC maximum output voltage
External (EXT) power.
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
OCOMn Binary Output Common (for OUTn terminal)
Note: Each Binary Output Common terminal (OCOMn) is
isolated from all other commons, including other Binary
Output Common terminals.
BINARY OUTn Binary Output - 24 VAC Triac (Internal Power Source) See Guideline C in Table 4.
(Output) Sources internal 24 VAC power (24~ HOT).
Power Selection OCOMn Binary Output - 24 VAC Triac (Internal Power Source)
Jumper positioned to
Connects OCOMn to 24~ when activated.
Internal (INT) power.
Internal Power Source:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current

IOM4711 Input/Output Module Installation Instructions 13

Table 3: IOM47 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Terminal Block Terminal Function, Ratings, Requirements Determine Wire Size and
Label Label Maximum Cable Length
1

CONFIGURABLE OUTn Analog Output - Voltage Mode (0–10 VDC) See Guideline A in Table 4.
(Outputs) 10 VDC maximum output voltage
10 mA maximum output current
Required an external load of 1,000 ohm or more.
Binary Output - 24 VAC Triac (External Power Source See Guideline C in Table 4.
only)
Connects OUTn to OCOMn when activated.
External Power Source Requirements:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
OCOMn Analog Output Signal Common All Configurable Outputs Same as (Configurable) OUTn.
(COs) defined as Analog Outputs (AOs) share a common,
which is isolated from all other commons except the Binary
Input common.
Binary Output Signal Common All Configurable Outputs
(COs) defined as Binary Outputs are isolated from all other
commons, including other CO commons.

1 See Table 4 to determine wire size and cable lengths for cables.

IOM4711 Input/Output Module Installation Instructions 14

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 for Recommended Wire Sizes for Low-Voltage (<30 V) Inputs and Outputs
Guideline Wire Size/Gauge and Type Maximum Cable Assumptions
Length and Type
A 1.0 mm (18 AWG) stranded copper 457 m (1,500 ft) twisted 100 mV maximum voltage drop
wire
Depending on cable and the connected input
0.8 mm (20 AWG) stranded copper 297 m (975 ft) twisted wire or output device, you may have to define an
0.6 mm (22 AWG) stranded copper 183 m (600 ft) twisted wire offset in the setup software for the input or
output point.
0.5 mm (24 AWG) stranded copper 107 m (350 ft) twisted wire
B 1.0 mm (18 AWG) stranded copper 229 m (750 ft) twisted wire 100 mV maximum voltage drop
0.8 mm (20 AWG) stranded copper 137 m (450 ft) twisted wire Depending on cable and the connected input
0.6 mm (22 AWG) stranded copper 91 m (300 ft) twisted wire or output device, you may have to define an
offset in the setup software for the input or
0.5 mm (24 AWG) stranded copper 61 m (200 ft) twisted wire output point.
C See Figure 8 to select wire size/gauge. See Figure 8 to determine N/A
Use stranded copper wire. cable length. Use twisted
wire cable.

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.
Figure 8: Maximum Wire Length for Low-Voltage (<30V) Inputs and Outputs by Current and Wire Size

IOM4711 Input/Output Module Installation Instructions 15

 In addition to the guidelines in Table 5, observe these
SA/FC Bus and Supply Power guidelines when wiring an SA or FC bus and the 24 VAC
Wiring Guidelines supply power:
Table 5 provides information about the functions, ratings, • Run all low-voltage wiring and cables separate from
and requirements for the communication bus and supply high-voltage wiring.
power terminals; and guidelines for wire sizes, cable
• All SA and FC bus cables, regardless of wire size,
types, and cable lengths when wiring the controller's
should be twisted, insulated, stranded copper wire.
communication buses and supply power.
• 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 Terminal Function, Electrical Ratings/Requirements Recommended Cable Type
1

Block/Port Label Labels

2 + FC or SA Bus Communications FC Bus: 0.6 mm (22 AWG) stranded,
FC BUS
3-wire twisted, shielded cable
or -
recommended.
2 COM Signal Reference (Common) for FC or SA Bus
SA BUS SA Bus: 0.6 mm (22 AWG) stranded,
communications
4-wire (2 twisted-pairs), shielded cable
SHLD SHLD on FC Bus: Isolated terminal (optional shield drain recommended.
connection
or Note: On the SA Bus, the + and - wire are
SA PWR on SA Bus: 15 VDC power lead connection one twisted pair, and the COM and SA
SAPWR
PWR are the second twisted pair of wires.
Note: The SA PWR terminal on an IOM controller does
not supply 15 VDC. The SA bus supervisor (FAC, FEC, or
VMA) supplies 15 VDC to devices on the SA bus requiring
power.
2 RJ-12 6-Position Modular Connector provides: 24 AWG 3-pair CAT 3 Cable <30.5 m (100
SA/FC BUS
ft)
(Port) FC or SA Bus Communications
FC or SA Bus Signal Reference and 15 VDC Common
(Maximum total current draw for SA bus is 240 mA.)
24~ HOT 24 VAC Power Supply - Hot 0.8 mm to 1.0 mm
Supplies 20–30 VAC (Nominal 24 VAC) (18 AWG) 2-wire
COM 24 VAC Power Supply - Common
(Isolated from all other Common terminals on controller.)

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).

IOM4711 Input/Output Module Installation Instructions 16

Setup and Adjustments
4. Set a unique and sequential device address for each
of the controllers connected on the SA or FC bus
Setting the Device Addresses starting with device address 4.
Metasys field controllers are master devices on MS/TP
To ensure the best bus performance, set sequential
(SA or FC) buses. Before operating controllers on a bus,
device addresses with no gaps in the device address
you must set a valid and unique device address for each
range (4, 5, 6, 7, 8, 9, and so on). The controllers do
controller on the bus. You set a controller's device
not need to be physically connected on the bus in
address by setting the positions of the switches on the
their numerical device address order.
DIP switch block at the top of the controller (Figure 3).
Device addresses 4 through 127 are the valid addresses 5. Write each controller's device address on the white
for these controllers. label below the DIP switch block on the controller's
cover.
The DIP switch block has eight switches numbered 128,
64, 32, 16, 8, 4, 2, and 1 (Figure 9). Switches 64 through Table 6 describes the FC bus and SA bus devices
1 are device address switches. Switch 128 is a mode addresses for Johnson Controls MS/TP
switch that enables a controller to operate on a ZFR/ZFR communications bus applications.
Pro Series Wireless Field Bus. Set switch 128 to off for Refer to the MS/TP Communications Bus Technical
all hard-wired SA and FC bus applications. Bulletin (LIT-12011034) for more information on
Figure 9: Device Address DIP Switch Block Set to controller device addresses and how to set them on
Address 21 MS/TP buses.
Table 6: SA/FC Bus Device Address Descriptions
Device Use on Description
Address
0 Reserved for FC Bus Supervisory Controller
(not for use on controllers).
(Switch
128 Off)
1 to 3 Reserved for peripheral devices (not for use
on controllers).
(Switch
To set the device addresses on Metasys field controllers:
128 Off)
1. Set all of the switches on the address DIP switch 4 to 127 Used for MS/TP master devices controllers)
block (128 through 1) to Off. that are hardwired to an SA Bus or FC Bus.
(Switch
2. Set one or more of the seven address switches (64 128 Off)
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.
Removing the Controller Cover
Set the highest number switch that is less than or Important: Electrostatic discharge can damage
equal to the intended device address to ON. Then controller components. Use proper
continue setting lower numbered switches until the electrostatic discharge precautions during
total equals the intended address. For example, if the installation, setup, and servicing to avoid
intended device address is 21, set switch 16 to ON damaging the controller.
first, then set switch 4 ON, followed by switch 1
(16+4+1= 21). See Figure 9. Important: Disconnect all power sources to the
3. Set switch 128 to OFF for all hard-wired SA and FC controller before removing cover and
bus applications. changing the position of any jumper or the
EOL switch on the controller. Failure to
Note: Do not connect a controller with switch 128
disconnect power before changing a jumper
set to ON to an active (hard-wired) SA or FC
or EOL switch position can result in damage
bus. When a controller with switch 128 set to
to the controller and void any warranties.
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.
IOM4711 Input/Output Module Installation Instructions 17
The controller cover is held in place by four plastic latches
Note: The EOL termination rules for SA buses and
that extend from the base and snap into slots on the
FC buses are different. Refer to the MS/TP
inside of the housing cover.
Communications Bus Technical Bulletin
To remove the controller cover: (LIT-12011034) for detailed information
regarding EOL termination rules and EOL
1. Place your fingernails under the two cover lift tabs
switch settings on SA and FC buses.
(Figure 3) on the sides of the housing cover and
gently pry the top of the cover away from the base to 3. If the controller is a terminating device on the FC bus,
release the cover from the two upper latches. set the EOL switch to ON. If the controller is not a
terminating device on the bus, set the EOL switch to
2. Pivot the top of the cover further to release it from the
Off.
lower two latches.
3. Replace the cover by placing it squarely over the When a controller is connected to power with its EOL
base, and then gently and evenly push the cover on switch set to ON, the amber EOL LED on the
to the latches until they snap into the latched position. controller cover is lit.
Figure 10: IOM47 with Cover Removed Showing EOL
Switch and Jumper Positions Input/Output Jumper Settings
Binary Output (BO) Source Power
Selection Jumpers

Risk of Electric Shock: Disconnect the supply power

to the controller before attempting to adjust the Binary
Output Source Power Selection Jumpers. Failure to
disconnect the supply power may result in electric shock.
Mise En Garde: Risque de décharge électrique:
Débrancher l'alimentation de l'controller avant tout
réglage du Binary Output Source Power Selection
Jumpers. Le non-respect de cette précaution risque de
provoquer une décharge électrique.
Setting the End-of-Line (EOL) Switch Important: Do not connect an external power source
Each controller has an EOL switch, which, when set to
to a binary output (BO) when the BO power
ON, sets the controller as a terminating device on the
source jumper is in the internal power (INT)
bus. See Figure 10 for the EOL switch location. The
position. Connecting external power to a
default EOL switch position is Off.
BO that sources internal power can damage
Figure 11: End-of-Line Switch Positions the controller and void any warranties.
The BO source power selection jumpers determine
whether a BO provides internal power (sourced from the
controller) to the output load (INT position) or requires
an external power source (EXT position) for the output
load. Figure 12 shows an example of a controller BOs
and the associated power selection jumpers to the right
of the BOs terminal block.
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.

IOM4711 Input/Output Module Installation Instructions 18

 Figure 12: Example Binary Outputs and the Setting the current loop jumper to the Enabled position
Associated Source Power Jumper Positions (Figure 13) connects an internal 100 ohm resistor across
the UI terminals, which maintains the 4-20 mA current
loop circuit even when power to the controller is
interrupted or off.

Important: Current Loop jumpers must be in the

Disabled (default) position for all UIs that
are not set up to operate as 4-20 mA analog
inputs.
Table 7 identifies the current loop jumpers associated
with each UI on the IOM47 controller.
Table 7: IOM47 UI Inputs and Jumper Labels
Universal Input Jumper Label on Circuit Board
Label
IN1 J20
IN2 J21
UI Current Loop Jumpers IN3 J22
The current loop fail-safe jumpers are on the circuit board IN4 J23
under the controller cover near the UI terminals (Figure IN5 J24
10). When a UI is defined (in the system software) as a
4-20 mA Analog Input and the UI’s current loop jumper IN6 J25
is in the Disabled (default) position (Figure 13), the 4-20
mA current loop circuit opens whenever power to the
controller is interrupted or off. Commissioning the Controllers
Figure 13: Current Loop Jumper Positions 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.

IOM4711 Input/Output Module Installation Instructions 19

Troubleshooting the Controllers
Observe the Status LEDs on the front of the controller and see Table 8 to troubleshoot the controller.
Table 8: Status LEDs and Descriptions of LED States
LED Label LED Color Normal LED Description of LED States
State
POWER Green On Steady 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
FAULT Red Off Steady Off Steady = No Faults
On Steady = Device Fault; no application loaded; Main Code download
required if the controller is in Boot mode.
Blink - 2 Hz = Download or Startup in progress, not ready for normal operation
SA/FC BUS Green Blink - 2 Hz 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
EOL Amber Off (Except on On Steady = EOL switch in ON position
terminating
Off Steady = EOL switch in Off position
devices)

Repair Information
The MS-IOM4711-0U model is 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 9 for controller accessories ordering information.
Table 9: Accessories Ordering Information
Product Code Number Description
PAN-PWRSP-U Transformer, 120/24 VAC, 96 VA, with circuit breaker and 120 VAC outlet, approved for Smoke
Control
NS Series Network Sensors Refer to the NS Series Network Sensors Product Bulletin (LIT-12011574) for specific sensor
model descriptions.

Technical Specifications
Table 10: IOM4711-0U Technical Specifications
Product Code Number MS-IOM4711-0U Input/Output Module
Supply Voltage 24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50/60 Hz, power supply
Class 2 (North America)
Power Consumption 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).
Ambient Conditions 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

IOM4711 Input/Output Module Installation Instructions 20

Table 10: IOM4711-0U Technical Specifications
Addressing DIP switch set; valid controller device addresses 4–127 (Device addresses 0–3 and
128–255 are reserved and not valid addresses.)
Communications Bus 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.
Processor H8SX/166xR Renesas® 32-bit microcontroller
Memory 512 KB Flash Memory and 128 KB Random Access Memory (RAM)
Input and Output Capabilities 6 - Universal Inputs: Defined as 0–10 VDC, 4–20 mA, 0–600k ohm, or Binary Dry
Contact
2 - Binary Inputs: Defined as Dry Contact Maintained or Pulse Counter/Accumulator
Mode
3 - Binary Outputs: Defined as 24 VAC Triac (selectable internal or external source
power)
4 - Configurable Outputs: Defined as 0–10 VDC or 24 VAC/DC Field-Effect
Transistor (FET) BO
2 - Analog Outputs: Defined as 0–10 VDC or 4–20 mA
Analog Input/Analog Output Resolution Input: 16-bit resolution
and Accuracy
Output: 16-bit resolution, +/- 200 mV accuracy in 0-10 VDC applications
Terminations 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
Mounting Horizontal on single 35 mm DIN rail mount (preferred), or screw mount on flat surface
with three integral mounting clips on controller
Housing Enclosure material: ABS and polycarbonate UL94 5VB; Self-extinguishing, Plenum
Rated
Dimensions(Height x Width x Depth) 150 x 190 x 53 mm (5-7/8 x 7-1/2 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.
Weight 0.5 kg (1.1 lb)
Compliance United States: UL Listed, File E107041, CCN PAZX, UL 916, 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 this product is in compliance with the
essential requirements and other relevant provisions of the EMC Directive.
Note: Conducted RF Immunity within EN 61000-6-2 meets performance criteria B.
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)

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.

IOM4711 Input/Output Module Installation Instructions 21

European Single Point of Contact: NA/SA Single Point of Contact: APAC Single Point of Contact:
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IOM4711 Input/Output Module Installation Instructions 22