Johnson Controls MS-IOU4710-0U User manual

IOU4710 Input/Output Module Installation Instructions
MS-IOU4710-0U
Part No. 24-10144-254, Rev. A
Software Release 8.1
Issued March 2018
Application
The IOU47 field controller is part of the Metasys®system
Field Equipment Controller family. This controller expands
the number of points connected to a Network Automation
Engine (NAE), Network Control Engine (NCE), Field
Equipment Controller (FEC), or Advanced Application
Field Equipment Controller (FAC) to monitor and control
a wide variety of HVAC equipment.
The IOU controller operates on an RS-485 BACnet®
MS/TP Bus as BACnet Application Specific Controllers
(B-ASCs) and integrate into Johnson Controls®and
third-party BACnet systems.
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 I/O
can be connected through the SA bus to a host
controller that is using either the BACnet or the
N2 protocol. Only the BACnet protocol is
supported when the I/O is connected directly to
the trunk using the FC bus.
Important: The MS-IOU4710-0U model is used in
Metasys Release 8.1 smoke control
applications and is 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).
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.
Installation
Observe these guidelines when installing a 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
1IOU4710 Input/Output Module Installation Instructions

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.
• Mount the controller in the proper mounting position
(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 Table 8.
• 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.
Observe these additional guidelines when mounting an
IOU47 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
DIN Rail Mount Applications
Mounting the controller horizontal on 35 mm DIN rail is
the preferred mounting method.
To mount an IOU47 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 two bottom mounting clips outward from the
controller to the extended position (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 clips inward (up) to secure
the controller on the DIN rail.
To remove the controller from the DIN rail, pull the
bottom mounting clips out to the extended position
and carefully lift the controller off the DIN rail.
Wall Mount Applications
To mount a controller directly on a wall or other flat
vertical surface:
1. Pull the two bottom mounting clips outward and
ensure they are locked in the extended position as
shown in Figure 2.
2. Mark the mounting hole locations on the wall using
the dimensions in Figure 2 and one of the mount
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).
4. Hold the controller in place, and insert the screws
through the mounting clips and into the holes (or
anchors). Carefully tighten all of the screws.
2IOU4710 Input/Output Module Installation Instructions

Important: Do not overtighten the mounting screws.
Overtightening the screws may damage
the mounting clips.
Figure 2: Back of Controller Showing Extended
Mounting Clips, DIN Rail Channel, and Mounting
Dimensions, mm (in.)
Attaching the Cover
You may attach the cover before or after wiring the IOU
controller.
1. Place the hinge tabs (cover) onto the top of the hinge
slots (base).
Do not fully insert the tabs into the slots. If the tabs
are fully inserted into the slots, the cover hinge may
not allow the cover to close.
2. Close the cover.
3. Tighten the cover screw to secure the cover to the
base.
Figure 3: Attaching the Cover
3IOU4710 Input/Output Module Installation Instructions

Figure 4: IOU4710 Physical Features (Labeled IOM)
Wiring
Observe the following guidelines when wiring a controller:
Risk of Electric Shock: Disconnect the power supply
before making electrical connections to avoid electric
shock.
Mise En Garde: Risque de décharge électrique:
Débrancher l'alimentation avant de réaliser tout
raccordement électrique afin d'éviter tout risque de
décharge électrique.
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
in accordance with local, national, and
regional regulations.
4IOU4710 Input/Output Module Installation Instructions

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).
Terminal Blocks and Bus Ports
See Figure 4 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 2 for more
information about I/O terminal functions, requirements,
and ratings.
SA/FC Bus Terminal Block
An IOU 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 IOU 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 Figure 5. See Table
4for more information.
Figure 5: FC Bus Terminal Block Wiring
When connecting the IOU 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 6. See Table
3for more information.
Figure 6: 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 6) or the cable
shields on the FC bus (Figure 5).
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 4 for more information.
The SA/FC bus port pin assignment is shown in Figure
7.
5IOU4710 Input/Output Module Installation Instructions

Figure 7: Pin Number Assignments for Sensor, SA
Bus and FC Bus Ports on Controllers
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 Figure 8. The middle terminal on the supply
power terminal block is not used. See Table 4 for more
information about the supply terminal block.
Figure 8: 24 VAC Supply Power Terminal Block Wiring
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.
6IOU4710 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 1: Termination Details
Termination DiagramsType of
Input/Output
Type of Field Device
UITemperature Sensor
UIVoltage Input - External
Source
UIVoltage Input - Internal Source
UIVoltage Input (Self-Powered)
UICurrent Input - External
Source (Isolated)
UICurrent Input - Internal Source
(2-wire)
7IOU4710 Input/Output Module Installation Instructions

Table 1: Termination Details
Termination DiagramsType of
Input/Output
Type of Field Device
UICurrent Input - Internal Source
(3 wire)
UICurrent Input - External
Source (in Loop)
UIFeedback from EPP-1000
UI or BIDry Contact (Binary Input)
CO or AO0–10 VDC Output to Actuator
(External Source)
CO or AO0–10 VDC Output to Actuator
(Internal Source)
8IOU4710 Input/Output Module Installation Instructions

Table 1: Termination Details
Termination DiagramsType of
Input/Output
Type of Field Device
CO or AO4–20 mA Output to Actuator
CO or AO4–20 mA Output to Actuator
AOVoltage (Analog Output)
AOAnalog Output (Current)
CO or AO24 VAC Triac Output (Switch
Low, External Source)
CO or AOIncremental Control to
Actuator (Switch Low,
Externally Sourced)
CO or AO24 VAC Triac Output (Switch
High, Externally Sourced)
9IOU4710 Input/Output Module Installation Instructions

Table 1: Termination Details
Termination DiagramsType of
Input/Output
Type of Field Device
CO or AOIncremental Control to
Actuator (Switch High,
Externally Sourced)
BOIncremental Control to
Actuator (Switch Low,
Externally Sourced)
BO24 VAC Binary Output (Switch
Low, Externally Sourced)
BO24 VAC Binary Output (Switch
High, Externally Sourced)
BOIncremental Control to
Actuator (Switch High,
Externally Sourced)
10IOU4710 Input/Output Module Installation Instructions

Table 1: Termination Details
Termination DiagramsType of
Input/Output
Type of Field Device
SA BusNetwork Stat with Phone Jack
(Fixed Address = 199)
SA BusNetwork Stat with Terminals
Addressable
SA BusNetwork Stat with Terminals
(Fixed Address = 199)
Terminal Wiring Guidelines,
Functions, Ratings, and
Requirements
Input and Output Wiring Guidelines
Table 2 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.
Note: 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.
In addition to the wiring guidelines in Table 2, 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.
11IOU4710 Input/Output Module Installation Instructions

Table 2: IOU47 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Determine Wire Size and
Maximum Cable Length1
Function, Ratings, RequirementsTerminal
Label
Terminal Block
Label
Same as (Universal) INn
Note: Use 3-wire cable for
devices that source power from
the +15V terminal.
15 VDC Power Source for active (3-wire) input devices
connected to the Universal INnterminals.
Provides 100 mA total current
+15 VUNIVERSAL
(Inputs)
See Guideline Ain Table 3.
Analog Input - Voltage Mode (0–10 VDC)
10 VDC maximum input voltage
Internal 75k ohm Pull-down
INn
See Guideline Bin Table 3.
Analog Input - Current Mode (4–20 mA)
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 Analog
Input Load Resistor Enable/Disable.
See Guideline Ain Table 3.
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)
See Guideline Ain Table 3.
Binary Input - Dry Contact Maintained Mode
1 second minimum pulse width
Internal 12 V. 15k ohm pull up
Same as (Universal) INn
Universal Input Common for all Universal Input terminals
Note: All Universal ICOMnterminals share a common,
which is isolated from all other commons.
ICOMn
See Guideline Ain Table 3.
Binary Input - Dry Contact Maintained Mode
0.01 second minimum pulse width
Internal 18 V. 3k ohm pull up
INn
BINARY
(Inputs)
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 ICOMnterminals 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.
ICOMn
12IOU4710 Input/Output Module Installation Instructions

Table 2: IOU47 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Determine Wire Size and
Maximum Cable Length1
Function, Ratings, RequirementsTerminal
Label
Terminal Block
Label
See Guideline Cin Table 3.
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.
OUTn
ANALOG
(Outputs)
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.
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.
OCOMn
See Guideline Cin Table 3.
Binary Output - 24 VAC Triac (External Power Source)
Connects OUTnto OCOMnwhen 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
OUTn
BINARY
(Output)
Power Selection
Jumper positioned to
External (EXT) power.
Binary Output Common (for OUTnterminal)
Note: Each Binary Output Common terminal (OCOMn) is
isolated from all other commons, including other Binary
Output Common terminals.
OCOMn
See Guideline Cin Table 3.
Binary Output - 24 VAC Triac (Internal Power Source)
Sources internal 24 VAC power (24~ HOT).
OUTn
BINARY
(Output)
Power Selection
Jumper positioned to
Internal (INT) power.
Binary Output - 24 VAC Triac (Internal Power Source)
Connects OCOMnto 24~ when activated.
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
OCOMn
13IOU4710 Input/Output Module Installation Instructions

Table 2: IOU47 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Determine Wire Size and
Maximum Cable Length1
Function, Ratings, RequirementsTerminal
Label
Terminal Block
Label
See Guideline Ain Table 3.
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.
OUTn
CONFIGURABLE
(Outputs)
See Guideline Cin Table 3.
Binary Output - 24 VAC Triac (External Power Source
only)
Connects OUTnto OCOMnwhen 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
Same as (Configurable) OUTn.
Analog Output Signal Common All Configurable Outputs
(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.
OCOMn
1See Table 3 to determine wire size and cable lengths for cables.
14IOU4710 Input/Output Module Installation Instructions

Cable and Wire Length Guidelines
Table 3 defines cable length guidelines for the various wire sizes that may be used for wiring low-voltage (<30 V)
input and outputs.
Table 3: Cable Length Guidelines for Recommended Wire Sizes for Low-Voltage (<30 V) Inputs and Outputs
AssumptionsMaximum Cable
Length and Type
Wire Size/Gauge and TypeGuideline
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.
457 m (1,500 ft) twisted
wire
1.0 mm (18 AWG) stranded copperA
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
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.
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
N/A
See Figure 9 to determine
cable length. Use twisted
wire cable.
See Figure 9 to select wire size/gauge.
Use stranded copper wire.
C
Maximum Cable Length versus Load Current
Use Figure 9 to estimate the maximum cable length relative to the wire size and the load current (in mA) when wiring
inputs and outputs.
Note: Figure 9 applies to low-voltage (<30 V) inputs and outputs only.
Figure 9: Maximum Wire Length for Low-Voltage (<30V) Inputs and Outputs by Current and Wire Size
15IOU4710 Input/Output Module Installation Instructions

SA/FC Bus and Supply Power
Wiring Guidelines
Table 4 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 4, 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 4: Communications Bus and Supply Power Terminal Blocks, Functions, Ratings, Requirements, and Cables
Recommended Cable Type1
Function, Electrical Ratings/RequirementsTerminal
Labels
Terminal
Block/Port Label
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.
FC or SA Bus Communications+
-
FC BUS2
or
SA BUS2Signal Reference (Common) for FC or SA Bus
communications
COM
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 IOU 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.
SHLD
or
SAPWR
24 AWG 3-pair CAT 3 Cable <30.5 m (100
ft)
RJ-12 6-Position Modular Connector provides:
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.)
SA/FC BUS2
(Port)
0.8 mm to 1.0 mm
(18 AWG) 2-wire
24 VAC Power Supply - Hot
Supplies 20–30 VAC (Nominal 24 VAC)
HOT24~
24 VAC Power Supply - Common
(Isolated from all other Common terminals on controller.)
COM
1See Table 3 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).
16IOU4710 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 4).
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 (Figure 10). 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 10: 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 5 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). See Figure 10.
3. Set switch 128 to OFF.
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 5 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 5: SA/FC Bus Device Address Descriptions
Use on DescriptionDevice
Address
Reserved for FC Bus Supervisory Controller
(not for use on controllers).
0
(Switch
128 Off)
Reserved for peripheral devices (not for use
on controllers).
1 to 3
(Switch
128 Off)
Used for MS/TP master devices controllers)
that are hardwired to an SA Bus or FC Bus.
4 to 127
(Switch
128 Off)
Reserved addresses for wired slave devices
(not for use on controllers).
Note: Metasys field controllers ship with switch
128 ON and the remaining address switches
off rendering the controllers wired slave
devices, which do not operate on MS/TP
buses.
0 to 3
(Switch
128 ON)
Valid for MS/TP Master controllers on wireless
FC Buses only.
Note: Do not connect a controller with switch
128 ON to an active (hard-wired) SA or FC
Bus. When a controller with switch 128 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 to 127
(Switch
128 ON)
17IOU4710 Input/Output Module Installation Instructions

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. The default EOL switch position is Off.
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.
When a controller is connected to power with its EOL
switch set to ON, the amber EOL LED on the
controller cover is lit.
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.
Important: Do not connect an external power source
to a binary output (BO) when the BO power
source jumper is in the internal power (INT)
position. Connecting external power to a
BO that sources internal power can damage
the controller and void any warranties.
The Binary Output jumpers (OUT1 through OUT3) are
located on the circuit board in the mounting base near
the binary outputs. These jumpers select whether the
output provides internal power to the load (INT) or
requires external power (EXT). See Figure 12.
Figure 12: Binary Output Jumper Positions
When set to the INT position, the IOU controller is the
power source for the Binary Output and both sides of the
load can be wired directly to the OUTx and COMx
terminals.
Setting the jumper to the EXT position isolates the Binary
Outputs and power must come from one or more external
sources. Do not wire the load directly to the OUTx and
COMx terminals. Wire one side of the load to the source
and the other side of the load to the OUTx terminal. Wire
the other side of the external power source to the COMx
terminal.
Analog Input Load Resistor
Enable/Disable
The Analog Input Resistor Enable/Disable jumpers (J10
through J15) are located on the circuit board in the
controller cover. These jumpers can permanently connect
the internal 4-20 mA, 100 ohm load resistor to the input
terminals. There is one jumper for each of the Universal
Inputs. See Figure 13.
18IOU4710 Input/Output Module Installation Instructions

Figure 13: Analog Input Load Resistor Jumper
Positions
Software configuration of the Universal Input normally
selects the enabling or disabling of the analog input load
resistor. In cases when the analog input load resistor
must be left connected even when power is OFF to the
controller, set this jumper to the ENABLE position.
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.
Commissioning the Controllers
Commission IOU controllers with the Controller
Configuration Tool (CCT) software. Refer to the Controller
Tool Help (LIT-12011147) for detailed information on
commissioning controllers.
Replacing the Fuse
If you connect power to the controller, but it does not
function, you may need to replace the fuse. Use the
following procedure to replace the fuse:
1. Remove power from the controller.
2. Loosen the cover screw and remove the cover.
3. Remove the fuse (Figure 14).
4. Install a new replacement fuse.
5. Replace the cover (Attaching the Cover).
6. Reconnect power to the controller.
Figure 14: Location of Removable Fuse
Repair Information
The MS-IOU4710-0U 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.
19IOU4710 Input/Output Module Installation Instructions

Troubleshooting the Controllers
Observe the Status LEDs on the front of the controller and see Table 6 to troubleshoot the controller.
Table 6: Status LEDs and Descriptions of LED States
Description of LED StatesNormal LED
State
LED ColorLED Label
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
On SteadyGreenPOWER
Off Steady = No Faults
On Steady = Device Fault; no application loaded; Main Code download
required, if controller is in Boot mode, or a firmware mismatch exists between
the controller and the ZFR1811 Wireless Field Bus Router.
Blink - 2 Hz = Download or Startup in progress, not ready for normal operation
Off SteadyRedFAULT
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
Blink - 2 HzGreenSA/FC BUS
On Steady = EOL switch in ON position
Off Steady = EOL switch in Off position
Off (Except on
terminating
devices)
AmberEOL
Accessories
See Table 7 for controller accessories ordering information.
Table 7: Accessories Ordering Information
DescriptionProduct Code Number
Transformer, 120/24 VAC, 96 VA, with circuit breaker and 120 VAC outlet, approved for Smoke
Control
PAN-PWRSP-U
Refer to the NS Series Network Sensors Product Bulletin (LIT-12011574) for specific sensor
model descriptions.
NS Series Network Sensors
Technical Specifications
Table 8: IOU4710-0U Technical Specifications
MS-IOU4710-0U Input/Output Module, model listed for Smoke Control, consisting
of:
Product Code Number
24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50/60 Hz, power supply
Class 2 (North America)
Supply Voltage
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).
Power Consumption
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
Ambient Conditions
DIP switch set; valid controller device addresses 4–127 (Device addresses 0–3 and
128–255 are reserved and not valid addresses.)
Addressing
20IOU4710 Input/Output Module Installation Instructions