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Application
The MS-IOM3723 input/output expansion module is a part
of the Metasys
system Field Equipment Controller family.
®
Input/Output expansion modules (IOMs) expand the
number of input/output points connected to a Network
Automation Engine (NAE), Network Control Engine (NCE),
Advanced Application Field Equipment Controller (FAC),
Field Equipment Controller (FEC), or Variable Air Volume
Modular Assembly (VMA) to monitor and control a wide
variety of HVAC equipment.
Note: The IOM3723 model is only available in
certain regions. Contact your local Johnson Controls
representative for more information.
IOM expansion modules operate on an RS-485 BACnet
MS/TP Bus and integrate into Johnson Controls
third-party BACnet systems. IOMs
Note: With Release 10.1 of the Controller
Configuration Tool (CCT), VMAs, FECs, and FACs
can be configured to communicate using either
the BACnet MS/TP or the N2 field bus networking
protocol. The operation of the IOM is not affected by
the selection of the BACnet MS/TP or the N2 protocol
in the host controller, when the IOM is connected to
the host controller using the SA bus.
North American emissions compliance
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.
IOM3723 Input/Output Module Installation
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.
Installation
Observe the following guidelines when installing an
expansion module:
• To minimize vibration and shock damage, transport the
®
• Verify that all parts shipped with the expansion module.
and
®
• Do not drop the expansion module or subject it to
Parts included
• One expansion module with removable terminal blocks
• One installation instructions sheet
Materials and special tools needed
• Three fasteners appropriate for the mounting surface
• One 20 cm (8 in.) or longer piece of 35 mm DIN rail and
• Small straight-blade screwdriver for securing wires in
Physical features
The following figure displays the physical features of an
IOM, and the accompanying table provides a description
of the physical features and a reference to further
information where required.
expansion module in the original container.
physical shock.
(Power and SA/FC bus are removable)
(M4 screws or #8 screws)
appropriate hardware for DIN rail mount
the terminal blocks
*24101431124D*
Guide
Part No. 24-10143-1124 Rev. D
2019-10-18
(barcode for factory use only)
MS-IOM3723
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Table of Contents
Related Manuals for Johnson Controls MS-IOM3723
Summary of Contents for Johnson Controls MS-IOM3723
- Page 1 Part No. 24-10143-1124 Rev. D 2019-10-18 Application Canada This Class (A) digital apparatus meets all the requirements The MS-IOM3723 input/output expansion module is a part of the Canadian Interference-Causing Equipment of the Metasys system Field Equipment Controller family. ® Regulations.
- Page 2 Figure 1: IOM3723 physical features Table 1: IOM3723 features callout numbers and • Mount the expansion module in the proper mounting position (Figure 2). descriptions • Mount the expansion module on a hard, even surface Callo whenever possible in wall-mount applications. Physical features: description and references •...
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Page 3: Wall Mount Applications
Figure 2: Mounting positions Pull the two bottom mounting clips outward from the expansion module to the extended position (Figure 3). Hang the expansion module on the DIN rail by the hooks at the top of the (DIN rail) channel on the back of the expansion module (Figure 3), and position the expansion module snugly against the DIN rail. - Page 4 Input terminal blocks Avertissement The IOM3723 has inputs only (no outputs). The inputs are located on both the top and bottom of the expansion module. See Table 2 for more information about I/O Risque de décharge électrique: terminal functions, requirements, and ratings. Débrancher ou isoler toute alimentation avant de SA/FC bus terminal block réaliser un branchement électrique.
- Page 5 Figure 5: SA bus terminal block wiring Figure 6: 24 VAC supply power terminal block wiring Note: The supply power wire colors may be different on transformers from other manufacturers. Refer to the transformer manufacturer’s instructions and the Note: The SA PWR/SHLD terminal does not supply 15 project installation drawings for wiring details.
- Page 6 I/O terminal blocks, ratings, and requirements Table 2: IOM3723 terminal blocks, functions, ratings, requirements, and cables Terminal block Determine wire size and Terminal label Function, ratings, requirements label maximum cable length Binary Input - Dry Contact Maintained Mode 0.01 second minimum pulse width Internal 16 V, 10K ohm pull Binary Input - Pulse Counter/Accumulator Mode 0.01 second minimum pulse width (50 Hz at 50% duty cycle)
- Page 7 Termination details Note: See Table 3 to determine wire size and cable lengths for cables. A set of Johnson Controls termination diagrams provides Note: The SA Bus and FC Bus wiring details for wiring inputs and outputs to the controllers.
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Page 8: Setup And Adjustments
Figure 8: Device address DIP switch block set to The following table describes the FC bus and SA bus address 21 device addresses for Johnson Controls MS/TP communica- tions bus applications. Table 6: SA/FC bus device address descriptions Device Address Use on Descriptions... - Page 9 Table 7: SA/FC bus device address descriptions Figure 9: End-of-Line switch positions Device Use on description address Reserved addresses for wired subordinate devices (not for use on controllers). 0 to 3 Note: Controllers ship with switch 128 ON (Switch 128 and the remaining address switches off rendering the controllers wired subordinate devices, which do not operate on MS/TP buses.
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Page 10: Troubleshooting
Troubleshooting LED status and states Observe the Status LEDs on the front of the expansion module. Table 8 provides LED status indicator information for troubleshooting the expansion module. Table 8: Status LEDs and description of LED states LED label LED color Normal LED state Description of LED states Off Steady = No Supply Power or the expansion module’s polyswitch/resettable fuse is open. -
Page 11: Technical Specifications
Canada: UL Listed, File E107041, CCN PAZX7 CAN/CSA C22.2 No.205, Signal Equipment Industry Canada Compliant, ICES-003 Europe: Johnson Controls declares that this product is in compliance with the essential requirements and other relevant provisions of the EMC Directive. Australia and New Zealand: RCM Mark, Australia/NZ Emissions Compliant... - Page 12 DISTRICT WUXI JIANGSU PROVINCE 214028 CHINA For more contact information, refer to www.johnsoncontrols.com/locations. © 2019 Johnson Controls. All rights reserved. All specifications and other information shown were current as of document revision and are subject to change without notice. www.johnsoncontrols.com...
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