User's Manual Pub. 0300231 01 Rev. A
1794 Isolated
Universal Input Module
Catalog Number: 1794sc-IF8IU
ii |
Flex™ IO Isolated Universal Input Module |
Important Notes
1.Please read all the information in this owner’s guide before installing the product.
2.The information in this owner's guide applies to hardware Series A and firmware version 1.0 or later.
3.This guide assumes that the reader has a full working knowledge of the relevant processor.
Notice
The products and services described in this owner's guide are useful in a wide variety of applications. Therefore, the user and others responsible for applying the products and services described herein are responsible for determining their acceptability for each application. While efforts have been made to provide accurate information within this owner's guide, Spectrum Controls assumes no responsibility for the accuracy, completeness, or usefulness of the information herein.
Under no circumstances will Spectrum Controls be responsible or liable for any damages or losses, including indirect or consequential damages or losses, arising out of either the use of any information within this owner's guide or the use of any product or service referenced herein.
No patent liability is assumed by Spectrum Controls with respect to the use of any of the information, products, circuits, programming, or services referenced herein.
The information in this owner's guide is subject to change without notice.
Limited Warranty
Spectrum Controls warrants that its products are free from defects in material and workmanship under normal use and service, as described in Spectrum Controls literature covering this product, for a period of 1 year. The obligations of Spectrum Controls under this warranty are limited to replacing or repairing, at its option, at its factory or facility, any product which shall, in the applicable period after shipment, be returned to the Spectrum Controls facility, transportation charges prepaid, and which after examination is determined, to the satisfaction of Spectrum Controls, to be thus defective.
This warranty shall not apply to any such equipment which shall have been repaired or altered except by Spectrum Controls or which shall have been subject to misuse, neglect, or accident. In no case shall the liability of Spectrum Controls exceed the purchase price. The aforementioned provisions do not extend the original warranty period of any product which has either been repaired or replaced by Spectrum Controls.
User's Manual Pub. 0300231 01 Rev. A
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iii |
Table of Contents |
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IMPORTANT NOTES............................................................................................................................................ |
II |
NOTICE .............................................................................................................................................................. |
II |
LIMITED WARRANTY .......................................................................................................................................... |
II |
CHAPTER 1 MODULE OVERVIEW ..................................................................................................................... |
1 1 |
SECTION 1.1 GENERAL DESCRIPTION .............................................................................................................................. |
1 1 |
SECTION 1.2 INPUT TYPES AND RANGES ......................................................................................................................... |
1 1 |
SECTION 1.3 DATA FORMATS ....................................................................................................................................... |
1 2 |
SECTION 1.4 FILTER FREQUENCIES ................................................................................................................................ |
1 2 |
SECTION 1.5 HARDWARE FEATURES .............................................................................................................................. |
1 2 |
SECTION 1.6 SYSTEM OVERVIEW ................................................................................................................................... |
1 3 |
1.6.1 Module Power up ..................................................................................................................................... |
1 3 |
SECTION 1.7 MODULE OPERATION ................................................................................................................................ |
1 4 |
CHAPTER 2 INSTALLATION AND WIRING.......................................................................................................... |
2 1 |
SECTION 2.1 COMPLIANCE TO EUROPEAN UNION DIRECTIVES............................................................................................. |
2 1 |
2.1.1 EMC Directive............................................................................................................................................ |
2 1 |
2.1.2 Low Voltage Directive ............................................................................................................................... |
2 1 |
SECTION 2.2 GENERAL CONSIDERATIONS ........................................................................................................................ |
2 2 |
2.2.1 Hazardous Location Considerations.......................................................................................................... |
2 2 |
2.2.2 Prevent Electrostatic Discharge ................................................................................................................ |
2 2 |
2.2.3 Remove Power .......................................................................................................................................... |
2 3 |
2.2.4 Selecting a Location .................................................................................................................................. |
2 3 |
SECTION 2.3 POWER REQUIREMENTS ............................................................................................................................ |
2 3 |
2.3.1 Wiring the Terminal Base Units (1794 TB3G shown)................................................................................ |
2 4 |
SECTION 2.4 INSTALLING THE MODULE........................................................................................................................... |
2 5 |
2.4.1 Mounting the Terminal Base Unit on a DIN Rail ....................................................................................... |
2 5 |
2.4.2 Panel/Wall Mounting ............................................................................................................................... |
2 7 |
2.4.3 Mounting the IF8IU Module on the Terminal Base Unit ........................................................................... |
2 9 |
SECTION 2.5 FIELD WIRING CONNECTIONS.................................................................................................................... |
2 10 |
2.5.1 Field Wiring using a 1794 TB3G and TB3GS Terminal Base.................................................................... |
2 10 |
SECTION 2.6 MODULE INDICATORS.............................................................................................................................. |
2 16 |
CHAPTER 3 CONFIGURING THE 1794SC IF8IU USING RSLOGIX 5000.................................................................. |
3 1 |
SECTION 3.1 THINGS YOU SHOULD KNOW ...................................................................................................................... |
3 1 |
SECTION 3.2 MODULE MEMORY MAP ........................................................................................................................... |
3 1 |
SECTION 3.3 CONFIGURE GENERIC PROFILE..................................................................................................................... |
3 2 |
3.3.1 Add a Local Ethernet Bridge Module ........................................................................................................ |
3 3 |
3.3.2 Add a Remote Ethernet Flex Adapter........................................................................................................ |
3 4 |
3.3.3 Add the Generic Flex Module.................................................................................................................... |
3 6 |
SECTION 3.4 MODULE CONFIGURATION......................................................................................................................... |
3 7 |
3.4.1 Fault Mode [Word 0 (Bits 2,3,4,5,10,11,12,13)] ....................................................................................... |
3 9 |
3.4.2 Input Type [Words 1 – 8 (Bits 0 to 4)] ..................................................................................................... |
3 10 |
3.4.3 Input Filter [Words 1 – 8 (Bits 5 to 7)...................................................................................................... |
3 10 |
3.4.4 Data Format [Words 1 – 8 (Bits 8 to 10)................................................................................................. |
3 11 |
3.4.5 Open Circuit Mode [Words 1 – 8 (Bits 12 & 13)]..................................................................................... |
3 12 |
3.4.6 Disable CJC [Words 1 – 8 (Bit 14)]........................................................................................................... |
3 12 |
3.4.7 Temperature Units [Words 1 – 8 (Bit 15)]............................................................................................... |
3 12 |
3.4.8 Low Alarm Threshold [Words 9,12,15,18,21,24,27,30] .......................................................................... |
3 13 |
3.4.9 High Alarm Threshold [Words 10,13,16,19,22,25,28,31] ....................................................................... |
3 13 |
3.4.10 User Alarm Deadband [Words 11,14,17,20,23,26,29,32]..................................................................... |
3 13 |
3.4.11 Calibration Offset [Words 33 to 40]...................................................................................................... |
3 13 |
User's Manual Pub. 0300231 01 Rev. A
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Flex™ IO Isolated Universal Input Module |
3.4.12 CJC Offset [Words 41 to 48] .................................................................................................................. |
3 14 |
SECTION 3.5 READ INPUT & STATUS DATA.................................................................................................................... |
3 14 |
3.5.1 Input Data [Words 0 to 7]....................................................................................................................... |
3 16 |
3.5.2 UnderRange Alarms [Word 8 (Bits 0 to 7)] ............................................................................................. |
3 16 |
3.5.3 OverRange Alarm [Word 8 (Bits 8 to 15)] ............................................................................................... |
3 16 |
3.5.4 User Low Alarm [Word 9 (Bits 0 to 7)] .................................................................................................... |
3 16 |
3.5.5 User High Alarm [Word 9 (Bits 8 to 15)] ................................................................................................. |
3 16 |
3.5.6 Open Circuit Alarm [Word 10 (Bits 0 to 7)] ............................................................................................. |
3 17 |
3.5.7 CJC Alarm [Word 10 (Bits 8 & 9)] ............................................................................................................ |
3 17 |
3.5.8 Diagnostics [Word 11 (Bits 0 to 7)] ......................................................................................................... |
3 17 |
APPENDIX A MODULE SPECIFICATIONS............................................................................................................ |
A 1 |
User's Manual Pub. 0300231 01 Rev. A
v
PREFACE
Read this preface to familiarize yourself with the rest of the manual. This preface covers the following topics:
•Who should use this manual
•How to use this manual
•Related publications
•Conventions used in this manual
•Rockwell Automation support
Who Should Use This Manual
Use this manual if you are responsible for designing, installing, programming, or troubleshooting control systems that use Allen-Bradley I/O and/or compatible controllers, such as MicroLogix, CompactLogix, ControlLogix, SLC 500 or PLC 5.
How to Use This Manual
As much as possible, we organized this manual to explain, in a task-by-task manner, how to install, configure, program, operate and troubleshoot a control system using the 1794sc-IF8IU.
Related Documentation
The table below provides a listing of publications that contain important information about Allen-Bradley PLC systems.
Document Title |
Document Number |
1794 Flex IO Product Data |
1794-2.1 |
CompactLogix System Overview |
1769-SO001A-EN-P |
ControlLogix System User Manual |
1756-6.5.13-SEP99 |
ControlNet Modules in Logix5000 Control Systems |
CNET-UM001C-EN-P |
User Manual |
|
EtherNet/IP Modules in Logix5000 Control Systems |
ENET-UM001G-EN-P |
User Manual |
|
Allen-Bradley Programmable Controller |
1770-4.1 |
Grounding and Wiring Guidelines |
|
If you would like a manual, you can:
•Download a free electronic version from the internet at www.theautomationbookstore.com
•Purchase a printed manual by:
oContacting your local distributor or Rockwell Automation representative
o Visiting www.theautomationbookstore.com and placing your order
oCalling 1.800.963.9548 (USA/Canada) or 001.330.725.1574 (Outside USA/Canada)
User's Manual Pub. 0300231 01 Rev. A
vi |
Flex™ IO Isolated Universal Input Module |
Conventions
Used in This
Manual
The following conventions are used throughout this manual:
•Bulleted lists (like this one) provide information not procedural steps.
•Numbered lists provide sequential steps or hierarchical information.
•Italic type is used for emphasis
•Bold type identifies headings and sub-headings
!
• Attention Are used to identify critical information to the reader
User's Manual Pub. 0300231 01 Rev. A
Chapter 1
Module Overview
This chapter describes the 1794sc-IF8IU Isolated Universal input module and explains how the module reads current, voltage, RTD, resistance and thermocouple/millivolt analog input data. Included is information about:
•General description
•Input types and ranges
•Data Formats and filter frequencies
•Hardware Features
•System overview and module operation
•Auto-calibration
Section 1.1 General Description
The isolated universal input module supports current, voltage, RTD, resistance, thermocouple and millivolt type inputs. The module digitally converts and stores analog data from any combination mentioned above. Each input channel is individually configured via software for a specific input device, data format, filter frequency, and provides open-circuit, over-range, under-range detection and indication.
Section 1.2
Input Types
and Ranges
The tables below list the input types and their associated ranges.
Input Type |
Range |
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B Type Thermocouple |
300 to 1820 ˚C |
(572 to 3308 ˚F) |
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C Type Thermocouple |
0 to 2315 ˚C |
(32 to 4199 ˚F) |
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E Type Thermocouple |
-270 to 1000 ˚C |
(-454 to 1832 ˚F) |
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J Type Thermocouple |
-210 to 1200 ˚C |
(-346 to 2192 ˚F) |
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K Type Thermocouple |
-270 to 1370 ˚C |
(-454 to 2498 ˚F) |
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N Type Thermocouple |
-210 to 1300 ˚C |
(-346 to 2372 ˚F) |
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R Type Thermocouple |
0 to 1768 ˚C |
(32 to 3214 ˚F) |
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S Type Thermocouple |
0 to 1768 ˚C |
(32 to 3214 ˚F) |
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T Type Thermocouple |
-270 to 400 ˚C |
(-270 to 752 ˚F) |
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100 |
Ω Pt α 0.385 |
-200 to 850 ˚C |
(-328 to 1562 ˚F) |
200 |
Ω Pt α 0.385 |
-200 to 850 ˚C |
(-328 to 1562 ˚F) |
500 |
Ω Pt α 0.385 |
-200 to 850 ˚C |
(-328 to 1562 ˚F) |
1000 Ω Pt α 0.385 |
-200 to 850 ˚C |
(-328 to 1562 ˚F) |
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100 |
Ω Pt α 0.3916 |
-200 to 630 ˚C |
(-328 to 1166 ˚F) |
200 |
Ω Pt α 0.3916 |
-200 to 630 ˚C |
(-328 to 1166 ˚F) |
500 |
Ω Pt α 0.3916 |
-200 to 630 ˚C |
(-328 to 1166 ˚F) |
1000 Ω Pt α 0.3916 |
-200 to 630 ˚C |
(-328 to 1166 ˚F) |
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10 Ω Cu α 0.426 |
-100 to 260 ˚C |
(-148 to 500 ˚F) |
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100 |
Ω Ni α 0.618 |
-100 to 260 ˚C |
(-148 to 500 ˚F) |
User's Manual Pub. 0300231 01 Rev. A
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Flex™ IO Isolated Universal Input Module |
Input Type |
Range |
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120 Ω Ni α 0.672 |
-80 to 260 ˚C |
(-112 to 500 ˚F) |
604 Ω NiFe α 0.518 |
-100 to 200 ˚C |
(-148 to 392 ˚F) |
Resistance |
0 to 150 Ω |
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0 to 1000 Ω |
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0 to 3000 Ω |
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+/- 50 mV |
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+/- 100 mV |
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Voltage |
0 to 5V |
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1 to 5V |
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+/- 10V |
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0 to 10V |
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Current |
4 to 20 mA |
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0 to 20 mA |
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Section 1.3
Data Formats
For each module the data can be configured for:
•Engineering units x 1
•Engineering units x 10
•Scaled-for-PID
•Percent of full-scale
•Raw/proportional data
•CJC Engineering Units
•CJC scaled-for-PID
•CJC percent of full range
Section 1.4 Filter Frequencies
The module uses a digital filter that provides high frequency noise rejection for each input signal. The filter for each channel is programmable allowing you to select from six different filter frequencies:
•4.17 Hz
•10 Hz
•16.7 Hz
•19.6 Hz
•62 Hz
•470 Hz
Section 1.5
Hardware
Features
Each module requires a terminal base unit. Terminal base units are connected together to form the backplane for the system. Each base unit contains terminals for field terminations. Field terminations are wired as differential inputs with the exception of
User's Manual Pub. 0300231 01 Rev. A
Chapter 1: Module Overview |
1-3 |
RTD and resistance type inputs. Two cold junction compensation (CJC) sensors can be added to the terminal base unit to enable accurate readings when using thermocouple input types. Each CJC sensor compensates for offset voltages introduced into the input signal as a result of the cold-junction where the thermocouple wires come into contact with the base unit. Module configuration is accomplished using the controller’s programming software. In addition, some controllers support configuration via the user program. In either case, the module configuration is stored in the memory of the controller. Refer to your controller’s user manual for more information. The illustration below shows the module’s hardware features.
Figure 1-1
1
2
4 |
3 |
Item Description
1Module Catalog Number
2Module key-switch position
3Removable label
4Power/Status LED
Section 1.6 System Overview
The module communicates to the controller through the base unit bus interface. The module also receives 5 and 24V dc power through the bus interface.
Note: An external power supply is required for all 2-wire transmitters.
1.6.1 Module Power-up
At power-up, the module performs a check of its internal circuits, memory and basic functions. After power-up checks are complete, the module waits for valid channel configuration data. If an invalid configuration is detected, the module generates a configuration error. Once a channel is properly configured and enabled, it continuously converts the input data to a digital value within the currently selected data range. Each time a channel is read by the input module, that data value is tested by the module for an over-range, under-range, or open-circuit condition. If such a condition is detected, a unique bit is set in the channel status word. The channel status word is described in the Input Data File in Chapter 3. Using the module image table, the controller reads the two’s complement binary converted input data from the module. This typically occurs at the end of the program scan or when commanded by the control program. If the controller and the module determine that the data transfer has been made without error, the data is made available to the control program.
User's Manual Pub. 0300231 01 Rev. A
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Flex™ IO Isolated Universal Input Module |
Section 1.7 Module Operation
The module measures each analog signal using a dedicated A/D converter for each channel. The converter reads the signal and converts it as required for the type of input selected. If thermocouples are being utilized, the module continuously samples each CJC sensor and compensates for temperature changes at the terminal base cold junction, between the thermocouple wire and the input terminal. See the block diagram below.
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Isolation |
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Barrier |
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8 of 8 |
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1 of 8 |
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1794 FLEX |
8 Channels & |
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Backplane |
Terminal Base Unit |
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24VDC PWR |
Signal |
MUX |
ΣΔ ADC |
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MICRO- |
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COMMS |
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+ FLTR |
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CNTRLR |
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Conditioning |
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Isolated PWR Supply
24 VDC
The module is designed to support up to 8 isolated channels of RTD, resistance, voltage, current, or thermocouple.
Thermocouple measurements utilize two cold junction compensation sensors placed at two different locations on the terminal base unit. The location of each CJC sensor was chosen to calculate the overall CJC error accurately for each channel. Thermocouple support includes types J, K, T, E, R, S, B, N, and C. In thermocouple mode the 1794scIF8IU will measure thermocouple and CJC voltages and convert the results to a linearized temperature reading.
RTD support includes types Pt 385, Pt 3916, Ni 618, Ni 672, Cu 426, and NiFe 518. In RTD and resistance mode the module will inject a constant current through the RTD or resistor, measure the voltage across the resistance and convert to a linearized temperature or resistance reading. The IFIU supports 2 and 3 wired RTD inputs.
When configured for current or voltage type inputs, the module converts the analog values directly into digital counts.
User's Manual Pub. 0300231 01 Rev. A
Chapter 2
Installation and Wiring
This chapter will cover:
•Compliance to European union directives
•General considerations
•Power requirements
•Installing the module
•Field wiring connections
Section 2.1 Compliance to European Union Directives
This product is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives.
2.1.1 EMC Directive
The 1794sc-IF8IU module is tested to meet Council Directive 89/336/EEC Electromagnetic Compatibility (EMC) and the following standards, in whole or in part, documented in a technical construction file:
•EN 61000-6-4EMC – Generic Emission Standard, Part 2 - Industrial Environment
•EN 61000-6-2EMC – Generic Immunity Standard, Part 2 - Industrial Environment
This product is intended for use in an industrial environment.
2.1.2 Low Voltage Directive
This product is tested to meet Council Directive 2006/99/EC Low Voltage, by applying the safety requirements of EN 61131-2Programmable Controllers, Part 2 – Equipment Requirements and Tests. For specific information required by EN61131-2, see the appropriate sections in this publication, as well as the following Allen-Bradley publications:
•Industrial Automation, Wiring and Grounding Guidelines for Noise Immunity, publication 1770-4.1
•Automation Systems Catalog, publication B113
User's Manual Pub. 0300231 01 Rev. A
2-2 |
Flex™ IO Isolated Universal Input Module |
Section 2.2 General Considerations
Flex I/O is suitable for use in an industrial environment when installed in accordance with these instructions. Specifically, this equipment is intended for use in clean, dry environments Pollution degree 21 and to circuits not exceeding Over Voltage Category II2(IEC 60664-1)3.
2.2.1 Hazardous Location Considerations
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or nonhazardous locations only. The following WARNING statement applies to use in hazardous locations.
EXPLOSION HAZARD
!• Substitution of components may impair suitability for Class I,
Division 2.
Attention |
• Do not replace components or disconnect equipment unless |
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power has been switched off or the area is known to be non- |
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hazardous. |
•Do not connect or disconnect components unless power has been switched off or the area is known to be non-hazardous.
•This product must be installed in an enclosure.
•All wiring must comply with N.E.C. article 501-4(b).
2.2.2Prevent Electrostatic Discharge
!
Attention
Electrostatic discharge can damage integrated circuits or semiconductors if you touch analog I/O module bus connector pins or the terminal block on the input module. Follow these guidelines when you handle the module:
•Touch a grounded object to discharge static potential.
•Wear an approved wrist-strap grounding device.
•Do not touch the bus connector or connector pins.
•Do not touch circuit components inside the module.
•If available, use a static-safe work station.
•When it is not in use, keep the module in its static-shield bag.
1Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that occasionally a temporary conductivity caused by condensation shall be expected.
2Over Voltage Category II is the load level section of the electrical distribution system. At this level transient voltages are controlled and do not exceed the impulse voltage capability of the product’s insulation.
3Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC) designations.
User's Manual Pub. 0300231 01 Rev. A
Chapter 2: Installation and Wiring |
2-3 |
2.2.3 Remove Power
!
Attention
Remove power before removing or inserting this module. When you remove or insert a module with power applied, an electrical arc may occur. An electrical arc can cause personal injury or property damage by:
•Sending an erroneous signal to your system’s field devices, causing unintended machine motion
•Causing an explosion in a hazardous environment
Electrical arcing causes excessive wear to contacts on both the module and its mating connector and may lead to premature failure.
2.2.4 Selecting a Location
Reducing Noise
Most applications require installation in an industrial enclosure to reduce the effects of electrical interference. Analog inputs are highly susceptible to electrical noise. Electrical noise coupled to the analog inputs will reduce the performance (accuracy) of the module. Group your modules to minimize adverse effects from radiated electrical noise and heat. Consider the following conditions when selecting a location for the analog module. Position the module:
•Away from sources of electrical noise such as hard-contact switches, relays, and AC motor drives
•Away from modules which generate significant radiated heat, such as the 1794OB32. Refer to the module’s heat dissipation specification.
In addition, route shielded, twisted-pair analog input wiring away from any high voltage I/O wiring.
Section 2.3 Power Requirements
The module receives power through the bus interface from the +5V dc/+24V dc system power supply. The maximum current drawn by the module is shown in the table below.
5 VDC |
24 VDC |
80 mA |
240 mA |
The wiring of the terminal base unit is determined by the current draw through the terminal base. Make certain that the current draw does not exceed 10A.
Total current draw through the terminal base unit is limited to 10A.
!Separate power connections may be necessary.
Attention
Methods of wiring the terminal base units are shown in the illustration below.
User's Manual Pub. 0300231 01 Rev. A
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Flex™ IO Isolated Universal Input Module |
2.3.1 Wiring the Terminal Base Units (1794-TB3G shown)
Do not daisy chain power or ground from the terminal base unit to any
!ac or dc digital module terminal base unit.
Attention
Daisy-chaining
Power |
IF8u |
IF8u |
Frequency Input |
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Module |
Module |
Module |
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24 VDC |
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Note: All modules must be frequency or IF8IU modules for this configuration.
Wiring when total current draw is less than 10A
Individual
Power
Digital Input |
IF8u |
Digital Input |
Module |
Module |
Module |
24 VDC
24 VDC
24 VDC
Note: Use this configuration if using any “noisy” dc digital I/O modules in your system.
IF8IU module wiring separate from digital wiring
User's Manual Pub. 0300231 01 Rev. A
Chapter 2: Installation and Wiring |
2-5 |
Wiring when total current draw is greater than 10A
Combination
Power |
Frequency Input |
IF8u |
Frequency Input |
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Module |
Module |
Module |
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24 VDC |
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24 VDC |
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Note: All modules powered by the same power supply must be frequency or IF8IU modules for this configuration.
Total current draw through any base unit must not be greater than 10A
Section 2.4
Installing the
Module
Installation of the analog module consists of:
•Mounting the terminal base unit
•Installing the IF8IU module into the terminal base unit
•Installing the connecting wiring to the terminal base unit
If you are installing your module into a terminal base unit that is already installed, proceed to “Mounting the IF8IU Module on the Terminal Base Unit” on page 2-9.
2.4.1 Mounting the Terminal Base Unit on a DIN Rail
Do not remove or replace a terminal base unit when power is applied.
!Interruption of the flexbus can result in unintended operation or machine motion.
Attention
1)Remove the cover plug (if used) in the male connector of the unit to which you are connecting this terminal base unit.
2)Check to make sure that the 16 pins in the male connector on the adjacent device are straight and in line so that the mating female connector on this terminal base unit will mate correctly.
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Flex™ IO Isolated Universal Input Module |
3)Position the terminal base on the 35 x 7.5mm DIN rail A (A-B pt.no. 199-DR1; 46277-3) at a slight angle with hook B on the left side of the terminal base hooked into the right side of the unit on the left. Proceed as follows:
User's Manual Pub. 0300231 01 Rev. A
Chapter 2: Installation and Wiring |
2-7 |
4)Repeat the above steps to install the next terminal base.
2.4.2Panel/Wall Mounting
Installation on a wall or panel consists of:
•Laying out the drilling points on the wall or panel
•Drilling the pilot holes for the mounting screws
•Mounting the adapter mounting plate
•Installing the terminal base units and securing them to the wall or panel
If you are installing your module into a terminal base unit that is already installed, proceed to “Mounting the IF8IU Module on the Terminal Base Unit” on page 2-9.
Use the mounting kit Cat. No. 1794-NM1 for panel/wall mounting.
User's Manual Pub. 0300231 01 Rev. A
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