Spectrum Controls 1769sc-IF4IH User Manual
User's Manual 0300215-03 Rev. A
User's Manual 0300215-03 Rev . A
Compact™ I/O
Isolated HART
Analog Module
Catalog Number: 1769sc-IF4IH
User's Manual 0300215-03 Rev. A
Table of Contents
TABLE OF CONTENTS ............................................................................................................................................ I
CHAPTER 1 MODULE OVERVIEW .................................................................................................................. 1-1
SECTION 1.1GENERAL DESCRIPTION .................................................................................................................... 1-1
SECTION 1.2DATA FORMATS ................................................................................................................................. 1-1
SECTION 1.3FILTER FREQUENCIES ........................................................................................................................ 1-2
SECTION 1.4HARDWARE FEATURES ...................................................................................................................... 1-2
1.4.1 General Diagnostic Features.................................................................................................................... 1-3
SECTION 1.5SYSTEM OVERVIEW........................................................................................................................... 1-3
1.5.1 System Operation ...................................................................................................................................... 1-3
SECTION 1.6MODULE OPERATION ........................................................................................................................ 1-4
CHAPTER 2 QUICK START FOR EXPERIENCED USERS ........................................................................... 2-1
SECTION 2.1BEFORE YOU BEGIN .......................................................................................................................... 2-1
SECTION 2.2REQUIRED TOOLS AND EQUIPMENT .................................................................................................. 2-1
SECTION 2.3WHAT YOU NEED TO DO .................................................................................................................. 2-1
CHAPTER 3 INSTALLATION AND WIRING ................................................................................................... 3-1
SECTION 3.1COMPLIANCE TO EUROPEAN UNION DIRECTIVES ............................................................................. 3-1
3.1.1 EMC Directive .......................................................................................................................................... 3-1
3.1.2 Low Voltage Directive .............................................................................................................................. 3-1
3.1.3 CE Safety .................................................................................................................................................. 3-1
SECTION 3.2POWER REQUIREMENTS .................................................................................................................... 3-2
SECTION 3.3GENERAL CONSIDERATIONS .............................................................................................................. 3-2
3.3.1 Hazardous Location Considerations ........................................................................................................ 3-2
3.3.2 Prevent Electrostatic Discharge ............................................................................................................... 3-2
3.3.3 Remove Power .......................................................................................................................................... 3-3
3.3.4 Selecting a Location ................................................................................................................................. 3-3
SECTION 3.4SYSTEM ASSEMBLY ........................................................................................................................... 3-4
SECTION 3.5MOUNTING ......................................................................................................................................... 3-5
3.5.1 Minimum Spacing ..................................................................................................................................... 3-5
3.5.2 Panel Mounting ........................................................................................................................................ 3-5
3.5.3 DIN Rail Mounting ................................................................................................................................... 3-6
SECTION 3.6REPLACING A SINGLE MODULE WITHIN A SYSTEM ........................................................................... 3-7
SECTION 3.7FIELD WIRING CONNECTIONS &SYSTEM WIRING GUIDELINES ...................................................... 3-7
3.7.2 Terminal Door Label ................................................................................................................................ 3-8
3.7.3 Removing and Replacing the Terminal Block ........................................................................................... 3-8
3.7.4 Wiring the Finger-Safe Terminal Block .................................................................................................... 3-8
3.7.5 Wiring the Module .................................................................................................................................... 3-9
3.7.6 Wiring Diagram ...................................................................................................................................... 3-10
3.7.7 Calibration.............................................................................................................................................. 3-10
CHAPTER 4 CONFIGURING THE IF4IH FOR COMPACTLOGIX USING RSLOGIX 5000 ................... 4-1
SECTION 4.1SETTING UP THE GENERIC PROFILE ................................................................................................... 4-1
SECTION 4.2USING THE ADD-ON PROFILE ............................................................................................................ 4- 5
4.2.1 Installing the Add-On profile .................................................................................................................... 4-5
4.2.2 Adding the IF4IH Module To Your Logix Project .................................................................................... 4-6
SECTION 4.3USER DEFINED DATA TYPES ............................................................................................................. 4-7
SECTION 4.4PROJECT TAGS ................................................................................................................................... 4-8
SECTION 4.5SAMPL E PROJECT LADDER ................................................................................................................. 4-9
CHAPTER 5 CONFIGURING THE IF4IH FOR A MICROLOGIX 1500 USING RSLOGIX 500 .............. 5-1
Compact™ IO Isolated HART Analog Input Module
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ECTION 5.1MODULE ADDRESSING ...................................................................................................................... 5-1
SECTION 5.2CONFIGURING THE 1769SC-IF4IH IN A MICROLOGIX 1500SYSTEM ............................................... 5-2
SECTION 5.3USING THE LADDER SAMPL E ............................................................................................................. 5-6
5.3.1 Copying Subroutines from the Sample Project ......................................................................................... 5-6
5.3.2 Copying Ladder from the Sample Project................................................................................................. 5-7
5.3.3 Importing Tag Database and Rung Comments ......................................................................................... 5-8
CHAPTER 6 MODULE DATA, STATUS, AND CHANNEL CONFIGURATION ......................................... 6-1
SECTION 6.1MODULE MEMORY MAP ................................................................................................................... 6-1
SECTION 6.2ACCESSING INPUT IMAGE FILE DATA ................................................................................................ 6-2
SECTION 6.3INPUT DATA FILE ............................................................................................................................... 6-2
6.3.1 Input Data Values (Words 0 to 3) ............................................................................................................. 6-2
6.3.2 Time Stamp Value (Word 4)...................................................................................................................... 6-2
6.3.3 General Status Bits S0 to S3 (Word 5) ...................................................................................................... 6-2
6.3.4 Out of Service Status Bits OS0 to OS3 (Word 5) ...................................................................................... 6-3
6.3.5 Over-Range Flag Bits O0 to O3 (Word 6) ................................................................................................ 6-3
6.3.6 Under-Range Flag Bits U0 to U3 (Word 6) .............................................................................................. 6-3
6.3.7 High Process Alarm Flag Bits H0 to H3 (Word 6) ................................................................................... 6-3
6.3.8 Low Process Alarm Flag Bits L0 to L3 (Word 6) ..................................................................................... 6-4
6.3.9 Pad (Word 7) ............................................................................................................................................ 6-4
6.3.10 HART Data (Words 8 to 27) ................................................................................................................... 6-4
6.3.11 Message Slave Control (Word 28) .......................................................................................................... 6-4
6.3.12 Message Reply Size (Word 29) ............................................................................................................... 6-4
6.3.13 Message Reply Buffer (Words 30…49) ................................................................................................... 6-4
6.3.14 Reserved (Words 50…71) ....................................................................................................................... 6-4
SECTION 6.4MODULE CONFIGURATION ................................................................................................................ 6-5
6.4.1 Real Time Sample Value (Word 0)............................................................................................................ 6-6
6.4.2 General Configuration Bits (Word 1) ....................................................................................................... 6-6
6.4.3 Filter Frequency and General Settings (Words 2, 8, 14, 20) .................................................................... 6-7
6.4.4 Input Type and Data Format (Words 3, 9, 15, 21) ................................................................................. 6-11
6.4.5 Process Alarm High Setpoint (Word s 4, 10, 16, 22) ............................................................................... 6-13
6.4.6 Process Alarm Low Setpoint (Words 5, 11, 17, 23) ................................................................................ 6-13
6.4.7 Process Alarm Deadband (Words 6, 12, 18, 24) .................................................................................... 6-13
6.4.8 Pad (Words 7, 13, 19, 25) ....................................................................................................................... 6-14
6.4.9 Channel X HART Slot Variables 0 & 1 (Words 26, 28, 30, 32) .............................................................. 6-14
6.4.10 Channel X HART Slot Variables 2 & 3 (Words 25, 27, 31, 33) ............................................................ 6-14
SECTION 6.5OUTPUT DATA FILE ......................................................................................................................... 6-15
6.5.1 Unlatch Process High Alarms UH0 to UH3 (Word 0) ........................................................................... 6-15
6.5.2 Unlatch Process Low Alarms UL0 to UL3 (Word 0) .............................................................................. 6-15
6.5.3 Hart Suspend HS0 to HS3 (Word 0) ....................................................................................................... 6-15
6.5.4 Packet Just Scanned (Word 1) ................................................................................................................ 6-15
6.5.5 Message Master Control (Word 2) ......................................................................................................... 6-16
6.5.6 Message Request Size (Word 3) .............................................................................................................. 6-16
6.5.7 Message Request Buffer (Words 4…23) ................................................................................................. 6-16
6.5.8 Reserved (Words 24…45) ....................................................................................................................... 6-16
SECTION 6.6DETERMINING EFFECTIVE RESOLUTION AND RANGE .................................................................... 6-17
SECTION 6.7DETERMINING MODULE UPDATE TIME .......................................................................................... 6-18
6.7.1 Calculating Module Update Time ........................................................................................................... 6-18
CHAPTER 7 ENABLING AND USING HART ON THE 1769SC-IF4IH ......................................................... 7-1
SECTION 7.1CONFIGURING THE MODULE FOR HART ........................................................................................... 7-1
7.1.1 Configuring the IF4IH Module for (Hart Acquisition/Communication)................................................... 7-1
SECTION 7.2HART PACKET DATA ........................................................................................................................ 7-2
7.2.1 How the Module Connects to a Field Device ........................................................................................... 7-2
7.2.2 Auto Acquisition........................................................................................................................................ 7-3
7.2.3 Packet Interval ........................................................................................................................................ 7-10
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ECTION 7.3SENDING AND RECEIVING MESSAGES .............................................................................................. 7-11
7.3.1 Module Output Tags Used For Messaging ............................................................................................. 7-11
7.3.2 Module Input Tags Used For Messaging ................................................................................................ 7-12
7.3.3 Processing a Message ............................................................................................................................. 7-13
SECTION 7.4MODULE SPECIFIC COMMANDS ....................................................................................................... 7-30
7.4.1 Get HART Device Information ............................................................................................................... 7-30
7.4.2 HART Channel Suspension and Resume ................................................................................................. 7-33
7.4.3 HART Pass-Through Command ............................................................................................................. 7-34
SECTION 7.5HART PROTOCOL OVERVIEW ......................................................................................................... 7-43
7.5.1 Message Format ..................................................................................................................................... 7-43
7.5.2 Sending a HART Command to a Field Device via Pass-through ........................................................... 7-45
CHAPTER 8 PROGRAMMING EXAMPLES .................................................................................................... 8-1
SECTION 8.1COMPACTLOGIX ................................................................................................................................ 8-1
8.1.1 Reset/Reconfig .......................................................................................................................................... 8-1
8.1.2 Swap Byte Order ....................................................................................................................................... 8-3
8.1.3 Converting Unpacked ASCII to Packed ASCI I ......................................................................................... 8-3
SECTION 8.2MICROLOGIX 1500 ............................................................................................................................ 8-6
8.2.1 MAIN Routine ........................................................................................................................................... 8-7
8.2.2 PACKETS Routine .................................................................................................................................... 8-8
8.2.3 MSG_TO_MOD Routine ........................................................................................................................ 8-11
8.2.4 SRC_CHECK Routine ............................................................................................................................ 8-28
8.2.5 DEST_CHECKSUM Routine .................................................................................................................. 8-30
8.2.6 HART_MSG Routine ............................................................................................................................... 8-32
8.2.7 WORD_BYTE Routine ............................................................................................................................ 8-43
8.2.8 HART_CHECK Routine .......................................................................................................................... 8-46
8.2.9 BYTE_WORD Routine ............................................................................................................................ 8-48
CHAPTER 9 DIAGNOSTICS AND TROUBLESHOOTING ............................................................................ 9-1
SECTION 9.1SAFETY CONSIDERATIONS................................................................................................................. 9-1
9.1.1 Indicator Lights ........................................................................................................................................ 9-1
9.1.2 Stand Clear of Equipment ......................................................................................................................... 9-1
9.1.3 Program Alteration ................................................................................................................................... 9-1
9.1.4 Safety Circuits ........................................................................................................................................... 9-1
SECTION 9.2MODULE OPERATION VS.CHANNEL OPERATION .............................................................................. 9-2
SECTION 9.3POWER-UP DIAGNOSTICS .................................................................................................................. 9-2
SECTION 9.4CHANNEL DIAGNOSTICS .................................................................................................................... 9-2
9.4.1 Invalid Channel Configuration Detection ................................................................................................ 9-2
9.4.2 Over or Under-Range Detection ............................................................................................................... 9-3
SECTION 9.5NON-CRITICAL VS.CRITICAL MODULE ERRORS ............................................................................... 9-3
SECTION 9.6MODULE ERROR DEFINITION TABLE ................................................................................................. 9-3
9.6.1 Module Error Field................................................................................................................................... 9-3
9.6.2 Extended Error Information Field ............................................................................................................ 9-4
SECTION 9.7ERROR CODES .................................................................................................................................... 9-4
SECTION 9.8MODULE INHIBIT FUNCTION ............................................................................................................. 9-5
APPENDIX A MODULE SPECIFICATIONS .................................................................................................... A-1
SECTION A.1 ELECTRICAL SPECIFICATIONS .......................................................................................................... A-1
SECTION A.2 ENVIRONMENTAL SPECIFICATIONS ................................................................................................. A- 2
SECTION A.3 REGULATORY COMPLIANCE ............................................................................................................ A-3
APPENDIX B HART UNIVERSAL AND COMMON PRACTICE COMMANDS ......................................... B-1
Compact™ IO Isolated HART Analog Input Module
User's Manual 0300215-03 Rev. A
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User's Manual 0300215-03 Rev. A
Preface
Read this preface to familiarize yourself with the rest of the manual. This preface covers
the following topics:
• Who should use t his 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-Bradle y Compact™ I/O and/or
compatible controllers, such as MicroLogix 1500 or CompactLogix.
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
1769sc-IF4IH.
Related
Documentation
The table below provides a listing of publications that contain important information
about MicroLogix 1500 syste ms.
Document Title Document Number
MicroLogix™ 1500 User Manual 1764-UM001A-US-P
1769 Compact Discrete Input/Output Modules
Product Data
1769-2.1
MicroLogix™ 1500 System Overview 1764-SO001B-EN-P
Compact™ I/O System Overview 1769-SO001A-EN-P
CompactLogix User Manual 1769-UM007B-EN-P
Allen-Bradley Programmable Controller
Grounding and Wiring Guidelines
1770-4.1
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:
o Contacting your local distributor or Rockwell Automation representative
o Visiting www.theautomationbookstore.com and placing your order
o Calling 1.800.963.9548 (USA/Canada) or 001.330.725.1574 (Outside
USA/Canada)
Compact IO™ Isolated HART Analog Input Module
User's Manual 0300215-03 Rev. A
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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 0300215-03 Rev. A
Chapter 1
Module Overview
This chapter describes the 1769sc-IF4IH isolated HART analog input module and
explains how the module reads current, voltage, and current wit h H ART input data.
Included is information about:
• The module’s hardware and diagnostic features
• An overview of the system and module operation
Section 1.1
General
Description
The IF4IH is a four channel isolated module that allows each channel to be configured
independently for either current, voltage, or current with HART communication. The
module digitally converts and stores analog data from any combination mentioned above
as well as HART data for channels configured for HART. Each input channel is
individually configured via software for a specific input device, data forma t and filter
frequency, and provides over-range and under-range detection and indication.
The tables below list the input types and their associated ranges.
Table 1-1
Current Input Types
0 t o 20mA
4mA to 20mA
Table 1-2
Volt age Input Types
± 10 V
0 to 10 V
0 t o 5 V
1 t o 5 V
Section 1.2
Data Formats
The data can be configured on board each module as:
• Engineering un it s
• Scaled-for-PID
• Percent of full-scale
• Raw/proportional data
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User's Manual 0300215-03 Rev . A
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Section 1.3
Filter
Frequencies
The module uses a digital filter that provides high frequency noise rejection for the input
signals. The filter is programmable, allowing you to select from five different filter
frequencies for each channel:
• 28.5 Hz
• 50 Hz
• 60 Hz
• 300 Hz
• 360 Hz
Section 1.4
Hardware
Features
The module contains a removable terminal block. Channels are wired as differential
inputs (i.e. each channel will have a dedicated ground).
Note: A jumper must be installed on the terminal block between CH- and CH-iRtn for
all current input ranges.
Module configuration is done via 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
5a
9
5b
6
7a
7b
8b
7b
8a
7a
OK
HART
10a
10b
4
10
2b
3
2a
1
DANGER
Do Not Remov e RTB Under
Power Unless Are a is No nHazardous
Ensure Adjacent Bus
Lever is Unlatched/
Latched Before/After
Removing/I nserting
Module
OK
HART
Item Description
1 bus lever
2a upper panel mounting tab
2b lower panel mounting tab
3 module status LED
4 module door with terminal identification label
Chapter 1: Module Overview
User's Manual 0300215-03 Rev . A
1-3
5a movable bus connector (bus interface) with female pins
5b stationary bus connector (bus interface) with male pins
6 nameplate label
7a upper tongue-and-groove slots
7b lower tongue-and-groove slots
8a upper DIN rail latch
8b lower DIN rail latch
9 write-on label for user identification tags
10 removable termi nal block (RTB) with finger-safe cover
10a RTB upper retaining screw
10b RTB lower retaining screw
1.4.1 General Diagnostic Features
The module contains a diagnostic LED that helps you identify the source of problems that
may occur during power-up or during normal channel operation. The LED indicates both
status and power. Power-up and channel diagnostics are explained in Chapter 9
Diagnostics and Troubleshooting.
Section 1.5
System
Overview
The modules communicate to the controller through the bus interface. The modules also
receive 5 and 24V dc power through the bus interface.
1.5.1 System Operation
At power-up, the module performs a check of its internal circuits, memory, and basic
functions. During this time, the module status LED remains off. If no faults are found
during power-up diagnostic s, the module status LED is turned on.
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 value within the range selected for that channel.
Each time a channel is read by the input module, that data value is tested by the module
for an over-range, under-range, open-circuit, or “i nput data not valid” condition. If such a
condition is detected, a unique bit is set in the channel status word. The channel status
word is described in Section 6.3 Input Data File.
Using the module image table, the controller reads the two’s comp lement 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 used in the
control program.
Compact™ IO Isolated HART Analog Input Module
User's Manual 0300215-03 Rev . A
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Section 1.6
Module
Operation
When the module receives the input from an analog device, the module’s circuitry
multiplexes the input into an A/D converter. The converter reads the signal and converts
it as required for the type of input. If HART is enabled on a channel, the HART data is
acquired my means of an onboard HART mode m.
Note: The HART data is acquired asynchronously from the analog acquisition process
and therefore does not directly effect the analog update time.
See the block diagram below.
Figure 1-2
The module is designed to support up to 4 isolated channels which can be independe ntly
configured for voltage, current, or current with HART. The module converts the analog
values directly into digital counts which are viewed and accessed from within the PLC
via controller input tags.
The HART data, if enabled, is converted directly to a block of twent y controller input
tags. The data within this block of twenty tags is multiplexed. For information on HART
and how to demultiplex the HART data, refer to Chapter 7.
User's Manual 0300215-03 Rev . A
Chapter 2
Quick Start for Experienced
Users
Section 2.1
Before
You Begin
This chapter can help you get started using the 1769sc-IF4IH isolated HART analog
input module. We base the procedures here on the assumption that you have an
understanding of Allen-Bradley controllers. You should understand electronic process
control and be able to interpret the ladder logic instructions required to generate the
electronic signals that control your application.
Because it is a start-up guide for experienced users, this chapter does no t contain detailed
explanations about the procedures listed. It does, however, reference other chapters in
this book where you can get more information about applying the procedures described in
each step.
If you have any questions or are unfamiliar with the terms used or concepts presented in
the procedural steps, always read the referenced chapters and other recommended
documentation before trying to apply the information.
Section 2.2
Required
Tools and
Equipment
Have the following tools and equipment ready:
• Medium blade or cross-head screwdriver
• Analog input device
• Shielded, twisted-pair cable for wiring (Belden™ 8761 or equivalent for voltage and
current inputs)
• Controller (for example, a MicroLogix™ 1500 or CompactLogix™ controller)
• Programming device and software (for example, RSLogix 500™ or RSLogix
5000™)
Section 2.3
What You
Need To Do
This chapter covers:
1. Ensuring that your power supply is adequate
2. Attaching and locking the module
3. Wiring the module
4. Configuring the module
5. Going through the startup procedure
6. Monitoring module operation
Chapter 2: Quick Start for Experienced Users
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Step 1: Ensure that your 1769 system
power supply
1
has sufficient current
output to support your system
configuration. Reference
Chapter 3 (Installation and Wiring)
The modules maximum current draw is shown below:
5V dc 24V dc
175 mA 60 mA
NOTE: The module cannot be located more than 8 modules away from the system
power supply.
Step 2: Attach and lock the module. Reference
Chapter 3 (Installation and Wiring)
Remove power before removing or inserting this module. If you remove or insert a
module with power applied an electrical arc may occur.
NOTE: The module can be panel or DIN rail mounted. Modules can be assembled
before or after mounting.
!
Attention
Remove power before removing or inserting this module. If you remove
or insert a module with power applied an electrical arc may occur.
1. Check that the bus lever of the module to be installed is in the unlocked (fully right)
position.
2. Use the upper and lower tongue-and-groove slots (1) to secure the modules together
(or to a controller).
3. Move the module back along the tongue-and-groove slots until the bus connectors
(2) line up with each other.
4. Push the bus lever back slightly to clear the positioning tab (3). Use your fingers or a
small screwdriver.
1
The system power supply could be a 1769-PA2, -PB2, -PA4, -PB4, or the internal supply of the MicroLogix 1500
packaged controller.
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5. To allow communication between the controller and module, move the bus lever
fully to the left (4) until it clicks. Ensure it is locked firmly in place.
6. Attach a n end cap terminator (5) to the last module in the system by using the
tongue-and-groove slots as before.
7. Lock the end cap bus terminator (6).
!
Attention
When attaching I/O modules it is very important that the bus connectors
are securely locked together to ensure proper electrical connection.
!
Attention
A 1769-ECR or 1769-ECL right or left end cap respectively must be used
to terminate the end of the 1769 communication bus.
Step 3: Wire the module. Reference
Chapter 3 (Installation and Wiring)
Follow the guidelines below when wiring the module.
General
• Power and input wiring must be in accordance with Class 1, Division 2 wiring
methods, Article 501-4(b) of the National Electric Code, NFPA 70, and in
accordance with the authority having jurisdiction.
• Channels are isolated from one another by ±500V dc maximum.
• Route field wiring away from any other wiring and keep it as far as possible from
sources of electrical noise, such as motors, transformers, contactors, and ac devices.
As a general rule, allow at least 15.2 cm (6 in.) of separation for every 120V of
power.
• Routing field wiring in a grounded conduit can reduce electrical noise.
• If field wiring must cross ac or power cables, ensure that they cross at right angles.
Terminal Block
• For voltage and current sensors, use Belden 8761 shielded, twisted-pair wire (or
equivalent) to ensure proper operation and high immunity to electrical noise.
• To ensure optimum accuracy, limit overall cable impedance by keeping a cable as
short as possible. Locate the module as close to input devices as the application
permits.
Grounding
• This product is intended to be mounted to a well-grounded mounting surface such as
a metal panel. Additional grounding connections from the module’s mounting tabs or
DIN rail (if used) are not required unless the mounting surface cannot be grounded.
• Keep cable shield connections to ground as short as possible.
• Ground the shield drain wire at one end only. The preferred location is as follows.
• Refer to Industrial Automation Wiring and Grounding Guidelines, Allen-Bradley
publication 1770-4.1, for additional information.
Chapter 2: Quick Start for Experienced Users
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The terminal block layout is shown below:
Figure 2-1
N/C
Ch1-iRtn
N/C
Ch3-iRtn
Ch0+
N/C
Ch0-iRtn
Ch0-
Ch1+
N/C
Ch2-iRtn
Ch2-
Ch3+
Ch3-
N/C
N/C
Ch2+
Ch1-
Step 4: Configure the module for the
proper controller.
Reference
Chapter 4 (Configuring the IF4IH for
CompactLogix Using
RSLogix 5000) or Chapter 5 (Configuring
the IF4IH for a MicroLogix 1500 Using
RSLogix 500)
Step 5: Configure the module. Reference
Chapter 6 (Module Data, Status, and
Channel Configuration)
The configuration file is typically modified using the programming software compatible
with your controller. It can also be modified through the control program, if supported by
the controller. See Section 6.4 Module
Configuration for more information.
Step 6: Go through the startup
procedure. Reference
Chapter 9 (Diagnostics and
Troubleshooting)
1. Apply power to the controller system.
2. Download your program, which contains the Isolated HART module configuration
settings, to the controller.
3. Put the controller in Run mode. During a normal start-up, the module status LED
turns on.
NOTE: If the module status LED does not turn on, cycle power. If the conditio n
persists, contact your local distributor or Spectrum Controls for assistance.
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Step 7: Monitor the module status to
check if the module is operating
correctly Reference
Chapter 9 (Diagnostics and
Troubleshooting)
Module and channel configuration errors are reported to the controller. These errors are
typically reported in the controller’s I/O status file. Channel status data is also reported in
the module’s input data table, so these bits can be used in your control program to flag a
channel error.
Chapter 2: Quick Start for Experienced Users
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User's Manual 0300215-03 Rev . A
Chapter 3
Installation and Wiring
This chapter explains how to:
• Determine the power requirements for the module
• Avoid electrostatic damage
• Install the module
• Wire the module’s terminal block
• Wire input devices
Section 3.1
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.
3.1.1 EMC Directive
The 1769sc-IF4IH 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 50081-2 EMC – Generic Emission Standard, Part 2 - Industrial Environment
• EN 50082-2 EMC – Generic Immunity Standard, Part 2 - Industrial Environment
This product is intended for use in an industrial environment.
3.1.2 Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC Low Voltage, by applying
the safety requirements of EN 61131-2 Programmable 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, p ublication B113
3.1.3 CE Safety
This product is designed to, and verified compliance with, European Union Safety
Standards:
• EN61131-2
• EN61010-1
Compact IO™ Isolated HART Analog Input Module
User's Manual 0300215-03 Rev . A
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Section 3.2
Power
Requirements
The module receives power through the bus inter face from the +5V dc/ +24V dc system
power supply. The maximum current drawn by the module is shown in the table below.
Module Current Draw at 5V dc at 24V dc
175 mA 60 mA
Section 3.3 General
Considerations
Compact 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 2
1
and to circuits not exceeding Over Voltage Category
II
2
(IEC 60664-1)
3
3.3.1 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.
!
Attention
· EXPLOSION HAZARD
· Substitution of components may impair suitability for Class I,
Division2.
· Do not replace components or disconnect equipment unless power has
been switched off or the area is known to be non-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).
3.3.2 Prevent 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.
1
Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that
occasionally a temporary conductivity caused by condensation shall be expected.
2
Over 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.
3
Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC)
designations.
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User's Manual 0300215-03 Rev . A
3-3
3.3.3 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.
3.3.4 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 1769-IA16.
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.
Power Supply Distance
You can install as many modules as your power supply can support. However, all 1769
I/O modules have a power supply distance rating. The maximum I/O module rati ng is 8,
which means that a module may not be located more than 8 modules away from the
system power supply.
Figure 3-1
Compact IO™ Isolated HART Analog Input Module
User's Manual 0300215-03 Rev . A
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Section 3.4
System Assembly
The module can be attached to the controller or an adjacent I/O module before or after
mounting. For mounting instructions, see Panel Mounting Using the Dimensional
Template, or DIN Rail Mounting. To work with a system that is already mounted, see
Replacing a Single Module within a System.
The following procedure shows you how to assemble the Compact I/O system.
Figure 3-2
1. Disconnect power.
2. Check that the bus lever of the module to be installed is in the unlocked (fully right)
position.
NOTE: If the module is being installed to the left of an existing module, check that the
right-side adjacent module’s bus lever is in the unlocked (fully right) p osition.
3. Use the upper and lower tongue-and-groove slots (1) to secure the modules together
(or to a controller).
4. Move the module back along the tongue-and-groove slots until the bus connectors
(2) line up with each other.
5. Push the bus lever back slightly to clear the positioning tab (3). Use your fingers or a
small screwdriver.
6. To allow communication between the controller and module, move the bus lever
fully to the left (4) until it clicks. Ensure it is locked firmly in place.
!
Attention
When attaching I/O modules, it is very important that the bus
connectors are securely locked together to ensure proper electrical
connection.
7. Attach a n end cap terminator (5) to the last module in the system by using the
tongue-and-groove slots as before.
8. Lock the end cap bus terminator (6).
!
Attention
A 1769-ECR or 1769-ECL right or left end cap respectively must be
used to terminate the end of the bus.
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User's Manual 0300215-03 Rev . A
3-5
Section 3.5
Mounting
!
Attention
During panel or DIN rail mounting of all devices, be sure that all debris
(metal chips, wire strands, etc.) is kept from falling into the module.
Debris that falls into the module could cause damage at power up.
3.5.1 Minimum Spacing
Maintain spacing from enclosure walls, wireways, adjacent equipment, etc. Allow 50 mm
(2 in.) of space on all sides for adequate ventilation, as shown below:
Figure 3-3
3.5.2 Panel Mounting
Mount the module to a panel using two screws per module. Use M4 or #8 panhead
screws. Mounting screws are required on every module.
Compact IO™ Isolated HART Analog Input Module
User's Manual 0300215-03 Rev . A
3-6
Panel Mounting Using the Dimensional Template
Figure 3-4
Panel Mounting Procedure Using Modules a s a Template
The following procedure allows you to use the assembled modules as a template for
drilling holes in the panel. If you have sophisticated panel mounting equipment, you can
use the dimensional template provided on the previous page. Due to module mounting
hole tolerance, it is important to follow these procedures:
1. On a clean work surface, assemble no more than three modules.
2. Using the assembled modules as a template, carefully mark the center of all module-
mounting holes on the panel.
3. Return the assembled modules to the clean work surface, including any previously
mounted module s.
4. Drill and tap the mounting holes for the recommended M4 or #8 screw.
5. Place the modules back on the panel, and check for proper hole alignment.
6. Attach the modules to the panel using the mounting screws.
NOTE If mounting more modules, mount only the last one of this group and put the
others aside. This reduces remounting time during drilling and tapping of the next
group.
7. Repeat steps 1 to 6 for any remaining modules.
3.5.3 DIN Rail Mounting
The module can be mounted using the following DIN rails:
• 35 x 7.5 mm (EN 50 022 - 35 x 7.5), or
• 35 x 15 mm (EN 50 022 - 35 x 15).
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User's Manual 0300215-03 Rev . A
3-7
Before mounting the module on a DIN rail, close the DIN rail latches. Press the DIN rail
mounting area of the module against the DIN rail. The latches will momentarily open and
lock into place.
Section 3.6
Replacing a Single
Module within
a System
The module can be replaced while the system is mounted to a panel (or DIN rail). Follow
these steps in order:
1. Re move power. See important note at the beginning of this chapter.
2. On the module to be removed, remove the upper and lower mounting screws from
the module (or open the DIN latches using a flat-blade or phillips- st yle screwdriver).
3. Move the bus lever to the right to disconnect (unlock) the bus.
4. On the right-side adjacent module, move its bus lever to the right (unlock) to
disconnect it from the module to be removed.
5. Gently slide the disconnected module forward. If you feel excessive resistance,
check that the module has been disconnected from the bus, and that both mounting
screws have bee n removed (or DIN latches opene d).
NOTE: It may be necessary to rock the module slightly fro m front to back to remove it,
or, in a panel-mounted system, to loosen the screws of adjacent modules.
6. Before installing the replacement module, be sure that the bus lever on the module to
be installed and on the right-side adjacent module or end cap are in the unlocked
(fully right) position.
7. Slide the replacement module into the open slot.
8. Connect the modules together by locking (fully left) the bus levers on the
replacement module and the right-side adjacent module.
9. Replace the mounting screws (or snap the module onto the DIN rail).
Section 3.7
Field Wiring
Connections &
System Wiring
Guidelines
Consider the following when wiring your system:
General
• Power and input wiring must be in accordance with Class 1, Division 2 wiring
methods, Article 501-4(b) of the National Electric Code, NFPA 70, and in
accordance with the authority having jurisdiction.
• Channels are isolated from one another by ±500 Vdc maximum.
• Route field wiring away from any other wiring and as far as possible from sources of
electrical noise, such as motors, transformers, contactors, and ac devices. As a
general rule, allow at least 15.2 cm (6 in.) of separation for every 120V of power.
• Routing field wiring in a grounded conduit can reduce electrical noise.
• If field wiring must cross ac or power cables, ensure that they cross at right angles.
• Provision shall be made to prevent the rated voltage being exceeded by the transient
disturbances of more than 40%.
• The system shall be mounted in an ATEX certified enclosure with a minimum
ingress protection rating of at least IP54 as defined in IEC60529 or EN60529 and
used in an environment of not more than pollution degree 2.
• Earthing is accomplished through mounting of modules on rail.
Compact IO™ Isolated HART Analog Input Module
User's Manual 0300215-03 Rev . A
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• Subject devices are for operation in Ambient Temperature Range: 0 C to +60 C
Terminal Block
• For voltage and current sensors, use Belden 8761 shielded, twisted-pair wire (or
equivalent) to ensure proper operation and high immunity to electrical noise.
• To ensure optimum accuracy, limit overall cable impedance by keeping a cable as
short as possible. Locate the module as close to input devices as the application
permits.
Grounding
• This product is intended to be mounted to a well-grounded mounting surface such as
a metal panel. Additional grounding connections from the module’s mo untin g tabs or
DIN rail (if used) are not required unless the mounting surface cannot be grounded.
• Keep cable shield connections to ground as short as possible.
• Ground the shield drain wire at one end only. The typical location is as follows.
• If it is necessary to connect the shield drain wire at the module end, connect it to
earth ground using a panel or DIN rail mounting screw.
• Refer to Industrial Automation Wiring and Grounding Guidelines, Allen-Bradley
publication 1770-4.1, for additional information.
Noise Prevention
• To limit the pickup of electrical noise, keep analog signal wires as far as possible
from power and load lines.
• If noise persists for a device, try grounding the opposite end of the cable shield. (You
can only ground one end at a time.)
3.7.2 Terminal Door Label
A removable, write-on label is provided with the module. Remove the label from the
door, mark your unique identification of each terminal with permanent ink, and slide the
label back into the door. Your markings (ID tag) will be visible when the module door is
closed.
3.7.3 Removing and Replacing the Terminal Block
When wiring the module, you do not ha ve to remove the terminal block. If you remove
the terminal block, use the write-on label located on the side of the terminal block to
identify the module location and type.
Figure 3-5
To remove the terminal block, loosen the upper and lower retaining screws. The terminal
block will back away from the module as you remove the screws. When replacing the
terminal block, torque the retaining screws to 0.46 Nm (4.1 in-lbs).
3.7.4 Wiring the Finger-Safe Terminal Block
When wiring the terminal block, keep the finger-safe cover in place.
1. Loosen the terminal screws to be wired.
2. Route the wire under the terminal pressure plate. You can use the bare wire or a
spade lug. The terminals accept a 6.35 mm (0.25 in.) spade lug.
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User's Manual 0300215-03 Rev . A
3-9
NOTE: The terminal screws are non-captive. Therefore, it is possible to use a ring lug
[maximum 1/4 inch o.d. with a 0.139 inch minimum i.d. (M3.5)] with the module.
3. Tighten the terminal screw making sure the pressure plate secures the wire.
Recommended torque when tightening terminal screws is 0.68 Nm (6 in-lbs).
NOTE: If you need to remove the finger-safe cover, insert a screwdriver into one of the
square, wiring holes and gently pry the cover off. If you wire the term inal block with
the finger-safe cover removed, you may not be able to put it back on the terminal block
because the wires will be in the way.
Wire Size and Terminal Screw Torque
Each terminal accepts up to two wires with the following restrictions:
Wire Type Wire Size Terminal Screw
Torque
Retaining Screw
Torque
Solid Cu-90°C
(194°F)
#14 to #22 AWG
(1.63 to 0.65 mm)
0.68 Nm (6 in-lbs) 0.46 Nm (4.1 in-lbs)
Stranded Cu-90°C
(194°F)
#16 to #22 AWG
(1.63 to 0.65 mm)
0.68 Nm (6 in-lbs) 0.46 Nm (4.1 in-lbs)
!
Attention
Use supply wires suitable for 20°C above surrounding a mbient.
3.7.5 Wiring the Module
!
Attention
To prevent shock hazard, care should be taken when wiring the module
to analog signal sources. Before wiring any module, disconnect power
from the system power supply and from any other source to the module.
After the module is properly installed, follow the wiring procedure below, using the
proper cable, Belden 8761.
Figure 3-6
To wire your module follow t hese steps.
1. At each end of the cable, strip some casing to expose the individual wires.
2. Trim the signal wires to 2-inch (5 cm) lengths. Strip about 3/16 inch (5 mm) of
insulation away to expose the end of the wire.
!
Attention
Be careful when stripping wires. Wire fragments that fall into a module
could cause damage at power up.
3. At one end of the cable, twist the drain wire and foil shield together, bend them away
from the cable, and apply shrink wrap. Then earth ground at the preferred location
based on the type of sensor you are using. See Grounding for more details.
4. At the other end of the cable, cut the drain wire and foil shield back to the cable and
apply shrink wrap.
Compact IO™ Isolated HART Analog Input Module
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5. Connect the signal wires to the terminal block. Connect the other end of the cable to
the analog input device.
6. Repeat steps 1 through 5 for each channel on the module.
3.7.6 Wiring Diagram
Figure 3-7
N/C
Ch1-iRtn
N/C
Ch3-iRtn
Ch0+
N/C
Ch0-iRtn
Ch0-
Ch1+
N/C
Ch2-iRtn
Ch2-
Ch3+
Ch3-
N/C
N/C
Ch2+
Ch1-
+ -
2 Wire
XMTR
+
-
24V DC
Power
Supply
2 Wire Current Input
+
-
4 Wire Current Input
4 Wire
XMTR
+
+
--
24V DC
Power
Supply
+V
- V
Voltage Input
3.7.7 Calibration
The isolated HART module is initially calibrated at the factory.
User's Manual 0300215-03 Rev . A
Chapter 4
Configuring the IF4IH for
CompactLogix Using
RSLogix 5000
This chapter explains how to incorporate the IF4IH module into a CompactLo gix syste m
using RSLogix 5000 programming soft ware. The process of incorporating your HART
module into the CompactLogix system is similar to the process needed to add an AllenBradley module. You will use your RSLogix 5000 programming software to install and
configure your HART module.
An Add-On profile is available on our website to ease the installation of the module, if
you choose not to use the generic module profile. The Add-On profile download also
includes an RSLogix 5000 sample project demonstrating how to read and write H ART
data to and from each channel. The sample project contains user defined data types,
configuration tags, input tags, output tags, and ladder samples needed to configure each
HART module. The topics discussed in this chapter include:
• Setting up the generic profile
• Using the Add-On profile
• Understanding user defined data types
• Adding the controller and program tags
• Using the provided ladder sample
Section 4.1
Setting up the
Generic Profile
The generic profile defines the module for the CompactBus, so that the right number of
input, output and configuration words are reserved. To co nfigure the generic profi le you
can use the profile already created in the sample project, see Figure 4-1, or follow the
procedures outlined below.
Figure 4-1 (Pre-Defined Generic Profile)
Compact IO™ Isolated HART Analog Input Module
User's Manual 0300215-03 Rev . A
4-2
1. Create a new RSLogix 5000 project file. Click on the new project icon or on the
FILE pull-down menu and select NEW. The following screen appears:
Figure 4-2
2. Choose your controller type and enter a name for your project, then click OK.
The following main RSLogix 5000 screen appears:
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