Allen-Bradley 1794-IE8H User Manual Page 13
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1 Publication 1794-UM063A-EN-P - March 2006
Preface
Why Read This Manual
This manual shows you how to use your FLEX I/O™ analog modules with
the ControlNet
™ products and ControlNet network, and EtherNet products
and EtherNet network. The manual helps you install, program, and
troubleshoot your module.
Who Should Read This
Manual
You must be able to program and operate a ControlNet product and
ControlNet network to make efficient use of a FLEX I/O module.
About the Vocabulary
In this manual, we refer to the:
• 1794-IE8H as the ’input module’
• 1794-OE8H as the ’output module’
What This Manual Contains
The following chart lists each chapter with its corresponding title and a brief
overview of the topics covered in that chapter.
Chapter Title Contents
1 About the FLEX I/O HART Analog
Modules
Describes module functionality and
physical features
2 Configurable FLEX I/O Analog Module
Features
Describes configurable module
features and configuration bits
3 Install Your FLEX I/O Analog Modules How to install and wire the modules
4 Input, Output and Configuration Files
for the Analog I/O Modules on the
ControlNet Network
Describes how to use these I/O
modules over the ControlNet
network
5 Calibrate Your Module Lists the tools needed, and the
methods used to calibrate the
module
6 Troubleshoot the FLEX I/O Analog I/O
Modules
How to use the indicators to
troubleshoot your module
Appendix Title Contents
A Specifications Outlines module specifications and
accuracy
B FLEX I/O HART Module Commands Explains how to program the analog
modules
C Additional HART Protocol Information Discusses the HART protocol and
provides references for additional
information about the protocol
- FLEX I/O HART 1
- Analog Modules 1
- Important User Information 2
- ATTENTION 3
- AVERTISSEMENT 4
- IMPORTANT 5
- Table of Contents 7
- Table of Contents 2 8
- Table of Contents 3 9
- Table of Contents 4 10
- Table of Contents 5 11
- Table of Contents 6 12
- ™ analog modules with 13
- For Additional Information 14
- Preface 3 15
- Preface 4 16
- What This Chapter Contains 17
- What the FLEX I/O Analog 17
- I/O Modules Do 17
- How FLEX I/O Analog 18
- Communicate with 18
- Programmable Controllers 18
- Physical Features of Your 19
- Analog I/O Module 19
- Use Alarms on the 19
- 1794-IE8H Module 19
- Data Format Alarm Example 20
- Remote Fault Alarm 21
- Local Fault Alarm 22
- How to Use the 23
- HART Capabilities 23
- HART Implementation 23
- Overview 23
- Chapter Summary 24
- Configurable FLEX I/O 25
- Analog Module Features 25
- Select Your 1794-IE8H 26
- FLEX I/O Analog Input 26
- Module’s Operating 26
- Features 26
- High Low Error Level 27
- Input Filter Cutoff 27
- Data Format 28
- Data Formats and Error Ranges 30
- Select Your 1794-OE8H 31
- FLEX I/O Analog Output 31
- Analog Digital State 32
- Analog Fault State Value 32
- Digital Fault State 32
- Diagnostic Data error 33
- 11=data out of range 33
- Understand Image Table 36
- Mapping and Bit/Word 36
- Descriptions 36
- (1794-IE8H) 38
- 1794-IE8H and -OE8H 43
- Extended Configuration 43
- Data Table 43
- HART Status Indicators 44
- HART Status Inhibit 44
- 50 or 60 Hz Filter 44
- Before You Install Your 47
- Analog Module 47
- Removal and Insertion 48
- Under Power 48
- Install the Module 48
- Mount on a DIN Rail 49
- Mount on a Panel or Wall 51
- Label Under Here 53
- Wire the Terminal Base 54
- Connect Wiring to the 54
- FLEX I/O HART Analog 54
- 4 to 20mA 55
- ATTENTIONATTENTION 56
- Ground the Module 58
- ControlNet Network 61
- Use Programming Software 62
- About the ControlNet 62
- Communication Over the 63
- FLEX I/O Backplane 63
- Unscheduled Data Transfer 64
- Module I/O Mapping 64
- I/O Structure 64
- Adapter Status Word 65
- Fault State Data 66
- Device Actions 67
- Calibrate Your Module 69
- Tools and Equipment 70
- 1794-IE8H Calibration 70
- Command Structure 71
- 2 Calibrate gain at 25 °C 72
- °C Channel-Mask 73
- 25 °C according to 74
- 25 °C is in process 75
- Read/write 76
- Channel 1 77
- . During the 78
- 1794-OE8H Calibration 79
- Calibration) 86
- Troubleshoot the FLEX I/O 89
- Analog I/O Modules 89
- Specifications 91
- A-2 Specifications 92
- FLEX I/O HART Module Commands 93
- Device-Specific Commands 95
- Message Structure 99
- Transaction Procedure 100
- Burst Mode (not supported) 100
- Preamble 101
- Start Character 101
- HART Address 101
- Byte Count 102
- Check Byte 102
- HART Command 102
- Response Code 103
- Universal Commands 105
- Common Practice 107
- Commands 107
- Appendix 115
- What This Appendix 115
- Contains 115
- Communication 115
- Differences Between 117
- Attributes and Assembly 117
- HART Frame Enhancements 120
- Background Information 121
- Configuration 122
- Filter Cutoff 124
- Up/Down Bit 125
- High and Low Error Level 125
- Square Root Threshold 127
- Analog Input Data 127
- Underrange Alarm 127
- Overrange Alarm 128
- Local Fault 128
- Remote Fault 128
- Diagnostic Status 129
- Analog Fault State 134
- Fault Mode 134
- Local Fault Mode 134
- Latch Retry Mode 135
- Analog Fault State Values 136
- Digital Output Data 136
- Global Output Data 136
- Analog Output Data 137
- Diagnostic Status Data 137
- HART Rebuild Bit 137
- Fault Alarm 138
- HART Failure 138
- HART Readback 138
- HART Communication 139
- HART Transmitter 139
- How Are We Doing? 141
- BUSINESS REPLY MAIL 142
- 2 Index 144
- Rockwell Automation 146
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