Allen-Bradley 1794-IE8H User Manual download pdf (Page 59)

Publication 1794-UM063A-EN-P - March 2006

Install Your FLEX I/O Analog Modules 3-13

Chapter Summary

In this chapter, we told you how to install your input module in an existing

programmable controller system and how to wire to the terminal base units.

Move to chapter 4 to learn about input, output and configuration files for the

HART analog I/O modules on the ControlNet network.

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 145 146

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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