Allen-Bradley 1794-IE8H User Manual Page 36
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Publication 1794-UM063A-EN-P - March 2006
2-12 Configurable FLEX I/O Analog Module Features
Understand Image Table
Mapping and Bit/Word
Descriptions
Bit Descriptions
Use the table below to understand bits used in image table mapping and
bit/word descriptions. Complete definitions of these feature documented
below can be found in Chapter 2.
Table 2.5 Bit/Word Descriptions
Bit(s) Location Definition
Ch 1794-IE8H Input and output maps
1794-OE8H Input and output maps
Channel
Ovr Alm 1794-IE8H Input map Overrange Alarm
Und Alm 1794-IE8H Input map Underrange Alarm
Rm Flt 1794-IE8H Input map Remote Fault
Lo Flt 1794-IE8H Input map Local Fault
Res Flg 1794-IE8H Input map
1794-OE8H Input map
Response Flag
U/D 1794-IE8H Output map Up/down
Flt Md 1794-IE8H Output map Fault Module
Cd Flg 1794-IE8H Output map
1794-OE8H Output map
Command Flag
Flt Alm 1794-OE8H Input map Fault Alarm
Glbl Rst 1794-OE8H Output map Global Reset
Lo Flt Md 1794-OE8H Output map Local Fault Module
Alg Flt Ste 1794-OE8H Output map Analog Fault State
Lth Rty 1794-OE8H Output map Latch Retry
Dig Flt Ste 1794-OE8H Output map Digital Fault State
Alg Dig Md 1794-OE8H Output map Analog Digital Module
Diagnostic
Status
1794-IE8H Input map
1794-OE8H Input map
Diagnostic Status
HRBD 1794-IE8H Input map
1794-OE8H Input map
HART Rebuild Flag
HRB 1794-IE8H Input map
1794-OE8H Input map
HART Readback Flag
HFAIL 1794-IE8H Input map
1794-OE8H Input map
HART Failure Flag
HTMT 1794-IE8H Input map
1794-OE8H Input map
HART Transmitter Flag
HCM 1794-IE8H Input map
1794-OE8H Input map
HART Communication
Flag
- 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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