Rockwell-automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Instrukcja Użytkownika Strona 25
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Publication 1794-UM065B-EN-E - September 2010
Configurable FLEX I/O Analog Module Features 13
Fault Alarm
Fault Alarm selects whether the channel fault detection is enabled or disabled.
There is a 100 Hz (10 ms) filter for wire off or lead break detection.
Use your programming software to set the Fault Alarm. Set the feature bit to 0
to disable the alarm. Set the bit to 1 to enable wire off/lead break fault
detection.
Understand Image Table
Mapping and Bit/Word
Descriptions
All Allen Bradley FLEX I/O modules have a sixteen word table of Real Time
Data (RTD) to be transferred between the controller and the I/O module.
4mA as
4…20 mA
0.1% of
4…20 mA
2…22 mA 2000…22000
(2.000…22.000 mA)
1000/
1.0 µA
Min=2 mA
Max=22 mA
hold
Last=hold
FS value
5 4…20 mA — 4…20 mA Not assigned
6 4…20 mA 4…20 mA Not assigned
7 Unsigned
integer as
4…20 mA
0.03% of
4…20 mA
4…20 mA 0…65535
(4…20 mA)
4095/
0.244 µA
Min=4 mA
Max=20 mA
hold
Last=hold
FS value
8 0…20 mA 0…20 mA Not assigned
9 0…20 mA 0…20 mA Not assigned
10 0…20 mA 0…20 mA Not assigned
11 0…20 mA 0…20 mA Not assigned
12 4…20 mA Not assigned
13 4…20 mA Not assigned
14 % as
4…20 mA
0.16% of
4…20 mA
2…22 mA -1250 … +11250
(2’s complement)
(-12.50% …
+112.50%)
625/
1.6 µA
Min=2 mA
Max=22 mA
hold
Last=hold
FS value
15 4…20 mA 4…20 mA Not assigned
1794-OF8IH Data Formats
Data
Format
Format Resolution Full
Output
Range
Module Data Processing Data Table Value
(Interpretation)
Count per
mA/
Resolution
Analog Fault
State
Output =
datatable
(
1000
)
Output = 16
datatable
(
65535
)
+ 4
Output = 16
datatable
(
10000
)
+ 4
- Analog Modules 1
- Important User Information 2
- Summary of Changes 3
- Related Documentation 5
- Table of Contents 7
- 1794-IF8IH and 1794-OF8IH 8
- Table of Contents iii 9
- Table of Contents v 11
- What FLEX I/O Analog 13
- Modules Do 13
- Communicate with 14
- Programmable Controllers 14
- Physical Features of 15
- Your Module 15
- Use Alarms on the Input 15
- Overrange Alarm 16
- Underrange Alarm 16
- Remote Fault Alarm 16
- Local Fault Alarm 17
- Use the HART Capabilities 18
- HART Implementation 18
- Features 19
- Select Your Analog Input 20
- Module Operating Features 20
- Data Format 21
- Select Your Analog Output 22
- Latch Mode 23
- Global Reset 23
- Diagnostic Data error 11 24
- = data out of range 24
- Understand Image Table 25
- Mapping and Bit/Word 25
- Descriptions 25
- ATTENTION 27
- Install the Module 28
- Mount on a Panel or Wall 30
- Description Description 31
- IMPORTANT 32
- Label here 33
- Wire the Terminal Base 34
- Connect Wiring to the FLEX 34
- I/O HART Analog Modules 34
- Terminal Base Unit 35
- Ground the Module 36
- Use Programming Software 37
- About the ControlNet and 38
- EtherNet Adapters 38
- Communication Over the 38
- FLEX I/O Backplane 38
- Scheduled Data Transfer 39
- Unscheduled Data Transfer 39
- Module I/O Mapping 39
- I/O Structure 40
- Fault State Data 40
- Device Actions 40
- Data Transfer Types 43
- Configuration Parameters 44
- Byte Order (2 of 2 bits) 47
- Examples 49
- Fault Mode (8 of 1 bit) 50
- Low Alarm Limit (8 of 16 bit) 54
- Real Time Data (RTD) 57
- Profile, Primary Input 57
- Parameters 57
- Profile, Primary Status 58
- High Alarm (8 of 1 bit each) 60
- Low Alarm (8 of 1 bit each) 60
- Loop Alarm (8 of 1 bit each) 61
- HART Status Fields 63
- Secondary Input Data 64
- Table, Cyclic EDT Input 64
- HART PV Status (8 of 8 bits): 67
- Bit 5 Reserved 68
- Bit 6 Reserved 68
- Bit 7 Reserved 68
- HART PV Status 68
- Interpret the Status 69
- Indicators 69
- Module Configuration for 69
- Little Endian Byte Order 75
- Word Swap BYTE ORDER 75
- Profile, Status Parameters 82
- Fault Alarm (8 of 1 bit each) 83
- Diagnostic Data (1 of 8 bits) 83
- Profile, Output Parameters 85
- Global Reset (1 of 1 bit) 86
- Status Indicators 87
- Configure Module Messaging 89
- HART Configuration Quick 90
- Field Value Definition 100
- HART Failed Reason Code 104
- Chapter Summary 106
- Troubleshoot Your Module 107
- FLEX I/O HART Module Commands 109
- Commands 110
- Universal Commands 110
- Common Practice 110
- Device-specific Commands 111
- Appendix 113
- Overview 113
- Message Structure 113
- Burst Mode (not supported) 114
- Start Character 115
- HART Address 115
- HART Command 115
- Byte Count 116
- Check Byte 116
- Response Code 116
- Communication 127
- HART Frame Enhancements 130
- Background Information 131
- Configuration 132
- HART Disable 133
- Channel Data Format 133
- Channel Data Formats 134
- Digital Filters 135
- High Alarm Limit 138
- Low Alarm Limit 138
- Remote High High Alarm Limit 138
- Input Map 139
- High Alarm 140
- Low Alarm 140
- Out of Range 141
- Second Alarm 141
- Diagnostic Status 141
- HART Fault 142
- HART Current Fault 142
- HART Transmitter Present 143
- Local Fault Mode 147
- Digital Mode 152
- Digital Fault Mode 153
- Analog Fault Value 153
- HART Command 3 Disable 153
- Digital Data 154
- Fault Reset 154
- Analog Data 154
- 152 Index 160
- How Are We Doing? 161
- BUSINESS REPLY MAIL 162
- Rockwell Automation 164
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