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124 Rockwell Automation Publication 1756-UM533C-EN-P - February 2011
Chapter 8 Getting HART Data By Using CIP MSG
See AppendixE on page 213 for an explanation of the engineering unit code
numbers.
Table 33 - Reply Packet - Request Succeeded
Offset Field Data Type Definition
0 Status USINT Command status
1 HARTCommandStatus HART Device reply Status Byte # 1 (response code)
2 HARTFieldDeviceStatus HART Device reply Status Byte # 2
3 HARTExtDevice Status Status Byte returned from Cmd 9 or 0 for 5.x rev HART devices
4
…7 PV REAL HART Primary variable
8…11 SV HART Secondary variable
12…15 TV HART Third variable
16
…19 FV HART Fourth variable
20 PV Units USINT Primary variable unit code
21 SV Units Secondary variable unit code
22 TV Units Third variable unit code
23 FV Units Fourth variable unit code
24 PV Assignment Code Primary variable assignment code
25 SV Assignment Code Secondary variable assignment code
26 TV Assignment Code Third variable assignment code
27 FV Assignment Code Fourth variable assignment code
28 PV Status 1 byte status from Cmd 9(Rev 6.x) or if Rev 5.x device:
16#C0 = Connected
16#00 = Not Connected
29 SV Status 1 byte status from Cmd 9 or if Rev 5.x device:
16#C0 = Connected and Device provides this value in CMD 3 (that is, does not
truncate)
16#00 = Not Connected
30 TV Status 1 byte status from Cmd 9 or if Rev 5.x device:
16#C0 = Connected and Device provides this value in CMD 3 (that is, does not
truncate)
16#00 = Not Connected
31 FV Status 1 byte status from Cmd 9 or if Rev 5.x device:
16#C0 = Connected and Device provides this value in CMD 3 (that is, does not
truncate)
16#00 = Not Connected
32
…35 Loop Current REAL Device reported digital loop current value. (Value from Cmd 3 for Rev 5.x devices
or Cmd 2 if Rev 6.x device)
Reply Size = 36 bytes