READBACK, RCAS_OUT, POS_D, CHECKBACK, SP, RCAS_IN
Actual value, remote cascade output, discrete position, checkback, setpoint, remote cascade
input:
Input (master view)
Starting address 0 READBACK - floating point number
1
2
3
4 READBACK - status
5 RCAS_OUT - floating point number
6
7
8
9 RCAS_OUT - status
10 POS_D
11 POS_D - status
12 CHECKBACK
13
14
Output (master view)
Starting address 0 SP - floating point number
1
2
3
4 SP - status
5 RCAS_IN - floating point number
6
7
8
9 RCAS_IN - status
9.3.2.2 Diagnostics
Function
The positioner can report active information about its device status. These diagnoses are
important information that can be used by an automation system to initiate remedial measures.
Standard mechanisms of PROFIBUS-DP are used to transfer the diagnostics information and
report it actively to the class 1 master. PROFIBUS-DP has a protocol to transfer the information
that has higher priority than the useful data to the class 1 master.
Functions/operations using PROFIBUS PA
9.3 Cyclic data transfer
SIPART PS2 with PROFIBUS PA
Operating Instructions, 05/2019, A5E00127926-AC 217
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