10.6
System integration via PLC (cyclical service)
The Mycom CPM 152 transmitter makes the
measured values (OUT) available cyclically
using the PROFIBUS-PA protocol. Other
PROFIBUS-PA parameters are made
available using the acyclical service.
Two so-called modules are available for the
data exchange with the PLC:
• Module 1: main measured value
• Module 2: temperature value measured
Command
Type
Function
Module 1
OUT
Read
Current measured value of process variable
in pH or mV and the corresponding status
- Status = 80
Hex
, devices OK
- Status = 0C
Hex,
warning or alarm active. The
information is transferred byte-by-byte in 5
bytes, with the last byte containing the status
information.
Module 2
OUT
Read
Current measured value of process variable
in pH or mV and the corresponding status
- Status = 80
Hex
, devices OK
- Status = 0C
Hex,
warning or alarm active. The
information is transferred byte-by-byte in 5
bytes, with the last byte containing the status
information.
pm152e10.chp
mycom CPM 152
PROFIBUS interface
Hauser
73
