Parameter Assignment And Structure Of The Parameter Data Record - Siemens SIMATIC ET 200SP Manual

A.2

Parameter assignment and structure of the parameter data record

Parameter assignment in the user program
You can reassign the module parameters in RUN. For example, the voltage or current values
of selected channels can be changed in RUN without having an effect on the other channels.
Changing parameters in RUN
The "WRREC" instruction is used to transfer the parameters to the module using data record
128. The parameters set in STEP 7 are not changed in the CPU, which means that the
parameters set in STEP 7 will be valid again after a restart.
Output parameter STATUS
The module ignores errors that occur during the transfer of parameters with the "WRREC"
instruction and continues operation with the previous parameter assignment. The STATUS
output parameter contains a corresponding error code.
You will find a description of the "WRREC" instruction and the error codes in the STEP 7
online help.
Structure of data record 128 for entire module
Note
Channel 0 includes the diagnostics enable for the entire module.
Image A-1
Analog input module AI 2xI 2/4-wire ST (6ES7134-6GB00-0BA1)
Manual, 12/2015, A5E36104399-AA
A.2 Parameter assignment and structure of the parameter data record
Structure of data record 128 for entire module
Parameter data record
29