Siemens SIMATIC S7-1500 Manual page 52

Parameter data records
B.1 Parameter assignment and structure of the parameter data records
Output parameter STATUS
The module ignores errors that occurred during the transfer of parameters with the WRREC
instruction and continues operation with the previous parameter assignment. However, a
corresponding error code is written to the STATUS output parameter.
The description of the WRREC instruction and the error codes is available in the STEP 7
online help.
Operation of the module behind a PROFIBUS DP interface module
If the module is operated behind a PROFIBUS DP interface module, the parameter data
records 0 and 1 are not read back. You obtain the diagnostics data records 0 and 1 with the
read back parameter data records 0 and 1. You can find additional information in the
Interrupts section of the manual for the PROFIBUS DP interface module on the Internet
(http://support.automation.siemens.com/WW/view/en/78324181).
Assignment of data record and channel
The parameters in data records 0 to 7 and in data record 8 are available for 1x 8-channel
configuration and are assigned as follows:
● Data record 0 for channel 0
● Data record 1 for channel 1
● ...
● Data record 6 for channel 6
● Data record 7 for channel 7
● Data record 8 for the reference channel (COMP)
For configuration 8 x 1-channel, the module has 8 submodules with one channel each and
one submodule for the reference channel. The parameters for the channel are available in
data record 0 and are assigned as follows:
● Data record 0 for channel 0 (submodule 1)
● Data record 0 for channel 1 (submodule 2)
● ...
● Data record 0 for channel 6 (submodule 7)
● Data record 0 for channel 7 (submodule 8)
● Data record 0 for the reference channel (COMP) (submodule 9)
Address the respective submodule for data record transfer.
52
Analog input module AI 8xU/I/RTD/TC ST (6ES7531-7KF00-0AB0)
Manual, 09/2016, A5E03484864-AD