Siemens SIMATIC S7-1500 Manual page 34

Parameter data records
B.1 Parameter assignment and structure of the parameter data records
Assignment of data record and channel
For the configuration as a 1 x 16-channel module, the parameters are located in data
records 64 to 79 and are assigned as follows:
● Data record 64 for channel 0
● Data record 65 for channel 1
● ...
● Data record 78 for channel 14
● Data record 79 for channel 15
For the configuration as a 2 x 8-channel module, the module has 2 submodules with eight
channels each. The parameters for the channels are located in data records 64 to 71 and
are assigned as follows:
● Data records 64 to 71 for channels 0 to 7 (submodule 1)
● Data records 64 to 71 for channels 8 to 15 (submodule 2)
Address the respective submodule for data record transfer.
Data record structure
The example in the figure below shows the structure of data record 64 for channel 0. The
structure of channels 1 to 16 is identical. The values in byte 0 and byte 1 are fixed and may
not be changed.
Enable a parameter by setting the corresponding bit to "1".
Figure B-1
34
Structure of data record 64: Bytes 0 to 3
Digital output module DQ 16x230VAC/2A ST Relay (6ES7522-5HH00-0AB0)
Manual, 07/2017, A5E34934019-AC