Siemens SIMATIC S7-1500 Manual page 40

Parameter data records
B.1 Parameter assignment and structure of the parameter data records
Data record structure
The figure below shows the structure of data record 64 for channel 0 as an example. The
structure is identical for channels 1 to 3. 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".
Image B-1
40
Structure of data record 64: Bytes 0 to 7
Analog Output Module AQ 4xU/I HF (6ES7532-5ND00-0AB0)
Manual, 03/2016, A5E36633205-AA