Siemens DI 16x24VDC ST Manual page 26

Parameter data record
A.1 Parameter assignment and structure of parameter data record
Parameters
The figure below shows the structure of the parameters for channels 0 to 15.
You enable a parameter by setting the corresponding bit to "1".
Image A-3
26
Structure byte x to x+1 for the channels 0 to 15
Digital input module DI 16x24VDC ST (6ES7131-6BH00-0BA0)
Manual, 12/2015, A5E03573442-AD