Siemens SIMATIC S7-300 Reference Manual page 510

Structure of data record 1
The figure below shows the structure of data record 1 for the parameters of the
analog input/output modules.
You activate a parameter by setting the corresponding bit in byte 0 and 1 to "1".
Figure A-19
A-42
7
Byte 0
7
Byte 1
Channel 2
Channel 3
7 4 3
Byte 2
Byte 3
Byte 4
Byte 5
Measuring
Method
7 4 3
Byte 6
Byte 7
Output type
Byte 8
: :
Byte 13
Data Record 1 for Parameters of the Analog Input/Output Modules
0
Not relevant
0
Reset Time
Set the same parameters for
all channels.
Channel 0
Channel 1
0
Meas. channel 0
Meas. channel 1
Meas. channel 2
Meas. channel 3
Measuring
Range
0
Output channel 0
Output channel 1
Output Range
Not relevant
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03