Siemens CPU 31 Series Technical Data Manual page 154

Technical data of CPU 31xC
6.6 Technical data of the integrated I/O
Figure 6-8
Parameter for technological functions
The parameters for the respective function are found in the Manual
6-42
Structure of record 1 for standard AI/AO (length of 13 bytes)
Technological Functions
CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06
.