Siemens SIMATIC Manual page 589

Analog input channel of the SM 331 module with diagnostic capability
Figure B-7
Analog output channel of the SM 332 module with diagnostic capability
Figure B-8
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
Diagnostic byte for an analog input channel of an SM 331 with diagnostic capability
Diagnostic byte for an analog output channel of an SM 332 with diagnostic capability
Diagnostics data of signal modules
B.3 Channel-specific diagnostics data
589