Diagnostics data of signal modules
B.2 Structure and content of diagnostics data, byte 0 and up
S7-300 Module data
586 Manual, 06/2017, A5E00105505-AJ
Bytes 4 to 6 info block (data record 1)
Bytes 4 to 6 form the info block, which contains information relating to the channel type, the
length of the diagnostic information, and the number of channels.
Figure B-3 Bytes 4 to 6 of diagnostics data