B.2 Structure And Content Of Diagnostics Data Bytes 0 To 7 - Siemens SIMATIC S7-300 Manual

Diagnostics data of signal modules

B.2 Structure and content of diagnostics data bytes 0 to 7

B.2 Structure and content of diagnostics data bytes 0 to 7
B.2
Introduction
The section below describes the structure and content of the various bytes in diagnostics
data. General rule: An error is indicated by a logic "1" at the relevant bit.
Bytes 0 and 1
Figure B-1
Module classes
The table below lists the module class IDs (bits 0 to 3 in byte 1.)
Table B-1 Module class IDs
ID
0101
0110
1000
1100
1111
B-2
Bytes 0 and 1 of diagnostics data
Module class
Analog module
CPU
Function module
CP
Digital module
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04