Structure Of The Station Diagnostics For Et 200C - Siemens SIMATIC ET 200C Manual

Fault Diagnostics with the IM 308-B
Using STEP 5 to Diagnose Problems (Continued)
Station
16 bytes per slave station are reserved for the station diagnostics. The 16 by-
Diagnostics tes are organized into 8 words.
To avoid confusion, the 2 diagnostics bytes of the diagnostics words are re-
ferred to below as "Diagnostics address" and "Diagnostics address +1".
Table 7-5

Structure of the Station Diagnostics for ET 200C

Code Diagnostics address
0
1
2
3
4 Reserved (byte 1)
5
6
7
7-8
Station status 1
Station status 3
Manufacturer ID
Header
(device-related
diagnostics)
Free (byte 3)
Free (byte 5)
Free
Diagnostics address + 1
Station status 2
Master address
Device-related diagnostics (byte 0)
16DI/16DO: group diagnostics
8DI, 8DO, 8DO/2A: free
Device-related diagnostics (byte 2)
16DI/16DO: free
8DI, 8DO, 8DO/2A: individual
diagnostics
Free (byte 4)
Free (byte 6)
Free
ET 200C Distributed I/O Station
EWA 4NEB 812 6119-02b