12 Bit - Siemens SIMATIC ET 200C Manual

Fault Diagnostics with the IM 308-C
Using STEP 5 to Diagnose Problems (Station Diagnostics), Continued
Table 8-7 Structure of Station Diagnostics for ET 200C; AI 4/8
Byte
Diagnostics byte 0
Diagnostics byte 1
Diagnostics byte 2
Diagnostics byte 3
Diagnostics byte 4
Diagnostics byte 5
Diagnostics byte 6
Diagnostics byte 7
Diagnostics byte 8
Diagnostics byte 9
Diagnostics byte 10
Diagnostics byte 11
Diagnostics byte 12
Diagnostics byte 13
Diagnostics byte 14
Diagnostics byte 15
Diagnostics byte 16
Diagnostics byte 17
Diagnostics byte 18
Diagnostics byte 19
Diagnostics bytes 20 to 27
: Device-related diagnostics
8-8
Station status 1 – PROFIBUS DP standard
Station status 2 – PROFIBUS DP standard
Station status 3 – PROFIBUS DP standard
Master station number – PROFIBUS DP standard
Manufacturer identification (high) – PROFIBUS DP standard
Manufacturer identification (low) – PROFIBUS DP standard
Header (identification-related diagnostics)
Module fault vector
Header (device-related diagnostics)
S7 header (S7 alarm): limit value alarm 02
diagnostics alarm 01
Slot number
Reserved
Diagnostics alarm
System-specific diagnostics
System-specific diagnostics
Free
System-specific diagnostics
Channel type
Length of diagnostics per chan-
nel
Number of channels
Channel error vector
Channel-specific diagnostics

12 Bit

Content
H
H
Limit value alarm
Limit value overshoot
Limit value undershoot
Free
Free
ET 200C Distributed I/O Station
EWA 4NEB 812 6119-02b