Siemens SIMATIC ET 200S - Example of a Diagnostic Interrupt

Commissioning and Diagnostics
6-52
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Example of a Diagnostic Interrupt
Byte x
76 054321
Length of the interrupt section = 27 bytes
11011000
Example:
The 4DI electronic module reports the ”short circuit” diagnostic interrupt on channel 2
Byte x+1
76 054321
Diagnostic interrupt
00001000
Digital electronic module
Byte x+2
76 054321
Slot number 10
10010000
Byte x+3
76 054321
Interrupt sequence number = 1
10001000
Byte x+4
76 054321
Channel error
10000000
Byte x+5
76 054321
Channel information available
11111000
There is at least 1 error
Byte x+6 and x+7 always ”0”
Figure 6-30 Example of a Diagnostic Interrupt