Siemens ET 200S Manual page 176

Commissioning and Diagnostics
Example of a Diagnostic Interrupt
Example:
The 4DI electronic module reports the "short circuit" diagnostic interrupt on channel 2.
Byte x
Byte x+1
Byte x+2
Byte x+3
Byte x+4
Byte x+5
Byte x+6 and x+7 always "0"
Figure 6-30
6-52
7 6 5 4 3 2 1 0
0 0 0 1 1 0 1 1
Length of the interrupt section = 27 bytes
7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 1
Diagnostic interrupt
7 6 5 4 3 2 1 0
0 0 0 0 1 0 1 0
Slot number 10
7 6 5 4 3 2 1 0
0 0 0 0 1 0 0 1
There is at least 1 error
Interrupt sequence number = 1
7 6 5 4 3 2 1 0
0 0 0 0 1 0 0 0
Channel error
7 6 5 4 3 2 1 0
0 0 0 1 1 1 1 1
Digital electronic module
Channel information available
Example of a Diagnostic Interrupt
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07