Siemens SIMATIC ET 200iS Manual page 158

Commissioning and Diagnostics
Example of a Diagnostic Interrupt
Example: The 4DI NAMUR electronics module reports the "wire break" diagnostic
interrupt on channel 2"
Byte x
0 0
Byte x+1
0 0 0 0 0 0 0 1
Byte x+2
0 0 0 0 1 0 1 0
Byte x+3
0 0 0 0 1 0 0 1
Byte x+4
0 0 0 0 1 0 0 0
Byte x+5
0 0 0 1 1 1 1 1
Bytes x+6 and x+7 always "0"
Figure 7-17 Example of a Diagnostic Interrupt
7-42
0 1 1 0 1 1
Length of interrupt part = 27 bytes
Diagnostic interrupt
Slot number 10
There is at least one error
Interrupt sequence number =1
Channel error
Digital electronics module
Channel information exists
ET 200iS Distributed I/O Station
A5E00087831-02