Siemens SIMATIC ET 200iS Manual page 52

Brief Instructions on Commissioning
3.14 Wire break of the NAMUR encoder connected to the digital input
module
1. Remove the wire from terminal 1 of the first of the three electronics modules
4 DI NAMUR.
2. Monitor the status LEDs
IM 151-2:
SF: lit
–
Electronics module 4 DI NAMUR
–
SF: lit -> diagnostic message exists
–
1: off -> output is not activated
–
3. Evaluate the diagnostic message
Result:
Station status 1 (byte 0): Bit 3 is set -> External diagnostics
–
ID-related diagnostics: Byte 7.3 is set -> slot 4
–
Channel-related diagnostics:
–
Byte 25: 10000011
Byte 26: 01000000
byte 27: 00110
4. Secure the wire to the BERO again in terminal 1 and evaluate the diagnostics
again:
Status LED IM151-2
–
SF: off
Status LEDs electronics module 4 DI NAMUR:
–
SF: off
1: off/on
The diagnostic message is deleted.
–
3-18
-> slot 4
B
-> channel 0
B
-> wire break
B
ET 200iS Distributed I/O Station
A5E00087831-02