Siemens Simatic ET 200S Operating Instructions Manual page 32

Brief instructions on commissioning ET 200S
2.1 Commissioning on PROFIBUS DP
Switching off load voltage on the power module
1. Switch off the load voltage on the PM-E 24 VDC (slot 1).
2. Observe the status LEDs.
3. Evaluate the diagnostics.
4. Switch on the load voltage on the power module again, and reevaluate the diagnostics.
2-8
IM151-1 STANDARD:
– SF: lights up
Power module:
– PWR: off → No load voltage available on the power module
– SF: lights up → a diagnostic message is pending.
I/O modules in the voltage group:
– LEDs: light up
Result:
– Station status 1 (byte 0): Bit 3 is set → external diagnostic
– ID-related diagnostics: Byte 7.0 is set → Slot 1
– Channel-specific diagnostics:
Bytes 35.0 to 35.5: 000000
Bytes 37.0 to 37.4: 10001
Result:
– Status LED on the IM 151-1 STANDARD:
SF: off
– Status LEDs on power module:
PWR: on
SF: off
– Status LEDs on I/O modules:
LEDs: off
– The diagnostic message is deleted.
→ Slot 1
B
→ sensor or load voltage missing
B
Operating Instructions, 12/2005, A5E00515771-03
ET 200S