Brief Instructions on Commissioning ET 200S
2-8
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Switching Off the Load Voltage on the Power Module
1. Switch off the load voltage on the PM-E 24 VDC (slot 1).
2. Watch the status LEDs.
IM 151 STANDARD:
– SF: Lights up
Power module:
– PWR: Off ⇒ No load voltage on the power module
– SF: Lights up ⇒ There is a diagnostic message.
I/O modules in the potential group:
– LEDs: Light up
3. Evaluate the diagnosis.
Result:
– Station status 1 (byte 0): Bit 3 is set ⇒ External diagnosis
– Module diagnosis: Bit 7.0 is set ⇒ Slot 1
– Channel-specific diagnosis:
Bits 35.0 to 35.5: 000000
B
⇒ Slot 1
Bits 37.0 to 37.4: 10001
B
⇒ No sensor voltage or load voltage
4. Switch on the load voltage on the power module again, and evaluate the
diagnosis again.
Result:
– Status LED on the IM 151-1 STANDARD:
SF: Off
– Status LEDs on the power module:
PWR: On
SF: Off
– Status LEDs on the I/O modules:
LEDs: Off
– The diagnostic message is deleted.
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