Siemens SIMATIC ET 200S Manual page 50

Brief Instructions on Commissioning ET 200S
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: lit
Power module:
-- PWR: off ⇒ No load voltage at power module
-- SF: lit ⇒ diagnostic message exists.
I/O modules in the potential group:
-- LEDs: lit
3. Evaluate the diagnosis.
Result:
-- Station status 1 (byte 0): Bit 3 is set ⇒ External diagnostics
-- ID-related diagnostics: Byte 7.0 is set ⇒ slot 1
-- Channel-specific diagnosis:
Byte 35.0 to 35.5: 000000
Byte 37.0 to 37.4: 10001
4. Switch on the load voltage on the power module again, and evaluate the
diagnosis again.
Result:
-- Status LEDs on the IM151-1 STANDARD:
SF: Off
-- Status LEDs on the power module:
PWR: on
SF: Off
-- Status LEDs on the I/O module:
LEDs: Off
-- The diagnostic message is deleted.
2-8
⇒ slot 1
B
⇒ encoder or load voltage missing
B
ET 200S Distributed I/O System
EWA-4NEB 780602402-12