Siemens SIMATIC ET 200M Manual page 156

3. Disconnect the wiring.
4. Remove the fixing screws of the IM 153-2/-2 FO.
5. Swing the IM 153-2/-2 FO out.
Installing a New Module
Install the new module as follows:
1. Set the same DP address on this IM 153-2/-2 FO as for the old IM 153-2/-2 FO.
2. Hook the new IM 153-1/-2 FO onto the rail and swing it down into place.
3. Screw the module on securely.
4. Wire the IM 153-2/-2 FO.
5. Screw the bus connector tight.
6. Put the standby switch of the power supply module into the 1 position (output
voltages to rated value).
Response of the ET 200M After Module Replacement
If there is an error after the modules have been replaced, you can have the cause
displayed in the diagnostic buffer with STEP 5 or STEP 7.
In the Case of Redundancy:
Note
If the active IM 153-2/-2 FO ("ACT" LED on) is replaced, the I/O system will only
continue without interruption if on the passive IM 153-2/-2 FO the BF LED neither
comes on nor flashes, or if the SF LED does not flash at 0.5 Hz (see also Table
6-6 on page6-11).
Have you replaced an active IM 153-2/-2 FO
("ACT" LED on)?
A switchover took place in the ET 200M to the
other IM 153-2/-2 FO, and data traffic continues
between it and its DP master.
Does the new IM 153-2/-2 FO have a different version to the one that wasn't replaced?
If after replacement, the replaced IM 153-2/-2 FO goes into STOP (all the LEDs flash), the releases are
not compatible. In this case you must switch off the ET 200M and upgrade the two IM 153-2/-2 FO or use
a compatible version.
Contact your Siemens partner.
Distributed I/O Device ET 200M
EWA-4NEB780600602-06
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Have you replaced a passive IM 153-2/-2 FO
("ACT" LED off)?
No change in data traffic: It continues between the
active IM 153-2/-2 FO and its DP master.
Maintenance
7-7