Replacing A Module; Uninstalling The Cp 243-1 - Siemens CP 243-1 Operating Instructions Manual

2.7

Replacing a module

When the CP 243-1 (6GK7243-1EX01-0XE0) module is replaced, no new programming is
required on the S7 communication side since the configuration data and the user program
are stored retentively on the S7-200 CPU. The CP 243-1 must be programmed again for the
IT functions since the configuration files for the IT services are stored in the file system of the
CP 243-1.
2.8

Uninstalling the CP 243-1

If you attempt to install or remove the CP 243-1 or other devices while they are on, you may
receive an electric shock or the devices may not work properly.
If the power for the CP 243-1 and all connected devices is not switched off while the
devices are being installed/removed, this may cause injury and/or property damage.
Take all necessary safety precautions and make sure that the power is turned off before
you install or remove a device.
Follow the steps below to remove the CP 243-1 or any other expansion module of the S7-
200:
1. Turn off the power supply of the S7-200 CPU, the CP 243-1 and all expansion modules.
2. Disconnect all cables and wires from the device you want to remove.
3. Open the front cover and disconnect the ribbon cable from the adjacent modules.
4. Remove the screws or open the catch and remove the module from the panel or the DIN
CP 243-1
Operating Instructions, 03/2012, C79000-G8976-C244-02
WARNING
rail.
Installation and commissioning
2.7 Replacing a module
51