Siemens SIMATIC ET 200M Operating Instructions Manual page 111

7.5 Replacing IM 153-4 PN
Initial situation
The IM 153-4 PN is installed. A new IM 153-4 PN of the same type should be installed.
Slot numbering
If you have provided the modules in your system with slot numbering, when replacing
modules you must remove the numbering from the old module and then reuse it in the new
module.
Requirement
When replacing the interface module, you must switch off the supply voltage on the defective
module.
CAUTION
Removing the IM 153-4 PN interface module
When you switch off the supply voltage to an ET 200M on PROFINET IO, the integrated
switch will also cause a failure of all downstream IO devices.
Removing a module
To remove the module, proceed as follows:
1. With the on / off switch of the power supply module to 0
2. Remove the PROFINET cable connector.
3. Remove the cable connector for the supply voltage.
4. Remove the SIMATIC Micro Memory Card from the module slot.
5. Loosen the fixing screws of the IM 153-4 PN.
6. Swivel out the IM 153-4 PN.
Installing a new module
Install the new module as follows:
1. Hang up the new IM 153-4 PN and swivel it downward.
2. Screw the module on securely.
3. Insert the PROFINET cable connector.
4. Take the SIMATIC Micro Memory Card containing the device name from the "old"
5. Insert the cable connector for the supply voltage.
6. Put the standby switch of the power supply module into the 1 position (output voltages to
ET 200M
Operating Instructions, 12/2008, EWA-4NEB780600602-08
( : output voltages 0 V).
interface module and insert it in the module slot of the "new" interface module.
rated value).
Maintenance and service
7.5 Replacing IM 153-4 PN
109