Siemens SIMATIC ET 200AL System Manual page 191

Maintenance
8.1 Replacing modules
Procedure
To replace an IO-Link I/O module, follow these steps:
1. Ensure that no current is flowing via the outputs.
2. Completely disconnect all cables connected to the IO-Link I/O module.
3. Completely remove the fixing screws of the module
4. Replace the IO-Link I/O module.
Note
"New" IO-Link I/O module
The removed IO-Link I/O module may only be replaced by a module of the same type.
5. Fasten the IO-Link I/O module with the screws with a torque of 1.2 Nm.
6. Connect all cables.
7. Turn the supply voltage on.
Observe the device number of the modules
If you mix up the IO-Link I/O modules when connecting them, this can cause personal injury
and property damage.
We recommend that you clearly label the IO-Link I/O modules with the device number.
The figure below shows a recommendation for the marking of the IO-Link I/O modules with
the device number.
①
Figure 8-1
Result
The IO-Link I/O module that was out of service starts up again automatically. When data
backup is set, the IO-Link master loads the parameter settings to the module.
48
WARNING
Recommendation for the marking of device numbers
Device number
IO-Link I/O modules
System Manual, 08/2021, A5E48755395-AB