Maintenance; Replacing Modules - Siemens SIMATIC ET 200AL System Manual

Maintenance

8.1

Replacing modules

Replacing IO-Link I/O modules
The replacement of a module is not permitted during ongoing operation.
Property damage can occur
If you remove/insert modules while the power is connected, this can lead to undefined
states in your system.
The IO-Link I/O module may be damaged as a result.
Only remove or replace modules when the power is disconnected.
Always comply with the required standards and safety guidelines when configuring a
system.
If you use the restore function of the master, the master automatically provides the saved
parameters to the new module after module replacement. You have the following setting
options for module replacement:
• "Backup&Restore"
You have set the master port to "Backup&Restore". The new module behaves like the
replaced module because the master has saved the last parameter change using the
backup function.
• "Restore"
You have set the master port to "Restore". The new module applies the parameter settings
that were saved in the master at the time of the last back-up.
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
IO-Link I/O modules
System Manual, 10/2020, A5E48755395-AA
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