Siemens SIMATIC ET 200AL System Manual page 579

Replacing modules
What do you need to know when replacing modules?
When you replace the communication module CM 4xIO-Link 4xM12, you must transfer the
IO-Link parameter settings (master/device) again. You can transfer the IO-Link configuration
using S7-PCT or save it with the Master Backup function.
Master Backup
The "IO_LINK_MASTER" function block is used to read all relevant IO-Link device and
IO-Link master parameters. These can be stored retentively at a central location, such as in
a data block in the IO controller.
The status of the IO-Link devices or IO-Link ports stored in the IO-Link master can be
restored with the "IO_LINK_MASTER" function block.
As a result, the IO-Link ports and the IO-Link master are configured with the values stored in
the master backup.
A typical application is the restoration of parameters after replacement of the IO-Link master.
Note
Availability
Note that the Master Backup function is available only for IO-Link devices that are specified
for the IO-Link Standard as of V1.1.
You will find information on the Master Backup and Master Restore functions in section
"Master backup" of chapter "Integration into the automation system" of the IO-Link System
(https://support.industry.siemens.com/cs/ww/en/view/65949252) function manual.
Reference
You will find additional information on replacing modules in the system manual ET 200AL
distributed I/O system (http://support.automation.siemens.com/WW/view/en/89254965) in
the "Module" section.
You will find additional information on replacing IO-Link masters in the S7-PCT online help.
32
Communication module CM 4xIO-Link 4xM12(6ES7147-5JD00-0BA0)
7
Manual, 10/2017, A5E32352322-AE