13 Maintenance
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13.5Replacement of the Device with a Parameterization Server
The IO-Link protocol provides an automated process for transferring data when a device is replaced. For
this Data storage mechanism, the IO-Link master mirrors all setting parameters for the device in a sepa-
rate non-volatile memory. When a device is swapped for a new one of the same type, the setting parame-
ters for the old device are automatically saved in the new device by the master.
ü The device is operated on a master with IO-Link version 1.1 or higher.
ü The Data storage feature in the configuration of the IO-Link port is activated.
4 Ensure that the new device is restored to the factory settings before it is connected to the IO-Link
master. If necessary, reset the device to the factory settings.
ð The device parameters are automatically mirrored in the master when the device is configured using
an IO-Link configuration tool.
ð Changes to the parameters made in the user menu on the device or via NFC are mirrored in the mas-
ter.
Changes to the parameters made by a PLC program using a function module are not automatically mir-
rored in the master.
4 Manually mirroring data: After changing all the required parameters, execute ISDU write access to
the “System Command” parameter [0x0002] using the command “Force upload of parameter data
into the master” (numerical value 0x05) (see Data Dictionary).
Use the Parameterization server function of the IO-Link master to ensure that no data is lost
when switching the device.
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