Parameter server

In order to be able to use the functionality of the parameter server, both the IO-Link master and the IO-Link device must be specified to V1.1. The IO-Link revision of the device can be read for the individual port under Settings. All IO-Link masters from Beckhoff with current firmware support the IO-Link specification V1.1.

• The parameter server in the IO-Link master contains parameter data that are saved in the IO-Link device. The memory capacity is max. 2 kbyte (including header).
  If the IO-Link device is exchanged, then the data are loaded from the parameter server into the new device. The requirement for this is that the device is of the same type (VendorID and DeviceID must be the same).
• If a new IO-Link device is configured, then the IO-Link master loads the parameters from the IO-Link device into the parameter server when starting for the first time.
  Data from other IO-Link devices that are already configured (VendorID and DeviceID do not correspond to the configured device) are overwritten.
• At each further start the IO-Link master uses a checksum to check whether the data in the parameter server correspond to those on the IO-Link device and if necessary downloads them to the device.
• If the parameters change during the device runtime, this can be reported to the Master via the store button (ParamDownloadStore). The master then starts the parameter server with an upload.
• By default the event is not set each time the parameters are written, therefore the end of the parameterization procedure has to be reported to the IO-Link device via the store button (ParamDownloadStore).
  The IO-Link device then sends the corresponding event to the master. The data are loaded into the parameter server.
• In the case of a pre-programmed IO-Link device, no download takes place from the parameter server to the device.