Location:
<WorkspaceDirectory>\DataFiles\xio.Modbus.DeviceDefinitions.dat
The Modbus device manager checks the availability of Modbus TCP devices. It tries to connect to the defined devices and verifies whether they can be reached or not. If a connection to a Modbus device fails, the value of the corresponding Server Item that represents the device within the server is set to false. After having successfully established a connection to the Modbus device, this connection is continuously monitored by using a heart-beating mechanism. If a Modbus device is not reachable anymore, the corresponding Server Item is set to false and all Modbus datapoint that are assigned to this device are set to invalid.
The structure of the Modbus device definition file is as follows:
...