ibaPDA systems configured as "non-synchronized slaves" (slave without master) can only be included in a multistation network if other participants (masters or synchronized slaves) support communication with non-synchronized slaves.

Information on configuration can be found in Configuring the multistation master and Configuring a synchronized slave.

Since a non-synchronized slave does not have an FO link for synchronization, only multistation mode and communication can be configured.

  1. Under Multistation mode, select the option "Non-synchronized slave” (Slave without Master).

  2. Under Non-synchronized systems (Unsynchronized stations), select the communication protocol to be used.

    You can choose between UDP multicast and UDP unicast.

    • Select UDP multicast if you want to include all participants in the network.

    • Select UDP unicast if you only want to reach specific participants.

  3. If you are using UDP unicast, follow the steps unter Configuring communication via UDP unicast.

  4. If you are using UDP multicast follow the steps under Configuring communication via UDP multicast.

Configuring communication via UDP multicast

  1. First, in the Local IP address field, select the network card in the local ibaPDA server that is to be used for communication with non-synchronized slaves.

    Make your selection based on the IP address in the selection list, which contains all configured IP addresses of the ibaPDA server.

  2. If necessary, set the Multicast IP address and port number that the stations should use for exchanging multicast messages.

    All participants in the multistation network must use the same port number.

  3. With the TTL (Time To Live) parameter you can define how many routers a multicast message can pass through. Ideally, TTL = 1, i.e., even the non-synchronized slaves are directly connected to the multistation LAN.
Configuring communication via UDP unicast

  1. If necessary, change the port number for UDP unicast.

    The port number is preset to 9177.

  2. In the Non-synchronized systens (Unsynchronized slave stations) table, you can add the desired participants with which the local system should communicate.

    These can be non-synchronized slaves or ibaPDA systems for which communication with non-synchronized slaves via UDP unicast has been activated.