Tab Link Layer

Configuration of

In order to provide flexible usage of control stations and substations as of AB 1.1 configuration of substations has been changed. As several substations can be operated with several Ethernet interfaces, select the Ethernet interface to be used from the pull-down menu. Enter the IP address to the control station and if required to another control station (redundant connection). If no IP address is defined, the substation accepts connection to any control station.

Note

This field is not available in the Link Layer tab of control stations. Selection of ETH interface is only possible for substations. The control station is always configured on both interfaces by default.

Timeout Settings

T1, T2, T3: The values for the connection control and message replication; timeout1/2/3.

Buffer Settings

This parameter gives the maximum number of outstanding messages and acknowledgement behaviour.

Send buffer (k): Maximum difference receive sequence number to send state variable.

Rec buffer (w): Latest acknowledge after receiving w I format APDUs.