knxnetIp-GroupDataManage

These properties configure the Group Data Manager view.
Figure 18.   Group Data Manager properties
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To access these properties, expand Config > Drivers > KnxNetwork in the station Nav tree, right-click the KnxDevice node, click Views > AX Property Sheet, and expand Group Data Manager.

To configure the hidden L Data Worker and Hop Count properties you must first turn off the hidden config flag. To do so, right-click Group Data Manager in the Nav tree, click Views > AX Slot Sheet, right-click the hidden property row(s) in the table, click Config Flags, un-check the Hidden flag, and click OK.

Property Value Description
L Data Worker, Max Queue Size (hidden) 1, 2, 3 ... max Defaults to 1000 Defines the size of the Group Data Operation Queue that holds a list of Group Address reads or writes waiting to be started as soon as the comms stack is able.

L Data Worker stands for the Link Data Worker.

Hop Count (hidden) 0, 1 , 2 ... 7 (Defaults to 6) Defines a counter for managing frames. Each communications frame contains a hop count. A frame’s hop count is decremented by the KNXnet/IP Router devices to avoid looping messages. When it becomes zero, the frame is discarded from the KNX network.
Max Pending Reads 1, 2, 3 ... 10 (Defaults to 4) Controls how many concurrently Active Group Address Read Operations are allowed. Active means that a particular operation has reached the head of the Group Data Operation Queue and the Comms.Stack has sent an L_Data_req message to the KNXnet/IP Interface devices and received an L_Data_con reply, but has not yet received a corresponding L_Data_ind message. This limit is intended to prevent the KNX twisted-pair line from being swamped with this driver’s traffic although there is no clear guidance on this in the KNX specifications.
Read Before Write Timeout 100ms ... 6secs (Defaults to 0.5 secs) Defines the amount of time to wait before timing out on a read-before-write. Read Before Write Timeout.