When using the Read_DDT function block for the BMENUA0100 module, which variables of the block should have not have the Exchange on STBY attribute ticked?


09 August 2023

If the BMENUA0100 is used in an M580 hot standby system, ensure that the Exchange on STBY attribute is unticked for the GEST and RECP_DDT variables.

Data editor
This will allow the Read_DDT function block (asynchronous communication EFB) to automatically resume operation after a switchover.