Modicon

[QayyumChaudry]

Need help for PIDFF parameters

How to assign %MW to P,I and D parameters to connect to Scada using modbus Protocol.

 

[Saffa]

You can assign a %MW address directly to the structure. Then each element gets a sequential address. This can consume a lot of address space though, so i would normally suggest creating new variables for P, I etc with addresses, then use MOV instruction to move them into the appropriate elements of the parameter structure.

Remember that %MW0 = 400001.

You also need to have mixed topological option enabled for the processor.

 

[chud]

There is also an Alias option to link variables inside a ddt