Allowing Local and Remote control of integer/analog value?

What i can see, you want to change 4 speed outputs with a counter. Local side you use the up/down buttons and remote you want to use an analog value ? Is it possible to use remote buttons as Modbus coils ? They can be used as digital NI and you just have to use OR blocks with the local up/down buttons.

If this is not possible, then it might be possible to use VM mapping of the actual counter value, which then can be changed directly over Modbus as 32 bit unsigned integer. NAI only have 16 bits and are not suitable to use with counters.

Please let use know in details, which versions are possible for you and upload a zip file from your basic diagram, not any picture.

Regards, Scorp

Hello,

thank you for the quick suggestions and help.

I'm sorry but I do not understand how to do this: "VM mapping of the actual counter value, which then can be changed directly over Modbus as 32 bit unsigned integer.". Could you please elaborate it a little more?

I would prefer this VM mapping approach and if not possible, then anything, where from modbus single modbus protocol transaction could set the speed i.e. writing multiple (programmatic) coils at once

The lsc diagram of draft version is now attached

Thank you very much! This seems to work.

I also found out how to add the logic to automatically use speed input source (local or remote) which has last changed by using Pulse relay and Analog differential filter