This has probably been asked before but I couldnt find anything except for a few threads where it got mentioned (allen bradley etc)
Is this function still working in the latest mach version?

Im Trying to set one of the TCP Modbus Registers with SetMasterOutput(3,1) via a simple button containing only this line but it doesnt seem to do much.
I already have a lot of brains so I was looking for a more direct or easier to edit way. (The Brain editor is a bit unpractical)

Thanks in advance!