Hi all,
I'm struggling to make a VI to work with Omega controller. I have CN745 connecting with a computer via RS485 and using RS455-to-USB converter. I created a VI as in the attached picture. My problem is that I don't receive anything in the buffer. Any ideas what might go wrong in my VI? An interesting thing is that with the same physical setup (i.e. wiring, converter), I get to work using Visual Basic 6. I tried to look for example VI, but there is no direct example. So I adapted it from the ones that are close to my controller protocol (different Omega controllers may use different communication protocols)
Eventually, I will have this VI in a loop to monitor temperature for every few minutes. I also will add a write temperature setpoint VI in there.