Yokogawa DCS valve control issues
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This post was last edited by oatobnus on 2010-5-2 at 17:44. Hello everyone, I want to use a pressure transmitter to control a valve – when the pressure is below -18 KPA, I want the valve to be open at 25% capacity. How can this be achieved?
My personal opinion: 1. First, ensure that the range matches the signal. 2. Write a small piece of code. if (pressure
It should be possible to achieve this using a CALCU module; in the module, set the transmitter’s range and units, as well as the input and output connections, and then program it as described on the second floor – the original poster can give it a try themselves.
I did the same thing, but that valve is controlled by MLD. Is it because of this that I still can’t control it even after doing what you did?
MLD is output to CALCU as a minimum. I’m not sure if this is what you’re looking for.