I have a Beckhoff BC 9000 with an analog input card and a digital output card.
I think my problem may be generic enough that it perhaps has nothing to do with specific hardware.
I want an output that is controlled by a 4-20 mA input ( Beckhoff KL3012 ) to turn on above a certain point and off below that point ... the problem is that the input card thinks the input is varying and is causing the output to chatter when it is near the setpoint.
How can I get rid of the chatter?.... I don't really care to try to get rid of the variance on the input ( if it is indeed varying ) but stop the output from chattering. Can the resolution be lessened on the card or perhaps some other programming trick? Averaging or something?
thanks
I think my problem may be generic enough that it perhaps has nothing to do with specific hardware.
I want an output that is controlled by a 4-20 mA input ( Beckhoff KL3012 ) to turn on above a certain point and off below that point ... the problem is that the input card thinks the input is varying and is causing the output to chatter when it is near the setpoint.
How can I get rid of the chatter?.... I don't really care to try to get rid of the variance on the input ( if it is indeed varying ) but stop the output from chattering. Can the resolution be lessened on the card or perhaps some other programming trick? Averaging or something?
thanks