adccommunitymod (AutomationDirect) asked a question.
Created Date: November 07,2015
Created By: ivan_drago
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Hi, I'm using a click PLC model C0-02DD2-D with the thermocouple expansion module C0-04THM. Is there a function available inside the math function to compare two values and return the max or min value? For example: DF2 = 10 Min(5,DF2) returns 5 And a similar function to return Max? I have a math function which returns a value between 0-100 used to open a modulating valve a certain percent open. But I also have a user setable minimum percent open and maximum percent open. I can see how to do this with conditional rungs, but it starts to add a lot of rungs of code. It would be easier for me to keep it all straight contained in one math function. Thanks.
Created Date: November 09,2015
Created by: winterrossi
I don't think the Click has anything like that. It's math function is just like having a scientific calculator.
Created Date: November 09,2015
Created by: winterrossi
Hint: put that code in a separate subroutine and just call it when the value changes.
Created Date: November 07,2015
Created by: ivan_drago
Hi,
I'm using a click PLC model C0-02DD2-D with the thermocouple expansion module C0-04THM.
Is there a function available inside the math function to compare two values and return the max or min value?
For example:
DF2 = 10
Min(5,DF2) returns 5
And a similar function to return Max?
I have a math function which returns a value between 0-100 used to open a modulating valve a certain percent open. But I also have a user setable minimum percent open and maximum percent open.
I can see how to do this with conditional rungs, but it starts to add a lot of rungs of code. It would be easier for me to keep it all straight contained in one math function.
Thanks.