CV or CVEU options? - PLCS.net

dginbuffalo · February 2nd, 2012, 10:33 AM

i'm looking for opinions on which output to send to the analog out module when using a PIDE. it appears CV is 0-100 so i would have to use a MUL to scale the CV to match the output module range. on the other hand, if i use CVEU, i could make it match the output module range. the problem is that i am going to have some manual settings that go to a on the HMI to set the valve at 0-100, i guess i would have to multiply that too then. Would it be easier to use the CV and make 1 final MUL that ranges it to the output module? Am i barking up the wrong tree?

danny.michael · February 2nd, 2012, 12:24 PM

Use CVEU. Your manual settings should go into the CVOper or CVProg inputs on the PIDE instruction. The inputs would be in percent and the instruction will scale the CVEU output for the module.

dginbuffalo · February 2nd, 2012, 02:54 PM

Yes- i think that would be the way to go. thank you much.

February 2nd, 2012, 10:33 AM	#1
dginbuffalo Member Join Date: Dec 2010 Location: Buffalo,NY Posts: 137	CV or CVEU options? i'm looking for opinions on which output to send to the analog out module when using a PIDE. it appears CV is 0-100 so i would have to use a MUL to scale the CV to match the output module range. on the other hand, if i use CVEU, i could make it match the output module range. the problem is that i am going to have some manual settings that go to a on the HMI to set the valve at 0-100, i guess i would have to multiply that too then. Would it be easier to use the CV and make 1 final MUL that ranges it to the output module? Am i barking up the wrong tree?

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February 2nd, 2012, 12:24 PM	#2
danny.michael Lifetime Supporting Member Join Date: Sep 2006 Location: Alabama Posts: 131	Use CVEU. Your manual settings should go into the CVOper or CVProg inputs on the PIDE instruction. The inputs would be in percent and the instruction will scale the CVEU output for the module.

February 2nd, 2012, 02:54 PM	#3
dginbuffalo Member Join Date: Dec 2010 Location: Buffalo,NY Posts: 137	Yes- i think that would be the way to go. thank you much.

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