sample rate of analog input (verses vision series, etc)

[jason]

I've implemented some hydraulic press controls using an M91 and a linear potentiometer. It works well, but there is room for improvement.

On our next machine, I'm considering the vision series PLC but can't find a spec for m90 or vision that talks about sample rate of analog inputs.

Can anyone point me to these specs?

Thanks

[Simon]

Hello Jason,

Go to the Tech Library section of the Unitronics website

http://www.unitronic...chnical_Library

there are specification documents for each model, and usually in the section on analogue inputs there will be a conversion time.

The final sample rate is a function of the conversion time and PLC scan time. If the conversion time is longer than the PLC scan, then it will determine the sample rate. Otherwise the PLC scan time will determine the sample rate.