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Posted

So I am completely new to PLCs and HMI, but I am engineer, so I think I should be able to figure this out.  So either I have completely missed something or the snap in I/O I bought is not good.

I am using 570 with V200-18-E3XB.  All I want to do it put a analog voltage out to V0 and read it on my volt meter.  

I would post the 3 lines of codeI have, but don't know how.  So I have AO 0 as 0-10V with tag MI0 on the snap in setup.  I then linearize a 0-10000 scale to 0-4095 bits and label this as MI0.  On the HMI i have output bit and voltage scaled and displayed correctly, but then there is nothing actually at AO0 and AO com.  Shouldn't I have voltage here.  hopefully I missed something and this snap in is not broken.

 

Thanks

Tyler

Posted

Uniguru,

first off, I didn't have any power to the snap I/o, so that is problem #1.  I haven't switched any jumpers, are these the ones located on the back of the V570?

 

Many thanks for the first simple fix of not having any power to it.  I bought this used, or not in a box, so no manual and this is my first time using any PLC.

 

Thanks

 

Tyler

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