Voltage & current detect. Need some help.

NMhZ

hi everyone,

just wanna ask. how can i detect the voltage and current using SX chips?
i don't really sure whether i am doing it correct or not. See attachment.

VonSzarvas

Check the SX/B help document. Under "Commands" find "ANALOGIN".

The docs have a circuit diagram, code and a thorough description of whats going on. I think it may tell you all you need to know about measuring voltage.

As for current... never needed that so no sure off top the head - but maybe thats just a simple formula? V = IR ? Assuming you have a constant resistance.

Good luck.

Bean

What do you mean by "detect" ? Do you just want to see if voltage is there ? Or do you actually want to measure the voltage ?

Bean.

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NMhZ

Bean (Hitt Consulting) said...
What do you mean by "detect" ? Do you just want to see if voltage is there ? Or do you actually want to measure the voltage ?

Bean.

yes, i want to measure voltage and current. when the voltage/current go to certain level, i want the controller to react. but i am not really sure whether the connection i did is correct. thx for helping.