Usual disclaimer...I'm electronically challenged.

Using Mach4 and Pokeys57cnc on a G0704 converted mill, manual tool change.  I have a probe that is working for probing material and now want to add a tool height touch off.

Attached are photos of the electronics and PoKeys and Mach4 settings.  You can see the ribbon connections and the red line.  I think those are oriented correctly.  The blue wires are attached to pins 17 and 6 on the db25 connector and I get a full 5 volts through.  Can anyone tell me why I cannot get the Pokeys or Mach to read a change when contact is made with the wire ends?

Any help is greatly appreciated.

RT

not really sure how you are setup don't see the pokeys57cnc

But i have the probe wired to input pin 19 on the pokeys board, also some of the older boards needed a resistor 1k or so.
its been a while so don't remember if it was a pullup or pulldown resistor..

i didn't understand from yours question ,do you already have one prob work well now you want add one more?
as i know pokeys support only one probe
you can try connect both prob same input ,in any case they not working same time
**why you use printer connector?

not really sure how you are setup don't see the pokeys57cnc

But i have the probe wired to input pin 19 on the pokeys board, also some of the older boards needed a resistor 1k or so.
its been a while so don't remember if it was a pullup or pulldown resistor..

I have rev 1.5 so in theory its not supposed to need one.  I too have pin 19 going to probe for my edge/surface probe and that works fine.

i didn't understand from yours question ,do you already have one prob work well now you want add one more?
as i know pokeys support only one probe
you can try connect both prob same input ,in any case they not working same time
**why you use printer connector?

Certainly makes sense to use the same probe connection for both probes.  Problem is that one is NO and the other is NC.  I guess I could add a button script that changes the probe signal to high or low as needed and a 2 position switch to select which probe is active.  More things to forget and go wrong.

I thought I should be able to use any free input to use for another probe signal g32.1, g32.2, g32.3....but I have been wrong before.

RT

No my freind electric rules ,if you want use 2 probe same input , parallel ,only NO can use ,if you want tske chance can use both in line and then both shuld be NC

you can use a relay for invert the signal work very well for me

I don't think relay good ide,its probe and relay response time not presics

i use it with a 3d probe result are very good after calibration

If you look at 24dc  relay response time you can see first its "up too" that mean not constant ,and its 15ms or 6 ms i think its not long time but its can make problem with tool length measure