Joint limit switch errors

Thank you for your reply. I was puzzled by too much information. I have a back up computer and tried it and it also showed the same problem.I thought maybe there might be a broken wire but completely rewired the limit switches and thought that was all working. But the only common thing would seem to be the BOB which you mention. i will try to get a replacement for that.

Thanks again.

norbertfarquharsh wrote: Thank you for your reply. I was puzzled by too much information. I have a back up computer and tried it and it also showed the same problem.I thought maybe there might be a broken wire but completely rewired the limit switches and thought that was all working. But the only common thing would seem to be the BOB which you mention. i will try to get a replacement for that.

Thanks again.

What bob are you using as if it is one of the cheap China one with the blue relay on it. The need 12-24V for the input pins to work

Thank you for your comments.

The BOB I am using is from Xylotex and has been in use for maybe 4 years, but I do not remember exactly.. It has no relays on it. I have already ordered a new one from Xylotex and will see what happens then. Just cannot figure the logic of the system to see how the errors occur.

You should check if the Bob is getting supply voltage as some will not work without it.
Some bobs have jumpers for setting them as pullup or pulldown.

Thanks for your suggestion. Mine is a Xylotex and it requires 5 volts and I checked that and it is okay. There are no jumpers.

I am replying to this mail because I am hoping I can get help me on where my logic is failing.
I have changed nothing in hal or ini since the first mail and the Axis interface errors have
not changed so the enclosures with that mail are still current.

The axis interface is still failing and indicating that there is no limit switch closure on all axes.
The Halmeter is still showing that the condition is True on all three axes which I thought meant that
there was a limit switch contact closure.
And Halmeter shows no change in condition when the the limit switch(es) are manually operated.

I downloaded and used the ptest widget mentioned in the forum. That shows contact closure (red
indicators) on pins 11, 12, and 13 which turn to green when the switches are activated.

My conclusions are that ptest shows the limit switches normally closed and then open when
operated. Halmeter shows the closed condition but then not the open condition. And Axis shows
the limit switches always open.

Obviously I am missing something.