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Author Topic: Input pin help  (Read 4924 times)

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Re: Input pin help
« Reply #10 on: April 12, 2013, 03:25:14 PM »
Yeah I would of put it back to standard.

I did similar with the estop pin 15 and set that to probe. Operating the estop button changed the digitise status led as you would expect.

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Re: Input pin help
« Reply #11 on: April 12, 2013, 03:27:21 PM »
Ok definitely sounds like a port/cable/breakout issue, you could confim by setting and connecting the E-Stop to pin 13 and see if the E-Stop LED works as it should, I suspect it will not.
Hood
Re: Input pin help
« Reply #12 on: April 12, 2013, 03:35:32 PM »
No it does not work, again I tried it both as low and high.

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Re: Input pin help
« Reply #13 on: April 12, 2013, 03:39:17 PM »
Ok so that suggests its either a port/cable or BOB Issue, Is there any way you can connect the probe direct to the port? That would bypass the BOB and rule it in or out.
Hood
Re: Input pin help
« Reply #14 on: April 12, 2013, 03:55:31 PM »
I actually connect direct to the wire coming from the parallel port for the probe, nothing goes through the bob.

I use the ground on the bob which is common to the grounds on the port

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Re: Input pin help
« Reply #15 on: April 12, 2013, 03:58:20 PM »
Sounds like it may be your port that is the problem then, dont suppose you have another computer you could test with? Or possibly  a PCI card you can put in and try?

You could try one of the utilities that are available like PortMon to see if it sees the port working correctly.
Hood
Re: Input pin help
« Reply #16 on: April 12, 2013, 04:09:28 PM »
Just the one computer and don't have a spare card. I'll have a look tomorrow at the utility you mentioned and see what that shows.

If I were to change out the parallel port for a new one (assuming thats the fault) would it be literally just plugging the cable back in and everything works as it should - ie I would not have to start retuning motors and spindles and assigning pins etc?
Re: Input pin help
« Reply #17 on: April 12, 2013, 04:09:45 PM »
Thank you for the help by the way.

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Re: Input pin help
« Reply #18 on: April 12, 2013, 04:17:45 PM »
The only thing you would have to do is get the address of the new port and enter it into the Port1 box in Mach.
Hood

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Re: Input pin help
« Reply #19 on: April 12, 2013, 04:21:55 PM »
Just thinking, you said you have the Gnd connected to the BOB, have you confirmed it does actually share the same Gnd as the port? It may be you are using the Gnd at the isolated side of the BOB, assuming of course the BOB is isolated.
Hood