Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: Daner on October 11, 2019, 07:21:18 PM

Title: Parallel Port Output Voltage
Post by: Daner on October 11, 2019, 07:21:18 PM

My Mach3 is not communicating with the cnc router.
Testing the parallel port, I get 3.4 volts on most of the pins on the 13 side without pressing any keys page up, down left ,right etc
On the 12 pin side I get no voltage at all ,even when I press the up down side to side X,Y,Z
This kind of tells me a setting is not right?
Should I be getting volts through the Parallel ports pins for ie, up- down - side to side ?
Thanks in advance for any help.

Title: Re: Parallel Port Output Voltage
Post by: Daner on October 11, 2019, 08:48:17 PM

On my control panel for Mach 3
It shows the XYZ sending to the monitor.
I just need to find out why it’s not sending to the parallel port.
Please help

Title: Re: Parallel Port Output Voltage
Post by: Tweakie.CNC on October 12, 2019, 01:49:59 AM

In Device Manager check the Address of your LPT Parallel Port and then check that is the address you have entered for Port#1 of Mach3 and that it is enabled.

Title: Re: Parallel Port Output Voltage
Post by: Daner on October 12, 2019, 11:55:08 AM

Quote from: Tweakie.CNC on October 12, 2019, 01:49:59 AM

In Device Manager check the Address of your LPT Parallel Port and then check that is the address you have entered for Port#1 of Mach3 and that it is enabled.

Looks like they match and enabled

Thanks

Title: Re: Parallel Port Output Voltage
Post by: Tweakie.CNC on October 13, 2019, 01:33:59 AM

Perhaps try running a parallel port tester just to check that is working OK.
This or something similar; https://www.downtowndougbrown.com/2013/06/parallel-port-tester/

Title: Re: Parallel Port Output Voltage
Post by: Daner on October 13, 2019, 10:50:36 AM

Thanks
I reinstalled Mach
And turned on 2 ports
And it works

Title: Re: Parallel Port Output Voltage
Post by: Tweakie.CNC on October 14, 2019, 01:41:46 AM

Excellent  ;)