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General Mach Discussion / Mach3 is not talking to Breakout board
« on: April 03, 2011, 09:17:17 PM »
Hi,
My name is Robert, I live in SE Texas. I built a large CNC for a home shop. I have Mach3 and a C11G break out board. When Mach3 is running the screen appears to be running correctly. Each arrow key makes the screen numbers increase / decrease as expected. The BOB however has no reaction. The power light is lit. The output light is on. The direction keys for both directions on the output pins are lit. Meaning all the output lights are on. When I turn the power on the motors jog.
Here is what I have done so far.
The charge pump jumper is disabled on the BOB and in Mach3.
The address for the port is correct.
The inputs (limits, e-stop etc) are all disconnected from the BOB and disabled in Mach3.
The enable jumper on the BOB is connected / jumped.
Arturo at CNC4PC replaced the board.
I bought a new PCI parallel port
I have tried 4 different 25 pin cables (pass through).
I would really like to get this running. Does anyone have a suggestion on how I can get the computer talking to the BOB?
Here are a few questions I have -
How do I test the parallel port to see if the pin assignment in Mach3 is actually happening on the pins of the parallel card.
If I am expecting to see a voltage on pin5 how do I know if it is CW or CCW. What is the expected voltage? I am sure this discussion has taken place many times. Point me into the direction of the answer.
I own a Fluke 8060A Digital multi-meter. It is expensive but is notorius for not reading quick signals. If the parallel port only outputs for 0.1 seconds I may not be able to read it. Do you know the duration of the expected voltage.
Thanks,
Robert
My name is Robert, I live in SE Texas. I built a large CNC for a home shop. I have Mach3 and a C11G break out board. When Mach3 is running the screen appears to be running correctly. Each arrow key makes the screen numbers increase / decrease as expected. The BOB however has no reaction. The power light is lit. The output light is on. The direction keys for both directions on the output pins are lit. Meaning all the output lights are on. When I turn the power on the motors jog.
Here is what I have done so far.
The charge pump jumper is disabled on the BOB and in Mach3.
The address for the port is correct.
The inputs (limits, e-stop etc) are all disconnected from the BOB and disabled in Mach3.
The enable jumper on the BOB is connected / jumped.
Arturo at CNC4PC replaced the board.
I bought a new PCI parallel port
I have tried 4 different 25 pin cables (pass through).
I would really like to get this running. Does anyone have a suggestion on how I can get the computer talking to the BOB?
Here are a few questions I have -
How do I test the parallel port to see if the pin assignment in Mach3 is actually happening on the pins of the parallel card.
If I am expecting to see a voltage on pin5 how do I know if it is CW or CCW. What is the expected voltage? I am sure this discussion has taken place many times. Point me into the direction of the answer.
I own a Fluke 8060A Digital multi-meter. It is expensive but is notorius for not reading quick signals. If the parallel port only outputs for 0.1 seconds I may not be able to read it. Do you know the duration of the expected voltage.
Thanks,
Robert