Why is the Digital Output Line 1 on my PCI-7390 Not Working?

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Primary Software: Driver Software>>NI-Motion/FlexMotion
Primary Software Version: 7.2
Primary Software Fixed Version: 7.2
Secondary Software: N/A
Hardware: Motion Control>>Controllers>>PCI-7390

Problem:
I have a PCI-7390 motion controller and I am trying to use the digital output lines. When using line 0 on the ports related to axis 1, 2, 3 and 4, I am able to change the line state. But when I try to change the line state with line number 1, I do not get the results I am expecting. How can I get the digital output line 1 to work on my 7390?

Solution:
First, make sure that you are using the most recent version of the NI-Motion driver, and if you do not have the most recent version then you should upgrade to the most recent if possible.

The Inhibit Output line 1 for each axis of the PCI-7390s are, by default, mapped to the Digital Output line 1 on each axis. You can see this in the Measurement and Automation Explorer by doing the following:

Select Axis 1 (or any axis)
Select the "IO Mapping" tab at the bottom of the page. (See the screenshot Motion Digital Output line not changing.PNG attached below for reference.)
You will then see that the "Inhibit Output" under the Output Mapping is mapped to "Axis 1 Output 1” and the same can be seen for each of the other Axes.

To change this, simply double click on Axis 1 Output 1 and change it to "None". This will now allow you to use the Digital Output line 1 for that specific Axis as a normal Digital Output line. Once you do this, you should now see the same behavior for line 1 as you see for line 0 after initializing your motion controller.

Related Links:
Products & Services: Motion Control
Drivers & Updates: Motion Control

Attachments:

Report Date: 02/08/2007
Last Updated: 02/11/2007
Document ID: 467IMDHB

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