NI USB-9481 Switching Delay

One of the channels on my USB-9481 relay has begun operating with a delay between when the switch command is sent from LabView (or Measurement & Automation Explorer) and when the actual switching occurs. The other 3 channels appear to be operating normally. What might cause such a delay and how can the problem be resolved?

Hello JamesF,
Can you quantify the delay? I suspect its a faulty electromechanical switch, I recommend contacting National Instruments to service your device.
Regards,
Glenn
Regards,
Glenn

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Help needed to use USB 9481 relay device

I am new to LabVIEW so any help would be appreciated.
I am attempting to start and stop an instrument with the USB-9481 relay device. On my instrument, connecting pins 1 and 2 will start the machine, and connecting pins 4 and 5 will stop the machine. How do I program LabVIEW to connect pins 1 and 2, wait a determined time, disconnect the connection, and then connect pins 4 and 5? No power needs to be supplied since the 12V is already being supplied by pins 2 and 4.
Thanks so much.

Hi Josh, No problem. I took a look in the NI 9481 Operating Instructions and found this information to be quite useful:
As far as the DAQ Assistant goes, you can only have 1 DAQ Assistant per device, so you will need to add channels to the DAQ Assistant by pressing the '+' button near the top left (just below the Play button). This device is pretty simple, and I'm sure you'll be using it in no time.
Message Edited by Otis [DE] on 05-03-2006 03:20 PM
Otis
Training and Certification
Product Support Engineer
National Instruments
Attachments:
9481-Instructions.JPG ‏83 KB

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NI-FBUS Configurator 4.1.0.49152 + USB-8486: High delay between consecutive write actions

Hello,
imagine a case where you have a (transducer) block with at least around 12 parameters all of which have both read and write access:
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Regards
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Solved!
Go to Solution.

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Message was edited by: jay e

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Message was edited by: jay e

USB KVM Switch

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This topic first appeared in the Spiceworks Community

You can't open the application "Belkin USB Peripheral Switch.app" because PowerPC applications are no longer supported.

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NI USB-9481 Switching Delay

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