NI-3100 I/O LED

Darkman88

Hey Guys,

I've got a NI-3100 that seems to have a problem, the first 4 led of the I/O is permanetly ON, I've tryed to upgrade the firmware again to the last version (it was already the last version) but the situation is the same.

Anyone have got Ideas

Thanks a Lot

Kman88

yuri

is there something attached to one of the four I/O ports?

Darkman88

Not yet.....

yuri

What has happened to me once is that there was a short on I/O 1, which caused the first four I/O LEDs to light up, hence the question

Darkman88

yuri wrote: »

What has happened to me once is that there was a short on I/O 1, which caused the first four I/O LEDs to light up, hence the question

A short between I/O 1 and gnd coused the first four LED light on??? I think that i not undertand.

I think that if the I/O chip is broken all the first 4 IO or the second four IO suks because of the I/O Chip is conntected to 4 I/O and in the 3100 we have 2 I/O Chip

Joe Hebert

Darkman88 wrote: »

I've got a NI-3100 that seems to have a problem, the first 4 led of the I/O is permanetly ON,

If you have nothing connected the I/O LED will light if the input is set to ACTIVE HIGH instead of ACTIVE LOW.

Try sending this command from Control a Device and see if the input 1 LED turns off:

Device = 5001
Port = 17
System = whatever your system number is

Command to send:
SET INPUT 1 LOW

If the Input 1 LED turns off then rinse and repeat for inputs 2-4.

HTH

Darkman88

I've tryed but it doesent change nothing.
I think is an hardware problem

DHawthorne

They are TTL inputs, and easy to burn out. I suspect that is what happened.

Darkman88

DHawthorne wrote: »

They are TTL inputs, and easy to burn out. I suspect that is what happened.

:-( :-( :-( I suspect that is what happened to...