Message Edited by AutoTEC on 07-09-2007 05:05 AM
The 6239 has inverse logic, where a ‘0’ puts the output port high(Vcc) and a ‘1’ puts the output port low (Gnd). Please double check both the high and low cases to make sure the card is operating properly.
Also, on the post you say ‘i am measuring at P0.1 and P1.GND’ à I assume this is meant to read ‘I am measuring at P1.0 and P1.Gnd’, in which case the measurements are correct. Going along with the first statement, check both the high and low voltage to make sure the voltage is changing for each one.
If problems still persist, I would like to ask
for a bit more clarification around how you are doing testing (through
Measurement and Automation Explorer test panels? LabVIEW ? ) There is always
the possibility a line or the card is bad – do all lines have the same
behavior? Has this card worked previously? Do you have another card that you
Message Edited by David L. on 07-10-2007 01:28 PM
The card requires an external supply, as it cannot pull 10-30v from the PCI bus. There is always the possibility a line or the card is bad and needs to be repaired – do all lines have the same behavior? Has this card worked previously? Do you have another card that you can try? If you believe the card is broken, I would suggest contacting our sales team at 1-800-IEEE-488 (1-800-433-3488).