Analog Output errors using an scc-FT01 module

[Marion]

I am using MAX to test analog output from a PCI-6024E through an FT01 module. When I set the AO value to zero I get 0V across the CH+ and CH- pins of the FT01 as expected but When I try to output 5V, I can only measure .435V. There also appears to be 5 to 6 Volts across the CH- and AISENSE pins at all times.

[JustinBritten]

Greetings,

Which socket, J17 or J18, is the FT01 plugged into on the SC-2345? Please reference page 5 of the SCC-FT01 User Module to ensure that you have the module installed correctly. Also, you will need to have the SC-2345 configured as the DAQ accessory in MAX.

SCC-FT01 Feedthrough Module User Guide
http://digital.ni.com/manuals.nsf/webAdvsearch/B391C218BC44098C86256C750066C8A2?OpenDocument&vid=niwc&node=132100_US

If you have the FT01 plugged into J17 (for use as analog output channel 0) and you measure across CH+ and CH- you are measuring output channel 0. If you measure across CH- and AISENSE (which is AOGND and the opposite output channel, AO 1) then you are measuring output channel 1. If you have set the AO value to be 5V and see this acr
oss CH- and AISENSE than it may be that you are sending the 5V to AO channel 1 and not channel 0. What if you send out 2V ... does this appear on CH- and AISENSE?

If you have everything installed and configured correctly then you could have a problem with your hardware. Try running the Online E-Series Diagnostic Utility on your DAQ card. This test just takes a few minutes and will test all of the features of your board.

Online E Series Diagnostic Utility
http://www.ni.com/support/selftest/

Regards,
Justin Britten

Applications Engineer
National Instruments