PCI - 6221 - problem with digital inputs... / Probleme mit digitalen Eingängen

[klaus11]

Hi!

I have a DAQMx PCI - 6221 card, and the problem, that all works, but the digital inputs doesn't work!
Before I used a PCI-MIO-16E, together with the SCB-68.

There is not another wire necessary for digital inputs, isn't it?

With another PIC-6221 card I have the problem that the analog input voltage is always 10 V presenting, without any connection.

My system:
Measurement & Automation Explorer 3.1.1.3004 with DAQMx 7.4.0f0!

Please help!
Thanks,

Klaus

[ThSa]

Hi!

Have y tried the attached VI for DI?

Y can use instead of SCB68 the CB-68LPR connector!

With another PIC-6221 card I have the problem that the analog input voltage is always 10 V presenting, without any connection.
First, go to the Properties of your daq board (in MAX) and select AI, and set Polarity Range to -10 to 10V, and set mode to differential. Click on Apply button, and then OK. If you do have an accessory, go to the Accessory tab, select it and click on Apply & OK, again.

Second, go to Test Panel,and in Channel under Analog Input, type "_aignd" (without the quotes), and that should read 0V. Then, type "_ref5V" (without the quotes), and that should read 5V.

Third, if you have nothing connected (I mean a signal) to your board, whatever reading you get in the AI channels is OK because it is set to differential. Furthermore, in order to test them, you should use a battery (floating signal), and a function generator (grounded signal). Read them in MAX, and see if the readings are correct.

Regards,
ThSa

Message Edited by ThSa on 08-12-2005 06:51 AM