Help using SXCI-1102 with 1122

[ToddT]

I have tried the advice from previous postings, but none have worked for me. I am using a SCXI-1000 chassis with a 1102 and 1122 module. I had the 1102 linked to my DAQ device and the 1122 to none. With this my temp readings were good (on the 1102) but pressure readings would drift negatively. So I cabled the 1122 to the device and the readings are stable but incorrect and my temp readings are wrong. Any ideas?

[Bill B]

Hello,

Thank you for contacting National Instruments.

You should have your DAQ board cabled to your SCXI-1102 as mentioned on page 10 of the SCXI Quick Start Guide.

The SCXI-1122 is a jumper programmed module. This means that you must set jumpers inside the module and then ensure that your software setting match the jumper settings (ie. gain and filter settings). The SCXI-1102 has software programmable gain settings and a fixed 2Hz filter.

I highly recommend that you read the SCXI-1122 User Manual. Then remove your SCXI-1122 from your chassis and open it up to make sure the internal
jumpers are set correctly. Then replace the module and make sure that the settings you have configured in software match your jumper settings.

Regards,
Bill B
Applications Engineer
National Instruments