how can i configure scxi1313 in RSE mode?

[suresh india]

hai all,

i have connected scxi1125 with scxi1313, i want to accuring data from SCB68 analog o/p port as feed back to scxi1313,but the problem is SCB68 Analog o/p is in RSE mode but scxi1313 is accepting Differential mode i/p, so data acquition is not proper, please suggest the optimum solution.

with regards,

suresh

Applications Engineer

ATS-Blr.

[devchander]

Hi Suresh,

How are you?

The problem you mention should not arise because Differential mode can acquire both floating as well as ground referenced signals.

And an analog output signal that is generated by a DAQ card is ground referenced (AO ground of DAQ).

Which is the DAQ card you are using is it PCI or is it a PXI sitting is a combo chassis along with the mentioned SCXI 1125 module?

Regards

Dev

[suresh india]

i am fine, how r u? my DAQ card is PCI6229 more over i am connecting in cascading mode,then what could be the problem, please give guidance

regards,

suresh

[devchander]

Hi Suresh,

Kindly clarify two things.

• In your first post, you said "i want to accuring data from SCB68 analog o/p port as feed back to scxi1313",

 So, are you Multiplexing the SCXI 1125 to the same PCI 6229?

• If it is so, how is SCB 68 connected to the PCI 6229 DAQ card?

Regards

Dev

[devchander]

Hi Suresh,

Kindly clarify two things.

• In your first post, you said "i want to accuring data from SCB68 analog o/p port as feed back to scxi1313",

       So, are you Multiplexing the SCXI 1125 to the same PCI 6229?

• If it is so, how is SCB 68 connected to the PCI 6229 DAQ card?

Regards

Dev

[devchander]

Hi Suresh,

Kindly clarify two things.

• In your first post, you said "i want to accuring data from SCB68 analog o/p port as feed back to scxi1313",

         So, are you Multiplexing the SCXI 1125 to the same PCI 6229?

• If it is so, how is SCB 68 connected to the PCI 6229 DAQ card?

Regards

Dev

[devchander]

Hi Suresh,

Kindly clarify two things.

• In your first post, you said "i want to accuring data from SCB68 analog o/p port as feed back to scxi1313",

         So, are you Multiplexing the SCXI 1125 to the same PCI 6229 that is generating Analog output?

• If it is so, how is SCB 68 connected to the PCI 6229 DAQ card?

Regards

Dev

[suresh india]

hai dev,

 As i mentioned i am going to take feedback in cascading mode, as PCI6229 have 2 connector terminals which one can be allocated to SCXI and another to SCB.

[allen_h]

Hi Suresh,

I suggest cabling Connector 0 of the 6229 to the SCXI and cabling Connector 1 of the 6229 to the SCB-68.  You can then connect AO GND and your AO channel to the differential + and - inputs on your SCXI-1313.  Because, the SCXI-1313 is taking differential measurements, it will simply take out the common noise from the AO GND line and the AO channel line.

Allen
National Instruments