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From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
09-01-2005 09:13 AM
09-02-2005 11:28 AM
09-02-2005 12:12 PM
Alas I have checked that. Within MAX the channels are each mapped to the SCXI module and connection point of the 1300 connection block. When read individually they indicate the proper values but when operated together as a task they all read similar to channel 1. There is variation between each single channel in the millivolt range.
I tried using labview 7.1 and the DAQ asistant to create a simple VI in which I selected a couple of the channels one at a time assiging each to its terminal in the 1300 block. When I ran the vi all the values followed the 1 channel just as in MAX. I didn't expect anything different but since I was letting the software create the tasks outside of MAX I figured it was worth a shot.
09-06-2005 05:49 PM
09-07-2005 06:58 AM
09-07-2005 02:40 PM
Jaime,
Have you recently gotten a longer cable or changed out your SCXI-1349? I have recently seen an issue using a DAQ cable of 5 or 10 m, or a newer revision of the 1349 along with a SCXI-1102 and 1104. It seems like you are encountering this same behavior. The fix is, as you discovered, to move the controlling card to be the 1104 rather than the 1102. These issues seem to stem from a specific hardware setup that you were able to replicate. Hope this information helps!
Andy F.