Multifunction DAQ

cancel
Showing results for 
Search instead for 
Did you mean: 

Continuous analog output board 6115

Hello, I have a problem with analog output with PCI 6115 in continuous mode.

The example in LV attached below (Cont Gen Voltage Wfm-Int Clk-Non Regeneration.vi) doesn't work with PCI 6115 if i choose "Do not allow regeneration" in a property node, it generates error -50410 (attached error.png). While the cards PCI 6221, 6251 and 6351 works perfectly in this mode.

If I choose "Allow regeneration", then, as the writing occures not pereodically, I have overlaps in output signal, observable in osciloscope. Thus I can't use this regime.

Does anybody knows why PCI6221 supports continuous mode without buffer regeneration, but PCI6115 doesn't?

 

Win7 64bit+LV11 Sp1+NiDAQ 9.3.5

 

Download All
0 Kudos
Message 1 of 2
(2,724 Views)

The problem is solved.

As the onboard buffer in PCI 6115 is too... large, the program filled it with signal and, thus, when smbd changes the sygnal type board still produce old data in buffer (FIFO). To make work one need to adjust with Buffer property node the Output onboard buffer size...

In mode "Do not allow regeneration" one shuld care so that buffer is not empty.

 

Best regards,

Ivan.

0 Kudos
Message 2 of 2
(2,705 Views)