Synchonisation of PXI 4462 with PXIe 6361 / 6363

[FightingWombat]

Hello everyone,

I have a problem where I have to take sychronized measurements of 49 Sensor signals (48 Acceleration Sensors and one Force Sensor). I used the example in the Labview Help and altered it a bit to sychronize my PXIe 6361 with the PXIe 6363. So that gives me 48 Channels in single ended mode. To get the needed additional channel I wanted to use one card which we already had, the PXI 4462.

I hoped that it would be possible to just add it with the trigger in slave mode but I get the error message Error -200077 at the trigger property node of the PXI 4462:

Possible reason(s):

Requested value is not a supported value for this property. The property value may be invalid because it conflicts with another property.

Property: SyncType
Requested Value: Slave
You Can Select: None

Task Name: Kraftsensor

When I select None I get the error message:

Error -89136 occurred at DAQmx Start Task.vi:1. 

Specified route cannot be satisfied, because the hardware does not support it.

Property: RefClk.Src
Source Device: PXI14461
Source Terminal: OnboardClock

The use of the onboard clock of the chassi(PXIe 1075) also didnt really help - same error. I'm not quite sure anymore whether the PXI 4462 card is able to accomplish this because in the Help Examples it is not listed as usable for this sychronisation example. The sychronization examples I find online ( https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000kHJ7SAM ) use a slightly different approach but the problem with shared clock would nevertheless be there.

Unfortunately I'm a beginner in Labview, I'm also sure there is a more elegant way of saving the data to a file than using the express VI, but so far it did the trick.

Hopefully one of you has an alternative idea (I don't have Timimg and Sychrinisation Card)  or just confirm that it's not possible with the hardware present.

Thanks in advance!

[AlynCuY]

Hi there!

Have you tried the way described in the knowledge article you mentioned? I will attach some examples where the same errors came up, which might help you understand what these error messages mean. As you will see, it's about the hardware not supporting specific actions, just as you encountered  with your PXI 4462.

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000kK2YSAU

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019LYQSA2

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019Nm5SAE

I hope this helps and good luck with your project!