Yokogawa WT3000 Power Analyzer vi - Read Numeric Normal vi how to read more than 255 items

[umberto82]

I have problem with this YKWT3000 Read Numeric Normal vi, in particular I have set the instrument to read

4 channels (Current) x 100 harmonics per channel = 400 items and I could see only 255 value even i set on this vi Number of Item = 400.

[GerdW]

Hi Umberto,

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@umberto82 wrote:

I have problem with this YKWT3000 Read Numeric Normal vi, in particular I have set the instrument to read 4 channels (Current) x 100 harmonics per channel = 400 items and I could see only 255 value even i set on this vi Number of Item = 400.

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Ok, there are some options:

• Ask those who created that VI to debug it. (Maybe the Yokogawa support can help you !?)
• Read the manual of the WT3000 if it even supports more than 255 items. Then start debugging that VI on your own!
• Think about the problem of not being able to edit/run/debug plain images of code with LabVIEW…

[K C]

Hi,

If you look in the communication manual you can see that the maximum for this command is 255.

But, like Gerd said, you have to read the manual.

Kees

[umberto82]

Thanks a lot for the answer (I have jest read about on manual).

My question was about if it could be some trick to read more than 255 items for acquisition cycle ..

For example if you store all harmonics on Yokogawa WT3000 memory card you could save more than 255 items for acquisition cycle ..

Could it be a limitation linked to WT3000 communication interface (GPIB) ?

[K C]

Don't now what exactly the reason is for the 255 limit other than a byte count.

Storing it on a memory card and reading that could be possible I think.

But is it not possible to read the additional items directly ?

Kees