Use RS232 and Yogogawa WT230 to get Wh

[st168]

I use Labview to get voltage, current, power and wh from WT230 by using RS232. I can get the data of voltage, current and power, but it can not work in "wh".

I download the driver from

http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=1805

I select Plug and Play (project-style) and run the sample vi from the above link.

I can get the V, A and W from the sample vi but I cannot get the wh. It's no error message and return a error reading, for example 0.999xe-6.

I have used "Configure Measurement Normal.vi" and set the "Measure Item" to Wh. Also send "START" comment to WT230, for example "INTEGrate:START".

Can anyone give me a suggestion? Thank you.

[jjp377]

Did you try running the Time Integration Example in the driver? 

In that example you should just have to change the constant from 0 to 9 on the block diagram

[st168]

Hi jjp377,

I have tried the example vi. what's meaning for 0 to 9? if I want to get wh, which constant to set in Integ Mode and Integ type?

[jjp377]

Sorry I had modified the example.  I don't have the manual, I think the defaults should work.