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How hold and graph data and values comes from DAQ card via Modbus.

Hi All, 


Could you please help me. 

I have a DAQ card with 8 single ended channels. This card has RS485 port and I have used a RS485/USB convertor to conect this card to my PC.

Now I can see the measured values of each chanel via holding registers based on below attached VI.

How can I hold and shows this data on several geraph? 


It would really appriciated if help me and complete attached VI. I am biginner in Labview.Smiley Sad 

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Hi Lier,


use shift registers to hold an array of values for each signal. Then plot those arrays in your graphs.

Or use PtByPt-DataQueue for each signal…

Best regards,

using LV2020 on Win8.1+cRIO
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