Modbus Read UIRP

[phuocdong147@gmail.com]

Hello everyone in the LabVIEW community,
I am currently facing a serious issue with the Read UTRP (Read Actual Value) block in a LabVIEW project for controlling the M97xx electronic load.

The software was provided by the manufacturer, and almost all functions such as Set Voltage, Set Current, Input ON/OFF… work properly. However, only the Read Actual Value block fails to run and always throws a Timeout Error.

When I disable or remove this block, the entire system continues to work normally.

If anyone has experience with this issue, or can share possible causes and solutions, I would greatly appreciate your help.
Thank you very much!

[Kyle97330]

I tried to download the source you posted and WinRAR won't decode it.  Corrupt maybe?

Can you try again with a ZIP?

The code looks like it's calling NI's old MODBUS library, or possibly a modified version.  However, I have that library and I don't recognize the "UTRP"/"UIRP" node (you mention one in your text but the other in your post...).

[phuocdong147@gmail.com]

Good morning Sir,
I download the WinRAR file from this website (https://www.maynuo.eu/product/1193848/maynuo-m9712-dc-electronic-load-0-30a-0-150v-300w) with file name: M97-98 Series DC Electronic Load LabVIEW Driver. rar
Can you check it again. Thank you for your concern.