Hi, there First of all, I would like to apologize if this question has already been answered in the forums, but I haven't been able to find any solution for this situation. I have a Lakeshore 321 temperature controller hooked up to serial port using RJ-11 cable and DE-9 serial interface connector configured as DTE. Since there is no NI certified driver in the NI website, I tried to write my own based on 332 driver. I was able to read data (current temperature) from LS321 for some time last week. But then everytime I tried to read data, it kept giving me error as shown in the attachment. Any help with this issue would be most appreciated!

You'd be better off using the Serial Configure VI. It will also enable the termination character and set it for you.

LabVIEW

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I know it's a stupid question but I couldn't follow what you guys were discussing.

I copied most the code but I cannot read the temperature correctly, it's always 0.

Appreciate your help.

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