Connect to climate/temperature chamber in LabVIEW

[tca-adam]

Yes I have contacted the local agent for Weiss in Australia and LabVIEW drivers do not exist. They want you to buy their Simpati software to control the oven instead.

Seems like I have a coding challenge ahead of me!

[Jonas_Vind]

Did you get any luck on creating a LabVIEW driver/code to control the climate chamber?

[Albert.Geven]

If it is the same manual as above, it is doable via VISA serial IO.

If uou need help. Just ask what you really need instead of coding all.

[Jonas_Vind]

It is the same manual.

Firstly I'm a bit confused on what commands you can sent to it. I've tried connecting via NI MAX and did a visa test Panel in hopes of sending a command and checking the visa connection that way. But so far I have not been able to get a respone form the climate champer sending. I have tried sending both "{STX}z?E8{ETX}" as well as "$01I<CR>" but I keep getting timeout errors as there are no respons.

[Albert.Geven]

Maybe you can send an example vi with the string you asked and all the settings of the serial port?

It could be that the system requires a bit more coding, better initialization, or better hardware wiring.

I can look at all three but not without more information from your side.

[A._Dek...]

Hello,

It's just to share my experience (that's why I don't open a new topic), as I also had to control a Weiss Climatic Chamber (using an Ethernet connection in my case).

I installed the Simpati software (evaluation only - V4.80), and after I configured the communication with the climatic chamber, I now only use a TCP/IP communication with the Simpati server to control the climatic chamber (you can find the protocol definition in the documentation installed with Simpati).

I can not garantee it, but it seems that there is no license needed for this part. I just prepared a script to launch SimCreate.exe, SimC3k.exe (depends on your model I suppose), then SimServ.exe -P7777 -start when the computer starts (note: I added some tempo between each command line).

For the LaVIEW code, you can use this snippet for test

 

or just open a TCP/IP communication on localhost, port 7777.

Communication frame examples for climatic chamber #1 (\ notation) :

Set regulation ON : 14001\B61\B61\B6true\r\n

Set Treg=20.5°C : 11001\B61\B61\B620.5000\r\n

Set Hreg=50% : 11001\B61\B62\B650\r\n

Hope that it will be useful for others

Adeline.