How can i monitor temperature in climate chamber TCC 4025 using labview and myRIO?

[hafizyota]

I am working with my Bachelor Thesis and i am running out of time. Anyone can help me on this problem?

[mikeporter]

The chamber has a controller on it right? You could connect to it to find out what the internal temp is.

Mike...

[hafizyota]

But I want to develop a remote control from pc for this CC

[mikeporter]

The best way to do that is with a dedicated controller (Thermotron makes many good ones) and use the PC to control the set point. The problem with building your own control is reliability. There is no way a PC will be as reliable as a dedicated COTS (commercial off the shelf) controller. And let's not forget the cost required to reinvent this particular wheel.

Mike...

[Sam_Sharp]

If the chamber has a communications port (e.g. RS-232 / Ethernet / USB), then it's possible that you can communicate with it remotely - you'd need to look it up in the datasheet/manual for the chamber (or contact the manufacturer). I've communicated with chambers over RS-232 that use MODBUS in the past and you can set the temperature, as well as read out temperature/humidity information.

Of course, if you just want to monitor the temperature, why not wire up a temperature sensor and stick it inside the chamber? There are many different types (e.g. thermocouple, RTD etc.) with different types of interfaces (e.g. analogue, SPI etc.) - most of which you should be able to hook up to a myRIO.

[hafizyota]

can i know more about your past project? this chamber has RS-232. 

[Sam_Sharp]

There wasn't really that much to it - it was a PC application which communicated with a chamber to run the chamber on temperature profiles whilst reading data from a device under test.

The chamber used MODBUS so I read the documentation for it and then used a LabVIEW MODBUS library (from NI - available in VI Package Manager) to read/write the correct MODBUS registers.

[hafizyota]

is there step by step that i can follow? 

[mikeporter]

The vendor can provide documentation for how to use the serial interface - perhaps even examples. That would be the place to start. How pressed for time are you?

Mike...

[hafizyota]

I have about 2 weeks left 😞