temperature control

[wujunwei]

Currently I have a 3 heating zone tube furnace, so I have 3 temperature controller, then the 3 channels controller information gathered together to DB-25 pin port for Data I/O to communicate with computer,

I am going to control it by LabVIEW 8.2, what kind of command should I use to read and write temperture.

Anybody has such experience or could give me some information?

I appreciate your help very much.

Attached is my programm, it is simple, and not good, still unfinished.

[michenglaoxu]

It really depends on your hardware and what kind of DAQ bus you use.

Still confuse about " write temperature?" Do you plan to do Temperature control? if so, what kind of controller and control algorithm do you use?

Question you raised is too general to answer. It would be better you provide more detail information.