Soft PID system?

[DavidLee]

In the market, there are many types of PID meter. In CVI tools , there is also a PID package , if it means that I could use a soft PID system to replace a physical PID meter ? if it is , when needing to construct a temperature PID control system , what hardware is required ?
your advise is greatly appreciated .

David

[JuanCarlos]

David,

CVI is definatelly the right tool to develop a software PDI controler. The hardware that you need will depend on the type of signals that you are dealing with. It will most likely have some input and output channels; for example you can have a DAQ board that reads teperatures and then uses a counter to generate a PWM that controls the heater output.

Please give us as much specifics as you have; many people have allready implemented systems like that.

I hope this helps

Regards,

Juan Carlos
N.I.

[DavidLee]

I want to control an oven's temperature with PID arithmetic ,the temperature range is from 180 to 220 degree centigrade . How to setup such a PID control system ?

David