PID Loop

In industry to control the process you need to use PID Loop
There are mainly two typess of signal we use in industry as an analog signla
one is 4-20mAmp
sec is 0-10 volt
these are the basic of PID Loop
Now to program it you have to use one more thin and that is we called PID settings
Mostly we use
P: Propotional to the gain we need from 0~10 percent
I: Integration is mostly 90~100
D: Differentional is mostly 0
These value may be change when your requirment are changes so itz may be a hit and try rule

Comments

Anonymous said…
can these parameters are instrument specific??
Anonymous said…
yes up to some extent these are instrument specific like
Pressure Transmitter
Temperature controller
Valve and all like that
Anonymous said…
To use or do operation on PID Loop you should use to move data from one register to internal memory area for that use MOVE instruction...............

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