Hi,
Can anyone explain the Limit control function of the PID[190]
The PID works fine with the limit control turned off.
My theory is that if I set the Limit control to 1 (C+6, bit 12) and set a value in C+8 then the PID will cointrol the output up to this value.
But, it doesn't seem to have any effect on the MV.
Thanks in advance
Glenn
Full Version: CJ2H PID
An update.
It seems that the PID will not accept a new Max Limit until the PID is switched off and then back on.
Seems a lot harder than AB..
It seems that the PID will not accept a new Max Limit until the PID is switched off and then back on.
Seems a lot harder than AB..
QUOTE (GlennP @ Nov 11 2009, 05:19 PM) 
An update.
It seems that the PID will not accept a new Max Limit until the PID is switched off and then back on.
It seems that the PID will not accept a new Max Limit until the PID is switched off and then back on.
All of the PID setup parameters are like this. The P, I & D terms can be set to be updated without a 're-start'.
QUOTE
Seems a lot harder than AB..
Horses for courses, every system has its quirks & issues. The longer you work with something, the more familiar you become.
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