CJ2H PID

[GlennP 0]

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

[GlennP 0]

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..

[lostcontrol 23]

Horses for courses, every system has its quirks & issues. The longer you work with something, the more familiar you become.