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Technical support / Re: PID ramp temperature control
« on: June 11, 2003, 08:34:47 PM »
Are you able to control the amount of refrigeration and heating to be applied. ie. Are you able to control the power of the refrigeration and heating coils? PID loop can only work if these are variable. If your control is simply "ON/OFF" type, then the control will not be "PID". Instead, you just monitor the temperature say every second and decide when to shut off the power to the refrigeration/heating coil. You can monitor at different time for the target temperature in the ramp curve and if the temperature decrease or increase too fast then shut off the refrigeration/heating power.