35 CPU MODULE BUILT-IN ANALOG FUNCTION
35.6 Function (PID Control Via Parameter)
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■Output value during auto-tuning
The following figures show output values (MVs) during auto tuning in standard PID control and heating-cooling PID control
using timing charts.
• Heating control (backward operation) of standard PID control
• Cooling control (forward operation) of standard PID control
• Heating-cooling PID control (ambient temperature setting function disabled)
OFF
ON
Measured value (PV)
1st cycle 2nd cycle
Adjustment sensitivity
(±0.1)
Target value (SV)
Time
Control output
OFF
ON
Measured value (PV)
1st cycle 2nd cycle
Adjustment sensitivity
(±0.1)
Target value (SV)
Time
Control output
OFF
ON
ON
OFF
Measured value (PV)
1st cycle 2nd cycle
Adjustment sensitivity
(±0.1)
Target value (SV)
Time
Control output
(heating control)
Control output
(cooling control)