35 CPU MODULE BUILT-IN ANALOG FUNCTION
35.6 Function (PID Control Via Parameter)
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35
• Program example
Set use permission for the FX5-4AD-TC-ADP(CH1), which was set as the process value (SD6300) when the state was
changed from STOP to RUN, and configure settings for the FX5-4DA-ADP(CH1). After PID control starts, perform conversion
to the digital value (0 to 16000) to be output to the control target by using the output value (MV), and obtain the analog output
value (SD6662). Turn on the auto tuning completion flag when auto tuning is completed.
After writing the parameter settings and program to the CPU module, turn X1 (Auto tuning used/not used) on and turn X0 (PID
control execution command) on, and auto tuning + PID control can be executed.
Setting example 5
When "Control mode" is "Heating-cooling PID control mode", after auto tuning starts and ends completely, perform PID control
using the obtained control parameters.
■System configuration
0V
COM0
Y0
FX5-4AD-TC-ADP
Y1 Y2
24V X0 X1
FX5U-32MT/ES
L1+
L1-
X0: PID control execution command
X1: Auto tuning used/not used
Y0: Error output
Y1: Control output
Y2: Control output (cooling control)
Parameter settings
24VDC
Temperature tank
Electric
heater
Temperature sensor
(thermocouple)
Heater
Cooler
Cooling piping
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