662
35 CPU MODULE BUILT-IN ANALOG FUNCTION
35.6 Function (PID Control Via Parameter)
■Program examples
• Device setting example
• Program examples
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. After PID control starts, 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 3
When "Control mode" is "Standard PID control mode", after auto tuning starts and ends completely, PID control using the
obtained control parameters is performed. After auto tuning is completed, perform conversion to the voltage value (0 to 5V) to
be output to the control target by using the output value (MV).
■System configuration
Item Device indirect
specification
Description
A/D conversion enable/disable setting (CH1) SM6301 FX5-4AD-TC-ADP(CH1) A/D conversion enable/disable setting (0: Enabled,
1: Disabled)
Auto tuning completion flag M2 Flag that turns on when auto tuning starts and ends completely
0V
COM0
Y0
24V X0 X1
FX5U-32MT/ES
L1+
L1-
V1+
COM1
X0: PID control execution command
X1: Auto tuning used/not used
Y0: Error indication
Parameter settings
FX5-4AD-TC-ADP (2 adapters)
24VDC
Temperature tank
Electric
heater
Temperature sensor
(thermocouple)
Heater
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