APPX
Appendix 6 Process Control Program Examples
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Appendix 6 Process Control Program Examples
This section provides examples of process control programs using process control instructions.
With the following program, the control mode enters the manual mode when the power is turned on.
Turning on X10 enters the auto mode (AUTO) and performs PID control.
(0) Set the control mode to AUTO.
Set the alarm detection (ALM) to 0.
(7) Jump to the P0 label when SM402 is on.
(11) Set the last value hold processing.
(13) Reset the last value hold processing.
(15) Set the output value hold processing.
(17) Reset the output value hold processing.
(19) Adjust to the time set for the execution cycle.
(27) Jump to the P1 label when M0 is on.
Turning M0 on clears T0 to 0.
(35) The end of the sequence program in which SM402 is off is indicated.
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