35 CPU MODULE BUILT-IN ANALOG FUNCTION
35.6 Function (PID Control Via Parameter)
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35
Error display function
If an error occurs while PID control or auto-tuning is being executed, the error status and error code are stored into the
devices. For error code details, refer to the following.
Page 673 Troubleshooting
When an error occurs, "1: Error occurrence" is written to the device set in the "PID Control Function Error Display" parameter,
and the error code is written to the device set in the "PID Control Function Error Code" parameter.
An error cannot be checked if no device is set to the parameters.
When an error has already occurred, and another error occurs with the error code written into the device set in "PID Control
Function Error Code", the error code already stored into the device will be overwritten.
The error status set to "PID Control Function Error Display" and "PID Control Function Error Code" can be cleared by any of
the following methods.
• Set "PID Control Execution Command" to "1: PID control executed".
• Rewrite the values in the devices directly.
• If the device set in each parameter is not a latch device, power off or reset the CPU module.
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