Delta AH500 series, Hardware Operation Manual

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A H 5 0 0 H a r d w a r e a n d O p e r a t i o n M a n u a l
8 - 1 9
8.1.3.2
System Settings – System Parameter
The parameters on System Parameter table are shown in the following window. You can set appropriate values
via a drop-down list or type the values in the box.

Clear Non-latched Device (Stop

Run)
This determines whether the states and values of the non-latched devices are cleared when the PLC
changes from Stop to Run.

Disable: All the states and values in the non-latched devices stay the same.

Enable: All the states and values in the non-latched devices are cleared and restored to defaults.

Y state (Stop

RUN)
This determines the states of the Y devices when the CPU module begins to run or stop.

Off: All Y devices are set to OFF.

Keep: The states of the Y devices stay the same.

Reset Button
Use the parameter here to enable or disable the function of reset button (RST) on the CPU module.

Disable: The function of reset button (RST) on the CPU module is closed.

Enable: The function of reset button (RST) on the CPU module is available.

Clear Button
Use the parameter here to enable or disable the function of clear button (CLR) on the CPU module.

Disable: The function of clear button (CLR) on the CPU module is closed.

Enable: The function of clear button (CLR) on the CPU module is available.

Error Log Storage Location
This specifies where to store the error log.

PLC : Store error logs in the PLC. The PLC can store up to twenty error logs. If there are more than
twenty error logs, the oldest error log is overwritten by the latest error log.

PLC & SD Card : When there are more than twenty error logs, the oldest error log is backed up to the
memory card before the oldest error log is overwritten in the PLC.