Viewing Error Logs - Delta AH Series Operation Manual

9.1.4

Viewing Error Logs

When an error occurs, a corresponding error code generated by a system is recorded in a CPU. Twenty error logs at most
can be stored in the CPU. If there are more than twenty error logs generated, the oldest error log will be overwritten by the
latest error log. However, if a memory card is installed in the CPU, the twenty error logs are automatically backed up in the
memory card before the oldest error log is overwritten. One thousand error logs at most can be stored in the memory card.
If there are more than 1000 error logs which will be stored in the memory card, the twenty oldest error logs will be
overwritten by the twenty latest error logs.
(1) After ISPSoft is started, click System Log on the PLC menu.
(2) The System Log window is as follows. You can refresh the error logs by clicking Refresh, and clear the error logs in
the window and the CPU by clicking Clear Log.

Rack number & Slot number: If errors are generated by extension modules, the racks and the slots on which the

Module ID: The IDs of CPU modules, or those of extension modules

Error Code: The error code of this error log

Date & Time: The time when errors occur. The lateset error log is displayed in the upper row.

The simple description related to the error log is in the last field.
extension modules are installed are recorded in these columns. If no rack number
and no slot number are recorded, it means that an error occurs in a CPU module.
Ch a pt er 9 T r o u bl es h oo t in g
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