Main Memory Check Error

Was bedeutet 00130000 hex ?

An error was detected in the memory check of the main memory in the CPU Unit's PLC Function Module. This error is continuously detected, indicating a major fault level, and will stop user program execution and controller operation.

• A conductive material has gotten inside the CPU Unit.
• Noise causing data corruption in memory, microcomputer malfunctioning, or memory write circuit malfunctioning.
• A software error.
• Data corruption caused by cosmic rays or radiation.
• CPU Unit hardware failure (memory element failure, memory peripheral circuit failure).

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1. 1

   If conductive material is suspected, blow out the CPU Unit with air.

2. 2

   Ensure the control panel is closed during operation and avoid metal working nearby.

3. 3

   If noise is suspected, check the FG (Frame Ground) and power supply lines, then implement noise countermeasures.

4. 4

   Cycle the power to the Controller; if the error persists or occurs frequently, replace the CPU Unit.

5. 5

   Perform regular inspections of the CPU Unit's memory and peripheral circuits.