Special Memory Coil (M) in GX Works2 | Mitsubishi PLC System Bit Tutorial
In this video, explore the Special Memory Coils (M) in Mitsubishi GX Works2—also known as System Reserved Bits. These coils are automatically managed by the PLC and used for special operations like scan status, error detection, first scan pulse, and more.
📌 Topics Covered:
• What are Special M Coils?
• Common Special M addresses (e.g., M8000, M8002, M8033)
• First scan coil, always ON coil, error/status bits
• How to use these bits in ladder logic
• Best practices for system reliability
🔧 Examples Included:
• M8000 – Always ON
• M8001 – Always OFF
• M8002 – First scan pulse
• M8033 – 1-second pulse generator
🎯 Ideal for automation professionals, Mitsubishi PLC learners, and control system engineers.
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