![]() M8039 – If its coil is energized, the PLC will operate according to the scan time specified in D8039. M8034 – If the coil is energized, the output of the PLC is completely disabled. M8033 – If its coil is energized, the output image memory and data register contents are maintained when the PLC is stopped. The PLC performs a specific action after the coil is driven by the user program. This manual describes the programming using Structured Text (ST) in GX Works3. M8003 – Initialize pulse normally closed contact, OFF one scan cycle when PLC is running. M8002 – Initialize pulse normally open contact, ON one scan cycle when PLC is running. M8001-Operation monitors normally closed contacts, and the PLC keeps OFF when it is running. M8000-Operation monitors normally open contacts, and the PLC is always ON when it is running. If you want to know more, you need a programming manual. There are other special auxiliary relays, which are commonly used. It is a time pulse with periods of 10ms, 100ms, 1000ms (one second), m8020, m8021, m8022, which are standard real bits, representing benefits, zeros, and endings. When plc is just started, it closes a cycle, but 8001 is normally closed, 8002 is normally open, m8011, 8012, 8013. m8001 and m8002 are initialization pulses. ![]() ![]() ![]() PLC M8000-M8990 is a special internal relay of Mitsubishi PLC. ![]()
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