: Drive an output (like an alarm lamp or buzzer) directly with an M8013 contact to create a repeating 1-second pulse. Time-Based Counting
New programmers often ask: "Is M8013 an input or an output?" m8013 mitsubishi plc
On the HMI, animate an invisible shape or text color based on M100. If the blinking stops, the operator knows the PLC is in STOP mode or has faulted. : Drive an output (like an alarm lamp
Functions of Mitsubishi PLC special soft components - EEWorld Functions of Mitsubishi PLC special soft components -
LD M8013 ALT Y10 (Alternate output – on many Mitsubishi models)
The clock pulse is a testament to elegant automation design: a single bit of functionality that replaces dozens of lines of timer logic. Whether you are building a simple blinking beacon, a heartbeat monitor, a long-duration counter, or a testing routine, M8013 offers a standard, reliable, and scan-friendly solution.
In the architecture of Mitsubishi PLCs, internal relays (or auxiliary relays) are used to hold state or execute logic. These are designated with an "M" prefix. The range M8000 to M8511 (depending on the specific PLC model) is reserved for . These are not standard coils that you energize with your logic; rather, they are system-defined flags generated by the PLC’s operating system.