M8013 Mitsubishi Plc -
Next time you need a simple, dependable timebase in your Mitsubishi PLC, reach for M8013. It’s small, it’s free, and it just works.
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.
Imagine you have a machine that must receive a “cycle complete” signal within 30 seconds. You can use M8013 to count down a timeout without blocking the scan:
The primary utility of the M8013 lies in its ability to provide a consistent time base without the need for manual timer instructions like T0 or T1. 1. Visual Indicators and Flashing Alarms
A common question among novice programmers is whether M8013 is affected by the program scan time. Because M8013 is driven by the hardware or the real-time operating system of the PLC, its timing is largely independent of the logic scan. Even if your program logic is complex and the scan time increases to 20ms or 50ms, M8013 will maintain its precise 1-second interval.
| Relay | Pulse Rate | Common Use | | :--- | :--- | :--- | | M8011 | 10ms (100 Hz) | High-speed flashing, test pulses | | M8012 | 100ms (10 Hz) | Fast blinking, short delays | | | 1 second (0.5 Hz) | Human-scale timing, indicators | | M8014 | 1 minute (0.0167 Hz) | Long-interval polling, hour meters |