Definition of indicators
| Indicator type |
Color |
Status |
Meaning |
| Power supply PWR |
Green |
On |
The power supply is normal |
| Off |
The power supply is abnormal or there is no corresponding power loading. |
| Running indicatorRUN/STOP |
White/Red |
White Flash(1Hz) |
The main controller is in RUN state, and the user program is normal. |
| Red On |
The main controller is in STOP state, and the user program is stopped. |
| Red Flash(1Hz) |
Some or more diagnosable faults of controller (flashing at 1Hz N times, OFF for 30s, cycle) |
| OFF |
The user program area is empty or the user project is invalid |
| Communication indicatorCOM |
White |
Flash(1Hz) |
Serial communication is sending and receiving data |
| OFF |
Serial communication is not sending or receiving data |
| Hard disk indicator HDD |
White |
Flash(1Hz) |
Be able to access HDD hard drive or the hard drive is performing read and write operations. |
| OFF |
Unable to access or no access to HDD hard drive |
Last modified: 2025-04-16
