SRE1016 LED indicator description
| LED Indicator | Description |
| PWR (green) |
Module power LED: On: module power supply normal Always off: module not powered or power supply abnormal |
| RUN (green) |
Communication LED: On: Communication normal Off: Communication abnormal |
| Q1~Q16 (green) |
Digital input LED indicators: the corresponding LED lights up when the input channel detects a signal. |