Indicator Description
| Indicator | Description |
| PWR (Green) |
Module power indicator: On: Power supply is normal Off: Module is powered abnormally or not powered |
| RUN (Green) |
Communication indicator: On: Normal communication Off: Abnormal communication |
| S1 (Red) |
Channel disconnection detection indicator Flashing: CH0 sampling value is over range or in the disconnection state Off: CH0 sampling value is within the normal range |
| ...... |
...... |
| S4 (red) |
Channel disconnection detection indicator Flashing: CH3 sampling value is over range or in the disconnection state Off: CH3 sampling value is within the normal range |