Indicator Description
| Module status indicator | ||
| Indicator | Status | Description |
| US (system power indicator) | Green steady on | Us powered normally |
| Yellow indicator steady on | Under normal power supply, Us undervoltage (indicated when below 20 V) | |
| Off | Us not powered | |
| Note: When Ua is powered normally and Us is not powered, the Us indicator does not light red as an indication but remains off | ||
| UA (peripheral power supply indicator) | Green steady on | Ua powered normally |
| Yellow indicator steady on | Under normal power supply, Ua undervoltage (indicated when below 20 V) | |
| Off | Ua not powered | |
| Note: When Us is powered normally and Ua is not powered, the Ua indicator lights red as a reminder | ||
| BF (communication indicator) | Red indicator steady on | Network communication failure |
| Red indicator off | Network communication normal | |
| SF | Red indicator steady on | Configured byte count inconsistent with the actually connected module byte count (configuration error) |
| Red blinking (1 Hz) | IO-Link configuration error: the configured bytes are fewer than the IO-Link slave's input/output bytes, or the configured model is inconsistent with the actually connected model; IO-Link configuration exceeds 32 bytes | |
| Red blinking (5 Hz) | IO-Link digital slave DO output short circuit | |
| Red indicator off | No error | |
| XF1 | XF1 port communication indicator: the indicator lighting up indicates an XF1 port communication connection | |
| XF2 | XF2 port communication indicator: the indicator lighting up indicates an XF2 port communication connection | |
| Port indicator | ||
| Indicator | Status | Description |
00 indicator (IO-Link mode) |
Green indicator steady on | IO-Link communication connection normal |
| Green blinking (1 Hz) | IO-Link communication connection abnormal | |
| Green indicator off | IO-Link mode not enabled | |
| Red blinking (5 Hz) | IO short circuit on the IO-Link digital slave | |
| Red indicator steady on | IO-Link PIN4 communication line short circuit | |
| 01 indicator (IO-Link mode) | Green indicator steady on | PIN2 has PNP input |
| Green indicator off | PIN2 has no PNP input | |
| Note: valid when the port is Class A; invalid for Class B. | ||
| 00 and 01 indicators (PNP input mode) | 00 indicator (PIN4) | |
| Green indicator steady on | PNP input present on PIN 4 | |
| Green indicator off | No PNP input on PIN 4 | |
| 01 indicator (PIN2) | ||
| Green indicator steady on | PIN2 has PNP input | |
| Green indicator off | PIN2 has no PNP input | |
| 00 indicator (PNP/NPN output mode) | 00 indicator (PIN4) | |
| Green indicator off | No output on PIN 4 | |
| Green indicator steady on | Output present on PIN 4 | |
| Red indicator steady on | PIN4 short circuit | |
| 01 indicator (PIN2) | ||
| Green indicator steady on | PIN2 has PNP input | |
| Green indicator off | PIN2 has no PNP input | |
| 00 and 01 indicators (fault status) | IO-Link mode | |
| 00 and 01 red indicators blinking simultaneously (1 Hz) | Power PIN1 short circuit | |
| PNP/NPN output mode, PNP input mode | ||
| 00 and 01 red indicators blinking simultaneously (1 Hz) | Power PIN1 short circuit | |