LED Status Display¶
The LEDs are located at the front of module. There are 2 different groups:
- The 5 system LEDs (PWR, NET, DC, S-ERR and I/O-Bus) show the operation status of the module and display possible errors.
- The 27 process LEDs (UP, UP3, inputs, outputs, CH-ERR1 to CH-ERR3) show the process supply voltage and the statuses of the inputs and outputs and display possible errors.
Status of the 5 System-LEDs
| LED | Color | off | on | flashing | 1x flash | 2x flash |
|---|---|---|---|---|---|---|
| PWR/RUN | green | Error in the internal supply voltage or process voltage missing | Internal supply voltage OK | Module is not configured | – | – |
| yellow | – | – | – | – | – | |
| NET | green | Init | operational | pre-operational | safe-operational | – |
| red | No Error | PDI Watchdog Timeout | Invalid Configuration | Unsolicited State Change | Application time out | |
| DC *) | green | Distributed Clock not active | Distributed Clock active | – | – | – |
| red | – | – | – | – | – | |
| S-ERR | red | No error | Internal error | – | – | – |
| I/O-Bus | green | No expansion modules connected or communication error | — | — | – | – |
| ETH1 | green | No EtherCAT® connection | Link OK No data transfer |
Link OK Data transfer OK |
– | – |
| yellow | – | – | – | – | – | |
| ETH2 | green | No EtherCAT® connection | Link OK No data transfer |
Link OK Data transfer OK |
– | – |
| yellow | – | – | – | – | – |
*) The status of this LED is only significant if the camswitch functionality is enabled
Status of the 27 process LEDs
| LED | Color | OFF | ON | Flashing |
|---|---|---|---|---|
| AI0 to AI3 | yellow | Input is OFF | Input is ON (brightness depends on the value of the analog signal) | – |
| AO0 to AO1 | yellow | Output is OFF | Output is ON (brightness depends on the value of the analog signal) | – |
| DI0 to DI7 | yellow | Input is OFF | Input is ON (the input voltage is even displayed if the supply voltage is OFF) | – |
| DO0 toDO7 | yellow | Output is OFF | Output is ON | – |
| UP | green | Process supply voltage missing | Process supply voltage OK and initialization finished | – |
| UP3 | green | Process supply voltage missing | Process supply voltage OK | – |
| CH-ERR1 to CH-ERR3 | red | No error or process supply voltage missing | Internal error | Error on one channel of the corresponding group |