LED Status Display¶
The LEDs are located at the front of module. There are 2 different groups:
- The 5 system LEDs (PWR, STA1 ETH, STA2 ETH, 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.
| LED | Color | OFF | ON | Flashing |
|---|---|---|---|---|
| PWR/RUN | green | Process supply voltage missing | Internal supply voltage OK, module ready for communication with IO Controller | Start-up / preparing communication |
| yellow | — | — | — | |
STA1 ETH (System-LED “BF”) |
green | — | Device configured, cyclic data exchange running | — |
| red | — | — | Device is not configured | |
| STA2 ETH (System-LED “SF”) | green | — | — | Got identification request from IO Controller |
| red | No system error | System error (collective error) | — | |
| S-ERR | red | No error | Internal error | – |
| I/O-Bus | green | No expansion modules connected or communication error | Expansion modules connected and operational | — |
| ETH1 | green | No connection at Ethernet interface | Connected to Ethernet interface | — |
| yellow | — | Device is transmitting telegrams | Device is transmitting telegrams | |
| ETH2 | green | No connection at Ethernet interface | Connected to Ethernet interface | — |
| yellow | — | Device is transmitting telegrams | Device is transmitting telegrams |
| 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 |