State LEDs¶
During the power ON procedure, the module initializes automatically. All LEDs (except the channel LEDs) are ON during this time.
| LED | State | Color | LED = OFF | LED = ON | LED flashes |
|---|---|---|---|---|---|
Inputs 00…07 |
digital input | yellow | Input = OFF | Input = ON (the input voltage is even displayed if the supply voltage is OFF). | – |
Outputs 08…11 (relays) |
digital output | yellow | Relay output = OFF | Relay output = ON | – |
| UP | Process supply voltage 24 VDC via terminal | green | Process supply voltage is missing | Process supply voltage OK | – |
| CH-ERR2 | Channel error, error messages in groups (digital inputs/outputs combined into the groups 2 and 3) | red | No error or process supply voltage is missing | Severe error within the corresponding group | Error on one channel of the corresponding group |
| CH-ERR3 | red | ||||
| CH-ERR *) | Module Error | red | – | Internal error | – |
| *) All of the LEDs CH-ERR2 to CH-ERR3 light up together | |||||