Displays¶
Statuses of the LEDs:
| LED | Status | Color | OFF | ON | Flashing |
|---|---|---|---|---|---|
| DO0 to DO15 | Digital output | yellow | Output is OFF | Output is ON (the input voltage is even displayed if the supply voltage is OFF) | – |
| DC16 to DC23 | Digital input/output | yellow | Input/output is OFF | Input/output is ON (the input voltage is even displayed if the supply voltage is OFF) | – |
| AI0 to AI3 | Analog input | yellow | Input is OFF | Input is ON (brightness depends on the value of the analog signal) | – |
| AO0 to AO1 | Analog output | yellow | Output is OFF | Output is ON (brightness depends on the value of the analog signal) | – |
| UP | Process supply voltage 24 V DC via terminal | green | Process supply voltage is missing | Process supply voltage OK | – |
| CH-ERR1 | Channel Error, error messages in groups (digital inputs/outputs combined into the groups 1, 2, 3, 4) | red | No error or process supply voltage is missing | Serious error within the corresponding group | Serious error within the corresponding group (e.g. short-circuit at an output) |
| CH-ERR2 | red | ||||
| CH-ERR3 | red | ||||
| CH-ERR4 | red | ||||
| CH-ERR *) | Module Error | red | – | Internal error | – |
| *) All of the LEDs CH-ERR1, CH-ERR2 to CH-ERR4 light up together | |||||