Diagnostic LEDs
The eight green Run LEDs indicate the operating states of the terminal channels.
Meaning of the LED displays
LED | Color | Channel | State | |
|---|---|---|---|---|
on | off | |||
Run 1 | green | 1 | normal operation | A watchdog timer overflow has occurred. The green LEDs go out if no process data are transferred between the controller and the Bus Coupler for more than 100 ms. |
Run 2 | 2 | |||
Run 3 | 3 | |||
Run 4 | 4 | |||
Run 5 | 5 | |||
Run 6 | 6 | |||
Run 7 | 7 | |||
Run 8 | 8 | |||