Product overview
FC2001 and FC2002
10
Version: 2.0
Status display
Each Lightbus channel has 3 status LEDs.
Fig. 4: Status displays
1. Optical Err (Lightbus error):
◦ If a defect in the optical fiber ring occurs during operation, the red
LWL Err
LED is activated.
◦ If the optical fiber error is of a general nature, the
LWL Err
LED flashes.
◦ If the error has occurred during the resident address test, the
LWL Err
LED is on continuously.
The update of the process image is interrupted.
The diagnostic functions can be used to determine the cause of the error.
2. CPU Err (CPU error):
◦ If only the red
CPU Err
LED is on, this indicates a hardware error that cannot be corrected.
◦ If the
Run
LED is also on, a program error is present that may potentially be rectified through a
hardware reset.
3. Run:
◦ If only the green
Run
LED is on, the FC200x was initialized without errors and is ready for
operation.
