- 15 -
cr09_01_2
LED indicators
The fieldbus board is equipped with four bi-colour LED's at the front of the board
showing the status.
LED 1 and 4 are reserved for future use.
LED 2 - Network status
Colour
Frequency
Description
Off
-
Not powered / Not on line
Green
Steady on
Link OK, On line, Connected
Green
Flashing
On line, Not connected
Red
Steady on
Critical link failure
Red
Flashing
Connection timeout
LED 3 - Module status
Colour
Frequency
Description
Off
-
No power to device
Green
Steady on
Device operational
Green
Flashing
Data size bigger than configured
Red
Steady on
Unrecoverable fault
Red
Flashing
Minor fault
Watchdog LED
The fieldbus board includes a bi-colour watchdog LED, indicating the status of the
module.
Colour
Frequency
Indication
Red
-
Unspecified internal error, or running in bootloader mode
Red
1 Hz
RAM failure
Red
2 Hz
ASIC or FLASH failure
Red
4 Hz
DPRAM failure
Green
1 Hz
Module initialised and running OK
Green
2 Hz
Module not initialised