Diagnostics
7.4 LEDs on the CBE20 Communication Board
7.4
LEDs on the CBE20 Communication Board
Table 7- 7
Meaning of the LEDs at ports 1 to 4 of the X1400 interface
LED
Color
Link port
–
Green
Activity
–
port
Yellow
Table 7- 8
Meaning of the Sync and Fault LEDs on the CBE20
LED
Color
Fault
–
Red
Sync
–
Green
336
Status
Description
Off
The electronics power supply is missing or outside the permissible tolerance range
(link missing or defective).
Continu-
A different device is connected to port x and a physical connection exists.
ous light
Off
The electronics power supply is missing or outside the permissible tolerance range
(no activity).
Flashing
Data is being received or sent at port x.
Status
Description
Off
If the link port LED is green:
The CBE20 is operating normally, data is being exchanged with the configured IO
Controller.
Flashing
The response monitoring interval has elapsed.
•
Communication is interrupted.
•
The IP address is incorrect.
•
Incorrect or no configuration
•
Incorrect parameter settings
•
Incorrect or missing device name
•
IO Controller not connected/switched off, although an Ethernet connection has
•
been established.
Other CBE20 errors
•
Continu-
CBE20 bus error
ous light
No physical connection to a subnet/switch.
•
Incorrect transmission rate
•
Full duplex transmission is not activated.
•
Off
If the link port LED is green:
The Control Unit task system is not synchronized with the IRT clock. An internal
substitute clock is generated.
Flashing
The Control Unit task system has synchronized with the IRT clock and data is being
exchanged.
Continu-
The Task system and the MC-PLL have synchronized with the IRT clock.
ous light
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A