IXXAT CAN@net II, Manual

Page: 13 / 21

Copyright IXXAT Automation GmbH
CAN@net II - Manual, V1.4
Connections and indicators
13
3.2.5 Link/Data Activity LED (ACT)
The green LED shows the connection status of the Ethernet interface.
Flashing
mode Description Causes/Hints
off No Link detected. •
No connection to an Ethernet net-
work
•
Network cable damaged
green Ethernet Link detected,
but no communication •
Network connection is ok, but there
is no network traffic at the moment
green / green
blinking Ethernet communica-
tion •
Network traffic detected
Table 3-8: States of the Link/Data Activity LED
3.2.6 CAN LED (CAN)
The two-color (green and red) LED for CAN flashes on each CAN message (trans-
mitted or received) green, if there was no error detected.
If the CAN controller is in the „Error warning“ or „Error passive“ state, the LED
flashes red on each message. In the „Bus off“ state the LED is continuously red.
Flashing
mode
Description Causes/Hints
off No CAN
communication •
No CAN communication
•
Device not connected to CAN
green / green
blinking CAN communication •
With each CAN message the LED is
triggered
red blinking CAN communication,
CAN controller in error
state
•
The CAN controller is in the „Error
Warning“ or „Error passive“ state,
the reception/transmission of CAN
messages is still possible
red Bus Off •
The CAN controller is in the „Bus
Off“ state. No more CAN communi-
cation possible
Table 3-9: States of the CAN LED