Hardware ports, switches and LEDs
LED triple flash
a sequence of three short flashes (approximately 200ms), separated by an off
phase (approximately 200ms). The sequence is finished by a long off phase
(approximately 1000 ms).
If one bicolor Status LED is used instead of two single color LEDs, this LED shall indicate both
the physical bus status and the status of the CANopen
red and green.
CANopen ERROR LED (red)
The CANopen Error LED indicates the status of the CAN physical layer and indicates errors due
to missing CAN messages (SYNC, GUARD or HEARTBEAT).
ERROR LED
State
Off
No error
Single flash
Warning limit reached At least one of the error counters of the CAN controller has
Flickering
AutoBaud/LSS
Double flash
Error Control Event
Triple flash
Sync Error
On
Bus Off
If at a given time several errors are present, the error with the highest number is indicated (e.g. if
NMT Error and Sync Error occur, the SYNC error is indicated).
CANopen RUN LED (green)
The CANopen RUN LED indiates the status of the CANopen network state machine
CAN RUN LED State
Flickering
AutoBaud/LSS
Single flash
STOPPED
Blinking
PRE-OPERATIONAL
On
OPERATIONAL
Whilst the device is executing a reset the CANopen RUN LED shall be off.
In case there is a conflict between turning the LED on green versus red, the LED may be turned
on red. Apart from this situation, the bicolor status LED shall combine the behavior of the CAN
Error LED.
10.3.3 LED "Power / State"
The Power/State LED signals the status and operating condition of the CANopen interface and
can have the following conditions in the data exchange mode: (see Chapter 10.3.2)
28
UNIGATE
Description
The Device is in working condition.
reached or exceeded the warning level (too many error frames).
Auto Baudrate detection in progress or LSS services in
progress (alternately flickering with RUN LED).
A guard event (NMT-Slave or NMT-master) or a heartbeat event
(Heartbeat consumer) has occurred.
The SYNC message has not been received within the configured
communication cycle period time out (see Object Dictionary Entry
0x1006).
The CAN controller is'bus off
Description
Auto Baudrate detection in progress or LSS services in progress
(alternately flickering with RUN LED).
The device is in STOPPED state.
The device is in the PRE-OPERATIONAL state.
The device is in the OPERATIONAL state.
®
fieldbus gateway UNIGATE
Deutschmann Automation GmbH & Co. KG
®
state machine. This bicolor LED shall be
®
CM - CANopen V. 1.4
.
23.6.17
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