Operation; Leds - HMS Networks Ixxat CAN-CR200 User Manual

Operation

7 Operation
7.1

LEDs

P 1 2 3
Fig. 9 LED array
CAN-CR220 has only LED P and CAN LED 1 and 2.
7.1.1 Power LED
Power LED P indicates the status of the power supply.
LED state
Off
Green
Red
7.1.2 CAN LEDs
CAN LEDs 1, 2 and 3 indicate the status of the CAN connection.
LED state
Off
Green or green
flashing
Red flashing
Red
CAN Repeater User Manual
Description
No power
Power ok
Device is reset
Description
No CAN communication
CAN communication
CAN communication, but errors
Dominant-lock
Comments
Device not connected to power supply, or fuses of device
or internal power supply damaged
Device fully functional
After power-up the device is set into reset, LEDs are red
during reset (normal duration: about 200 ms). Or power
supply is damaged, internal voltage is below necessary
level.
Comments
No CAN communication, device not connected to CAN
LED is triggered when a dominant bit is transmitted to the
respective CAN port.
Each CAN circuit transmits and reads back the transmitted
bits. An error occurs, if the repeater transmits a dominant
bit, but measures a recessive bit.
External device applies a permanent dominant level to the
CAN.
14 (22)
4.01.0067.20000 3.4 en-US