Controller LEDs

SynqNet | CAN

See Also: Node LEDs

SynqNet

SynqNet controller LEDs will BLINK to indicate a fault (or undiscovered network). A controller with no blinking LEDs is in normal cyclic operation (without faults). Each SynqNet port has two LEDs. And each LED has a particular function, which is described in further detail below.

Each controller will have four green LEDs:

 

 

LED State Table: SynqNet
LED
Port
Meaning
Controlled by
State
LED1
OUT
Link Activity
PHY
ON = link active
OFF = link inactive
LED2
OUT
Network Activity
MAC
ON = Tx and Rx active
(cyclic phase)
BLINK = Tx only active
(discovery phase)
OFF = Idle (shutdown phase), or during a network reset.
LED3
IN
Link Activity
PHY
ON = link active
OFF = link inactive
ON = Tx
LED4 IN Network Activity MAC
ON = Tx and Rx active
(cyclic phase)
BLINK = Tx only active
(discovery phase)
OFF = idle (shutdown phase), or during a network reset.

         LED1 and LED3 = Link Activity

 
  • On (Link Active)
  • Off (Link Inactive)

         LED2 and LED4 = Network Activity

 
  • On (Cyclic Phase--Tx and Rx are Active)
  • Off (Shutdown Phase--Idle State or network reset)
  • Blink (Discovery Phase--only Tx is Active)

CAN

The XMP-CAN controllers have two green LEDs. These LEDs give a visual representation of the activity on the CAN network. The locations of the LEDs vary depending on the type of XMP-CAN controller. The photos and table below show the locations and meanings of each LED.

 



T011-0004
XMP-SynqNet-CPCI-Dual

D9 = CAN 2
D10 = CAN 1



T014-0001
XMP-SynqNet-PCI-RJ-CAN

D8 = CAN 2
D9 = CAN 1


LED State Table: CAN
CAN1
CAN2
Code Executing
State
OFF
OFF
None
No power / No bootloader present
BLINK
ON
Bootloader
No firmware (waiting for firmware)
OFF
ON
Bootloader
Programming firmware
ON ON Firmware
No Configuration
ON OFF  
Bootloader present with valid firmware
ON Fast Blinking (0.25/sec) Firmware
CAN Bus Error
ON Slow Blinking (1/sec) Firmware
CAN Operational