ProSoft Technology WRC-CANR-DF - Manual (Page 24)

Western Reserve Controls WRC-CANR-DF-DN and –SM User’s Manual
PUB 14.2 Revision 4.03
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Problem:
Device will not communicate on the network
Module Status LED is solid Green
Network Status LED is flashing Green
Possible Solutions:
1. CANR does not see CAN messages on the network.
2. Network does not have a terminating resistor. Add a 121 ohm resistor across the
CAN_H and CAN_L signals at the first and last nodes.
3. Network cable is broken or disconnected.
4. Network cable is miswired.
Problem:
Device will not communicate on the network
DGN is solid red or off
Possible Solutions:
1. Fiber Link is broken or not connected
2. Reterminate, Replace or Reconnect the optical fiber.