User`s manual

Western Reserve Controls WRC-CANR-DF-DN User’s Manual

PUB 14.1

2. Quick Start

To quickly and easily install your CAN-Bus Fiber Optic Extenders in your DeviceNet

system, follow the instructions below. For more details, see Section 4.

1. These units are used in pairs. You need a CANR-DF Type 1, a CANR-DF Type 2 and two (2) fiber

cable lengths, terminated with ST male connectors.

2. Set the baudrate of each CANR-DF using switches 5 and 6 on the 6-position switch block SW1.

Table 2-1

Baudrate Switch 5 Switch 6

125k ON ON

250K ON OFF

500K OFF ON

3. Make sure that there is power on the copper CAN-Bus Network A and plug the Network A cable into the

CAN-Bus Extender on the side marked Network A.

4. The CANR-DF Extender will undergo its initialization sequence, flashing the LEDs. After approximately

5 seconds, the Module Status LED (labeled “MS”) will go on solid green and network LEDs (labeled

“NSA” and “NSB”) will flash green.

5. Connect the fiber cables to the Fiber Network Side B.

6. Connect the second CANR-DF as above. Be sure to connect the fiber from the TX port on one device to

the RX port on the other.

7. Both Network A and B Status LEDs (NSA and NSB) will go on solid on each unit once a valid CAN

message is received into either side of the Extender and the baudrate auto-detect has been

successfully performed (if applicable).

8. You may observe the small green LEDs marked RXF and TXF, next to the fiber ports, flicker when data

is received or transmitted.

9. The CAN-Bus Extenders are now operating on the network and they are ready operate in the CAN

network.

10. If the red LED marked DGN (diagnostic) blinks, this indicates that the internal message buffer on the

CANR-DF has been filled before the device could transfer all previously received messages out the other

side. Some messages may be lost. Slowing down the scan rate should help eliminate this.