User`s manual

Western Reserve Controls WRC-CANR-DF-DN User’s Manual
PUB 14.2 Series 4
4
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
two (2) CANR-DF
units and
two (2) 62.5/125, multi-mode
fiber cable lengths
, terminated with
ST male connectors
.
2. Set the baudrate of each CANR-DF to
Autobaud
by setting the switches on the 8-position switch
block
SW1
to
all OPEN
.
3. Using on-board jumper W1, terminate CAN-Bus network, as appropriate. (This is especially critical at
the higher baud rates.)
•
For trunk lines, install W1.
•
For drop lines, remove W1.
4.
Connect the fiber cables
to the CANR of one unit. Make sure they are clearly marked on both ends
to differentiate between the two lines.
5. Make sure that there is power on the CAN-Bus Network and
plug the Network cable with a 5-pin
round female MINI connector
into the CAN-Bus Extender.
6. 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. The DGN led might stay solid red until the fiber
cables are connected to the other CANR and both CANRs are powered up.
7.
Repeat steps 2-6 above for the second CANR-DF
.
Note: Be sure to connect the fiber from the TX port on one device to the RX port on the other.
8. Connect the desired network devices to both sides of the copper CAN bus.
9. 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.
10. You may observe the small green LEDs marked RXF and TXF, next to the fiber ports, illuminate when
data is received or transmitted.
11. The CAN-Bus Extenders are now operating on the network and they are ready operate in the CAN
network.
12. If any of the LED’s – marked DGN, NSA and NSB – blink red, 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.