Western Reserve Controls
WRC-CANR-DF-DN and –SM User’s Manual
PUB 14.2
Revision 4.03
6
4. Hardware Installation and Configuration
4.1. Overview
A CAN-Bus Extender is a single device connected to two parts of a single CAN-Bus network. The
CANR-DF is a NEMA-4X enclosure and is panel mounted.
--NET A- --NET B--
1 2 3 4 5 6 7 8
OPEN
NSA
NSB
DGN
MS
NETWORK A
5.11” (130 mm)
2.27” ( 57,7 mm)
SW1
NETWORK B
DeviceNet
Male, Mini
ST Fiber
Connectors
W1
Figure 4-1 WRC-CANR-DF-xx CAN-Bus Extender (2 per)
4.2. LED Operation
A WRC-CANR-DF-DN Multiplexer has six (6) LEDs that provide visual status information to the
user about the product and the DeviceNet network. The LED’s definitions are summarized as follows and
more thoroughly in the tables below in Table 4-1, Table 4-2 and Table 4-4.
•
MS
– Module Status – indicates the general health of the unit and its ability to Store-and-Forward
messages.
•
NSA
– Network Status A – indicates the condition of the CAN bus connection of this Local unit.
•
NSB
– Network Status B – indicates the condition of the Remote unit’s CAN bus operation on the
other end of the fiber cable.
•
DGN
– Diagnostic – indicates status of the fiber-optic link.
•
RXF
– Receive Fiber – green indicates electrical signals being received by the CANR.
•
TXF
– Receive Fiber – green indicates electrical signals being sent by the CANR.
