WRC-CANR-DF-DN and WRC-CANR-DF-SM Series IV CAN-Bus Fiber Optic Bus Extender User’s Manual Revision 4.03 Western Reserve Controls, Inc.
Western Reserve Controls WRC-CANX-DF-DN and -SM Series IV User’s Manual Revision 4.03 Although every effort has been made to insure the accuracy of this document, all information is subject to change without notice. WRC takes no liability for any errors in this document or for direct, indirect, incidental or consequential damage resulting from the use of this manual. Document PUB 14.2 Rev 4.03 January 2012 Copyright © 1998-2012 WRC Western Reserve Controls, Inc.
Western Reserve Controls WRC-CANX-DF-DN and -SM Series IV User’s Manual Revision 4.03 TABLE OF CONTENTS 1. OVERVIEW ........................................................................................................................................... 1 1.1. 1.2. 1.3. 1.4. SERIES IV SPECIFIC FEATURES........................................................................................................ 1 FEATURES .....................................................................................
Western Reserve Controls WRC-CANX-DF-DN and -SM Series IV User’s Manual Revision 4.03 LIST OF TABLES TABLE 4-1 MODULE STATUS LED (LABELED MS) ............................................................................................. 7 TABLE 4-2 LOCAL DEVICE’S NETWORK STATUS LEDS (LABELED NSA)............................................................. 7 TABLE 4-3 REMOTE DEVICE’S NETWORK STATUS LEDS (LABEL NSB)..............................................................
Westrn Reserve Controls PUB 14.1 1. WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Overview The WRC-CANR-DF Fiber Optic CAN Bus Extenders convert a copper cable medium CAN-Bus network to a fiber optic medium. The WRC-CANR-DF-DN uses multimode fiber optic cable, while the WRC-CANR-DF-SM uses single-mode fiber optic cable. Both are always used in pairs with a length of fiber media in between.
Westrn Reserve Controls PUB 14.1 * * * * * WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Expanded DIP Switch settings allow selection for CAN-bus (including CANopen) speeds up to 1 M Baud in addition to the standard DeviceNet Baudrates * 9.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 The CANR-DF is not addressed as a specific device on the Bus and cannot be interrogated by other nodes. It is transparent to all other nodes on the bus. Fiber-optic extenders especially useful for outdoor applications Host PLC Up to 2.2 km Extender Extender Figure 1-1 Typical fiber optic bus extension application 1.4.
Western Reserve Controls PUB 14.2 2. WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 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. WARNING: Series IV F/W Revision 4.002 is not backward compatible. 1. These units are used in pairs. You need two (2) CANR-DF units and two (2) 62.
Western Reserve Controls PUB 14.2 3. WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 General Specifications Product: WRC-CANR-DF-DN and WRC-CANR-DF-SM, Series IV CAN-Bus Extender and Fiber Optic Converter Description: Electrical Extender to extend the cable distances of CAN-based protocol products and convert the copper network to a fiber optic link. Device Type: Communications Extender Product Revision: 4.xx WARNING: Series IV F/W Revision 4.
Western Reserve Controls PUB 14.2 4. WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 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. NSA DeviceNet Male, Mini W1 DGN MS ST Fiber Connectors NETWORK A 2.27” ( 57,7 mm) --NET A- --NET B-1 2 3 4 5 6 7 8 SW1 OPEN NSB NETWORK B 5.11” (130 mm) Figure 4-1 WRC-CANR-DF-xx CAN-Bus Extender (2 per) 4.2.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Table 4-1 Module Status LED (labeled MS) LED State Module Status Meaning OFF No Power There is no power through DeviceNet. Green Device Operational WRC-CANR is operating normally. Flashing Red Minor Fault Advanced Memory Technology (AMT) buffers space exceeded. Red Unrecoverable Fault WRC-CANR may be damaged. Flashing Red/Green Device Self-Testing WRC-CANR is in self-test mode.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Table 4-4 Diagnostic Status LEDs (labeled DNG) LED State Module Status Meaning OFF Normal Normal operation. Green Fiber Link OK Serial link to fiber network operating. Red Time-out Flashing Red Communications error Unit has not received a serial message (status or can) from the fiber link. Internal FIFO stack has overflowed on the fiber link interface.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Table 4-5 Baud Rate Settings for Switches Baud rate 125K 250K 500K Local Position 1 Position 2 Remote Position 5 Position 6 CLOSED CLOSED CLOSED CLOSED CLOSED CLOSED Position 3 Position 7 CLOSED CLOSED OPEN Position 4 Position 8 CLOSED OPEN CLOSED Autobaud CLOSED CLOSED OPEN OPEN 9.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Table 4-6 Network Maximum Lengths - DeviceNet Baud Rate 125 Kbits/s 250 Kbits/s 500 Kbits/s Trunk Line Length Maximum Distance Meters Feet 500 m 1640 ft 250 m 820 ft 100 m 328 ft Drop Length Maximum Meters Feet 6m 20 ft 6m 20 ft 6m 20 ft Cumulative Meters Feet 156 m 512 ft. 78 m 256 ft. 39 m 128 ft. DeviceNet has a limit of 64 nodes per network for any baud rate.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 When CANR-DF is used in a drop line (the Network A side is toward the main trunk), the Network A connection must not be terminated. The user must remove the built-in terminator by removing the jumper plug at W1.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Pin # 1 2 3 4 5 Function Drain V+ VCAN_H CAN_L Wire color bare red black white blue Table 4-9 DeviceNet cable specifications Figure 4-3 SDS Mini Connector Pin # 1 2 3 4 5 Function Drain V+ GND CAN_H CAN_L Wire color Bare Brown Blue Black White Table 4-10 SDS cable specifications 4.5.4. Alternate Connector Options Cable sets may be purchased from an appropriate vendor or custom-made.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 4.6. Fiber Cable The WRC-CANR-DF-DN employs fiber optic driver and receiver that are capable of operating 62.5/125µm multi-mode cable a distance of 2200 meters. They use ST connectors. The Series IV WRCCANR-DF-SM can operate with 9/125µm single mode fiber optic cable. Two fiber cables are required. Each fiber cable is connected between TX of one CANR and RX of the other.
Western Reserve Controls PUB 14.2 5. WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Operation Each CANR system receives CAN messages and then packs and transmits the messages over the fiber link to the other CANR, which produces the messages onto its CAN bus network. The CANR pair provides electrical isolation between the two CAN sub-networks. It has no CAN address and is logically transparent to the CAN network protocol. The CANR does not interpret nor act on the CAN messages.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Linear Bus Topology - extended fiber drop Terminator Tap Terminator Drop Line Fiber Extender Nodes 2.2km Fiber Fiber Extender Zero Drop Short Drops Figure 5-1 CANR-DF on a drop line Linear Bus Topology - multiple fiber drops Terminator Taps Drop Line Terminator Fiber Extender Fiber Extender Nodes 2.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.
Western Reserve Controls PUB 14.2 6. WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Additional WRC Products The following WRC products and components are also available.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Table 6-2 Additional WRC Products continued: Discrete and Analog I/O block – 24 DIO, 32 AIO W2-JDAIO24 Discrete and Analog I/O block – 48IO, 32 AIO W2-JDAIO48 Discrete I/O block – 8 DIs, 8 DOs, 4 AIs W5-JDB16x The following components can be used with a WRC-CANR CAN-Bus Extender for replacements or spare parts, or as complementary devices as a part of your DeviceNet system. • Part WRC P/N Equivalent Mfr.
Western Reserve Controls PUB 14.2 7. WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Troubleshooting This section identifies some of the common problem observed when commissioning or operating a CANR-DF Extender. Problem: DeviceNet devices will not communicate on the network Module Status LED is solid Green Network Status LEDs are flashing Green at ½ second intervals Meaning No transmissions have been received by the CANX for 0.5 seconds. Possible Solutions: 1.
Western Reserve Controls PUB 14.2 WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 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.
Western Reserve Controls PUB 14.2 8. WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Summary of Changes to Series IV from Rev 2 and Series III To facilitate implementation of the new Series III CANR products for customers that are currently users of the CANR Revision 2.xx products, this section summarizes the product changes from Rev 2 to Series 3. 8.1. DIP Switch Baud Rate Settings Several new options exist for setting the baud rate on the CANR Series IV.
Western Reserve Controls PUB 14.2 • WRC-CANR-DF-DN and –SM User’s Manual Revision 4.03 Additional diagnostics: o A “heartbeat” feature has been added to the fiber link on Series III and IV WRCCANR-DF-DN units. A heartbeat message is generated between the 2 CANR units when no CAN activity is present for approximately 0.5 sec, allowing each unit to confirm the status of the link. o The NSB LED indicates the health of the fiber connection for both normal traffic and the heartbeat. 8.5.
