ProSoft Technology WRC-CANR-DF User Manual

WRC-CANR-DF-DN
and
WRC-CANR-DF-SM
Series IV
CAN-Bus Fiber Optic Bus Extender
User’s Manual
Revision 4.03
W
estern 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.
1485 Exeter Road
Akron OH 44306
330-733-6662 (Phone)
330-733-6663 (FAX)
sales@wrcakron.com (Email)
http://www.wrcakron.com (Web)
SmartMux-Lite, CAN-Bus Extender and WRC are trademarks of Western Reserve Controls, Inc. DeviceNet is a trademark of ODVA, Inc. SDS is a trademark of the Honeywell, Inc. All other trademarks are property of their respective companies.
Label Markings
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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. S
1.2. F
1.3. B
1.4. R
ERIES IV SPECIFIC FEATURES EATURES ASIC OPERATION EFERENCE DOCUMENTS
...................................................................................................................................... 2
........................................................................................................................... 2
................................................................................................................ 3
........................................................................................................ 1
2. QUICK START ...................................................................................................................................... 4
3. GENERAL SPECIFICATIONS .............................................................................................................. 5
4. HARDWARE INSTALLATION AND CONFIGURATION ...................................................................... 6
4.1. O
4.2. LED O
4.3. DIP S
4.4. P
4.5. CAN N
VERVIEW
OWER REQUIREMENTS
...................................................................................................................................... 6
PERATION
WITCH SETTINGS
............................................................................................................................. 6
.................................................................................................................... 8
.................................................................................................................. 9
ETWORK CABLING AND CONFIGURATION
................................................................................ 9
4.5.1. Cable Lengths ........................................................................................................................... 9
4.5.2. Network Termination ............................................................................................................... 10
4.5.3. CAN-Bus Connection Wiring ................................................................................................... 11
4.5.4. Alternate Connector Options ................................................................................................... 12
4.6. F
IBER CABLE
................................................................................................................................. 13
5. OPERATION ....................................................................................................................................... 14
5.1. A
PPLICATION NOTES
..................................................................................................................... 14
6. ADDITIONAL WRC PRODUCTS ....................................................................................................... 17
7. TROUBLESHOOTING ........................................................................................................................ 19
8. SUMMARY OF CHANGES TO SERIES IV FROM REV 2 AND SERIES III ...................................... 21
8.1. DIP S
8.2. T
8.3. O
8.4. 2.2
8.5. S
8.6. E
WITCH BAUD RATE SETTINGS
ERMINATING RESISTORS
PERATION AND FUNCTIONALITY
KM MULTIMODE FIBER LINK AND DIAGNOSTICS INGLE-MODE FIBER LINK AND DIAGNOSTICS NHANCED
CAN S
.............................................................................................................. 21
UPPORT
............................................................................................................ 22
............................................................................................... 21
................................................................................................... 21
(WRC-CANR-DF-DN) ...................................... 21
(WRC-CANR-DF-SM) ............................................. 22
8.7. FIELD PROGRAMMABLE UPDATES ............................................................................................... 22
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Western Reserve Controls WRC-CANX-DF-DN and -SM Series IV User’s Manual
Revision 4.03
LIST OF TABLES
T
ABLE
4-1 M
T
ABLE
T
ABLE
T
ABLE
T
ABLE
T
ABLE
T
ABLE
T
ABLE
T
ABLE
T
ABLE
T
ABLE
T
ABLE
ODULE STATUS
4-2 L
OCAL DEVICE’S NETWORK STATUS
4-3 R
EMOTE DEVICE’S NETWORK STATUS
4-4 D
IAGNOSTIC STATUS
4-5 B
AUD RATE SETTINGS FOR SWITCHES
4-6 N
ETWORK MAXIMUM LENGTHS - DEVICENET
4-7 N
ETWORK MAXIMUM LENGTHS -
4-8 T
ERMINATING RESISTORS
4-9 D
EVICENET CABLE SPECIFICATIONS
4-10 SDS 6-1 A 6-2 A
CABLE SPECIFICATIONS DDITIONAL DDITIONAL
LED (
WRC P WRC P
LABELED
LEDS (
MS) ............................................................................................. 7
LEDS (
LABELED
LABELED
LEDS (
LABEL
NSA) ............................................................. 7
NSB) .............................................................. 7
DNG)................................................................................... 8
............................................................................................ 9
................................................................................. 10
SDS ........................................................................................... 10
............................................................................................................ 11
.............................................................................................. 12
....................................................................................................... 12
RODUCTS AVAILABLE FROM PROSOFT TECHNOLOGY RODUCTS AVAILABLE FROM
WRC .................................................................. 17
...................................... 17
LIST OF FIGURES
F
IGURE
1-1 T
F
IGURE
F
IGURE
F
IGURE
F
IGURE
F
IGURE
F
IGURE
YPICAL FIBER OPTIC BUS EXTENSION APPLICATION
4-1 WRC-CANR-DF-DN CAN-B 4-2 D
EVICENET NETWORK SIDE A CABLE CONNECTOR – MALE (PINS
4-3 SDS M 5-1 CANR-DF 5-2 CANR-DF 5-3 S
INI CONNECTOR
AMPLE
CANR-DF S
ON A DROP LINE ON MULTIPLE DROP LINES
ETUP
US EXTENDER
.............................................................................................................. 12
......................................................................................................... 15
.......................................................................................... 15
......................................................................................................... 16
........................................................................ 3
................................................................................. 6
) ................................................ 11
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Westrn Reserve Controls WRC-CANR-DF-DN and –SM User’s Manual PUB 14.1 Revision 4.03
1. 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. The primary purposes of this type of configuration is to extend the maximum length defined for one continuous network cable bus up to 2.2km (for multimode with WRC-CANR-DF­DN) or 12km (for single-mode with WRC-CANR-DF-SM) and to provide network protection from external, high-energy electrical interference, such as lightning storms, arc welders, etc. They can be connected in a bus trunk line or drop line.
A WRC-CANR can be used for quite a number of helpful purposes, including
To provide an electrically-isolated fiber transmission segment to your CAN bus for more secure network in high-energy environmental conditions
to extend the network beyond its absolute maximum at the slowest speed
to implement a longer network for a given baud rate (e.g., pushing a 500K baud network
beyond 100 m for DeviceNet)
to provide higher speed baud rates for a given network length
to extend the length of the drop cable (e.g., longer drops than 6 m for DeviceNet)
to provide 2600V electrical isolation between the 2 sub-nets
to create a unique network topology instead of a conventional bus structure, such as a
star configuration
The Extenders are transparent to the other nodes on the bus. They receive and actively re­transmit (store-and-forward) each message received at either side of the network without interpreting the message or acting upon it. The Fiber Extenders perform all appropriate CAN Bus arbitration on the copper bus as it re-transmits the message.
The WRC-CANR-DF-DN and WRC-CANR-DF-SM are members of WRC’s family of products that extend the system communications lengths for DeviceNet, CANopen, SDS (Smart Distributed System), J1939 and other CAN, V2.0, Part A or Part B, serial bus systems. By allowing the user to extend the bus length for any given speed, they assist the user in cost-effectively implementing I/O or other nodes on these buses at remote locations that would be more difficult or more expensive to do otherwise.
The unit derives its power through the copper network connector on Side A.
1.1. Series IV Specific Features
The Series IV WRC-CANR provides enhancements over previous the previous Series III products, including:
* Single Mode Fiber Cable Option is now available.
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Westrn Reserve Controls WRC-CANR-DF-DN and –SM User’s Manual PUB 14.1 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
* 9.6K, 10K, 20K, 40K, 50K, 100K 125K, 250K, 500K, 800K and 1M baud * Improved Reverse voltage protection and CAN data lines noise immunity * Increased message internal buffers – Automatic Memory Technology (AMT) operation * Eliminates the distinction between WRC’s earlier version Type 1 and Type 2 CANR * WARNING: Series IV F/W Revision 4.002 is not backward compatible.
1.2. Standard Features
The WRC-CANR-DF-DN and WRC-CANR-DF-SM have the following features:
* Extends CAN-Bus cable lengths - trunk line or drop lines * Expands the usable applications for CAN-Bus systems * Allows operation at higher speeds for specific distances * Provides superior electrical interference protection to copper cables * Switch-selectable Autobaud or fixed baud rate operation * Automatic speed selection - no configuration required * Isolates the two sections of the copper bus * Transparent to the Master and Slave devices on the bus * No address selection needed * No configuration parameters * DeviceNet; SDS; CANopen; J1939; CAN, V2.0, Part A and Part B compatible * Powered from the 24Vdc supplied by bus network or the user * Sealed NEMA-4X enclosure * Standard round, mini-style M18 connector with male pins for copper cable * For WRC-CANR-DF-DN: Standard Fiber Optic ST female connector, 62.5/125µm technology * For WRC-CANR-DF-SM: Standard Fiber Optic ST female connector, 9/125µm technology * Standard CAN chips manage bus error detection * Standard CAN chips handle message bus contention * Less than 900 µsec latency * Jumper-selectable termination built in on cable side * 4 bi-color (red/green) status LEDs * 2 green fiber transmit and receive LEDs
1.3. Basic Operation
Two CANR-DF units are included in an order and both are required for each application – both units are identical. It does not matter which is placed in which position with respect to the network topology or other devices on the network.
There are two bus connections for each CANR-DF, referred to as the Copper Cable Network Side (Side A) and Fiber Cable Network Side (Side B). The CAN Bus copper cable is connected to side A of the CANR-DF receives its power from side A.
Figure 1-1 shows a typical application.
Whenever a message is transmitted on the Bus to which CANR-DF is connected, CANR-DF receives the message on the side where it was initiated and performs a store-and-forward of the message to the other side. This action is performed in each direction and is performed for any valid CAN message independent of who generated it or to whom it is intended.
There is approximately a 900 µsec propagation delay of the message through the CANR-DF.
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Western Reserve Controls WRC-CANR-DF-DN and –SM User’s Manual PUB 14.2 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
Host PLC
Up to 2.2 km
Extender
Extender
Figure 1-1 Typical fiber optic bus extension application
Extender
Extender
1.4. Reference Documents
The following documents are referenced in this User’s Manual
* ODVA DeviceNet Specification
* Honeywell Micro Switch Specification GS 052 104, “SDS Smart Distributed System Physical
Layer Specification”, release date 12/8/1994
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Western Reserve Controls WRC-CANR-DF-DN and –SM User’s Manual PUB 14.2 Revision 4.03
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.
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) 62.5/125µµµµm, multi-
mode fiber cable lengths or two (2) 9/125µµµµm single mode fiber cable lengths with ST male connectors.
2. Leave the DIP switches on the 8-position switch block SW1 in the factory setting position of FF or all
OPEN positions to set the baudrate of each CANR-DF to Autobaud.
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.
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