IPEH-002026 Imprint PCAN is a registered trademark of PEAK-System Technik GmbH. CiA® is a registered community trade mark of CAN in Automation e.V. All other product names in this document may be the trademarks or registered trademarks of their respective companies.
High-speed CAN or Low-speed CAN. The modules are supplied with power externally. The PCAN-LWL can be used in CAN FD buses with data bit rates up to 5 Mbit/s and nominal bit rates up to 500 kbit/s.
High-speed CAN bus (ISO 11898-2, max. 500 kbit/s) or Low-speed CAN bus (ISO 11898-3, max. 125 kbit/s) D-Sub sockets for connection to the PCAN-LWL modules (pin assignment according to CiA® 106 specification) Power supply with power supply unit or via the D-Sub connector 1.3 Scope of Supply...
Sub connector on the left casing side. The pin assignment for CAN corresponds to the specification CiA® 106. Pin assignment D-Sub connector Pin 9 can be used for power supply of a PCAN-LWL module. See section 3.2 Choice of the Input for the Power Supply on page 11 for further information. 2 Connectors PCAN-LWL User Manual 3.0.0...
2.2 Optical Waveguides (OWG) Casing side with OWG connectors, voltage socket, and LEDs A PCAN-LWL module has two standardized ST connectors for the optical waveguides. The connections are separately in charge of sending and receiving light signals. Both optical waveguides of the duplex line are marked with colors at each connector.
2.3 Voltage Supply A PCAN-LWL module needs a DC voltage of 6.5 to 30 V. At the voltage input socket you can connect the supplied power supply unit. Assignment voltage input socket; Diameter of applied barrel connector: supply voltage: 6.5 - 30 V a = 5.5 mm, b = 2.1 mm;...
3 Configuration At the PCAN-LWL housing, the termination for a Low-speed CAN bus can be adjusted by a toggle switch and the termination for a High-speed CAN bus can be adjusted by a rotary switch. On the circuit board of the PCAN-LWL module, you can do the following jumper...
3.1 Choice Between High-speed and Lowspeed CAN Transceiver The PCAN-LWL set can be integrated into a High-speed CAN bus as well as into a Low-speed CAN bus. The corresponding CAN transceiver and mode must be selected by a jumper block on the circuit boards of the PCAN-LWL modules.
9 of the D-Sub connector (in each case 6.5 - 30 V DC). The power supply input to be used must be set with the jumper JP12 on the circuit board of the PCAN-LWL module. Position jumper JP12 Voltage supply via…...
Otherwise, there are interfering signal reflections and the transceivers of the connected CAN nodes (CAN interface, control unit) do not work. In the PCAN-LWL module, the High-speed CAN bus is terminated with 120 Ω between CAN_L and CAN_H. This termination can be switched on or off by using the turn switch that is accessible via the whole on the top side of the module casing.
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(parallel connection of all terminating resistors). A single node is terminated with 500 Ω up to 6 kΩ. To simplify the adaptation of the PCAN-LWL module to existing networks, you can switch between the terminating resistors 510 Ω (up) and 5.6 kΩ (down) with a toggle switch at the casing.
PCAN-LWL modules. 4.2 Transit Delay For the PCAN-LWL set (2 x PCAN-LWL + 5 m OWG stretch), a transit delay arises by the conversion of electric signals to light signals in the two PCAN-LWL modules:...
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Bit rate Max. bus length Max. bus length with PCAN-LWL set High-speed CAN without PCAN-LWL (2 x PCAN-LWL + 5 m OWG stretch) 500 kbit/s 110 m 60 m 250 kbit/s 240 m 190 m 125 kbit/s 500 m 450 m 50 kbit/s 1.3 km...
Short circuit between CAN_H and CAN_L Please see the data sheet for the TJA1055 CAN transceiver by NXP for further details (www.nxp.com). Note: When operating the PCAN-LWL module in High-speed CAN mode, the red LED doesn't have a function. 4 Operation PCAN-LWL User Manual 3.0.0...
Appendix D Quick Reference Basic Settings on PCAN-LWL Circuit Board Choice of transceiver Jumper block JPB1 Comment High-speed CAN Default setting at delivery Low-speed CAN CAN Termination CAN mode Terminating resistor High-speed CAN 120 Ω between CAN_L and CAN_H OFF:...
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