Can repeater for decoupling bus segments (21 pages)
Summary of Contents for Peak PCAN-Repeater
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PCAN-Repeater 2-Channel CAN Repeater with galvanic isolation User Manual V1.0.3...
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PCAN-Repeater – User Manual Products taken into account Product Name Model Part Number PCAN-Repeater Industry IPEH-004038 All product names mentioned in this document may be the trademarks or registered trademarks of their respective companies. They are not explicitly marked by „™“and „®“.
PCAN-Repeater – User Manual Contents Introduction Properties at a Glance Prerequisites for Operation Scope of Supply Connectors CAN1 / CAN2 Power Supply Operation Operation with Bus Load and Error Display 3.1.1 Signal Delay 3.1.2 Busload- and Error Display Status LEDs...
PCAN-Repeater – User Manual Introduction With the PCAN-Repeater a galvanic isolated connection can be established between two High-speed CAN busses (ISO 11898-2) with the same bit rates. The maximum isolation voltage is 5 kV. The CAN traffic is transmitted 1:1 to the other bus. The device is designed for use in industrial plants.
PCAN-Repeater – User Manual Scope of Supply PCAN-Repeater in a top hat rail casing 3 mating connectors for power supply and CAN connectors Manual in PDF format...
PCAN-Repeater – User Manual Connectors CAN1 / CAN2 The CAN connectors are located on the upper side of the casing. Meaning CAN-High CAN-Low CAN-GND CAN-Shield Figure 1: Pin assignment CAN Figure 2: Mating connector CAN Capacitive connection (5 kV) to supply shield (top hat rail potential)
PCAN-Repeater – User Manual Power Supply The connection for the power supply is located on the lower side of the casing. Meaning not connected Vbat (8 - 30 V DC) Shield (top hat rail potential) Figure 3: Pin assignment Power...
The PCAN-Repeater now forwards the CAN messages 1 to 1. 3.1.1 Signal Delay The PCAN-Repeater has a transit time delay of 115 ns. This corresponds to a cable length of 23 m. Therefore, you should consider the dependence of the maximum length of a CAN bus on the bit rate at the installation of the repeater.
5 kbit/s 13,0 km The listed values have been calculated on the basis of an idealized system and can differ from reality Note: The PCAN-Repeater cannot be used to extend CAN busses. 3.1.2 Busload- and Error Display For the bus load and error display the use of standard bit rates is provided.
PCAN-Repeater – User Manual Status LEDs The PCAN-Repeater has three status LEDs that represent the following conditions: Upper LED Status Meaning Error flashing Communication error (error frames) Middle LED Status Meaning Traffic Orange Bit rate detection is performed or no standard bit rate is...
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Important note: Before opening the adapter unplug the power supply. In order to access the board open the casing of the PCAN-Repeater, by pushing the latch at the top behind the CAN connectors and at the bottom behind the power connector slightly in, e.g. with a flat tip screwdriver.
CAN channel 2, but no data (and also no Acknowledge) is transferred from CAN channel 1 to CAN channel 2. At delivery of the PCAN-Repeater the listen-only mode is switched off. Note: The listen-only mode should be enabled only for one CAN channel.
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Important note: Before opening the adapter unplug the power supply. In order to access the board open the casing of the PCAN-Repeater, by pushing the latch at the top behind the CAN connectors and at the bottom behind the power connector slightly in, e.g. with a flat tip screwdriver.
Application Examples 3.5.1 Decoupling of two Bus Segments The PCAN-Repeater is used to establish a galvanic isolation between two bus segments. If a connected CAN bus is completely terminated, deactivate the termination on the repeater. If a CAN bus is not completely terminated, activate the internal termination for the appropriate channel.
3.5.2 Implementation of a Stub Line The PCAN-Repeater is used to establish a physical coupling of two or more segments of a CAN network. With a tap on a CAN bus a long stub line can be implemented with several participants.
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PCAN-Repeater – User Manual Figure 8: Implementation of a stub line CAN 1 Status CAN 2 Status Termination On, at a not Termination Off, a termination terminated CAN bus may only be done on the cable ends of Off, at a completely...
PCAN-Repeater – User Manual 3.5.3 Use as a Passive Observer A CAN bus can be terminated and observed by the PCAN-Repeater. Use the CAN channel 1. Note that the termination of the open CAN channel (CAN 2) is activated. Figure 9: Use as a passive Observer...
PCAN-Repeater – User Manual Technical Specifications PCAN-Repeater Connectors 2 x Phoenix connector 4-pin Power Phoenix connector 4-pin Specification ISO 11898-2 High-speed CAN (up to 1 Mbit/s) 2.0A (standard format) and 2.0B (extended format) Transceiver NXP PCA82C251 Galvanic isolation Up to 5 kV, between the CAN channels and...
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PCAN-Repeater – User Manual Environment Operating temperature -40 - 85 °C (-40 - 185 °F) Temperature for storage and -40 - 100 °C (-40 - 212 °F) transport Relative humidity 15% - 90%, not condensing EN 61326-1:2006-10 EC directive 2004/108/EG Extended interference resistance: IEC61000-4-6 (10 V eff.)
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