Peak PCAN-Optoadapter User manual

PCAN-Optoadapter
User Manual
User Manual 4.1.0 © 2023 PEAK-System Technik GmbH

Relevant product
Product name Part number
PCAN-Optoadapter IPEH-002038
Imprint
PCAN® is a registered trademark of PEAK-System Technik GmbH.CANopen® and CiA® are registered
community trade marks of CAN in Automatione.V.
All other product names mentioned in this document may be the trademarks or registered trademarks of
their respective companies. They are not explicitly marked by “™” or “®”.
© 2023 PEAK-System Technik GmbH
Duplication (copying, printing, or other forms) and the electronic distribution of this document is only
allowed with explicit permission of PEAK-System Technik GmbH. PEAK-System Technik GmbH reserves the
right to change technical data without prior announcement. The general business conditions and the
regulations of the license agreement apply. All rights are reserved.
PEAK-System Technik GmbH
Otto-Roehm-Strasse 69
64293 Darmstadt
Germany
Phone: [phone]
Fax: [phone]
www.peak-system.com
[email protected]
Document version 4.1.0 (2023-09-07)
Relevant product PCAN-Optoadapter
User Manual 4.1.0 © 2023 PEAK-System Technik GmbH
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Contents
Imprint 2
Relevant product 2
Contents 3
1 Introduction 4
1.1 Properties at a Glance 4
1.2 System Requirements 5
1.3 Scope of Supply 5
2 Connectors 6
2.1 Connection Primary Side 6
2.2 Connection Secondary Side 7
3 Operation 8
3.1 Operation 8
3.2 Signal Delay 9
3.3 Status LED 9
4 Technical Specification 10
Appendix A CE Certificate 12
Appendix B UKCA Certificate 13
Appendix C Dimension Drawing 14
Appendix D Disposal 15
Contents PCAN-Optoadapter
User Manual 4.1.0 © 2023 PEAK-System Technik GmbH
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1 Introduction
The PCAN-Optoadapter is a universal plug-on adapter to allow galvanic isolation of
High-speed CAN bus systems.
Its integrated logic means that decoupling can be installed at any point in the
CANnetwork.
The PCAN-Optoadapter can be used in CAN FD buses with data bit rates up to
2Mbit/s and nominal bit rates up to 1 Mbit/s.
1.1 Properties at a Glance
Plug-on adapter for decoupling a CAN bus for PEAK CAN interfaces
Galvanic isolation by DC/DC converters up to 500 V
Bit rates from 5 kbit/s up to 1 Mbit/s
High-speed CAN transceiver NXP PCA82C251
Suitable for the use in CAN FD buses with data bit rates up to 2 Mbit/s and
nominal bit rates up to 1 Mbit/s
CAN bus connection via D-Sub, 9-pin (in accordance with CiA® 106)
Status LED for supply voltage indication
120-Ohm bus termination at the female D-Sub connector
Power supply (5 V) through pin 1 of the High-speed CAN connection. Nearly all
CAN interfaces by PEAK-System can provide the required supply
Extended operating temperature range from -40 to +85 °C (-40 to +185 °F)
1 Introduction PCAN-Optoadapter
User Manual 4.1.0 © 2023 PEAK-System Technik GmbH
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1.2 System Requirements
The power supply is done via pin 1 of the 9-pin female D-Sub connector (primary
side). Therefore the attached CAN interface must provide 5 Volts.
Since the PCAN-Optoadapter already contains a CAN bus termination on the
primary side, the connected CAN adapter doesn’t need to be terminated
separately on this side.
1.3 Scope of Supply
PCAN-Optoadapter in plastic casing
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Manual in PDF format
1 Introduction PCAN-Optoadapter
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2 Connectors
Secondary
side
(D-Sub male)
Primary side
(D-Sub
female)
Top view PCAN-Optoadapter
2.1 Connection Primary Side
The PCAN-Optoadapter is connected to the CAN interface on the primary side.
Pin assignment at the primary side (D-Sub female)
The lines for the differential CAN signal CAN_H and CAN_L are terminated on the
adapter with a 120-Ohms resistor (fixed). An additional termination at the
CANinterface is not needed.
2 Connectors PCAN-Optoadapter
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2.2 Connection Secondary Side
A High-speed CAN bus (ISO 11898-2) is connected to the 9-pin D-Sub connector. The
pin assignment for CAN corresponds to the specification CiA® 106.
Pin assignment at the secondary side (D-Sub male)
2 Connectors PCAN-Optoadapter
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3 Operation
3.1 Operation
A configuration of the PCAN-Optoadapter is not needed. You can use it instantly.
For general supply the adapter uses a direct voltage of +5 V. This must be applied to
pin 1 of the CAN connector. The CAN interfaces of the PCAN series are able to provide
5 Volts on pin 1.
When the 5-Volt supply is active, the LED on the PCAN-Optoadapter is green.
Risk of short circuit! When you connect the PCAN-Optoadapter to or
remove it from a CAN interface, latter must be turned off (without
power supply). Otherwise the PCAN-Optoadapter or other electronic
components may be damaged.
3 Operation PCAN-Optoadapter
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3.2 Signal Delay
The PCAN-Optoadapter has a transit time delay of approx. 80 ns. This corresponds
to a cable length of 16 m. Therefore, you should consider the dependence of the
maximum length of a CAN bus on the bit rate at the installation of the
PCAN-Optoadapter. The following table shows the maximum possible CAN bus length
at different bit rates:
Bit rate Bus length Bus length with Optoadapter
1 Mbit/s 40 m 24 m
500 kbit/s 110 m 94 m
250 kbit/s 240 m 224 m
125 kbit/s 500 m 484 m
50 kbit/s 1.3 km
For small bit rates,
the delay of the adapter
can be neglected
20 kbit/s 3.3 km
10 kbit/s 6.6 km
5 kbit/s 13.0 km
The listed values have been calculated on the basis of an idealized system and can
differ from reality.
3.3 Status LED
The LED on the top of the PCAN-Optoadapter indicates, whether it is correctly
supplied. In this case, the LED is continuously green.
3 Operation PCAN-Optoadapter
User Manual 4.1.0 © 2023 PEAK-System Technik GmbH
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4 Technical Specification
Connectors
CAN D-Sub (m),9 pins,
Pin assignment according to specification CiA® 106
CAN
Specification ISO 11898-2, High-speed CAN 2.0A (standard format),
2.0B (extended format) and CAN FD (Flexible Data Rate)
Bit rates 5 kbit/s to 1 Mbit/s (with CANFD up to 2 Mbit/s)
Transceiver NXP PCA82C251
Galvanic isolation up to 500 V
Termination 120 Ohm on the primary side
none on the secondary side
Signal delay approx. 80 ns
Power supply
Supply voltage +5 V = via pin 1 of D-Sub female (GND: pin 3; pin 6)
Power consumption max. 100 mA
Measures
Size 63 x 34 x 17 mm (W x H x D)
see also Dimension Drawing Appendix C
Weight 25 g
Environment
Operating temperature −40 to +85 °C (-40 to +185 °F)
Temperature for storage and transport −40 to +100 °C (-40 to +212 °F)
Relative humidity 15 to 90 %, not condensing
4 Technical Specification PCAN-Optoadapter
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