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USB-CAN Plus ISO (427)

Main Features

  • Connects CAN-Bus via USB
  • Supports CAN 2.0A / 2.0B, up to 1 Mbit/s
  • CANopen supported by CANFestival
  • SAE J1939 protocol supported by Vscom’s J1939 API
  • Drivers for Windows, Linux and Mac OS X
  • LEDs for CAN and Error
  • 16kV ESD surge protection
  • 2.5kV electrical isolation (ISO version only)
  • DIN-Rail and wall mountable
  • Small metal case

Vscom USB-CAN Plus, a CAN Bus adapter for USB port


(Vscom USB-CAN, Vscom USB-CAN ISO)

Quick Link: | Main Features | More Pictures | Overview | USB Interface | CAN Bus | Software | Power Requirement | Housing and Mounting | Environmental Data | Standards | MTBF (Mean Time Between Failures) | Warranty | Ordering Information | Options | Packaging | Download |


  More Pictures

Vscom USB-CAN Plus, a CAN Bus adapter for USB port  
Click on the thumbnails to enlarge them …

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USB-CAN Plus is an USB to CAN Bus 2.0A/B adapter. Higher layer protocols, such as CANopen, can be assembled using the available development tools for complex automation control applications. Its low power consumption (0.5W typical), its extended temperature range (−20°C - +70°C), and the solid MTBF (23 Years at 45°C) make it an ideal system for industrial automation. A small footprint metal case, available with a DIN-Rail mounting option, makes the device flexible and convenient to use.

Usage Options

USB-CAN Plus provides various software tools to interface each level of user applications:

  • The ASCII conversion protocol is handy for developing and testing any CAN-BUS configuration. Users simply connect using the virtual COM port, setting up a straightforward way to talk to the CAN controller. The device can also be used to manually transmit and receive CAN frames.
  • Applications programmed by users should use the VScan API library (DLL), which handles the communication and ASCII conversion for the CAN frames in a transparent manner. In their applications, programmers have to handle only the CAN frames and status information, without taking care of the ASCII conversion. The VScan API is supported in C/C++, C#, VB.NET, Delphi and LabVIEW. Under Linux SocketCAN can be used as alternative to the VScan API. All VScom CAN devices support the standard Serial Line CAN (slcan) driver.
  • The USB-CAN Plus series also supports CANFestival, an Open Source CANopen Framework. CANopen is a CAN-based higher layer protocol that is used in various application areas to unburden the developer from dealing with CAN-specific details. CANopen provides standardised communication objects for real-time data, configuration data, as well as network management data.
  • The SAE J1939 protocol, resting upon the CAN hardware layer, is commonly used in the commercial vehicle area. A lot of other modern protocols are based on it, like NME200, ISOBUS, MilCAN or FMS. Vscom’s J1939 API also includes support for the so called Transport Protocol, which will bypass the limit of 8 data bytes per message. It's available on J1939-enabled devices. Supports Windows, Linux, .NET   read more …

ESD protection and electrical Isolation

For usage in hazardous industrial environments, the CAN-Bus interface and USB port are ±16kV (air) and ±8kV (contact) ESD surge protected. Because noisy CAN-Bus connections with unbalanced ground loops could seriously damage the equipment, an ISO version is available and offers 2.5kV electrical isolation.

  USB Interface


USB 2.0 Full Speed, USB 1.1 compliant


USB type B


Virtual COMs, 3Mbit/s max

Operating Systems

  • Windows 2000 up to Windows 10
  • Windows Server 2000 up to 2012
  • Linux kernel 3.0+
  • Mac OS X support available


The driver is already installed (Linux), or installs by automatic Download after Device connection (Windows).

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  CAN Bus

No. of Ports/Type

1 × CAN Bus


DB9 male


  • 16kV ESD surge protection
  • 2.5kV Electrical isolation on ISO version




CAN 2.0A / 2.0B 1Mbit/s


SJA1000 (NXP)


SN65HVD233 (Texas Instruments)


CAN-Data, CAN-Error

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  • Unified API for control all VScom CAN-Adapters.
  • Supported OS: Windows, CE, Linux (x86, x86-64, ARM) targets.
  • Supported Dev.Env: C/C++, C#, VB.NET, Delphi and LabVIEW.

Linux OS

Supports SocketCAN (slcan driver) since kernel 3.4+
Also see this FAQ


Open source CANfestival framework fully implements CANopen functionality.

SAE J1939

Automotive protocol suite supported by Vscom’s J1939 API.
Supports NME200, ISOBUS, MilCAN and FMS protocols for Windows, Linux and .NET

Monitoring Tools

Bosch BUSMASTER v3.2.0 and above

Data Coding

ASCII format

CAN Modes

Standard Mode
Normal operation on CAN bus
Listen Mode
Passive receive of CAN Frames, neither ACK bits nor Error Frames are sent
Self Reception (Echo Mode)
For testing: Transmitted Frames are also received by the adapter

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  Power Requirement

Input Voltage

5V (USB)

Power Consumption

max 80mA @ 5V, 400mW


USB Type B, bus powered, no external supply

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  Housing and Mounting


0.8mm sheet metal


w/o box 150g; w/h box 200g


50×72×22 mm³ (W×L×H) Case
72×72×22 mm³ (W×L×H) with mounting wings


85×122×55 mm³


  • DIN-Rail (optional)
  • Wall mount

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  Environmental Data

Operating Temp

−25°C - 75°C

Storage Temp

−30°C – 85°C

Ambient Humidity

5-95% non condensing

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  • EN 55022 Class B
  • 47 CFR FCC Part 15 Subpart B

EMS (EN 55024)

  • EN 61000-4-3: Radiated RFI
  • EN 61000-4-4: Electrical Fast Transient
  • EN 61000-4-5: Surge
  • EN 61000-4-6: Induced RFI
  • EN 61000-4-8: Power Frequency Magnetic Field
  • EN 61000-4-11: Power supply dips


IEC 61000-4-2 4kV contact 8kV air for

  • CAN Bus Port
  • USB

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  MTBF (Mean Time Between Failures)


23 Years at 45°C


Telcordia (Bellcore) Standard; RelCalc. 5.0 BELL-7

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Warranty Period

2 years

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  Ordering Information





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DK 35A DIN-Rail mounting kit


Purchase-time option to enable protocol J1939


DB9F-to-TB/10 for CAN bus free wiring option

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Packing list

  • High-Speed USB cable
  • Rubber Feet

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 (Version 2.1 (August 8 2019))
 (v2.12.36.4 July 2021)
 (v2.08.30 July 2013)
 (May 2016)
 (VSCAN standard API 1.10.2 for VScom CAN adapters)
 (VSCAN standard API 1.10.2 for VScom CAN adapters)
 (VSCAN standard API 1.8.0 for VScom CAN adapters)
 (Edition: April 2023)
 (Edition: May 2022)
 (VSCAN API for J1939, Feb. 14 2018)
 (Edition: October 2020)
 (Bosch BUSMASTER v3.2.2 VScom v1.0, April 2018)
 (regmodify, VS_CAN_Search, VS_CAN_TEST_SIMPLE, vscandump)
 (LabView, C#, VB.Net, Delphi, Python and more)
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* Specifications are subject to change without notice.
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