The CANopen
Library provides all required services for a CANopen
compliant communication according to the communication
profile CiA 301 V 4.1. It facilitates easy
and fast development of master and slave devices and is able
to serve one or multiple CAN-Controller in one device.
The CANopen Library is available in different
expansion stages:
- Slave Small
- Slave
- Master/Slave
The functional range can be extended by additional modules (LSS, Redundancy, Flying Master, CANopen safety, ...) (see CANopen-Library Extension modules).
Access to the hardware is carried out via a defined driver interface, which is available for many CPU- and CAN controller with and without operating system (see CANopen Driver Package).
The CANopen Library is based on ground of the communication profile CiA 301 V4.1 of the CiA e.V. "CANopen Application Layer and Communication Profile" and EN50325-4 , respectively, and provides all services specified therein. It is completely written in ANSI-C and can be compiled with every ANSI-C compliant compiler.
Depending on the
required scope of functionality the CANopen Library
is available in different expansion stages. For development
of small sensors and actuators with limited CAN- open
services the Slave Small-Version is available. Its
limitations are composed of a restricted number of service
instances and no support for the CANopen services SYNC and
TIME.
With the Slave-Version of the CANopen
Library all services are provided for development of
full-featured slave devices.
The functionality of the
network management master as well as the comfortable node
monitoring functionality is provided by the
Master/Slave-Version, which of course contains the
services of the Slave-Version.
Additional services of other communication profiles (CiA 3xx) are provided by means of extension modules.
All versions of the CANopen Library are compatible to each other and are constantly tested with the
current CANopen Conformance Test for compliance with the standard.
|
Slave Small |
Slave | Master/ Slave |
Extra Package |
||||||
| SDO Server | 32 | 128 | 128 | ||||||
| SDO Client | 128 | 128 | |||||||
| SDO Segmented Transfer | √ | √ | |||||||
| SDO Block Transfer | √ | ||||||||
| Dyn. SDO Slave | √ | ||||||||
| SDO Manager | √ | ||||||||
| Program Download | √ | √ | |||||||
| PDO Consumer | 64 | 512 | 512 | ||||||
| PDO Producer | 64 | 512 | 512 | ||||||
| Dynamic Mapping | √ | √ | |||||||
| Bitwise Mapping | √ | √ | |||||||
| MPDO Source Mode | √ | ||||||||
| MPDO Dest. Mode | √ | ||||||||
| Nodeguarding Master | √ | ||||||||
| Nodeguarding Slave | √ | √ | |||||||
| Lifeguarding | √ | √ | |||||||
| Heartbeat Consumer | 128 | 128 | |||||||
| Heartbeat Producer | √ | √ | √ | ||||||
| EMCY Consumer | 128 | 128 | |||||||
| EMCY Producer | √ | √ | √ | ||||||
| Time Consumer | √ | √ | |||||||
| Time Producer | √ | ||||||||
| SYNC Consumer | √ | √ | |||||||
| SYNC Producer | √ | ||||||||
| NMT Slave | √ | √ | √ | ||||||
| NMT Master | √ | ||||||||
| NMT Flying Master | √ | ||||||||
| Bootup Procedure | √ | ||||||||
| Configuration Manager | √ | ||||||||
| LED Indicator | √ | √ | √ | ||||||
| Safety Communication | √ | ||||||||
| Redundancy Support | √ | ||||||||
| LSS Services | √ | ||||||||
| CiA 401 Framework | √ | ||||||||
| CiA 402 Framework | √ | ||||||||
| CiA 402 Application note | √ |
All hardware specific parts are decoupled from the CANopen protocol stack through a defined driver interface. This provides easy adaptation to different hardware platforms.
The user application communicates with the CANopen Library through function calls and call-back functions.
Configuration and scaling of the CANopen Library is done with the help of the CANopen Design Tool,
which is delivered as CANopen Design Tool Light version. With it the CANopen Library can be tailored to an optimum to the available resources of the application. Besides the creation of the object directory all settings for the hardware can be carried out with it.

The CANopen Library consists of a hardware independent and a hardware dependent part that communicate with message queues. The hardware dependent part consists of controlling software for the CAN controller and timer functions. A detailed description can be found in the CANopen Driver Package.
The application
communicates only with the hardware independent part of the
CANopen Library. That way it is possible to exchange
drivers without any influence on the functionality of the
application. The initialization of CANopen services is done
with function calls within the application. During the
execution of the application the CANopen Library
executes all necessary communication tasks autonomously and
informs the application about CANopen messages with the help
of callback functions.
Communication requests from
other devices as well as necessary periodical tasks and time
out monitoring is handled within the CANopen Library.
All requests are proved for correctness (access rights, data
types etc.). The application is notified after completion of
the communication and occurrence of failures, respectively,
through service oriented callback functions. In these
callback functions appropriate actions can be carried out
from the application.
The object directory is designed to contain references to the variables in the user application. Consequently it is possible to take over variables from an existing software without any changes in the object dictionary.
The high degree of scalability of the CANopen Library is of particular importance for devices with limited resources. On one hand, this is achieved by the modularity in individual service groups, like sdo.c, pdo.c, ...sync.c, and on the other hand, through the use of compiler directives in the respective modules.
Thus, the code size is proportional to the utilized CANopen services.
Furthermore, variants of the CANopen Library for the support of multiple CAN lines (max.255) are available. Therefore it is possible to serve several independent CAN networks on devices without an operating system or with an operating system. The usage of an operating system requires it to provide means of resource protection mechanisms. Each line holds its own object directory and can be used as master and slave, respectively, independent of the other lines. Owing to the separation of the protocol stack and the hardware drivers, the individual lines can also be operated with different CAN controllers.
Delivery of the CANopen Library comprises different example programs that describe the usage of the various CANopen services. All examples contain a complete implementation of a CANopen device including the object directory as well as application code. These are ready to be compiled and run.
Among the detailed documented source code there is the reference manual and an a printed user manual, numbering 200 pages, as documentation of the CANopen Library available.
The CANopen Library is constantly improved and adopted to customer requirements. In order to keep up with the latest version of the CANopen Library port provides its customers an update service.
For development, test and initial operation of CANopen devices port provides a comprehensive tool chain. The creation of the object directory is simplified with the CAN- open Design Tool (CANopen Design Tool Light version belongs to the scope of delivery).

The graphical CANopen Design Tool is available for the creation of the object directory, the electronic data sheet (EDS file) and for the documentation of the device in HTML or text format.
The CANopen Device Monitor can be utilized for commissioning, but also for the implementation and test phase. As a fully implemented CANopen master the CANopen Device Monitor with a graphical user interface assures access to all services in the network and also allows analysis of the bus traffic.
For the development of CAN application monitoring and analyzing the CAN bus traffic is essential. The service oriented display of CANopen messages of the CAN-REport allows easy and quick interpretation of CANopen messages.
Besides the
communication objects of the CiA 301 several
application objects in different device profiles are also
specified in CANopen. These definitions guarantee a defined
behavior of the corresponding device class and enable the
interchangeability of CANopen devices.
For these
different device profiles port provides
extension modules as an add-on to the CANopen
Library. These modules allow the customization of an
application based on the CANopen standards.
All
modules are available in ANSI-C source code and can be used
with all versions of the CANopen Library.
Please have a look at the information of the data sheet CAN- open-Library Extension modules.
The CANopen Library runs on targets with and without operating systems. It supports many of the available CAN controllers and many microcontrollers/processors. For detailed information see data sheet CANopen Driver Package.
For systems based on Windows™ the CANopen Library is also available a Dynamic Link Library (DLL). This DLL is available for special hardware boards and contains all services of the Master/Slave standard edition of the library. It can be used to create master or slave applications.
Furthermore CANopen-Starter Kits and a free CANopen Evaluation software on CD are available on request.
- CANopen library with separate driver interface
- CPU/CAN driver
- numerous, immediately compilable examples
- CANopen Design Tool Light
- detailed user manual
- reference manual containing descriptions of all functions including parameters and return values
Support (up to 30 days after purchase)
- support by telephone free of charge
- support by E-Mail free of charge
- update service free of charge
With a maintenance contract will help ensure the continued support mentioned above. Please ask the current conditions in our service area. (service@port.de)
CANopen Design Tool Light
- generates an object dictionary and an initialization function in C-code, an Electronic Data Sheet and the documentation are produced automatically
For the CANopen Library a one-off license fee in the form of a product / project or site license is collected. Further license fees do not arise from the deployment of the software within the same company (no runtime licenses). It is not allowed to hand over the software and the implementation, respectively, towards a third party.
If you need more Information, please click here.
Maintenance
Agreement
All changes of current standards as well as
extensions through new developed standards are constantly
incorporated into the CANopen Library. In order to
take profit of the changes port offers all its
customers a maintenance agreement with the following
conditions:
- updates free of charge for the contracted period
- free of charge support for the CANopen Library and topics of CANopen
Support for initial
operation
In order to provide a quick and effective
access to the development of CANopen devices we recommend to
do the initial operation of the CANopen device together on
the target platform. Customer experiences of his/her
hardware and the used compiler and the experience of our
engineers with CANopen and the CANopen Library can
complement each other. This leads to reduced development
times and a CANopen conform device.
Conformance Test
In preparation of the charged Conformance test of the
CiA we provide you our service, knowledge and equipment.
With the preparation and execution of preliminary tests
possible problems can be detected and removed.
System analysis,
consulting and support
Take profit of our Know How
during planning and development of your CANopen devices and
networks. An ideal design requires knowledge about the used
protocols and the system environment. Our competent
engineers create together with you a cost-efficient solution
that fits your needs to an optimum.
Software development services for CAN, CANopen and DeviceNet
Training
To
simplify the first steps with a new technology
port provides one-day and several-days
trainings for the topics of CANopen and its services as well
as for the CAN- open Library and its tools. These
trainings can be given at port or at your
companies rooms and are exclusively carried out for your
workers.
CANopen User Manual
You want to get to know about the advantages of our
CANopen Library? Then our user manual is the best
starting point to get an overview about the functionality
and deployment possibilities of the CANopen Library.

Starter Kit
For a quick and uncomplicated start with CANopen the CANopen Starter Kit provides everything you need. It comes with a pre-compiled CANopen Library for your target hardware and several simple examples that provide a first insight and that ease the start with CANopen. As hardware interfaces several possibilities are avaliable, like PC cards, parallel port dongles, PCMCIA cards and USB interfaces. With these setting up a CAN network is as easy as a children’s game.

Further informations can be found at CANopen LINUX™ Starter Kit.
| 0564/01 | CANopen-SRCLIB Slave Small |
| Single Line | |
| 0564/12 | CANopen-SRCLIB Slave |
| Single Line | |
| 0564/10 | CANopen-SRCLIB Master/Slave |
| Single Line | |
| 0564/15 | CANopen-SRCLIB Slave |
| Multi Line | |
| 0564/13 | CANopen-SRCLIB Master/Slave |
| Multi Line | |
| 0910/xx | CANopen-DLL Master/Slave |
| 0564/90 | CANopen-SRCLIB User Manual |
| (Paperback) | |
| 0571/10 | CANopen-SRCLIB |
| Software Maintenance Agreement | |
| 0564/39 | CANopen Evaluation-Software |
| 0569/10 | CANopen Training Course |
| 0570/10 | CANopen Integration Support |
| 0572/01 | CANopen Starter Kit for LINUX |
Datasheet as PDF