Description of CANopen-Interface
HYDAC ELECTRONIC GMBH
07.10.2010
Mat. No. 669824
Page 40 of 63
6 Commissioning
6.1 CAN – interface
The CAN-Bus-Interface is defined by the international norm ISO/DIS 11898 and
specifies the two lowest layers of the ISO/DIS CAN Reference Model.
The conversion of the measuring system information to the CAN message format
(CAN 2.0A) is done by a CAN-controller. The function of the CAN-controller is
controlled by a watchdog.
The CANopen Communication Profile (CIA standard DS 301) is a subset of CAN
Application Layer (CAL) and describes, how the services are used by devices. The
CANopen Profile allows the definition of device profiles for decentralized I/O.
The measuring system with CANopen-protocol support the Device Profile for Encoder
(CIA Draft Standard Proposal 406, Version 3.2).
The measuring systems partially
support the extended functions in Class C2 .
The communication functionality and objects, which are used in the encoder profile,
are described in a EDS-File (Electronic Data Sheet).
When using a CANopen Configuration Tool (e.g.: CANSETTER), the user can read
the objects of the measuring system (SDOs) and program the functionality.
6.2 EDS file
The EDS (electronic datasheet) contains all information on the measuring system-
specific parameters and the measuring system’s operating modes. The EDS file is
integrated using the CANopen network configuration tool to correctly configure or
operate the measuring system.
The EDS file has the file name
–
"HLT1100-V01-R04.EDS"
The file is on the Software/Support CD: Mat.-No. 3505546
The EDS- file (file name
HLT1100-VXX-RYY.EDS
XX = Version, YY = Release)
description of CANopen-interface included can be downloaded on HYDAC homepage
under http://www.hydac.com/de-en/support/download-software-on-
demand/software/software-download/electronic.html.