
1 Technical details and characteristics
R60712.0002 EN - 6
1. Technical details and characteristics
1.1 CANopen Multiturn /Singleturn Encoder Series 58X8
The CANopen encoders of Series 7068/88 support the latest CANopen communication profile
according DS 301 V4.02. In addition, device-specific profiles such as the encoder profile DS 406 V3.1
are adapted. The following operating modes can be selected: Polled Mode, Cyclic Mode, Sync Mode
and a High Resolution Sync Protocol.
Moreover, scale factors, preset values, limit switch values and many other additional parameters can
be programmed via the CAN-Bus. At Power ON all parameters are loaded from an EEPROM, which
had previously been saved in the non-volatile memory to protect them in case of power failure. The
following output values may be freely combined as PDO (PDO Mapping): position, speed,
acceleration as well as the status of the four limit switches.
The encoders are available with a cable connection, for which changes to the device address and
baud rate are software controlled. The models have an integrated T-coupler to allow an easy
installation .
1.2 The CANopen Communication Profile DS 301 V4.2.0
CANopen represents a unified user interface and thus allows for a simplified system structure with a
wide variety of devices.CANopen is optimized for the fast exchange of data in real-time systems and
possesses a number of different device profile that have been standardized. The CAN in Automation
(CiA) manufacturers and users group is responsible for creating and standardization
of the relevant profiles.
CANopen offers
• user-friendly access to all device parameters
• auto-configuration of the network and of the devices
• device synchronization within the network
• cyclic and event-driven process data exchange
• simultaneous read and write of data
CANopen uses four communication objects (COB) with different properties
• Process Data Objects (PDO) for real-time data,
• Service Data Objects (SDO) for transmitting parameters and programs,
• Network Management (NMT, Life-Guarding, Heartbeat)
• Predefined Objects (for Synchronisation, Time-Stamp, Emergency)
All device parameters are filed in an Object Dictionary. This Object Dictionary contains the
description, data type and structure of the parameters, as well as the address (Index).
The dictionary is divided into a communications profile section, a section covering the device profile
as well as a section specific to the manufacturer.