Is CANopen the same as CAN bus?
CAN is the physical and data-link technology. CANopen adds a standardized application layer, device profiles and object dictionary behavior.
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Encoder interface guide
CANopen Absolute Encoders
CANopen encoder selection for industrial machinery, mobile equipment and automation networks, including resolution, objects and mechanical fit.
DIRECT ANSWER
A CANopen absolute encoder provides position data through a standardized CAN-based device network. It is suited to machines that already use CANopen and need configurable node addressing, position objects and diagnostic behavior. Selection still depends on resolution, single-turn or multi-turn range, mechanical fit, supply and environmental protection.
✓ CANopen network integration✓ Single-turn or multi-turn feedback✓ Configurable node and position settings✓ Rotary and draw-wire measurement options
SELECTION TABLE
CANopen integration checklist
Use this table as an initial engineering checklist. Final model configuration must be confirmed against the controller, mechanical drawing and operating environment.
Selection itemWhat to verify
NetworkNode ID, bit rate, termination and controller compatibility
DataPosition object, scaling, preset, direction and update behavior
MeasurementSingle-turn resolution and required multi-turn range
InstallationShaft, flange, connector, cable and protection rating
ENGINEERING PROCESS
How to select the right configuration
- 01
Confirm that the controller uses CANopen rather than raw CAN.
- 02
Define position resolution and multi-turn requirements.
- 03
Match communication objects and network settings.
- 04
Confirm mechanical drawing and connector pinout.
RELEVANT PRODUCTS
Technical product pages
CANopen IP54 Absolute Encoder
Compact IP54 absolute angular or multi-turn feedback for CANopen control networks.
View parameters and drawings →Mechanical Multi-turn IP54 Absolute Encoder
Battery-free IP54 geared turn counting retains absolute position through power loss.
View parameters and drawings →
CANopen Draw-wire Displacement Sensor
Absolute displacement feedback for CANopen machinery networks across the verified travel options.
View parameters and drawings →COMMON QUESTIONS
Frequently asked questions
When should I choose CANopen instead of RS485 Modbus?
Choose the interface already supported by the machine architecture. CANopen is common in distributed motion and mobile equipment, while Modbus RTU is often simpler for PLC register communication.
Can a draw-wire sensor use CANopen?
Yes. A draw-wire mechanism can be paired with an absolute CANopen encoder to report linear travel after the mechanical range and scaling are confirmed.
RELATED GUIDANCE
Continue your selection
EDITORIAL SCOPE
How this guidance is prepared
FOSAI consolidates available supplier technical material into a buyer-oriented selection guide. Parameters, certifications and compatibility are not generalized across every model; the final suffix, controlled drawing and project conditions must be confirmed before ordering.
MODEL SELECTION SUPPORT
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