Overview
Standard-housing RS485 / Modbus-RTU absolute encoders (SAS-M58) provide precise absolute position feedback for industrial automation systems. Using the RS485 interface with Modbus-RTU protocol, these encoders enable reliable, long-distance data communication suitable for machinery control, servo drives, conveyors, and material handling systems.
The 58mm standard housing ensures a compact, robust mechanical footprint, suitable for both new installations and retrofit applications.
Key Functional Features
- RS485 Interface with Modbus-RTU protocol for deterministic absolute position transmission
- Single-turn resolution: up to 21 bits
- Multi-turn resolution: up to 14 bits
- Optional incremental output for hybrid system compatibility
- Stable operation in electrically noisy industrial environments
- Environmental protection: IP65 / IP67
- Shock and vibration resistance for industrial usage
These features allow accurate and reliable absolute position monitoring across a wide range of automation applications.
Mechanical Design and Mounting
SAS-M58 encoders feature standard housing supporting:
- Clamp flange – flexible and repeatable mounting
- Blind hollow shaft flange – direct integration onto existing shafts
The 58mm housing provides mechanical stability while allowing straightforward integration into different machine layouts.
Shaft Interface Options
- Solid Shaft – suitable when shaft alignment is mechanically controlled
- Blind Hollow Shaft – ideal for retrofits or space-constrained designs
Correct selection of shaft interface ensures long-term reliability and mechanical stability.
Environmental Suitability
- Intended for indoor industrial environments
- Operates in moderate temperature ranges
- Controlled exposure to dust and moisture
Proper cable management and grounding are recommended for stable RS485 communication.
Typical Applications
- Servo drive axes and rotary positioning systems
- Conveyor and material handling equipment
- Packaging and assembly machinery
- Retrofit replacements of legacy position feedback devices
The standard housing allows adaptation to a variety of mechanical layouts without extensive redesign.
Engineering Selection Summary
The SAS-M58 standard-housing RS485 / Modbus-RTU absolute encoder series combines high-resolution deterministic feedback with robust standard mechanical integration. Proper consideration of flange type, shaft interface, and environmental conditions ensures reliable long-term operation.
Technical Reference
For detailed specifications and mechanical drawings, refer to the corresponding product documentation during final selection.
Reference：Standard-Housing RS485 / Modbus-RTU Absolute Encoder SAS-M58
