RS485 / Modbus-RTU Absolute Encoder SAS/M58

Core functional components are 100% domestically sourced, ensuring supply chain stability and consistent product reliability.High-precision magnetic sensing technology, available in single-turn and multi-turn absolute encoder versions.Supports RS485 free communication protocol or Modbus-RTU interface for flexible data exchange and system integration.Single-turn resolution up to 21 bits; multi-turn resolution up to 14 bits for accurate position measurement.High resistance to shock and vibration, suitable for demanding industrial operating conditions.Integrated reverse-polarity and short-circuit protection to reduce the impact of wiring and installation errors. Product Specifications (RS485 / Modbus-RTU Version) Parameter SAS/M58A (Solid Shaft) SAS/M58C (Blind Hollow Shaft) Mechanical Type Ø 58 mm Solid Shaft Ø 58 mm Blind Hollow Shaft Shaft Diameter Ø 6, 8, 10, 12, 15 mm (custom sizes available) Housing Material Aluminum (optional stainless steel housing) Communication Interface Free protocol; Modbus-RTU Baud Rate (bps) 4800; 9600; 19200; 38400; 57600; 115200 Address Range 0–99 Output Circuit RS485 compliant, opto-isolated Operating Mode Single-turn or multi-turn Supply Voltage Standard 10 ~ 30 VDC Single-turn Resolution Standard: 12-bit (4096), 13-bit (8192), 16-bit (65536), 18-bit (262144), max. 21-bit Number of Turns 1 turn (single-turn); multi-turn standard: 12-bit (4096 turns); multi-turn optional: up to 14-bit (16384 turns) No-load Current ≤ 30 mA Data Update Time Single-turn: ＜ 15 μs; multi-turn: ＜ 1 ms Parameter Configuration Counts per turn adjustable; total multi-turn range adjustable; direction configurable; preset position configurable; external zero configurable; baud rate, communication address, operating mode configurable Data Format Hexadecimal Protection Functions Reverse polarity protection: Yes; short-circuit protection: Yes; lightning & ESD protection: Yes Mechanical Performance Max. speed: 6000 r/min Shaft load: radial 200 N, axial 100 N Environmental Rating Protection class: IP65 or IP68; starting torque: ＜ 0.01 Nm Temperature Range Operating: −30 °C … +85 °C (−40 °C optional); storage: −40 °C … +100 °C Mechanical Strength Shock resistance: 1000 m/s², 6 ms (100...