Rieter RMC186C RMC RIO-1 PLC Controller
This Rieter PLC system comprises the RMC 24/5V 10 power supply unit, the RMC186C main controller, and the RMC RIO‑1 remote I/O module. It is specifically designed for Rieter spinning machinery (e.g., ring spinning frames, draw frames, and rotor spinning machines). The system provides real‑time control of drafting, winding, and yarn quality monitoring in textile mills.
RMC 24/5V 10 Power Supply
The power supply module converts 230V AC (50/60 Hz) to 24V DC (10A) and 5V DC (5A) for the controller and I/O. It includes overcurrent protection (foldback), a green LED (DC OK), and a red LED (overload). Dimensions: 150 mm x 100 mm x 70 mm. Weight: 1.2 kg. Operating temperature: 0 to 50°C.
RMC186C Main Controller
The RMC186C is a rugged PLC based on a 16‑bit microcontroller (Infineon C167). Program memory: 128 KB (flash). Data memory: 64 KB SRAM (battery backed, 3V lithium). It features 24 digital inputs (24V DC), 16 transistor outputs (24V DC, 0.5A), and 8 analog inputs (0–10V, 12‑bit). Communication ports: RS‑232 (for programming), RS‑485 (Modbus RTU), and CAN bus for the RIO‑1.
RMC RIO‑1 Remote I/O
The RMC RIO‑1 expands the system with 16 digital inputs and 16 relay outputs (2A, 250V AC). It connects to the RMC186C via a dedicated CAN bus (maximum distance 200 m, up to 8 RIO modules). The RIO‑1 has its own 24V DC supply (drawn from the RMC 24/5V 10 or local). LEDs indicate I/O status and communication health.
Textile‑Specific Functions
Draft ratio calculation and closed‑loop control (encoder feedback).
Spindle speed monitoring (up to 20,000 rpm).
Yarn break detection (fast input response < 1 ms).
Production counters (length, weight, efficiency).
Programming and Interface
The controller is programmed with Rieter software (RMC Studio) using ladder diagram and function blocks tailored for textile machinery. A 4‑line LCD display on the RMC186C shows machine status and alarms. Parameters can be entered via a keypad (integrated).
Environmental and Protection
The system is designed for cotton mill environments with protection class IP54 (dust‑protected). Operating temperature: 0 to 55°C, humidity up to 95% non-condensing. The boards are conformally coated to resist fly dust.
Typical Applications
Rieter G33 ring spinning frame, R40 rotor spinning machine, and RSB‑D 50 draw frame. The PLC controls servomotors for drafting, winding tension, and doffing sequences.
Maintenance and Spare Parts
Battery for RMC186C: type CR2032 (replace every 3 years). The power supply fan (if present) has a lifetime of 40,000 hours. Fuses: 3.15A (primary) and 6.3A (secondary).
Ordering Information
Rieter part numbers: RMC 24/5V 10 (power supply), RMC186C (controller), RMC RIO‑1 (I/O). Manual: Rieter Spinning Machine PLC Manual (Order No. 156‑004).
