Mitsubishi FX0N-24MR-ES Compact PLC Controller for Small Machine Control
The Mitsubishi FX0N-24MR-ES is a compact programmable logic controller from the FX0N series, designed for small-scale machine control and automation applications. This PLC combines 14 digital inputs and 10 relay outputs in a compact form factor, providing cost-effective control for applications requiring moderate I/O capacity. The FX0N-24MR-ES operates on standard 100-240VAC power, making it compatible with facility power in most industrial regions. The controller is suitable for packaging machinery, small conveyor systems, assembly equipment, and standalone machine control where space and cost are important considerations.
Key Specifications
Model: FX0N-24MR-ES
Product Series: Mitsubishi FX0N Series PLC
Total I/O Points: 24 points
Input Points: 14 digital inputs
Output Points: 10 relay outputs
Power Supply: 100-240VAC, 50/60Hz
Output Voltage Rating: 240VAC / 30VDC maximum per output
Output Current Rating: 2A per output (AC/DC), 8A total
Power Consumption: 32W maximum
Dimensions: 90 x 90 x 75mm (W x H x D)
Weight: Approximately 0.4kg
Output Type: Relay (form A contact)
Compact Design and Space Efficiency
The FX0N-24MR-ES features a compact design with dimensions of 90 x 90 x 75mm, making it suitable for installation in space-constrained control cabinets. The small footprint allows the PLC to be mounted in locations where larger controllers would not fit, including OEM machinery with limited panel space and retrofit applications where existing control cabinets are already crowded. The compact design does not compromise functionality, providing the essential features required for small machine control while minimizing physical space requirements.
Input Configuration
The PLC provides 14 digital input points for connection to field devices. The inputs accept 24V DC signals from sensors, pushbuttons, limit switches, proximity sensors, and other discrete field devices. The input circuits are designed with filtering to reject electrical noise, ensuring reliable signal detection even in industrial environments with significant electrical interference. The input points are organized into groups with common connections, simplifying wiring and reducing installation time. The input specifications are compatible with standard industrial sensors, making the PLC suitable for a wide range of applications.
Relay Output Capabilities
The FX0N-24MR-ES features 10 relay outputs that provide switching capability for AC and DC loads. Each relay output is rated at 2A maximum at 240VAC or 30VDC, with a total output current limit of 8A across all outputs. The relay outputs provide galvanic isolation between the PLC logic and field devices, protecting the controller from electrical noise and voltage transients that could affect solid-state outputs. The relay contacts can switch both AC and DC loads, providing flexibility for applications with mixed load types. The relay outputs are suitable for driving contactors, solenoids, indicator lights, and small motors.
AC Power Supply Operation
The FX0N-24MR-ES operates directly from 100-240VAC power, eliminating the need for a separate DC power supply in many applications. The wide input voltage range accommodates facility power in different regions, from 100VAC in Japan to 120VAC in North America and 230VAC in Europe. The built-in power supply provides the required DC voltage for the PLC's internal logic circuits and input circuits, simplifying system design and reducing component count. The power supply includes filtering and surge protection to ensure reliable operation in industrial environments with voltage variations and transients.
Programming and Software Support
The FX0N-24MR-ES is programmed using Mitsubishi's GX Works or GX Developer software, which supports ladder logic programming for FX series PLCs. The programming environment provides tools for creating, editing, and debugging control logic, with online monitoring capabilities for real-time observation of program execution and I/O status. The software supports the full instruction set of the FX0N series, including basic logic instructions, timers, counters, arithmetic operations, data movement, and comparison functions. The ladder logic programming method is familiar to industrial electricians and control engineers, reducing training requirements.
FX0N Series Expansion Capabilities
The FX0N-24MR-ES is part of the FX0N series, which supports flexible I/O expansion through the use of expansion modules. The FX0N series can be configured with 24 to 128 I/O points by adding expansion units to the basic CPU. Expansion modules are available for additional digital inputs and outputs, as well as analog I/O modules such as the FX0N-3A which provides 2 analog inputs and 1 analog output with 8-bit resolution. The MELSECNET/MINI interface (FX0N-16NT) provides network connectivity for distributed I/O applications. This expansion capability allows the same CPU to serve applications with varying I/O requirements.
High-Speed Processing Features
The FX0N series includes high-speed processing features for applications requiring fast response times. The PLC can output 100KHz pulses for positioning applications when configured with the appropriate options. The high-speed counters and pulse output functions allow the FX0N-24MR-ES to control stepper motor drives and perform basic positioning tasks without requiring specialized motion control modules. These capabilities expand the range of applications that can be addressed with the compact FX0N platform.
Industrial Applications
The Mitsubishi FX0N-24MR-ES is deployed across numerous small-scale industrial automation applications. In packaging machinery, it controls filling machines, sealing equipment, and labeling applicators with simple start/stop and sequencing logic. In material handling, it manages small conveyor systems, diverters, and lift tables. In assembly equipment, it coordinates part feeding, assembly operations, and quality testing. The compact size and relay outputs make it particularly suitable for applications where panel space is limited and AC loads must be switched directly.
Environmental and Installation Specifications
The FX0N-24MR-ES is designed for installation in industrial control environments. The operating temperature range of 0°C to 55°C accommodates control cabinets in manufacturing facilities. The compact dimensions allow DIN rail or direct screw mounting, providing installation flexibility. The unit should be mounted in a location with adequate ventilation for heat dissipation, away from sources of moisture, dust, and corrosive fumes. The relay outputs should be protected against overcurrent conditions through the use of external fuses or circuit breakers.
Memory and Program Storage
The FX0N series provides EEPROM memory for program storage, retaining the user program during power interruptions without requiring a battery backup. The program capacity is sufficient for small to medium control applications, with memory organization supporting timers, counters, data registers, and internal relays. The non-volatile program storage eliminates the need for battery replacement maintenance, reducing long-term ownership costs. The program can be uploaded and downloaded via the programming port using standard programming software.
Conclusion
The Mitsubishi FX0N-24MR-ES compact PLC provides 24 I/O points with 14 inputs and 10 relay outputs, operating on 100-240VAC power. Its compact design, relay output flexibility, and expansion capabilities make it a practical solution for small machine control applications in industrial automation.
