What Is SCADA? Supervisory Control Without Replacing the PLC
SCADA sits above PLCs and RTUs: it acquires field data, alarms operators, and issues supervisory commands across plants and remote assets—without replacing local deterministic control.

Configured to deliver fast execution and dense local physical points, the Mitsubishi Electric FX2N-80MT-ES/UL serves as a high-density processing core within the FX2N micro PLC family. This unit integrates internal memory capacity, specialized high-speed counters, and dual-axis positioning outputs into a compact footprint. Designed for high-duty cycle industrial environments, it features a robust internal power supply and sink-logic transistor outputs suitable for driving interface relays, solenoids, and stepper/servo motor drives.
| Parameter | Specification |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | FX2N-80MT-ES/UL |
| Primary Input Power | 100 to 240 VAC, 50/60 Hz (Allowable: 85 to 264 VAC) |
| Power Consumption | 45 W |
| Service Power Output | 24 VDC, 460 mA or less |
| Internal Supply | 5 VDC, 290 mA |
| Execution Speed | 0.08 microseconds / basic instruction |
| Digital Inputs | 40 points (24 VDC, Sink/NPN format) |
| Input Impedance | 3.3 kilohms (X000 to X007), 4.3 kilohms (X010 and higher) |
| Digital Outputs | 40 points (Transistor, Sink/NPN format) |
| External Output Voltage | 5 to 30 VDC |
| Maximum Output Current | 0.5 A per point (0.8 A per 4-point common, 1.6 A per 8-point common) |
| High-Speed Counters | 1-phase: up to 60 kHz; 2-phase: up to 30 kHz (configured via programming) |
| Pulse Output Frequency | Max 20 kHz (Independent dual-axis control) |
| I/O Termination | Removable M3 screw terminal blocks |
| Operating Temperature | 0 to 55 degC |
| Shipping Weight (Calculated) | 1.20 kg (2.65 lbs) |
| Package Dimensions (Calculated) | 285 mm x 90 mm x 87 mm |
| Country of Origin | Japan |
| Terminal / Port | Function / Circuit Assignment |
|---|---|
| L, N, Ground | AC Power input terminals (100 to 240 VAC, 50/60 Hz power source) |
| 24V, 0V | Auxiliary 24 VDC service power output (maximum 460 mA for field sensors) |
| X000 to X047 | Sink configuration digital input terminals (X000 to X007 mapped for high-speed interrupts) |
| Y000 to Y047 | Sink configuration (NPN) transistor output terminals (Y000 & Y001 dedicated to pulse outputs) |
| COM (Outputs) | Common return terminals for transistor outputs (grouped in 1, 4, or 8 point configurations) |
| Peripheral Port | RS-422 interface (8-pin mini-DIN) for HMI connection or GX Developer programming tools |
When replacing legacy FX series systems, note that the FX2N-80MT-ES/UL is specifically configured for NPN/Sink inputs and NPN/Sink transistor outputs. For installations demanding source (PNP) logic output control, the alternative model FX2N-80MT-ESS/UL should be sourced to prevent mismatched polarity on field relay manifolds or servo inputs.
Ensure that the total power drawn from the 24 VDC auxiliary service terminals does not exceed 460 mA. Overloading this channel will cause the internal power supply to enter over-current protection mode, causing intermittent system shutdowns. For extensive sensor networks, always route field sensor power through an independent, external 24 VDC industrial power supply with a common ground reference to the controller's 0V terminal.
When utilizing high-speed counters (up to 60 kHz) on inputs X000 through X007, route high-speed encoder signaling wires inside dedicated, shielded twisted-pair cables. Ground the shield at the PLC-side chassis terminal only. Avoid laying encoder cables parallel to high-current power lines or AC motor drive leads within the wire duct to prevent high-frequency noise from corrupting pulse counts.
Isolate and lock out all AC mains power (100-240 VAC) feeding the controller before mounting or starting any wiring terminations. Work with insulated hand tools only. Verify that all terminal block retaining screws are securely tightened to prevent loose connections from causing thermal faults or arc damage.
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| Country of origin |
United States
|