Mitsubishi FX3U-128MR-ES/A PLC Controller Module

Series#: Mitsubishi

Product Details

Mitsubishi FX3U-128MR-ES/A and FX3U-128MT-ES/A – High-performance PLC controller modules designed for demanding industrial automation.
Ultra-fast processing speed of 0.065 µs per basic instruction for real-time control.
Expandable I/O up to 384 points via extension blocks, supporting relay (MR) or transistor (MT) outputs.
Built-in high-speed counters up to 100 kHz (1-phase) and 50 kHz (2-phase) for precise motion control.
Large memory capacity: 8,000 data registers and 32,768 extension registers for complex data handling.
Robust communication options: integrated RS-422, expandable with Ethernet, CC-Link, or MODBUS adapters.
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Specification

The Mitsubishi FX3U-128MR-ES/A and FX3U-128MT-ES/A are flagship PLC controller modules from the FX3U series, offering unmatched scalability and processing power for mid-to-large scale automation systems. These units feature a powerful 32-bit RISC processor, enabling a lightning-fast instruction execution speed of 0.065 µs per basic command and 0.642 µs per MOV instruction. With 128 built-in I/O points (expandable to 384), they support both relay (MR) and sink/source transistor (MT) output types, making them ideal for applications ranging from packaging lines to CNC machinery. The modules include extensive on-board memory with 7,680 auxiliary relays, 512 timers, and 235 counters, plus a dedicated high-speed counter array for encoder feedback up to 100 kHz. Advanced built-in functions such as PID control, positioning, and data logging are standard, while the RS-422 port allows seamless integration with Mitsubishi GX Works2 software for programming and diagnostics. Below are the detailed technical specifications derived from the original Mitsubishi datasheet.

Parameter	FX3G/FX3GC/FX3GE Series	FX3U/FX3UC Series (Applicable to FX3U-128MR/MT-ES/A)
Auxiliary Relays	7,680 total; 384 general (M0–M383), 1,152 EEPROM latched (M384–M1535), 6,144 general/optional latched (M1536–M7679)	7,680 total; 500 general (M0–M499), 524 optional latched (M500–M1023), 6,656 latched (M1024–M7679)
State Relays	4,096 total; 1,000 EEPROM latched (S0–S999), 3,096 general/optional latched (S1000–S4095)	4,096 total; 1,000 optional latched (S0–S999), 3,096 latched (S1000–S4095)
Timers	320 total: 206 x 100ms (T0–T199, T250–T255), 46 x 10ms (T200–T245), 68 x 1ms (T246–T249, T256–T319)	512 total: 206 x 100ms (T0–T191, T192–T199, T250–T255), 46 x 10ms (T200–T245), 260 x 1ms (T246–T249, T256–T511)
Counters (16/32-bit)	235 total; 36 general (C0–C15, C200–C219), 199 EEPROM latched (C16–C199, C220–C234)	235 total; 120 general (C0–C99, C200–C219), 115 latched (C100–C199, C220–C234)
High-Speed Counter Speed	1-phase: 6 points max (60kHz/4pts, 10kHz/2pts); 2-phase: 3 points max (30kHz/2pts, 5kHz/1pt)	1-phase: 8 points max (100kHz/6pts, 10kHz/2pts); 2-phase: 2 points max (50kHz/2pts)
Data Registers	8,000 total; 128 general (D0–D127), 972 EEPROM latched (D128–D1099), 6,900 general/optional latched (D1100–D7999)	8,000 total; 200 general (D0–D199), 312 optional latched (D200–D511), 7,488 latched (D512–D7999)
Extension Registers	24,000 (R0–R23999)	32,768 (R0–R32767)
Extension File Registers	24,000 (ER0–R23999) internal/optional memory	32,768 (ER0–R32767) optional memory

Power Supply & I/O: Rated 100-240V AC, 50/60Hz; 128 I/O points (64 inputs/64 outputs) – relay or transistor sink/source configurable.
Memory & Backup: 64K steps program memory (EEPROM optional); lithium battery backup for latched devices (typical 5-year life).
Communication Ports: 1x RS-422 programming port; supports expansion with FX3U-232ADP, FX3U-485ADP, or FX3U-ENET modules.
Positioning & Motion: Up to 3 independent axes (100kHz pulse output) via built-in positioning instructions; supports linear and circular interpolation.
Environmental Ratings: Operating temperature 0–55°C; storage -25–75°C; IP10 enclosure (panel-mount with IP20 optional).
Compliance & Certifications: CE, UL, and cUL listed; meets IEC 61131-2 standards for industrial control equipment.