





The Mitsubishi PLC FX3G-40MR/DS and FX3G-40MT/DS represent the latest evolution in the FX3G family, offering a cost-effective yet powerful solution for mid-range automation tasks. With 40 built-in I/O points and support for up to 128 I/O via extension, these controllers excel in applications ranging from packaging lines to material handling. The relay output version (MR) handles high-current loads, while the transistor version (MT) provides fast, solid-state switching for high-speed sequences. Built on a robust 32-bit processor, the FX3G-40M series delivers a basic instruction speed of 0.21 µs and a generous 32K-step program memory, ensuring smooth execution of complex logic. Its integrated real-time clock, 6 interrupt inputs, and comprehensive counter/timer suite make it ideal for time-critical processes. Backed by 100% original components and rigorous testing, this unit guarantees reliable operation in industrial environments.
| Parameter | Specification |
|---|---|
| Auxiliary Relays | 7,680 total (384 general M0–M383, 1,152 EEPROM latched M384–M1535, 6,144 general/optional latched M1536–M7679) |
| Special Auxiliary Relays | 512 (M8000–M8511) |
| State Relays | 4,096 total (1,000 EEPROM latched S0–S999, 3,096 general/optional latched S1000–S4095) |
| Timers | 320 total (206 100 ms T0–T199 & T250–T255, 46 10 ms T200–T245, 68 1 ms T246–T249 & T256–T319) |
| Counters | 235 total (16-bit and 32-bit): 36 general (C0–C15 & C200–C219), 199 EEPROM latched (C16–C199 & C220–C234) |
| High-Speed Counters | 21 total: 16 1-phase (C235–C250), 5 2-phase (C251–C255) |
| High-Speed Counter Speed | 1-phase: 6 points max at 60 kHz / 4 points at 10 kHz / 2 points; 2-phase: 3 points max at 30 kHz / 2 points at 5 kHz / 1 point |
| Real-Time Clock | Year, month, day, hour, minute, second, day of week |
| Data Registers | 8,000 total (128 general D0–D127, 972 EEPROM latched D128–D1099, 6,900 general/optional latched D1100–D7999) |
| Extension Registers | 24,000 (R0–R23999) |
| Extension File Registers | 24,000 (ER0–R23999) internal/optional memory |
| Index Registers | 16 |
| Special Data Registers | 256 (D8000–D8255) / 512 (D8000–D8511) |
| Pointers | 2,048 |
| Nestings | 8 |
| Interrupt Inputs | 6 |
| Constants | 16-bit: K -32,768 to +32,767 / H 0 to FFFF; 32-bit: K -2,147,483,648 to +2,147,483,647 / H 0 to FFFF FFFF |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22