Introduction
All Maple Systems HMIs programmed with EBPro (EasyBuilder Pro), including every cMT X Series and cMT Series model, are compatible with a Mitsubishi FX3U/FX3G/FX3GA. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.
Supported Series: Mitsubishi FX3U/FX3UC/FX3G/FX3S/FX3GA
Website: http://www.mitsubishi-automation.com
HMI Settings
| Parameters | Recommended | Options | Notes |
|---|---|---|---|
| PLC type | Mitsubishi FX3U/FX3G/FX3GA | ||
| PLC I/F | RS485 4w | RS232 / RS485 2w/4w / USB | |
| Baud rate | 38400 | 9600/19200 | |
| Data bits | 7 | ||
| Parity | Even | ||
| Stop bits | 1 | ||
| PLC sta. no. | 0 | Does not apply to this protocol | |
| Online simulator | YES (9600 baud rate only) | ||
| Extend address mode | NO |
NOTE: Supports communications between HMI and PLC in pass-through mode.
NOTE: Set LW-9903 to 2 to enhance the speed of download/upload PLC program in pass-through mode.
Device Address
| Bit/Word | Device | Format | Range | Memo |
|---|---|---|---|---|
| B | X | OOO | 0 ~ 764 | Input Relay |
| B | Y | OOO | 0 ~ 764 | Output Relay |
| B | M | DDDD | 0 ~ 7999 | Auxiliary Relay |
| B | T | DDD | 0 ~ 511 | Timer Relay (T) |
| B | C | DDD | 0 ~ 255 | Counter Relay (C) |
| B | SM | DDDD | 8000 ~ 9999 | Special Relay (M) |
| B | D_Bit | DDDDdd | 0 ~ 799915 | Data Register Bit (D) |
| B | S | DDDD | 0 ~ 4095 | State Relay (S) |
| W | TV | DDD | 0 ~ 511 | Timer Memory (T) |
| W | CV | DDD | 0 ~ 199 | Counter Memory (C) |
| W | D | DDDD | 0 ~ 7999 | Data Register (D) |
| DW | CV2 | DDD | 200 ~ 255 | Counter Memory (D Word) |
| W | SD | DDDD | 8000 ~ 9999 | Special Data Register (D) |
| W | R | DDDDD | 0 ~ 32767 | Extended Register (R) |
| W | Z | D | 0 ~ 7 | Index Register |
Import Tags
Export: MELSOFT Series GX Works2 → Global Label Setting → Write to CSV File

Import: EBPro (EasyBuilder Pro) → System Parameter Settings → Device → Driver → Import Tags

Wiring Diagrams
NOTE: The serial port pin assignments may vary between HMI models.
The following is the view from the soldering point of a connector.

RS-485 4W
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | RS422 Port 8P Mini-Din Male | |
| Rx- | ↔ (bidirectional) | 4 |
| RX+ | ↔ (bidirectional) | 7 |
| Tx- | ↔ (bidirectional) | 1 |
| Tx+ | ↔ (bidirectional) | 2 |
| GND | ↔ (bidirectional) | 3 |
