Connection Parameters Needed for HMI/cMT Products to Communicate with a Mitsubishi FX3U/FX3G using EBPro (EasyBuilder Pro)

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. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.

Supported Series: Mitsubishi FX3U/FX3UC/FX3G/FX3S

Website: http://www.mitsubishi-automation.com

HMI Settings

Parameters	Recommended	Options	Notes
PLC type	Mitsubishi FX3U/FX3G
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: Support 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

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.

8P Mini-Din male connector pinout diagram showing pin numbering for the Mitsubishi FX3U RS-422 port.

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