Connection Parameters Needed for HMI/cMT Products to Communicate with Yokogawa FA-M3 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 Yokogawa FA-M3. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.

Supported Series: FA-M3 CPU SP35-5N, SP55-5N CPU port, F3LC11 Computer Link module

HMI Settings

Parameters	Recommended	Options	Notes
PLC type	YOKOGAWA FA-M3
PLC I/F	RS232
Baud rate	19200	9600 ~ 115200
Data bits	8	7, 8
Parity	Even	Even, Odd, None
Stop bits	1	1, 2
PLC sta. no.	1	1-32
cMT-G03 Gateway	Yes		The [Protocol Config] settings of cMT-G03 and upper HMI must be the same.

Protocol Config dialog showing Extension options with Checksum and Terminator checkboxes.

PLC Settings

Communication mode	Setting
Communication mode	Use Personal Communication Link
Use checksum	Enabled
Use End Character	Enabled

WideField Communication Setting

For WideField communication setting, select [Tool] / [Set Environment]. The default connection method is Automatic Recognition — WideField software will connect to the current PLC and retrieve its communication settings automatically. If the PLC communication configuration is already known, select Fixed mode to connect more quickly.

WideField Setup Environment dialog open on the Setup Communication tab, showing RS-232C selected as Communication Media with Automatic Recognition enabled.

NOTE: Since Personal Computer Link is used, connecting to the PLC will delay approximately 20 seconds for communication testing.

Yokogawa PLC Communication Setting

FA-M3 CPU SP55-5N (same as SP35-5N)

Use [File] / [New Project] to create a new project.

WideField application with the File menu open, highlighting New Project option.

In the project tree, open Configuration to set up communication.

WideField project tree panel showing the Configuration node under Executable program.

Configuration dialog open on the Setup Communication tab with Use Personal Computer Link, Checksum, and End Character all checked, and communication mode set to 19200bps Even Parity.

Device Address

Bit/Word	Device	Format	Range
B	X	DDDDD	0 ~ 71664
B	Y	DDDDD	0 ~ 71664
B	I	DDDDD	1 ~ 65535
B	M	DDDD	1 ~ 9984
B	L	DDDDD	0 ~ 78192
B	TU	DDD	0 ~ 512
B	CU	DDD	0 ~ 512
W	D	DDDDD	1 ~ 65535
W	B	DDDDDD	1 ~ 262144
W	V	DDD	1 ~ 256
W	W	DDDDD	1 ~ 78192
W	Z	DDDD	1 ~ 1024
W	F	DDDDDD	1 ~ 524288
W	TP	DDD	1 ~ 512

Wiring Diagram

NOTE: The serial port pin assignments may vary between HMI models.

RS-232

HMI	Direction	PLC
Pin assignments		RS232 9P D-Sub Male
Rx	↔ (bidirectional)	3 TX
Tx	↔ (bidirectional)	2 RX
GND	↔ (bidirectional)	5 GND
	↕︎ (tie)	7 8