Connection Parameters Needed for HMI/cMT Products to Communicate with Trio MODBUS RTU, TCP/IP (Mode 7) 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 Trio MODBUS RTU, TCP/IP (Mode 7). Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.

Website: http://www.triomotion.com

HMI Settings

Parameters	Recommended	Options
PLC type	Trio MODBUS RTU, TCP/IP (Mode 7)
PLC I/F	RS485	RS232/RS485/Ethernet
Baud rate	9600	9600~115200
Data bits	8	7, 8
Parity	Even	Even, Odd, None
Stop bits	1	1, 2
Port no.	502
PLC sta. no.	1	0–255
Online simulator	YES
Broadcast command	YES
Extend address mode	YES

PLC Settings

Parameter	Value
Communication mode	Modbus RTU protocol
PLC mode	7 (IEEE floating point)

Device Address

Bit/Word	Device Type	Format	Range
B	VR_Bit	DDDDDdd	0 ~ 1638431
B	VR_INT_Bit	DDDDDdd	0 ~ 1638431
B	Table_Bit	DDDDDdd	0 ~ 3199931
B	Table_INT_Bit	DDDDDdd	0 ~ 3199931
W	VR	DDDDD	0 ~ 16384
W	VR_INT	DDDDD	0 ~ 16384
W	Table	DDDDD	0 ~ 31999
W	Table_INT	DDDDD	0 ~ 31999

Wiring Diagrams

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

Diagram 1: RS-232

HMI	Direction	PLC
Pin assignments		RS232 9P D-Sub Male
Rx	↔ (bidirectional)	TXD
Tx	↔ (bidirectional)	RXD
GND	↔ (bidirectional)	GND
	↕︎ (tie)	RTS CTS

Diagram 2: RS-485 2W

HMI	Direction	PLC
Pin assignments		RS485 2W 9P D-Sub Male
Data-	↔ (bidirectional)	D-
Data+	↔ (bidirectional)	D+
GND	↔ (bidirectional)	GND

Diagram 3: RS-485 4W

HMI	Direction	PLC
Pin assignments		RS485 4W 9P D-Sub Male
Rx-	↔ (bidirectional)	TX-
RX+	↔ (bidirectional)	TX+
Tx-	↔ (bidirectional)	RX-
Tx+	↔ (bidirectional)	RX+
GND	↔ (bidirectional)	GND

Diagram 4: Ethernet Cable

RJ45 straight-through Ethernet cable wiring diagram showing color-coded pairs: W/Orange, Orange, W/Green, Blue, W/Blue, Green, W/Brown, Brown mapped pin-for-pin on both ends.