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Introduction

All Maple Systems HMIs programmed with EBPro (EasyBuilder Pro), including every cMT X Series and cMT Series model, are compatible with Idec Micro. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.

Supported Series: IDEC Micro3, Micro3C, OpenNet Controller series

Website: http://www.idec.com

HMI Settings

ParametersRecommendedOptionsNotes
PLC typeIDEC Micro
PLC I/FRS232RS232, RS485
Baud rate96009600, 19200
Data bits77, 8
ParityEvenEven, Odd, None
Stop bits11
PLC sta. no.255 (for 1:1 connect)0-255255 or same as the PLC setting
Online simulatorYES
Extend address modeYESDo not set the PLC Station No. to 255

PLC Settings

ParametersRecommended
Communication mode9600, E, 7, 1 (default), Use Computer Link Protocol

Device Address

Bit/WordDevice typeFormatRangeMemo
BXDDDDo0 ~ 20477Input (I)
BYDDDDo0 ~ 20477Output (Q)
BMDDDDo0 ~ 20477Internal Relay (M)
WRTDDDD0 ~ 9999Timer (T)
WRCDDDD0 ~ 9999Counter (C)
WDDDDD0 ~ 9999Data Register (D)

Wiring Diagrams

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

Diagram 1: RS-232 (Micro3C, MicroSmart, OpenNet Controller CPU Ladder Port)

The following is the view from the soldering point of a connector.

Soldering-point view of an 8-pin Mini-DIN connector showing pin numbering layout for IDEC Micro3C and MicroSmart CPU port wiring.
HMIDirectionPLC
Pin assignmentsPort1 or Port2
8P Mini-DIN
Male
Rx↔ (bidirectional)3
Tx↔ (bidirectional)4
GND↔ (bidirectional)7

Diagram 2: RS-485 2W (Micro3 CPU Port, MicroSmart with FC4A-PC2 RS485 Communication Adapter)

The following is the view from the soldering point of a connector.

RS-232 wiring diagram for IDEC Micro3C and OpenNet Controller CPU Ladder Port showing HMI Rx, Tx, and GND connections to pins 3, 4, and 7 of the 8P Mini-DIN connector.
HMIDirectionPLC
Pin assignmentsRS485
8P Mini-DIN
Male
Data-↔ (bidirectional)2
Data+↔ (bidirectional)1
GND↔ (bidirectional)7

The view from the soldering point of a connector

RS-485 2-wire wiring diagram for IDEC Micro3C and OpenNet Controller Data Link Terminals showing HMI Data-, Data+, and GND connections to terminals A, B, and SG.
HMIDirectionPLC
Pin assignmentsData Link Terminal
Data-↔ (bidirectional)A
Data+↔ (bidirectional)B
GND↔ (bidirectional)SG