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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 Inovance H3U Series. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.

HMI Settings

ParametersRecommendedOptionsNotes
PLC typeInovance H3U Series
PLC I/FRS485 4W
Baud rate96009600~19200
Data bits77 or 8
ParityEvenEven, Odd, None
Stop bits11 or 2
PLC sta. no.0

Device Address

Bit/WordDevice typeFormatRangeMemo
BXOOO0 ~ 377
BYOOO0 ~ 377
BMDDDD0 ~ 7999
BM8000DDDD8000 ~ 8511
BC_BitDDD0 ~ 255
BT_BitDDD0 ~ 511
BSDDDD0 ~ 4095
BSMDDDD0 ~ 1023
WCDDD0 ~ 199
DWC_DoubleDDD200 ~ 255
WTDDD0 ~ 511
WDDDDD0 ~ 7999
WD8000DDDD8000 ~ 8511
WSDDDDD0 ~ 1023
WRDDDDD0 ~ 32767

NOTE: ddd: Decimal, hhh: Hexadecimal, ooo: Octal.

Wiring Diagrams

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

8-pin Mini-DIN connector pinout diagram showing the soldering-point view of the connector face.

The view from the soldering point of a connector.

RS-485 4W

HMIDirectionPLC
Pin assignmentsH3U RS422 8P
Mini-DIN Male
Rx-↔ (bidirectional)4
RX+↔ (bidirectional)7
Tx-↔ (bidirectional)1
Tx+↔ (bidirectional)2
GND↔ (bidirectional)3