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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 ABB AC500. Configure your Controller and HMI/CMT with the following parameters to establish reliable communication.

Supported Series: ABB AC500

HMI Settings

ParametersRecommendedOptionsNotes
PLC typeABB AC500
PLC I/FRS485 2WRS232/RS485 2W / Ethernet
Baud rate19200
Data bits8
ParityEven
Stop bits1
PLC sta. no.0
Port no.502Ethernet
Byte orderBig endian (V2)Big endian (V2)
Little endian (V2)
Big endian (V3)
Little endian (V3)
*Note

NOTE: See AC500 V2 Settings and AC500 V3 Settings below for Automation Builder configuration.

AC500 V2 Settings

Automation Builder showing Modbus TCP/IP Server Settings panel with byte order set to Big Endian and server connections configured to 4.

AC500 V3 Settings

Automation Builder full view showing the Modbus TCP/IP Server Parameters list with byte order highlighted as Big Endian.

PLC Settings

In the PLC IDE, add a Modbus TCP server to your device tree within your Automation Builder software.

Example: PLC_AC500_V2

Automation Builder project tree showing Modbus_TCP_IP_Server highlighted under the ETH1 Ethernet interface.

Device Address

Bit/WordDevice typeFormatRangeAddressing in Automation Builder
BMX0DDDDo0 ~ 81917%MX0.0.0 ~ 0.8191.7
BMW_BITDDDDDdd0 ~ 3276715*Note
WMW0DDDDD0 ~ 32767%MW0.0 ~ 0.32767
WMW1DDDDD0 ~ 32767%MW1.0 ~ 1.32767
DWMD0DDDDD0 ~ 16383%MD0.0 ~ 0.16383
DWMD1DDDDD0 ~ 16383%MD1.0 ~ 1.16383

NOTE: MW_BIT is used for Bit access in any MW0.

Wiring Diagram

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

Diagram 1: RS-232

HMIDirectionPLC
Pin assignmentsRS232
9P D-Sub
Female
Rx↔ (bidirectional)2 TXD
Tx↔ (bidirectional)3 RXD
GND↔ (bidirectional)5 GND

Diagram 2: RS-485 2W

HMIDirectionPLC
Pin assignmentsRS485 2W
9P D-Sub
Female
Data−↔ (bidirectional)8 Data−
Data+↔ (bidirectional)3 Data+
GND↔ (bidirectional)5 GND

Diagram 3: Ethernet Cable

Ethernet straight-through cable wiring diagram showing eight color-coded wire pairs connecting pin-for-pin from W/Orange on pin 1 to Brown on pin 8.