Data Exchange Function; Modbus Data Exchange; Modbus Data Exchange - Plc Parameter Setting - Delta Electronics AH500 Operation Manual

A H 5 0 0 O p e r a t i o n M a n u a l

11.3 Data Exchange Function

AH500 series can exchange data with another Ethernet PLC not only by means of instructions, but also by a
table interface.
AH500 Basic CPU modules (AHCPU500/510/520/530) can exchange data via MODBUS TCP and AH500
Advanced CPU modules (AHCPU501/511/521/531) can exchange data via MODBUS TCP and MODBUS.
11.3.1

MODBUS Data Exchange

11.3.1.1 MODBUS Data Exchange
Data exchange between electronic devices can be achieved via MODBUS protocol. Through MODBUS
protocol, users can exchange data among Delta devices and any 3
the MODBUS standard. A chart showing information concerning MODBUS data exchange is provided below.
Communication mode
Maximum number
connections
Communication protocol
Maximum quantity of data
which can be read/written
Supported devices
Supported models

11.3.1.2 MODBUS Data Exchange - PLC Parameter Setting

Double-click HWCONFIG, and then double-click CPU. After CPU is double-clicked, the PLC Parameter
Setting window will be opened.
Click the Data Exchange Setup - COM tab.
11 - 6 0
MODBUS
of
32
Standard MODBUS and AH500 communication protocol
Remote terminal unit
Remote terminal unit
AH500 advanced CPU modules (AHCPU501/511/521/531)
rd
party devices, as long as they comply with
AH500 series 400 words
CPU module 6400 bits
DVP series PLCs 100 words
100 bits
Others 100 words
100 bits
AH500 series X, Y, M, SM, SR, D, T, C,
CPU module S, E
DVP series PLCs X, Y, M, D
Logical address
Others
0x0000~0xFFFF