A&D AD-4408A Instruction Manual download pdf (Page 4)

1. Introduction

The AD-4408A functions as a slave device of Modbus (RTU) when the Modbus-RTU

interface module (AX-ABCC-MODBUS) is installed.

A signal level can be selected either for RS-232 or RS-485.

Data communication using Modbus can be performed by pre-mapped memory

operation. Thus, programming communication protocol is not required.

NOTE: Memory map and check modes vary with the interface module installed.

This manual describes performances when the Modbus-RTU interface

module is installed.

When other modules are installed, refer to the relevant instruction manual.

Instruction manuals for each interface module are available on our

website.

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A&D AD-4408A Instruction Manual Page 4