Introduction - Hitachi X200-002SFE/NFU Instruction Manuals

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Introduction

X200 Series inverters have built-in RS-485 serial communications, featuring the
ModBus RTU protocol. The inverters can connect directly to existing factory networks
or work with new networked applications, without any extra interface equipment. The
specifications for X200 serial communications are in the following table.
The network diagram below shows a series of inverters communicating with a host
computer. each inverter must have a unique address, from 1 to 32, on the network. In a
typical application, a host computer or controller is the master and each of the
inverter(s) or other devices is a slave.
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Item
Transmission speed 4800 / 9600 / 19200 bps
Communication mode Asynchronous
Character code Binary
LSB placement Transmits LSB first
Electrical interface RS-485 differential transceiver
Data bits 8-bit (ModBus RTU mode)
Parity None / even / odd
Stop bits 1 or 2 bits
Startup convention One-way start from host device
Wait time for response 0 to 1000 msec.
Connections Station address numbers from 1 to 32
Connector RS45 modular jack
Overrun, Fleming block check code,
Error check
CRC-16, or horizontal parity
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Specifications
1 2
X200 X200
User-selectable
(ASCII mode not
available)
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32
X200