Yaskawa Modbus TCP/IP Installation Bedienungsanleitung PDF herunterladen (Seite 35)

YASKAWA ELECTRIC TOBP C730600 57B 1000-Series Option SI-EM3 Installation Manual 35

7 Modbus TCP/IP Messaging

◆ Modbus TCP/IP Overview

The Modbus TCP/IP protocol is essentially the Modbus protocol over an Modbus TCP/IP

network. A master controller (typically a PLC) sends commands to slave devices, which

then perform the specified functions and send a response to the master. The drive using the

option has slave functionality.

■ Supported Modbus TCP/IP Commands

Table 7 Supported Modbus TCP/IP Commands

■

Drive Modbus TCP/IP Option Registers

All of the command registers, monitor registers, and parameters documented in the drive

Technical Manual are accessible via the option.

■ High Speed Access Drive Modbus TCP/IP Option Registers

Many of the registers required for control have been specially mapped to provide higher

speed access to increase network performance. Use these registers for the best response

times.

All of the drive command registers have been mapped to this high speed access area

(Modbus TCP/IP registers 01H to 01FH). In addition, the monitors shown in Table 8 are

mapped for high speed access.

Function Code Function Name

03H Read Multiple Registers

06H Write Single Register

10H Write Multiple Registers

17H Read/Write Multiple Registers

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Yaskawa Modbus TCP/IP Installation Bedienungsanleitung Seite 35