Modbus Tcp/Ip Messaging - YASKAWA V1000 Installation Manual

7 Modbus TCP/IP Messaging

7 Modbus TCP/IP Messaging
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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
n
Function Code
03H
06H
10H
17H
Drive Modbus TCP/IP Option Registers
n
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
n
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
mapped for high speed access.
EN 32
Table 9 Supported Modbus TCP/IP Commands
Read Multiple Registers
Write Single Register
Write Multiple Registers
Read/Write Multiple Registers
YASKAWA ELECTRIC TOBP C730600 59A V1000 Option Modbus TCP/IP Installation Manual
Function Name
Table 10 are