Hardware manual

Chapter2 Connection to a PLC
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12.6.6 Communication Format
This chapter describes the communication format of the MODBUS/TCP Server communication.
The MODBUS/TCP Server communication supports Class 0 and Class 1 functions of the OPEN
MODBUS/TCP SPECIFICATION Release1.0. For details about the communication methods,
refer to the OPEN MODBUS/TCP SPECIFICATION Release1.0 as well as this manual.
12.6.6.1 Preparations for Communication
The MODBUS/TCP Server performs communications using the TCP. Make sure to establish a
connection with the specified port of the MICRO/I with TCP before executing reading/writing of
devices.