Introduction - Mitsubishi Electric FX3U-232-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Common Items
1.

Introduction

This manual explains the communication types supported by FX PLCs.
This chapter explains the serial communication (in accordance with RS-232C, RS-485/RS-422), various link
communication types, etc. and states the applicable FX PLCs.
1.1 Communication Types
The table below shows the communication types supported by the FX Series.
Link
CC-Link
N:N Network
Parallel link
Computer link
Inverter
communication
MODBUS
communication
Ethernet communication
Ethernet
General-purpose serial communication
Non-protocol
communication
Sequence program
Programming
communication
Remote
maintenance
• Connects FX PLCs as remote device stations to the CC-Link system
whose master station is a MELSEC A/QnA PLC.
• Connects FX PLCs as remote device stations and intelligent device
Function
stations to the CC-Link system whose master station is a MELSEC
Q PLC.
• Constructs a CC-Link system whose master station is an FX PLC.
Line control in the decentralized or centralized method and information
Application
transfer from/to the host network.
Function Easily enables data link between FX PLCs.
Application Line control in the decentralized or centralized method.
Function Easily enables data link between FX PLCs.
Application Line control in the decentralized or centralized method.
Connects a personal computer or another computer as the master
Function station, and connects FX PLCs as slave stations.
Protocols in a computer support computer link protocol formats 1 and 4.
Application Data acquisition and centralized control.
Function Communicates with and controls Mitsubishi Electric inverter FREQROL.
Operation monitoring, writing of control values, referencing and
Application
changing parameters, etc.
Enables MODBUS
Function
equipment in accordance with RS-232C or RS-485.
Application Line control in the decentralized or centralized method.
Connects the FX PLC to a high-order system such as personal
Function computer or workstation via Ethernet (100BASE-TX or 10BASE-T)
using TCP/IP or UDP/IP communication protocol.
Line control in the decentralized or centralized method and information
Application
transfer from/to the host network.
Receives and sends data from/to various pieces of equipment with an
Function
RS-232C or RS-485 interface in non-protocol procedures.
Data reception and sending from/to a personal computer, bar code
Application
reader, printer and other various measuring instruments.
Adds RS-232C, RS-422, USB and Ethernet ports in addition to the
Function
provided RS-422 port in PLCs.
Application Simultaneously connection of two display units, programming tools, etc.
Connects with a PLC located in a remote location through a modem
Function and telephone line to enable program transfer and remote monitoring
access.
Application Maintenance of sequence programs in FX PLCs.
communication with MODBUS-compatible
1 Introduction
1.1 Communication Types
A
B
C
Reference
subsection
D
1.2.1
E
1.2.3
1.2.4
1.2.5
F
1.2.6
1.2.8
G
Reference
subsection
1.2.2
H
Reference
subsection
1.2.7
Reference
subsection
1.2.9
Apx.A
1.2.10
A-1
I