Features Of The Serial Communication Module - Mitsubishi QJ71C24/-R2 User Manual

1 OVERVIEW

1.2 Features of the Serial Communication Module

The following describes the features of the Q series C24.
(1) Data communication based on the MELSEC communication
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protocol (hereinafter referred to as the MC protocol)
(Details are explained in the MELSEC Communication Protocol Reference
Manual.)
(a) External devices can read/write the PLC device data and sequence
programs, and can monitor PLC equipment status.
With the exception of the on-demand function described below, the PLC
does not require a sequence program because the PLC sends and receives
data based solely on commands from external devices.
(b) Using the on-demand function, data can be sent from the PLC CPU to the
external devices in each frame format of the MC protocol.
(c) Data communication can be performed using a program at the external
device side that has been created for communicating data with conventional
A/QnA series computer link module/serial communication modules.
(d) If the external device is a PC running one of the basic operation systems
below, it is possible to create a communication program for the external
device without considering the detailed MC protocol (transmission/reception
procedures) using one of the following separately sold communication
support tools.
(Supported basic operation systems)
®
• Microsoft Windows
®
• Microsoft Windows
®
• Microsoft Windows NT
®
• Microsoft Windows
®
• Microsoft Windows
®
• Microsoft Windows
®
• Microsoft Windows
Depending on the version of MX Component used, different operating
systems are supported.
See the manual of MX Component for the details.
(Separately sold communication support tools)
• MX Component (SW0D5C-ACT-E or later, hereinafter abbreviated as MX
Component)
See Appendix 7 for the overview of MX Component.
®
95 Operating System
®
98 Operating System
®
Workstation Operating System Version 4.0
®
Millennium Edition Operating System
®
2000 Professional Operating System
®
XP Professional Operating System
®
XP Home Edition Operating System
MELSEC-Q
1
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