Mitsubishi-electric QJ71C24N Manuel d'utilisateur Page 27

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MELSEC-Q
1 OVERVIEW
1
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
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
®
95 Operating System
• Microsoft
®
Windows
®
98 Operating System
• Microsoft
®
Windows NT
®
Workstation Operating System Version 4.0
• Microsoft
®
Windows
®
Millennium Edition Operating System
• Microsoft
®
Windows
®
2000 Professional Operating System
• Microsoft
®
Windows
®
XP Professional Operating System
• Microsoft
®
Windows
®
XP Home Edition Operating System
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.
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