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Mitsubishi QD51 User Manual
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2 - 7
2 - 7
MELSEC-Q
2 SYSTEM CONFIG
URATION AND USAB
LE FUNCTIONS
2.4 For Use wi
th Redundant CPUs
This s
ectio
n descr
ibes th
e use of
the Q
D51(-R
24) wi
th the
Redund
ant CPUs
.
(1) Dedicated i
nstructions
The de
dicat
ed inst
ructi
ons a
re not ap
plic
able.
30
32
Table of Contents
Default Chapter
3
Safety Precautions
3
Revisions
7
Table of Contents
8
About Manuals
11
How to Read this Manual, and Configuration
12
About the Generic Terms and Abbreviations
13
Meaning of Terms and Their Contents
15
Product Configuration
15
1 Overview
16
Operation Overview for QD51 (-R24)
17
Features of QD51 (-R24)
19
About the Function Added/Changed to the Function Version B
24
2 System Configuration and Usable Functions
25
Application Systems
25
For Use in Multiple CPU System
30
For Use with Redundant Cpus
31
For Use at MELSECNET/H Remote I/O Station
32
How to Confirm the Function Version
34
3 Specifications
36
Performance Specifications
36
Interface Specifications
38
Connector Specifications
38
Cable Specifications
39
RS-422/485 Interface Specifications
40
RS-422/485 Terminal Block Specifications
40
RS-422/485 Cable Specifications
41
Cautions During Data Communications with a RS-422/485 Line
42
List of Commands and Functions in AD51H-BASIC
45
QD51 (-R24) Internal Memory
51
Program Area
53
Buffer Memory
55
Common Memory
58
Expansion Register (ED0 to ED1023)
61
Special Register (ED9000 to ED9127)
66
Expansion Relay (EM0 to EM1023)
70
Special Relay (EM9000 to EM9127)
73
Receive Buffer
76
List of GX Developer Setting Items for the QD51 (-R24)
77
List of Input/Output Signals From/To the Programmable Controller CPU
78
Input (X) Detailed Explanation
80
Output (Y) Detailed Explanation
84
Relationship between the QD51 (-R24) Start Condition and the Flash ROM Execution Program Area
88
QD51 (-R24) Operation When the Power Is Turned on
89
In the Case of the Programming Mode
89
In the Case of the Multitask Debug Mode
90
In the Case of the Run Mode
91
Running a Task (a Created Program)
92
Conditions for Permitting Running of a Task and Start Conditions
92
Starting by Turning the Power on or by Reset (Start Condition: START)
93
Starting by an Interrupt from the Programmable Controller CPU (Start Condition: IT)
95
Starting by a Start Request from Another Task (Start Condition: BOOT, ON)
96
Running a BASIC Program by Multitask Processing
98
Multitask Processing
98
BASIC Program Priority Order (Priority)
99
Synchronizing Execution between BASIC Programs (Event Control)
100
Sharing Equipment (Resources) by Multitasking
101
4 About Qd51 (-R24) Functions
102
List of Functions
102
Communications with a Console / Terminal
104
Communications with a Terminal
107
Printing by a Printer
111
Printing from a Printer Connected to an Interface that Is Not Set in the Console
112
Printing from a Printer Connected to the Console
114
Communications with the External Device
115
If Data Are Being Sent
115
If Data Are Received
116
Communications with the Programmable Controller CPU
117
ON/OFF Data Communications by General Output (X/Y)
118
Reading and Writing Data From/To Buffer Memory
119
Reading and Writing Data From/To the Programmable Controller CPU
120
Reading and Writing Data From/To the Programmable Controller Cpu's Expansion File Register
121
Reading and Writing Data From/To the Buffer Memory of Another Intelligent Function Module/Special Function Module
122
Reading and Writing Clock Data
123
Data Communications between Tasks
124
ON/OFF Data Communications by Expansion Relay (EM)
124
Data Communications by Expansion Register (ED)
125
Data Communications by Common Memory
125
5 Settings and Procedures up until Operation
126
Handling Precautions
126
Names of Parts and Functions
128
Connection with a Console, Debugger
129
Connection with the External Device
130
Connecting to the RS-232 Interface
131
Connecting to the RS-422/485 Interface
133
Setting from the GX Developer
136
I/O Assignment Settings
136
Switch Setting for I/O and Intelligent Function Module
137
Intelligent Function Module Interrupt Point Settings
141
Maintenance, Checks
142
6 Exclusive Commands
143
Exclusive Command List and Available Devices
143
Z(P).Ycheck
144
7 Troubleshooting
145
About QD51 (-R24) Status Checks
145
Checking the LED Lighting Status, Communications Error Status and QD51 (-R24) Switch Setting Status
145
Errors that Occur in BASIC
147
Appendix
148
Appendix-1 Comparison of Functions with Previous Modules
148
Appendix-2 about Use of Programs from Previous Modules
149
Appendix 2.1 about Use of A1SD51S, AD51H-S3 Programs
149
Appendix-3 External Dimensions
153
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Mitsubishi QD51 Specifications
General
Brand
Mitsubishi
Model
QD51
Category
Controller
Language
English
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