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Q2ACPU
Mitsubishi Q2ACPU User Manual
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19 -
6
19.
LOADING AND INSTALLATION
When co
nstructing
a fail-saf
e circuit
using on
delay tim
ers only
*4
Use a solid state relay for the
M1 relay
.
T1
M1
L
L
MC
T1
T2
M2
M2
M1
M1
MC
1s
1s
T2
M2
*4
SM412
YB0
YB0
0.5s
0.5s
YB0
YB1
YBF
24V
0V
CPU module
Output
module
External load
ON delay timer
ON delay timer
Internal program
24VDC
- +
297
299
Table of Contents
Default Chapter
12
Table of Contents
12
1 ABOUT this MANUAL 1 - 1 to
22
About this Manual
22
Abbreviations and Generic Terms Used in this Manual
23
2 Overview
24
Features
24
Additional Functions of Qnacpu
28
Overview of Added Functions
30
3 SYSTEM CONFIGURATION 3 - 1 to
32
System Configuration
32
Equipment Configuration in a Stand-Alone System
32
Configuration of Peripheral Devices Capable of Qnacpu
33
System Configuration Overview
34
System Equipment
37
System Equipment List
37
Precautions When Configuring the System
52
Qnacpu Memory Block Diagram
56
4 Performance Specifications
57
5 I/O Number Assignment
60
I/O Numbers
60
I/O Number Assignment Concept
61
I/O Assignment with GPP Function
63
Example of I/O Number Assignment
68
6 DATA COMMUNICATIONS with SPECIAL FUNCTION MODULES 6 - 1 to
74
Reading/Writing Data From/To the Qnacpu Using the FROM/TO Instruction
75
Reading/Writing Data From/To the Qnacpu Using Special Direct Devices
76
Processing for Data Communication Requests from a Special Function Module
78
7 Auto Refresh Function
79
For MELSECNET/MINI-S3
79
Auto Refresh Setting of CC-Link
86
8 Debugging Function
93
Function List
93
Monitor Function
94
Monitoring Condition Setting
94
Monitor Test of Local Device (Function Version B or Later)
104
Write During RUN
107
Execution Time Measurement
111
Program Monitor List
111
Interrupt Program Monitor List
111
Scan Time Measurement
111
Sampling Trace Function
117
Status Latch Function
127
Step Operation
133
Step Execution
133
Partial Execution
133
Skip Function
139
Program Trace Function
140
Simulation Function
149
Debugging by Several People
153
Simultaneous Monitoring by Several People
154
Simultaneous Execution of Write During RUN by Several People
155
9 Maintenance Function
157
Function List
157
Watchdog Timer
158
Self-Diagnostics Function
160
Interruption Due to Error Detection
164
LED Indication Due to an Error
164
Resetting Error
165
Error History
166
System Protect
167
Password Registration
168
Online I/O Module Replacement
170
System Display
172
LED Indications
173
LED Indication
173
Priority Setting
175
10 Other Functions
178
Function List
178
Constant Scan
179
Latch Function
182
Setting of the Output (Y) Status When Switching from STOP to RUN
184
Clock Function
185
Remote Operation
190
Remote RUN/STOP
190
Remote STEP-RUN
192
Remote PAUSE
193
Remote RESET
195
Remote Latch Clear
196
Relationship between Remote Operation and CPU Module RUN/STOP Key Switch
197
Terminal Operation
198
Operation for Message Display
198
Key Input Operation
199
Reading Module Access Time Intervals
200
11 COMMENTS that CAN be STORED in Qnacpu
202
Function List
202
PLC Name
203
Drive Title
204
File Title
205
Device Comment
206
Statements/Notes
208
Initial Device Value Comment
209
12 OVERVIEW of PROCESSING PERFORMED by the Qnacpu 12 - 1 to
210
Program Execution Types
210
Initial Execution Type Programs
213
Scan Execution Type Program
216
Low-Speed Execution Type Program
218
Standby Type Program
225
Initial Processing
231
Refresh Processing of I/O Module
231
END Processing
232
Operation Processing of RUN, STOP, PAUSE, and STEP-RUN
233
Operation Processing for Instantaneous Power Failure
235
Data Clear Processing
236
13 Parameter List
238
14 Selecting Memory Card Models
249
Applications of Memory Cards
249
Selecting Memory Card Capacity
250
15 Hardware Specifications of Cpu Modules
252
Specifications
252
Part Names
253
Relationship between Switch Operations and Leds/Led Display
256
16 Power Supply Module
259
Specifications
259
Power Supply Module Specifications
259
Power Supply Module Selection
263
Fuse Specifications
265
Handling Precautions
266
Part Names
268
17 Base Unit and Extension Cable
273
Specifications of Base Units
273
Main Base Unit for High-Speed Access (A38HB/A38HBEU)
275
Extension Cable Specifications
276
Application Standards of Extension Base Units (A52B, A55B, A58B)
277
Handling Precautions
279
Part Names
280
Setting of Extension Stage Numbers
283
18 Memory Cards and Batteries
284
Memory Card Specifications
284
Handling Memory Cards
286
Battery Specifications (CPU Module and Memory Card Batteries)
287
Handling Precautions
288
Part Names of Memory Card
289
Installing Batteries (CPU Module and Memory Card Batteries)
290
Installing/Removing a Memory Card
291
19 Loading and Installation
293
Fail-Safe Circuit Concept
293
Installation Environment
299
Calculation of Heat Generated by the PLC
300
Installing the Base Units
302
Installation Precautions
302
Installation
303
Installation and Removal of Modules
304
Installation and Removal of the Dustproof Cover
307
Wiring
309
Wiring Instructions
309
Wiring to Module Terminals
314
Precautions When Connecting Uninterruptible Power Supply Module (UPS)
316
20 Emc and Low Voltage Directives
317
Requirements for Compliance with EMC Directives
317
EMC Standards
318
Installation Inside the Control Panel
319
Cables
320
Power Supply Module
325
Base Unit
325
Ferrite Core
326
Noise Filter (Power Supply Line Filter)
326
Requirements for Compliance with Low Voltage Directives
327
Standard Applied for MELSEC-Qna Series PLC
327
Precautions When Using the Qna Series PLC
327
Power Supply
328
Control Panel
329
Module Installation
330
Grounding
330
External Wiring
330
21 Maintenance and Inspection
331
Daily Inspection
331
Periodic Inspection
332
Battery Replacement
334
Battery Life
336
Battery Replacement Procedure
338
Fuse Replacement
342
Replacement of the Fuse for a Power Supply Module
342
Replacement of the Fuse for an Output Module
343
When Reoperating a PLC after Storing It with a Battery Unconnected
344
When a PLC Is Reoperated after Stored with the Battery over the Battery Life
345
22 Troubleshooting
346
Fundamentals of Troubleshooting
346
Troubleshooting Flowchart
347
Flow for Actions When the "POWER" LED Is Turned off
348
Flow for Actions When the "RUN" LED Is Turned off
349
When the "RUN" LED Is Flashing
350
Flow for Actions When the "ERROR LED" Is Turned On/Flashing
351
When the "USER" LED Is Turned on
352
When the "BAT.ARM" LED Is Turned on
352
Flow for Actions When the Output Module's Output Load Does Not Turn on
353
Flow for Actions When the Program Cannot be Written
354
Flow for Actions When Booting from a Memory Card Is Not Possible
356
Flow Chart Used When the CPU Module Is Not Started up
358
Error Code List
360
Error Codes
361
Procedure to Read an Error Code
361
Error Code List (1000 to 1999)
362
Error Code List (2000 to 2999)
367
Error Code List (3000 to 3999)
373
Error Code List (4000 to 4999)
377
Error Code List (5000 to 5999)
386
Error Code List (6000 to 6999)
387
Error Code List (7000 to 10000)
389
Canceling of Errors
390
Resetting Errors
391
Fault Examples with I/O Modules
392
Faults with the Input Circuit and the Corrective Actions
392
Faults in the Output Circuit
394
Appendices
398
Appendix 1 Instruction List
398
Appendix 1.1 Sequence Instructions
398
Appendix 1.2 Basic Instructions
402
Appendix 1.3 Application Instructions
414
Appendix 1.4 Data Link Instructions
435
Appendix 1.5 PID Control Instructions
438
Appendix 1.6 Special Function Module Instructions
439
APPENDIX 2 Special Relay List
445
APPENDIX 3 Special Register List
469
Appendix
507
Qnacpu
507
Appendix 4.1 Instructions
507
Appendix 4.2 Devices
515
Appendix 4.3 Parameters
517
Appendix 4.4 Timer and Interrupt Counter Operations
518
Appendix 4.5 Sequence Programs, Statements, Notes
519
Appendix 4.6 Microcomputer Programs
521
Appendix 4.7 Comments
522
Appendix 4.8 Constant Scan Function, Error Check Function
523
Appendix 4.9 I/O Control Mode
524
Appendix 4.10 Data Link System
525
Appendix 4.11 Index Register Processing
526
Appendix 4.12 CHK Instruction, IX Instruction
527
Appendix 4.13 Accessing File Register R with Instructions
528
Appendix 5.1 Error Codes
529
Error Codes Returned to the Request Source in General Data Processing
529
App
529
Appendix 6 External Dimensions
538
Appendix 6.1 CPU Module
538
Appendix 6.2 Power Supply Module
540
Appendix 6.3 Main Base Unit
542
Appendix 6.4 Extension Base Unit
544
Use of Local Device for Subroutine/Interrupt Program Storage File (Function Version B or Later)
546
Appendix 8 Network Relay from Ethernet Module
550
(Function Version B or Later)
550
APPENDIX 9 Qnacpu PROCESSING TIME
553
Appendix 9.1 Overview of Qnacpu Scan Time
553
Appendix 9.2 Causes of Increasing Scan Time
554
Appendix 10 Transportation Precautions
557
Appendix 10.1 Relevant Models
557
Appendix 10.2 Transportation Guidelines
558
APPENDIX 11 Handling of Batteries and Devices with Built-In Batteries in EU Member States
559
Appendix 11.1 Disposal Precautions
559
Appendix 11.2 Exportation Precautions
560
4
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Mitsubishi Q2ACPU Specifications
General
Brand
Mitsubishi
Model
Q2ACPU
Category
Controller
Language
English
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