Mitsubishi Electronics AJ61BT11, AJ61QBT11, A1SJ61BT11, A1SJ61QBT11 User Manual
• SAFETY PRECAUTIONS •
(Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully and pay full
attention to safety to handle the product correctly.
These precautions apply only to this product.
Refer to the user’s manual of the CPU module to use for a description of the programmable controller
system safety precautions.
In this manual, the safety precautions are classified into two levels: "
Under some circumstances, failure to observe the precautions given under " CAUTION" may lead to
serious consequences.
Observe the precautions of both levels because they are important for personal and system safety.
Make sure that the end users read this manual and then keep the manual in a safe place for future
reference.
[DESIGN PRECAUTIONS]
WARNING" and " CAUTION".
WARNING
• For the operating status of each station after a data link failure, refer to Chapter 5 in this manual.
• The master station or local station cannot detect errors when a station specified as an error-
invalidated station becomes communication error.
CAUTION
• Do not install the control lines or communication cables together with main circuit lines or power
cables. Keep distance of 100mm (3.9 inch) or more between them. Failure to do so may result in
malfunction due to noise.
[INSTALLATION PRECAUTIONS]
CAUTION
• Use the programmable controller in an environment that meets the specifications in the user’s
manual of the CPU module used. Failure to do so may result in electric shock, fire, malfunction,
or damage to or deterioration of the product.
A - 1
[INSTALLATION PRECAUTIONS]
CAUTION
• Insert the tabs at the bottom of the module into the holes in the base unit before mounting the
module. (For the Q2AS series modules, tighten the screws to the base unit with the specified
torque.)
Incorrect mounting may cause malfunction, failure, or drop of the module.
• Shut off the external power supply for the system in all phases before mounting or removing the
module.
Failure to do so may result in damage to the product.
• Do not directly touch any conductive part of the module.
Doing so can cause malfunction or failure of the module.
[WIRING PRECAUTIONS]
WARNING
• Shut off the external power supply for the system in all phases before wiring. Failure to do so
may result in electric shock or damage to the product.
• After wiring, attach the included terminal cover to the module before turning it on for operation.
Failure to do so may result in malfunction.
CAUTION
• Tighten the terminal screws within the specified torque range.
Undertightening can cause short circuit, fire, or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or
malfunction.
• Prevent foreign matter such as dust or wire chips from entering the module.
Such foreign matter can cause a fire, failure, or malfunction.
• Do not install the control lines or communication cables together with the main circuit lines or
power cables.
Doing so may cause malfunctions due to noise.
• Place the cables in a duct or clamp them.
If not, dangling cables may swing or inadvertently be pulled, resulting in damage to the module
or cables or malfunction due to poor contact.
• When disconnecting the cable from the module, do not pull the cable by the cable part. When
removing the cable with a connector, hold the connector on the side that is connected to the
module.
When removing the cable without a connector, loose the screws on the side that is connected to
the module.
Pulling the cable that is still connected to the module may result in damage to the module or
cable, or malfunction due to poor contact.
A - 2
[WIRING PRECAUTIONS]
CAUTION
• Use applicable solderless terminals and tighten them within the specified torque range.
If any spade solderless terminal is used, it may be disconnected when the terminal screw comes
loose, resulting in failure.
[STARTUP AND MAINTENANCE PRECAUTIONS]
WARNING
• Do not touch any terminal while power is on.
Doing so can cause electric shock.
• Shut off the external power supply for the system in all phases before cleaning the module or
retightening the terminal screws or module fixing screws.
Failure to do so may result in electric shock.
Undertightening can cause drop of screw, short circuit, or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or
malfunction.
CAUTION
• Do not disassemble or modify the modules.
Doing so may cause failure, malfunction, injury, or a fire.
• Shut off the external power supply for the system in all phases before mounting or removing the
module.
Failure to do so may cause the module to fail or malfunction.
• After the first use of the product, do not mount/remove the module to/from the base unit, and the
terminal block to/from the module more than 50 times (IEC61131-2 compliant) respectively.
Exceeding the limit of 50 times may cause malfunction.
• Before handling the module, touch a grounded metal object to discharge the static electricity
from the human body.
Failure to do so may cause the module to fail or malfunction.
[DISPOSAL PRECAUTIONS]
CAUTION
• When disposing of this product, treat it as industrial waste.
A - 3
• CONDITIONS OF USE FOR THE PRODUCT •
(1) Mitsubishi programmable controller ("the PRODUCT") shall be used in conditions;
i) where any problem, fault or failure occurring in the PRODUCT, if any, shall not lead to any major or
serious accident; and
ii) where the backup and fail-safe function are systematically or automatically provided outside of the
PRODUCT for the case of any problem, fault or failure occurring in the PRODUCT.
(2) The PRODUCT has been designed and manufactured for the purpose of being used in general
industries.
MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY (INCLUDING, BUT NOT LIMITED
TO ANY AND ALL RESPONSIBILITY OR LIABILITY BASED ON CONTRACT, WARRANTY, TORT,
PRODUCT LIABILITY) FOR ANY INJURY OR DEATH TO PERSONS OR LOSS OR DAMAGE TO
PROPERTY CAUSED BY the PRODUCT THAT ARE OPERATED OR USED IN APPLICATION NOT
INTENDED OR EXCLUDED BY INSTRUCTIONS, PRECAUTIONS, OR WARNING CONTAINED IN
MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY MANUALS, TECHNICAL BULLETINS AND
GUIDELINES FOR the PRODUCT.
("Prohibited Application")
Prohibited Applications include, but not limited to, the use of the PRODUCT in;
y Nuclear Power Plants and any other power plants operated by Power companies, and/or any other
cases in which the public could be affected if any problem or fault occurs in the PRODUCT.
y Railway companies or Public service purposes, and/or any other cases in which establishment of a
special quality assurance system is required by the Purchaser or End User.
y Aircraft or Aerospace, Medical applications, Train equipment, transport equipment such as Elevator
and Escalator, Incineration and Fuel devices, Vehicles, Manned transportation, Equipment for
Recreation and Amusement, and Safety devices, handling of Nuclear or Hazardous Materials or
Chemicals, Mining and Drilling, and/or other applications where there is a significant risk of injury to
the public or property.
Notwithstanding the above, restrictions Mitsubishi may in its sole discretion, authorize use of the
PRODUCT in one or more of the Prohibited Applications, provided that the usage of the PRODUCT is
limited only for the specific applications agreed to by Mitsubishi and provided further that no special
quality assurance or fail-safe, redundant or other safety features which exceed the general
specifications of the PRODUCTs are required. For details, please contact the Mitsubishi
representative in your region.
A - 4
REVISIONS
The manual number is noted at the lower left of the back cover.
Print Date Manual Number Revision
Nov. 1996 IB (NA)-66722-A First printing
Feb. 1997 IB (NA)-66722-B
Addition
Section 3.2.1, 4.12.3, 13.2
Correction
Chapter 1, Section 1.1, 3.2, 3.4, 8.3.2, 13.1, 13.5
Aug. 1997 IB (NA)-66722-C
Addition
Section 1.1, 5.3.4, 5.4, Chapter 14, 15, 16
Correction
Chapter 1, Section 1.4, 1.5, 2.1, 2.2, 2.2.3, 3.2, 3.2.1, 3.3, 4.1, 5.1, 7.1,
7.2.1, 7.3, 7.5, 7.6.1, 7.6.3, 7.6.4, 7.7.1, 7.7.2, 7.8
Jan. 1998 IB (NA)-66722-D
Additional model
Section 1.4, 2.2.3
Addition
Section 15.7
Correction
Section 1.1, 3.3, 3.4.1, 3.5.1, 3.5.2, 4.3, 4.4, 4.5, 5.2, 8.3.1, 13.3,
Chapter 14, 15.1, 15.2.1, 15.6, 15.6.4, 15.6.5, 16.2.3, App1.1, App1.2
Mar. 2000 IB (NA)-66722-E
Jul. 2000 IB (NA)-66722-F
Jul. 2001 IB (NA)-66722-G
Jul. 2003 IB (NA)-66722-H
Addition model
Section 2.2.3
Addition
Section 7.6, 7.6.1, 7.6.2, 15.8
Correction
SAFETY PRECAUTIONS, Section 1.1, 1.5, 3.3, 3.5.1, 5.1, 5.2, 5.4.3,
7.3, 7.5, 8.3.2, 10.2.2, 12.2.2, 13.1, 13.3, 13.4.4, Chapter 14,
Section 15.1, 15.2.1, 15.5.2, 15.5.4, 15.5.5, 15.6, 15.7, Chapter 16
Addition
Section 2.2.4, 3.2.2
Correction
Section 1.4, 2.2.1, 2.2.3, 3.2, 3.2.1, 3.4.2, 3.5.1, 7.3, 7.6.2, 7.7.3, 7.7.4,
8.3.1, 9.1.1, 10.1.1, 10.2.2, 11.1.1, 11.1.2, 12.1.1, 12.1.4, 15.2.1,
App1.1, App1.2
Addition
Section 8.2
Correction
Section 2.2.3, 3.4.1, 3.4.2, 4.12.1, 5.4, 5.4.1, 5.4.2, 5.4.3, 7.2.1, 7.3, 7.5,
8.4.2, 9.2.1, 10.2.1, 11.2.1, 12.2.1, 13.1, 13.3, 13.4.2, 13.4.3, Chapter 14,
Section 15.1, 15.2.1, 15.6, 15.8.1
Correction
SAFETY PRECAUTIONS, About This manual, Section 2.2.3, 3.1, 3.3,
3.4.2, 3.5.1, 7.9, 10.2.1, 13.3, 15.2, 15.3, 15.10.1 to 15.10.3, 15.11.1 to
15.11.3
A - 5
The manual number is noted at the lower left of the back cover.
Print Date Manual Number Revision
Apr. 2006 IB (NA)-66722-I
Addition
Conformation to the EMC Directive and Low Voltage Instruction,
Section 11.1
Correction
SAFETY PRECAUTIONS, Chapter 1, Section 2.2.2, 2.2.4, 3.2, 4.1, 4.8,
6.3, 7.5, 8.4.2, 11.3.2, 13.3
Sep. 2007 IB (NA)-66722-J
Correction
Section 1.4, 1.5, 2.1, 2.2.3, 3.5.2, 7.3, 8.4.1, 15.2.2, 15.7, App 1.2
Sep. 2009 IB (NA)-66722-K
"PLC" and "PC" were changed to "programmable controller".
Correction
SAFETY PRECAUTIONS, Compliance with the EMC and Low Voltage
Directives, Chapter 1, Section 1.5, 2.2.4, 3.1, 3.3, 3.4.2, 7.2.1, 7.3, 7.5,
7.6.2, 13.3, 15.2.1, App 2
Nov. 2012 IB (NA)-66722-L
Addition
CONDITIONS OF USE FOR THE PRODUCT
Correction
SAFETY PRECAUTIONS, Relevant Manuals, COMPLIANCE WITH EMC
AND LOW VOLTAGE DIRECTIVES, Chapter 1, Section 3.1, 3.5.1, 6.2,
7.3, 7.5, 7.7.3, 8.4.1, 8.4.2, 11.3.2, 13.3, 15.7
This manual does not imply guarantee or implementation right for industrial ownership or implementation of other rights.
Mitsubishi Electric Corporation is not responsible for industrial ownership problems caused by use of the contents of this
manual.
© 1996 Mitsubishi Electric Corporation
Japanese Manual Version SH-3604-M
A - 6
INTRODUCTION
Thank you for purchasing the MELSEC-QnA Series programmable controller.
Before using the product, please read this manual thoroughly to gain an understanding of its functions so you
can use it properly.
Please forward a copy of this manual to the end user.
CONTENTS
SAFETY PRECAUTIONS..............................................................................................................................A- 1
CONDITIONS OF USE FOR THE PRODUCT .............................................................................................A- 4
REVISIONS ....................................................................................................................................................A- 4
INTRODUCTION ...........................................................................................................................................A- 6
MANUAL.........................................................................................................................................................A-12
COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES ...............................................................A-12
1. OVERVIEW .....................................................................................................................................1- 1 to 1-15
1.1 How to Use This Manual......................................................................................................................... 1- 3
1.2 Characteristics......................................................................................................................................... 1- 4
1.3 Communication Overview....................................................................................................................... 1- 9
1.3.1 Communication between the master station and remote I/O station ............................................. 1- 9
1.3.2 Communication between the master station and remote device station ....................................... 1-10
1.3.3 Communication between the master station and local station .......................................................1-11
1.3.4 Compound system communication .................................................................................................1-12
1.4 Number of Occupied Stations and Station Number, Number of Modules and Number of Stations ....1-13
1.5 Generic Terms and Abbreviations.......................................................................................................... 1-14
2. SYSTEM CONFIGURATION..........................................................................................................2- 1 to 2- 8
2.1 Total Configuration .................................................................................................................................. 2- 1
2.2 Applicable System................................................................................................................................... 2- 2
2.2.1 Applicable CPU and number of modules that can be installed ...................................................... 2- 2
2.2.2 Precautions when configuring a system .......................................................................................... 2- 3
2.2.3 List of system equipment restricted by master/local module versions ........................................... 2- 6
2.2.4 About Ver. 1.10 ................................................................................................................................ 2- 7
3. SPECIFICATION.............................................................................................................................3- 1 to 3-37
3.1 General Specification .............................................................................................................................. 3- 1
3.2 Performance Specifications .................................................................................................................... 3- 2
3.2.1 Maximum overall cable distance (for Ver. 1.00).............................................................................. 3- 3
3.2.2 Maximum overall cable distance (for Ver. 1.10).............................................................................. 3- 5
3.3 CC-Link Dedicated Cable ....................................................................................................................... 3- 6
3.4 I/O Signals to the Programmable Controller CPU ................................................................................. 3- 7
3.4.1 I/O signal list ..................................................................................................................................... 3- 7
3.4.2 I/O signal details ............................................................................................................................... 3- 9
A - 7
3.5 Buffer Memory......................................................................................................................................... 3-19
3.5.1 Buffer memory list ............................................................................................................................ 3-19
3.5.2 Buffer memory details ...................................................................................................................... 3-21
4. FUNCTIONS....................................................................................................................................4- 1 to 4-30
4.1 Function List ............................................................................................................................................ 4- 1
4.2 Communication Between the Master Station and Remote I/O Station ................................................. 4- 3
4.3 Communication Between the Master Station and Remote Device Station........................................... 4- 5
4.4 Communication Between the Master Station and Local Station ........................................................... 4-10
4.5 Communication in Compound Systems ................................................................................................. 4-16
4.6 Reserved Station Function ..................................................................................................................... 4-22
4.7 Error Invalid Station Function ................................................................................................................. 4-23
4.8 Data Link Status Setting When the Master Station Programmable Controller CPU Has an Error ......4-24
4.9 Setting the Status of Input Data from a Data Link Faulty Station.......................................................... 4-25
4.10 Module Reset Function from a Sequence Program ............................................................................ 4-26
4.11 Data Link Stop/Restart .......................................................................................................................... 4-27
4.12 RAS Function ........................................................................................................................................ 4-28
4.12.1 Automatic return function ............................................................................................................... 4-28
4.12.2 Slave station cut-off function.......................................................................................................... 4-29
4.12.3 Station number overlap checking function .................................................................................... 4-30
5. DATA LINK PROCESSING TIME ..................................................................................................5- 1 to 5-24
5.1 Status of Each Station When an Error Has Occurred ...........................................................................5- 1
5.2 Link Scan Time ....................................................................................................................................... 5- 4
5.3 Transmission Delay Time ....................................................................................................................... 5- 5
5.3.1 Master station
5.3.2 Master station
5.3.3 Master station
5.3.4 Master station
remote I/O station................................................................................................ 5- 5
remote device station ..........................................................................................5- 7
local station.......................................................................................................... 5-11
intelligent device station ...................................................................................... 5-15
5.4 Dedicated Instruction Processing Time.................................................................................................. 5-16
5.4.1 Master station
5.4.2 Local station
5.4.3 Master station
local station ......................................................................................................... 5-16
local station............................................................................................................ 5-20
intelligent device station ..................................................................................... 5-22
6. PARAMETER SETTING.................................................................................................................6- 1 to 6-10
6.1 Procedure from Parameter Setting to Data Link Startup....................................................................... 6- 1
2
6.1.1 Relationship between buffer memory, E
PROM and internal memory.......................................... 6- 1
6.1.2 Procedure from parameter setting to data link start........................................................................ 6- 3
6.2 Parameter Settings ................................................................................................................................. 6- 4
6.3 Setting from a Sequence Program ......................................................................................................... 6- 5
7. DATA LINK PROCEDURE .............................................................................................................7- 1 to 7-24
7.1 Data Link Procedure ............................................................................................................................... 7- 1
7.2 Installation and Setting............................................................................................................................ 7- 2
7.2.1 Precautions when handling the module .......................................................................................... 7- 2
7.2.2 Setting environment ......................................................................................................................... 7- 3
A - 8
7.3 Name of Each Part and Settings ............................................................................................................ 7- 4
7.4 Checking Module Condition (Hardware Test) ........................................................................................ 7- 8
7.5 Module Wiring with CC-Link Dedicated Cable....................................................................................... 7-10
7.6 T-Branch Connection with the CC-Link Dedicated Cable ..................................................................... 7-11
7.6.1 T-Branch system configuration ........................................................................................................ 7-11
7.6.2 T-Branch communication specifications list .................................................................................... 7-12
7.7 Switch Settings ........................................................................................................................................ 7-14
7.7.1 Station number setting
(master station, local station, standby master station, and remote station) ................................... 7-14
7.7.2 Mode setting ..................................................................................................................................... 7-16
7.7.3 Transmission speed setting ............................................................................................................. 7-16
7.7.4 Condition setting............................................................................................................................... 7-17
7.8 Checking the Connection Condition (Line Test) ....................................................................................7-18
7.8.1 Checking connection and communication status with remote station/local station/standby master
station (line test 1) ............................................................................................................................ 7-18
7.8.2 Checking communication status with specific remote station/local station/standby master station
(line test 2) ........................................................................................................................................ 7-20
7.9 Checking Parameters (Parameter Confirmation Test) ..........................................................................7-22
8. PROGRAMMING ............................................................................................................................8- 1 to 8-22
8.1 Precautions When Programming ........................................................................................................... 8- 1
8.2 Precautions for Registering Parameters to E
2
PROM ........................................................................... 8- 3
8.2.1 Target module and versions ............................................................................................................8- 3
8.2.2 Precautions....................................................................................................................................... 8- 3
2
8.2.3 Program for registering parameters to E
PROM ............................................................................ 8- 4
8.3 Programming Procedure......................................................................................................................... 8- 6
8.3.1 Communication between the master station and remote I/O station ............................................. 8- 6
8.3.2 Communication between the master station and remote device station ....................................... 8- 7
8.3.3 Communication between the master station and local station ....................................................... 8- 8
8.3.4 Communication in a compound system ..........................................................................................8-10
8.4 Link Special Relay/Register (SB/SW) .................................................................................................... 8-12
8.4.1 Link special relay (SB) ..................................................................................................................... 8-12
8.4.2 Link special register (SW) ................................................................................................................ 8-16
9. COMMUNICATION BETWEEN THE MASTER STATION AND THE REMOTE
I/O STATION ...................................................................................................................................9- 1 to 9-12
9.1 System Configuration.............................................................................................................................. 9- 1
9.1.1 Setting of the master station ............................................................................................................ 9- 2
9.1.2 Setting of the remote I/O station ...................................................................................................... 9- 3
9.2 Creating a Program................................................................................................................................. 9- 4
9.2.1 Program for parameters................................................................................................................... 9- 4
9.2.2 Communication program.................................................................................................................. 9- 7
9.3 Performing the Data Link ........................................................................................................................ 9-10
9.3.1 Confirming the operation by LED display ........................................................................................ 9-10
9.3.2 Confirming the operation by the program ........................................................................................ 9-11
A - 9
10. COMMUNICATION BETWEEN THE MASTER STATION AND THE REMOTE
DEVICE STATION................................................................................................................... 10- 1 to 10-14
10.1 System Configuration.......................................................................................................................... 10- 1
10.1.1 Setting of the master station ........................................................................................................10- 2
10.1.2 Setting of the remote device station ............................................................................................10- 3
10.2 Creating a Program............................................................................................................................. 10- 4
10.2.1 Program for parameters............................................................................................................... 10- 4
10.2.2 Communication program ............................................................................................................. 10- 7
10.3 Performing the Data Link .................................................................................................................... 10-12
10.3.1 Confirming the operation by LED display.................................................................................... 10-12
10.3.2 Confirming the operation by the program.................................................................................... 10-13
11. COMMUNICATION BETWEEN THE MASTER STATION AND THE LOCAL STATION .... 11- 1 to 11-16
11.1 Secured 32-bit Data ............................................................................................................................ 11- 1
11.2 System Configuration.......................................................................................................................... 11- 2
11.2.1 Setting of the master station ........................................................................................................11- 3
11.2.2 Setting of the local station ............................................................................................................ 11- 4
11.3 Creating a Program............................................................................................................................. 11- 5
11.3.1 Program for the mater station ...................................................................................................... 11- 5
11.3.2 Local station program .................................................................................................................. 11-11
11.4 Performing the Data Link .................................................................................................................... 11-14
11.4.1 Confirming the operation by LED display.................................................................................... 11-14
11.4.2 Confirming the operation by the program.................................................................................... 11-15
12. COMMUNICATION IN THE COMPOUND SYSTEM ............................................................. 12- 1 to 12-16
12.1 System Configuration.......................................................................................................................... 12- 1
12.1.1 Setting of the master station ........................................................................................................12- 2
12.1.2 Setting of the remote I/O station .................................................................................................. 12- 3
12.1.3 Setting of the remote device station ............................................................................................12- 3
12.1.4 Setting of the local station ............................................................................................................ 12- 4
12.2 Creating a Program............................................................................................................................. 12- 5
12.2.1 Program for the master station ....................................................................................................12- 5
12.2.2 Local station program .................................................................................................................. 12-13
12.3 Performing the Data Link .................................................................................................................... 12-14
12.3.1 Confirming the operation by LED display.................................................................................... 12-14
12.3.2 Confirming the operation by the program.................................................................................... 12-16
A - 10
13. TROUBLESHOOTING............................................................................................................. 13- 1 to 13-18
13.1 Verification When a Trouble Occurs .................................................................................................. 13- 1
13.2 Troubleshooting When the "ERR" LED on the Master Station Is Flashing....................................... 13- 4
13.3 Error Codes ......................................................................................................................................... 13- 6
13.4 LED Display Status ............................................................................................................................. 13-12
13.4.1 When data link is normal.............................................................................................................. 13-12
13.4.2 When a cable is disconnected ..................................................................................................... 13-12
13.4.3 When a cable is shorted .............................................................................................................. 13-13
13.4.4 When the link is stopped at the master station ........................................................................... 13-13
13.4.5 When power supply to a remote I/O station is turned off............................................................ 13-14
13.4.6 When the power supply to a remote device station is turned off................................................ 13-14
13.4.7 When the power supply to the local station (programmable controller CPU) is turned off........ 13-15
13.4.8 When the station numbers are duplicate..................................................................................... 13-15
13.4.9 When the transmission speed is set incorrectly.......................................................................... 13-16
13.4.10 When the switch setting is changed during data link ................................................................ 13-16
13.4.11 When data link is started with the switch set outside the range ............................................... 13-17
13.4.12 When the remote I/O station is not set by the parameter (i.e., is set as reserved) ................. 13-17
13.4.13 When the remote device station is not set by the parameter (i.e., is set as reserved) ............ 13-18
13.4.14 When the local station is not set by the parameter (i.e., is set as reserved) ........................... 13-18
14. OVERVIEW (FUNCTION VERSION B OR LATER) .............................................................. 14- 1 to 14- 2
15. FUNCTIONS (FUNCTION VERSION B OR LATER) ............................................................. 15- 1 to 15-20
15.1 List of Functions .................................................................................................................................. 15- 1
15.2 Parameter Registration Function........................................................................................................ 15- 1
15.2.1 Network parameters..................................................................................................................... 15- 2
15.2.2 Automatic refresh parameters .....................................................................................................15- 3
15.3 Automatic Refresh Function ...............................................................................................................15- 3
15.4 Scan Synchronous Function............................................................................................................... 15- 4
15.4.1 Synchronous mode ......................................................................................................................15- 4
15.4.2 Asynchronous mode .................................................................................................................... 15- 5
15.5 Standby Master Function.................................................................................................................... 15- 6
15.5.1 Operation overview ......................................................................................................................15- 6
15.5.2 Settings on using the standby master function ...........................................................................15- 7
15.5.3 Link special relays/registers (SB, SW) relating to the standby master function ........................ 15- 8
15.5.4 Notes on using the standby master function ............................................................................... 15- 9
15.5.5 Program example on using the standby master function ...........................................................15-10
15.6 Dedicated Instructions ........................................................................................................................ 15-11
15.7 Communication Instructions (Software Version J and Later) ............................................................ 15-12
15.8 Remote I/O Net Mode ......................................................................................................................... 15-13
15.8.1 Features ....................................................................................................................................... 15-13
15.8.2 Software version corresponding to master module and its CPU................................................ 15-13
15.8.3 Set item......................................................................................................................................... 15-13
15.8.4 Link scan time .............................................................................................................................. 15-14
15.8.5 Precautions................................................................................................................................... 15-14
A - 11
15.9 Temporary Error Invalid Station Specification Function ....................................................................15-15
15.9.1 I/O status of the temporary error invalid station specification..................................................... 15-15
15.9.2 Link special relays/registers (SB, SW) relating to the temporary error invalid station
specification function .................................................................................................................... 15-15
15.9.3 Execution procedure for the temporary error invalid station specification function ................... 15-17
15.10 Online Test Function ......................................................................................................................... 15-18
15.10.1 Parameter test............................................................................................................................ 15-18
15.10.2 Line test ...................................................................................................................................... 15-18
15.10.3 Network test ............................................................................................................................... 15-18
15.11 Monitor/Diagnosis Functions ............................................................................................................ 15-19
15.11.1 Line monitor (host station) .........................................................................................................15-19
15.11.2 Line monitor (other stations) ...................................................................................................... 15-19
15.11.3 Device monitor ........................................................................................................................... 15-20
16. COMMUNICATION WITH INTELLIGENT DEVICES
(FUNCTION VERSION B OR LATER) ................................................................................... 16- 1 to 16- 2
APPENDICES ...........................................................................................................................APP- 1 to APP- 5
Appendix 1 External Dimensions.............................................................................................................APP- 1
Appendix 1.1 AJ61QBT11 ...................................................................................................................APP- 1
Appendix 1.2 A1SJ61QBT11 ...............................................................................................................APP- 2
Appendix 2 Parameter Setting Sheet ......................................................................................................APP- 3
A - 12
MANUAL
Relevant Manuals
The following manuals are to this product.
Order as needed, referring to the table below.
Manual Name
SW2IVD/NX-GPPQ GPP Function Software Package Operating Manual (Offline Version)
Describes the offline function of program creation method, print out method and file
maintenance, etc. on the SW2NX-GPPQ/SW2IVD-GPPQ.
(Same package)
SW2IVD/NX-GPPQ GPP Function Software Package Operating Manual (Online Version)
Describes the online function of monitor method and debugging method, etc. on the
SW2IVD-GPPQ/SW2NX-GPPQ.
(Same package)
GX Developer Version 8 Operating Manual
Explains the functions of GX Developer, such as the programming, printout, monitoring and
debugging methods.
(Sold separately)
QnACPU Programming Manual (Common Instructions)
Describes how to use sequence instructions, basic instructions and application instructions.
(Sold separately)
QnACPU PROGRAMMING MANUAL (Special Functions)
Describes dedicated instructions used in the Q2ACPU(S1), Q3ACPU, and Q4ACPU specialfunction modules.
(Sold separately)
COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES
Manual No.
(Model code)
IB-66775
(13J922)
IB-66774
(13J921)
SH-080373E
(13JU41)
SH-080810ENG
(13JW11)
IB-66616
(13JF48)
(1) For programmable controller system
To ensure that Mitsubishi programmable controllers maintain EMC and Low
Voltage Directives when incorporated into other machinery or equipment, certain
measures may be necessary. Please refer to one of the following manuals.
• User's manual for the CPU module used
• User's manual (hardware) for the CPU module or base unit used
(2) For the product
To ensure that this product maintains EMC and Low Voltage Directives, please
refer to one of the manuals listed under (1).
A - 13
MEMO
A - 14
1 OVERVIEW
1. OVERVIEW
MELSEC-QnA
The CC-Link system is a system that connects distributed modules such as I/O
1
modules, intelligent function modules, and special function modules using dedicated
cables so that these modules can be controlled by a programmable controller CPU.
This chapter describes outline of the CC-Link.
1
By distributing each module to the equipment device such as the conveyor line and
machine devices, the wiring conservation of the entire system can be accomplished.
2
Simple, high-speed communication can be accomplished with modules that handle
on/off data such as I/O or numeric data.
3
By connecting multiple programmable controller CPUs, a simple distributed system
can be configured.
4
Connections can be made to different types of devices made by partner
manufacturers, giving flexibility to the system.
Master station
Programmable
controller CPU
Remote I/O station
Partner manufacturer's
product
Remote device station
CC - Link system
Remote I/O station
Programmable
controller CPU
Local station
Master station................... Station which controls the remote I/O station, remote device
station, and local stations
Remote I/O station ...........Remote station which handles only on/off data
Remote device station .....Remote station which handles both on/off data and numeric
data
Local station .....................Station which has a CPU and can communicate with the
master station and other local stations
1 - 1
1 OVERVIEW
AJ61QBT11 CC-Link System Master/Local
Module
(discontinued on September 2008)
A1SJ61QBT11 CC-Link system
Master/Local Module
MELSEC-QnA
When applying any of the program examples to the actual system, examine the
applicability and confirm that it will not cause system control problems.
After unpacking, please check that the following components are included.
Product name Quantity
AJ61QBT11 1
AJ61QBT11 CC-Link System Master/Local
Module User's Manual (Hardware)
Terminating resistor (110 Ω, 1/2 W)
(All brown)
Terminating resistor (130 Ω, 1/2 W)
(brown, orange, brown)
A1SJ61QBT11 1
A1SJ61QBT11 CC-Link System
Master/Local Module User's Manual
(Hardware)
Terminating resistor (110 Ω, 1/2 W)
(All brown)
Terminating resistor (130 Ω, 1/2 W)
(brown, orange, brown)
1
2
2
1
2
2
1 - 2
1 OVERVIEW
1.1 How to Use This Manual
The master/local module has the following functions added from the function version B
or later. The detailed descriptions of the additional functions are provided in Chapter 14
or later.
(1) Scan synchronous function
Link scan can be executed synchronized with the sequence scan.
(2) Standby master function
With this function, the data link can be continuously executed even if an error
occurs in the master station, by automatically switching to the standby master
station.
(3) Dedicated instructions
Transient transmission with the intelligent device and local station is possible.
In addition, read/write of data with handshake to/from the remote device is
feasible.
(4) Temporary error invalid station specification function
By specifying the corresponding remote station as a temporary error invalid
station, an error is not detected even if the module is replaced while in
communication.
(5) Parameter registration function
Parameters such as total number of connected stations and station information
can be set using dedicated instructions.
(6) Automatic refresh function
Data transferred by cyclic transmissions, such as RX and RY, can be refreshed
by the END processing to a desired device, when set up with the dedicated
instruction.
(7) Monitor/diagnosis function
Monitoring and diagnosing can be performed from a peripheral device.
(8) Online test function
Line testing and control of link such as starting up and stopping can be
performed from a peripheral device.
(9) Communication instruction (software version J manufactured in
Jan., 1998 or later)
Data communication with other stations is possible. Data read/write with other
stations is also possible.
(10) Dedicated instruction (software version J manufactured in Jan.,
1998 or later)
Device read/write with respect to the CPU of the specified station are possible.
(11) Remote I/O net mode (software version P manufactured in Sep.,
1998 or later)
When the system is configured only with the master station and the remote I/O
stations, the setting of the network parameters is eliminated and the link
scanning time is shortened by the use of the remote I/O net mode.
1 - 3
MELSEC-QnA
1 OVERVIEW
1.2 Characteristics
MELSEC-QnA
The characteristics of the CC-Link are described below:
(1) Remote I/O station communication
The communication is performed with only on/off data (remote input RX and
remote output RY).
Master station
Remote I/O station
A/D conversion
completion flag
Offset·gain selection
A/D conversion
enable/disable specification
TO
Remote input
(RX)
Remote output
(RY)
Link scan
Link scan
Input
Output
(2) Remote device station communication
The communication is performed with on/off data (remote input RX and remote
output RY) and numeric data (remote register).
Master station
Remote input
(RX)
Remote output
(RY)
Remote register
(RWw)
Link scan
Link scan
Link scan
Remote device station
Remote input
(RX)
Remote output
(RY)
Remote register
(RWw)
Analog voltage
Digital output value
FROM
Remote register
(RWr)
Link scan
1 - 4
Remote register
(RWr)
1 OVERVIEW
Master station
MELSEC-QnA
(3) Local station communication
The data communication between programmable controller CPUs can be
performed in N:N relationship with bit data (remote input RX and remote output
RY) and word data (remote register)
Local station
Local station
Remote input (RX)
Remote output (RY)
Remote register (RWw)
Remote register (RWr)
Link scan
Link scan
Link scan
Link scan
Remote output (RY)
Link scan
Remote input (RX)
Link scan
Remote register (RWr)
Link scan
Remote register (RWw)
Link scan
Remote output (RY)
Remote input (RX)
Remote register (RWr)
Remote register (RWw)
(4) Establishing high-speed transmission
When the transmission speed of 10Mbps is set, the link scan time
(communication time with the master station and remote station/local station) is
still at high speed, even when the maximum 64 stations are connected.
• Remote I/O (RX, RY) 2048 points ..................................................... 4 ms
• Remote I/O (RX, RY) 2048 points
+ remote register (RWw, RWr) 512 points ................ 7 ms
(5) System configurations are possible, according to requirements.
(a) Transmission distance
The total extended distance depends on the transmission speed, but
connections can be made between 100 m (at 10 Mbps) and 1.2 km (at 156
kbps).
(b) Number of connected stations
A maximum of 64 stations, including remote I/O stations, remote device
stations, and local stations can be connected to one master station.
Up to 64 remote I/O stations, 42 remote device stations, and 26 local
stations can be connected. (Refer to Section 2.1.)
1 - 5
1 OVERVIEW
MELSEC-QnA
(6) Link points
2048 points of remote input (RX), 2048 points of remote output (RY), and 512
points of remote register (RW) can be used for communication in one system.
For one remote station or local station, 32 points of remote input (RX), 32 points
of remote output (RY), and 8 points of remote register (RW) (RWw: 4 points,
RWr: 4 points) can be handled.
(7) System down prevention (Station cutoff function)
Because the system employs the bus method, even if there is a remote station or
local station which goes down due to power off, etc., it won't affect the
communication with other functioning remote/local stations.
Also, for the module using with the 2-piece terminal block, the module can be
replaced during data link.
Station No.4
Station No.7
Master
station
Master
station
Station No.1
Remote station
(occupies 2 stations)
Faulty
station
Station No.1
Remote station
(occupies 2 stations)
Station No.3
Remote station
(occupies 1 station)
Station No.3
Remote station
(occupies 1 station)
Local station
(occupies 1
station)
Data link continues
Station No.4
Local station
(occupies 1
station)
Station No.5
Remote station
(occupies 2 stations)
Station No.5
Remote station
(occupies 2 stations)
Local station
(occupies 4
stations)
Station No.7
Local station
(occupies 4
stations)
1 - 6
1 OVERVIEW
MELSEC-QnA
(8) Reserved station function
By setting the station which is not actually connected (station planned for
connection in the future) as a reserved station, the station will not be handled as
a faulty station.
Station planned for
connection in the future
(Reserved station)
Station No.4
Master
station
Station No.1
Remote station
(occupies 2 stations)
Station No.3
Remote station
(occupies 1 station)
Local station
(occupies 4
stations)
Station No.8
Remote station
(occupies 1 station)
(Reserved station)
Station No.9
Remote station
(occupies 1 station)
(9) Error invalid station function
A station that cannot perform data links because the power is turned off, etc., can
be handled as other than a "data-link faulty station" on the master station and the
local station.
Be careful, however, for errors will not be detected.
Stations to be set as error invalid stations
Station No.4
Master
station
Station No.1
Remote station
(occupies 2 stations)
Station No.3
Remote station
(occupies 1 station)
Local station
(occupies 1
station)
Station No.5
Remote station
(occupies 2 stations)
Station No.7
Local station
(occupies 4
stations)
Master
station
Does not result as a data-link faulty
station.
Station No.1
Remote station
(occupies 2 stations)
Station No.3
Remote station
(occupies 1 station)
1 - 7
Station No.4
Local station
(occupies 1
station)
Station No.5
Remote station
(occupies 2 stations)
Station No.7
Local station
(occupies 4
stations)
1 OVERVIEW
Programmable controller CPU Master station
MELSEC-QnA
(10) Parameter registration to the E2PROM
By registering the parameters to the E2PROM, the parameter settings do not
have to be performed at each master station startup (power off
Because this is the E
is turned off.
2
PROM, parameters are stored even if the module's power
on).
2
SET YnA
1
TO
SET Yn8
Buffer memory
Parameter
information area
The data link is executed using the parameters
registered in the internal memory.
2
EPROM
3
Internal memory
(11) Data-link status setting for when a master station programmable
controller CPU error occurs
The data-link status can be set (stop/continue) to either stop or continue for when
a "operation stop error" occurs at the master station's programmable controller
CPU, such as SP. UNIT ERROR.
The data link between local stations can be continued.
"Operation continue errors" such as a BATTERY ERROR continue the data link
regardless of the setting.
(12) Input data from data-link faulty station status setting
The data input (received) from the data-link faulty station can be cleared or kept
(status right before an error is caused).
(13) Module reset function from the sequence program
When the switch setting is changed or an error occurs in the module, the module
can be reset from the sequence program without resetting the programmable
controller CPU.
(This excludes when the module has a module faulty (Xn0 is on).)
(14) RAS function
(a) Automatic return function
When a station is disconnected from the link due to power off, etc., and
returns to the normal status, the station can join the data link again
automatically.
(b) Link status check
Using the link special relay (SB) and link special register (SW) in the buffer
memory, the current data-link status can be checked.
(c) Diagnosis function
Using the switch setting, the hardware and cable conditions can be
checked.
1 - 8
1 OVERVIEW
1.3 Communication Overview
1.3.1 Communication between the master station and remote I/O station
The overview of the communication between the master station and remote I/O station
is described below.
Refer to Section 4.2 for details.
Programmable controller CPU
Master station
MELSEC-QnA
Remote I/O station
FROM
TO
SET Yn0
SET Yn6
1
2
4
5
Refresh instruction
Data link startup
Buffer memory
Remote input
(RX)
Remote output
(RY)
3
Link scan
6
Link scan
Input
Output
1
Turn on the refresh instruction.
2
Startup the data link.
3
By the link scan, the remote I/O station's input information is stored in the master
station's remote input (RX).
4
By the FROM instruction, read from the remote input (RX).
5
By the TO instruction, write the on/off data to the remote output (RY).
6
By the link scan, the remote I/O station's output is turned on/off.
1 - 9
1 OVERVIEW
1.3.2 Communication between the master station and remote device station
The overview of the communication between the master station and remote device
station is described below.
Refer to Section 4.3 for details.
Programmable controller CPU
Master station
Remote device station
MELSEC-QnA
FROM
TO
TO
SET Yn0
SET Yn6
1
2
4
5
7
Refresh instruction
Data-link startup
Buffer memory
Remote input
(RX)
Remote output
(RY)
Remote register
(RWw)
3
Link scan
6
Link scan
8
Link scan
Remote input
(RX)
Remote output
(RY)
Remote register
(RWw)
9
Link scan
Remote register
(RWr)
FROM
10
Remote register
(RWr)
1
Turn on the refresh instruction.
2
Startup the data link.
3
By the link scan, the remote device station's remote input (RX) is stored in the
master station's remote input (RX).
4
By the FROM instruction, read data from the remote input (RX).
5
By the TO instruction, write data to the remote output (RY).
6
By the link scan, the remote device station's remote output (RY) is turned on/off.
7
By the TO instruction, write data to the remote register (RWw).
8
By the link scan, the data is sent to the remote device station's remote register
(RWw).
9
By the link scan, the remote device station's remote register (RWr) is sent to the
master station's remote register (RWr).
10
By the TO instruction, read data from the remote register (RWr).
1 - 10
1 OVERVIEW
1.3.3 Communication between the master station and local station
The overview of the communication between the master station and local station is
described below.
Refer to Section 4.4 for details.
Master station
Local station
MELSEC-QnA
Local station
1
Refresh instruction
2
Data link startup
Buffer memory
Remote input (RX)
Remote output (RY)
Remote register (RWw)
Remote register (RWr)
3
Link scan
4
Link scan
5
Link scan
6
Link scan
1
Refresh instruction
Buffer memory
Remote output (RY)
Remote input (RX)
Remote register (RWr)
Remote register (RWw)
3
Link scan
4
Link scan
5
Link scan
6
Link scan
1
Refresh instruction
Buffer memory
Remote output (RY)
Remote input (RX)
Remote register (RWr)
Remote register (RWw)
1
Turn on the refresh instruction.
2
Startup the data link.
3
By the link scan, the data in the local station's remote output (RY) is sent to the
master station's remote input (RX) and other local stations' remote output (RY).
4
By the link scan, the data in the master station's remote output (RY) is sent to all
local station's remote input (RY).
5
By the link scan, the data in the master station's remote register (RWw) is sent to all
local stations' remote register (RWr).
6
By the link scan, the data in the local station's remote register (RWw) is sent to the
master station's remote register (RWr) and other local stations' remote register
(RWw).
1 - 11
1 OVERVIEW
1.3.4 Compound system communication
The overview of compound system communication with remote I/O stations, remote
device stations, and local stations is described below.
Refer to Section 4.5 for details.
Master station
Remote I/O station
Remote device station
MELSEC-QnA
Local station
1
Refresh instruction
2
Data link startup
Buffer memory
Remote input (RX)
Remote output (RY)
Remote register (RWw)
Remote register (RWr)
3 3 3
4 4 4
5 5 5
6 6 6
Input
Remote input (RX)
Output
Remote output (RY)
Remote register (RWw)
Remote register (RWr)
1
Refresh instruction
Buffer memory
Remote output (RY)
Remote input (RX)
Remote register (RWr)
Remote register (RWw)
1
Turn on the refresh instruction.
2
Startup the data link.
3
By the link scan, data in the remote I/O station's and remote device station's remote
input (RX) and local station's remote output (RY) is sent to the master station's
remote input (RX) and local station's remote output (RY).
4
By the link scan, data in the master station's remote output (RY) is sent to the
remote I/O station's and remote device station's remote output (RY) and local
station's remote input (RX).
5
By the link scan, data in the master station's remote register (RWw) is sent to the
remote device station's remote register (RWw) and local station's remote register
(RWr).
6
By the link scan, data in the remote device station's remote register (RWr) and local
station's remote register (RWw) is sent to the master station's remote register (RWr)
and local station's remote register (RWw).
1 - 12
1 OVERVIEW
MELSEC-QnA
1.4 Number of Occupied Stations and Station Number, Number of Modules and Number of Stations
The relationship between number of occupied station and station number, and
between number of modules and number of stations is described below.
(1) Number of occupied stations
The number of occupied stations is fixed for each module (remote I/O station,
remote device station, and local station).
However, the number of occupied stations can be set (1 to 4 stations
) for local
stations.
Module Number of occupied stations
Remote I/O station (16 points and 32 points module) 1 station
AJ65BT-64AD 2 stations
AJ65BT-64DAV 2 stations
Remote device station
Local station 1 to 4 stations (changed by switch)
Intelligent device station
The AJ61QBT11 of hardware version F or later and the A1SJ61QBT11 of hardware version G or later are
compatible with this setting. For other than the above, the setting is 1 or 4 stations only.
AJ65BT-64DAI 2 stations
AJ65BT-D62
AJ65BT-D62D (S1)
A852GOT 2 or 4 stations
AJ65BT-R2(N) 1 station
AJ65BT-G4 1 station
AJ65BT-D75P2-S3 4 stations
4 stations
(2) Station number
When the number of occupied station for all connected stations is set to "1
station," the station number is set continuously from 1 (e.g. 1, 2, 3,... ).
However, when a station which occupies more than 2 stations is connected, the
setting must be performed considering the number of occupied stations.
Station No.5 Station No.6Station No.7 Station No.8 Station No.9Station No.4Station No.3Station No.2Station No.1
Master
station
Station No.1
Remote station
(occupies 2 stations)
Station No.3
Remote station
(occupies 1 station)
Station No.4
Local station
(occupies 4
stations)
Station No.8
Remote station
(occupies 1 station)
Station No.9
Local station
(occupies 1
station)
(3) Number of modules and number of stations
Number of modules is a physical module count.
Number of stations is a number of occupied stations for each module as stated in
(1).
In the system configuration example in (2), the number of modules is 5 and
number of stations is 9.
1 - 13
1 OVERVIEW
MELSEC-QnA
1.5 Generic Terms and Abbreviations
Generic terms and abbreviations used in this manual are shown below.
Generic Term/Abbreviation
AJ61QBT11 Abbreviation for the AJ61QBT11 CC-Link System Master/Local Module.
A1SJ61QBT11 Abbreviation for the A1SJ61QBT11 CC-Link System Master/Local Module.
Master station
Local station
Remote I/O station
Remote device station
Remote station Generic term for remote I/O station and remote device station. (Controlled by a master station)
Intelligent device station Station that can perform transient transmission, such as the AJ65BT-R2(N) (Including local station).
Standby master station
Slave station
Master/local module Generic term for the AJ61QBT11, and A1SJ61QBT11.
Master module Generic term for the AJ61QBT11, and A1SJ61QBT11 when they are used as master station.
Local module Generic term for the AJ61QBT11, and A1SJ61QBT11 when they are used as local station.
Remote module
AJ65BT-R2(N) Generic term for AJ65BT-R2 and AJ65BT-R2N.
Intelligent device module Module that can perform transient transmission, such as AJ65BT-R2(N) (including local module).
Remote I/O net mode Dedicated mode for sending and receiving data to and from the remote I/O station at high speed.
Remote net mode
Cycric transmission
Transient transmission
AnSCPU
AnCPU Generic term for the A1CPU, A2CPU, A2CPUS1, and A3CPU.
AnNCPU Generic term for the A1NCPU, A2NCPU, A2NCPUS1, and A3NCPU.
AnACPU Generic term for the A2ACPU, A2ACPUS1, and A3ACPU.
A2USCPU Generic term for the A2USCPU and A2USCPUS1.
AnUCPU Generic term for the A2UCPU, A2UCPUS1, A3UPU, and A4UCPU.
Q2ASCPU Generic term for the Q2ASCPU, Q2ASCPUS1, Q2ASHCPU, and Q2ASHCPUS1.
QnACPU Generic term for the Q2ACPU, Q2ACPUS1, Q3ACPU, and Q4ACPU.
SB
SW
RX
RY
Station that controls the data link system.
One master station is required for each system.
Station having a programmable controller CPU and the ability to communicate with the master and other
local stations.
Remote station that handles bit unit data only. (Performs input and output with external devices.)
(AJ65BTB1-16D, AJ65SBTB1-16D)
Remote station that handles bit unit and word unit data only. (Performs input and output with external
devices, and analog data conversion.)
(AJ65BT-64AD, AJ65BT-64DAV, AJ65BT-64DAI)
Backup station for data link control when the link to the master station is disconnected due to a
programmable controller CPU or power supply problem.
Generic term for the remote I/O station, remote device station, local station, intelligent device station and
standby master station.
Generic term for the AJ65BTB1-16D, AJ65SBTB1-16D, AJ65BT-64AD, AJ65BT-64DAV, AJ65BT-64DAI,
and A852GOT.
Mode that can communicate with all stations used for CC-Link (remote I/O station, remote device station,
local station, intelligent device station, and standby master station)
Transmission method by which to periodically communicate the contents of remote I/O, and remote
registers.
Transmission method with which the counterpart is specified and 1:1 communication is used at an
arbitrary timing.
Generic term for the A1SCPU, A1SCPU-S1, A1SJCPU, A1SJCPU-S3, A2SCPU, A2SCPU-S1, and
A1SCPUC24-R2.
Link special relay (for CC-Link)
Bit unit information that indicates the module operating status and data link status of the master
station/local station.
Link special register (for CC-Link)
16-bit unit information that indicates the module operating status and data link status of the master
station/local station.
Remote input (for CC-Link)
Information entered in bit units from the slave stations to the master station.
Remote output (for CC-Link)
Information output in bit units from the master station to the slave station
Description
1 - 14
Loading...