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.

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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.

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.

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

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

PROM ........................................................................... 8- 3

8.2.1 Target module and versions ............................................................................................................8- 3

8.2.2 Precautions....................................................................................................................................... 8- 3

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

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.

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.

Simple, high-speed communication can be accomplished with modules that handle

on/off data such as I/O or numeric data.

By connecting multiple programmable controller CPUs, a simple distributed system

can be configured.

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

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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)

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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.

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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

Remote input

(RX)

Remote output

(RY)

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

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

Remote input (RX)

Remote output (RY)

Remote register (RWw)

Remote register (RWr)

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.)

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1 OVERVIEW

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(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

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)

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1 OVERVIEW

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(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.

PROM, parameters are stored even if the module's power

on).

SET YnA

SET Yn8

Buffer memory

Parameter

information area

The data link is executed using the parameters registered in the internal memory.

EPROM

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.

Using the switch setting, the hardware and cable conditions can be checked.

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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

SET Yn0

SET Yn6

Refresh instruction

Data link startup

Buffer memory

Remote input

(RX)

Remote output

(RY)

Link scan

Input

Output

Turn on the refresh instruction.

Startup the data link.

By the link scan, the remote I/O station's input information is stored in the master

station's remote input (RX).

By the FROM instruction, read from the remote input (RX).

By the TO instruction, write the on/off data to the remote output (RY).

By the link scan, the remote I/O station's output is turned on/off.

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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

SET Yn0

SET Yn6

Refresh instruction

Data-link startup

Buffer memory

Remote input

(RX)

Remote output

(RY)

Remote register

(RWw)

Link scan

Remote input

(RX)

Remote output

(RY)

Remote register

(RWw)

Link scan

Remote register

(RWr)

FROM

Remote register

(RWr)

Turn on the refresh instruction.

Startup the data link.

By the link scan, the remote device station's remote input (RX) is stored in the

master station's remote input (RX).

By the FROM instruction, read data from the remote input (RX).

By the TO instruction, write data to the remote output (RY).

By the link scan, the remote device station's remote output (RY) is turned on/off.

By the TO instruction, write data to the remote register (RWw).

By the link scan, the data is sent to the remote device station's remote register

(RWw).

By the link scan, the remote device station's remote register (RWr) is sent to the

master station's remote register (RWr).

By the TO instruction, read data from the remote register (RWr).

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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

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Local station

Refresh instruction

Data link startup

Buffer memory

Remote input (RX)

Remote output (RY)

Remote register (RWw)

Remote register (RWr)

Link scan

Refresh instruction

Buffer memory

Remote output (RY)

Remote input (RX)

Remote register (RWr)

Remote register (RWw)

Link scan

Refresh instruction

Buffer memory

Remote output (RY)

Remote input (RX)

Remote register (RWr)

Remote register (RWw)

Turn on the refresh instruction.

Startup the data link.

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).

By the link scan, the data in the master station's remote output (RY) is sent to all

local station's remote input (RY).

By the link scan, the data in the master station's remote register (RWw) is sent to all

local stations' remote register (RWr).

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).

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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

Refresh instruction

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)

Refresh instruction

Buffer memory

Remote output (RY)

Remote input (RX)

Remote register (RWr)

Remote register (RWw)

Turn on the refresh instruction.

Startup the data link.

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).

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).

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).

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).

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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.

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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.

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

1 OVERVIEW

Generic Term/Abbreviation

RWw

RWr

Description

Remote register (Write area for CC-Link) Information output in 16-bit units from the master station to the slave station. Remote register (Read area for CC-Link) Information entered in 16-bit units from the slave station to the master station.

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2 SYSTEM CONFIGURATION

2. SYSTEM CONFIGURATION

MELSEC-QnA

2.1 Total Configuration

Master station

The system configuration for the CC-Link is described in this chapter.

A total of 64 remote I/O stations, remote device stations, or local stations can be connected for one master station. However, the following conditions must be satisfied:

(1) {(1×a)+(2×b)+(3×c)+(4×d)} 64

a : Number of modules occupying 1 station c : Number of modules occupying 3 stations b : Number of modules occupying 2 stations d : Number of modules occupying 4 stations

(2) {(16×A)+(54×B)+(88×C)} 2304

A : Number of remote I/O stations 64 B : Number of remote device stations 42 C : Number of local stations, standby master stations, intelligent device stations 26

Maximum 26

Local station Local station

A1SJ61QBT11

AJ61QBT11

A1SJ61BT11

AJ61BT11

A1SJ61QBT11

AJ61QBT11

Terminating resistor

(mandatory)

Maximum 42Maximum 26

CC-Link dedicated cable

Maximum 64

Remote I/O stationRemote device stationIntelligent device station

RS-232C

Interface module

AJ65BT-R2N

Analog-digital

conversion module

AJ65BT-64AD

Remote I/O module

AJ65BTB - AJ65BTC -

Terminating resistor

(mandatory)

CC-Link dedicated cable

Total 64

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2 SYSTEM CONFIGURATION

2.2 Applicable System

The applicable CPU modules and the precautions for system configuration are described below.

2.2.1 Applicable CPU and number of modules that can be installed

The applicable programmable controller CPU, data link system/network system, and the number of modules that can be installed are shown in Table 2.1. However, intelligent mode cannot be used for future plan.

Programmable controller CPU

Data link and

network

Table 2.1 Number of modules that can be installed

Installation area A1SJ61QBT11 AJ61QBT11

A0J2CPU A0J2HCPU A1SCPU (S1) A1SHCPU A1SJCPU (S3) A1SJHCPU (S8) A1SCPUC24-R2 A2SCPU (S1) A2SHCPU (S1) A2ASCPU (S1/S30) A2USHCPU-S1 Q2ASCPU (S1) Q2ASHCPU (S1) A1CPU A2CPU (S1) A3CPU A1NCPU A2NCPU (S1) A3NCPU A3MCPU A3HCPU A2ACPU (S1) A3ACPU A2UCPU (S1) A3UCPU A4UCPU Q2ACPU (S1) Q3ACPU Q4ACPU Q4ARCPU MELSECNET remote I/O station Unusable Unusable MELSECNET/B remote I/O station Unusable Unusable

AJ72LP25

AJ72LP15 MELSECNET/10 remote I/O station

AJ72QLP25

AJ72QBR15

A1SJ72QLP25

A1SJ72QBR15

Unusable Unusable

No restrictions No restrictions

Unusable

Unusable Unusable

Unusable No restrictions

No restrictions No restrictions

MELSEC-QnA

Unusable

No restrictions

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2 SYSTEM CONFIGURATION

2.2.2 Precautions when configuring a system

Design the system with the following considerations to prevent mis-input from the remote I/O module:

(1) During power on and power off

Start the data link after turning on the power for the remote I/O module. Turn off power for the remote I/O module after stopping the data link.

During

Master module (Data-link status)

Remote I/O module (Power supply status)

operation

During stop

(2) During momentary power failure of the remote I/O module

When momentary power failure occurs with the power (24VDC) supplied to the remote I/O module, mis-input may occur.

(a) Cause for mis-input due to a momentary power failure

The remote I/O module hardware uses the power after internally converting the module power (24VDC) in to 5VDC. When momentary power failure occurs with the remote I/O module, the following condition occurs: (Time for the 5VDC in the internal remote I/O module to turn off) > (input module on Therefore, mis-input is caused when a refresh is performed within the time indicated by

Remote I/O module (Module power supply and input external-power supply)

off response time)

) in the diagram below.

OFF

MELSEC-QnA

Data link start Data link stop

Remote I/O module (Internal 5VDC)

Input (Xn)

Because the input external-power supply is turned off, the input (Xn) turns off after the response time of input module is turned off.

2 - 3

2 SYSTEM CONFIGURATION

(b) Countermeasure for mis-input

Wire the power supply cable for the power supply module, stabilized power, and input/external-supply power of the AC input from the same power source.

Programmable controller CPU

MELSEC-QnA

For DC input

For AC input

Power supply module

Stabilized

power supply

Programmable controller CPU

Power supply module

Stabilized

power supply

24VDC

Master module

Module power supply

Master module

Module power supply

Remote I/O module

Input

external-supply

power

Remote I/O module

Input

external-supply

power

REMARK

When supplying power from one power source to multiple remote I/O modules, select the cable and perform the wiring with considerations to the voltage decline from the cables. Connections can be established if the remote I/O module's receiving port voltage is within the specification range of the used remote I/O module.

Stabilized

power supply

Remote module

2 - 4

Remote module

2 SYSTEM CONFIGURATION

POINT

To utilize the functions described in Chapter 14 or later, use a module with "9707B*" or later is shown as a DATE code on the rating plate. * "9707B" indicates that the module was manufactured in July 1997 and its function version is

PROGRAMMABLE CONTROLLER

DATE

MADE IN JAPAN

Manufactured date

(3) Access to station No.64

(a) To a local station of No. 64, other station access from GX Developer or

GOT is not allowed. If the station No. is changed to other than 64, other station access is executable.

(b) The CC-Link board is not allowed to access a local station or intelligent

device station whose station No. is 64. If the station No. is changed to other than 64, other station access is executable.

(4) Precautions for use on remote I/O stations

Transient transmissions using dedicated instructions are not allowed to local stations and intelligent device stations.

0512 B

Function version

BD992C103H06

MODEL

POWER

DATE

0512 B

MADE IN JAPAN BD992C154H06

Manufactured date

Function version

MELSEC-QnA

2 - 5

2 SYSTEM CONFIGURATION

MELSEC-QnA

2.2.3 List of system equipment restricted by master/local module versions

Table 2.2 lists the CC-Link system equipment restricted by the function, hardware and software versions of the master/local modules.

Product name Model Description

A1SJ61BT11 Master/local module for AnS/A2US series AJ61BT11 Master/local module for A series

Master/local module

High-speed counter module

Thermocouple temperature input module Platinum temperature measuring resistor Pt100 temperature input module ID interface module AJ65BT-D32ID2 2 Number of readers/writers that can be connected is 2 RS-232C interface module

Positioning module

Peripheral device connection module

1 Supported by the hardware version F and later of the AJ61BT11 and AJ61QBT11, the hardware version G and later of the

A1SJ61BT11 and A1SJ61QBT11, and the function version B and later of the QJ61BT11.

For other than the above, the setting is one station or four stations only. 2: Can be used with function version B or later. 3: Can be used with software version J (manufactured in Jan., 1998) or later.

A1SJ61QBT11 Master/local module for Q2AS series AJ61QBT11 Master/local module for QnA series QJ61BT11 Master/local module for Q series

AJ65BT-D62 2

AJ65BT-D62D(S1)

AJ65BT-68TD

AJ65BT-64RD3 2

AJ65BT-64RD4

AJ65BT-R2(N)

AJ65BT-D75P2-S3

AJ65BT-G4-S3

For a list of products by partner manufacturers, refer to the following CC-Link Partner Association website. http://www.cc-link.org/

Table 2.2 System equipment list

24 bit binary, 5/12/24VDC input type, 200kPPS, 2 channels 24 bit binary, differential input type, 400kPPS, 2 channels

For connecting thermocouple Temperature input 8 channels

For connecting Pt 100 (3 wire type) Temperature input 4 channels

For connecting Pt 100 (4 wire type)

Temperature input 4 channels

Computer link function RS-232C, 1 channel For positioning control, Pulse chain output 2 axes (independent, simultaneous 2 axial, 2 axial linear interpolation and 2 axial circular interpolation) For peripheral device connection RS-422, 1 channel

Number of

occupied stations

When local station 1 to 4

stations

4 stations

1 station

4 stations

1 station

Station type

Master or local

station

Remote device

staion

Intelligent

device station

2 - 6

2 SYSTEM CONFIGURATION

2.2.4 About Ver. 1.10

The module of which the station to station cable length is uniformly 20cm or more by improving the conventional limit of the station to station cable length is defined as Ver.

1.10. The conventional modules are defined as Ver. 1.00. Refer to Section 3.2.2 for the maximum overall cable distance of Ver. 1.10. The conditions for setting the station to station cable length uniformly to 20cm or more are indicated below.

1) All modules configuring the CC-Link system must use

2) All data link cables trust be Version 1.10 compatible CC-

POINT

In a system where the modules of Ver. 1.00 and Ver. 1.10 are used together, the maximum overall cable distance and station to station cable length are as specified for Ver. 1.00. Refer to Section 3.2.1 for the maximum overall cable distance and station to station cable length of Ver. 1.00.

(1) Checking Version 1.10

The "CC-Link" logo is printed on the front of the module or on the "rating plate" for the Version 1.10 modules.

(a) Front of the AJ61QBT11

Version 1.10.

Link dedicated cable.

MELSEC-QnA

(b) Rating plate of AJ61QBT11

PROGRAMMABLE CONTROLLER

DATE

Relevant regulation

MADE IN JAPAN

BD992C103H06

2 - 7

standards

2 SYSTEM CONFIGURATION

MELSEC-QnA

(FG)

A1SJ61QBT11

(d) Rating plate of A1SJ61QBT11

MODEL

POWER

DATE

MADE IN JAPAN BD992C154H06

Relevant regulation standards

2 - 8

3 SPECIFICATION

3. SPECIFICATION

3.1 General Specification

MELSEC-QnA

For general specifications, refer to the user's manual for the CPU module used.

3 - 1

3 SPECIFICATION

MELSEC-QnA

3.2 Performance Specifications

The performance specifications of the CC-Link is shown in Table 3.2.

Item AJ61QBT11 A1SJ61QBT11

Transmission speed Can select from 156 kbps/ 625 kbps/ 2.5 Mbps/ 5 Mbps/ 10 Mbps Maximum overall cable distance (Maximum transmission distance)

Maximum number of connected modules (when master station)

Number of occupied stations (when local station)

Maximum link points for one system

Link points for one remote/local station

Communication method Broadcast polling method

Synchronous method Frame synchronous method

Encoding method NRZI method

Transmission path Bus (RS-485)

Transmission format HDLC standard

Error control system

Connection cable

RAS function

Number of parameter registration to E2PROM

I/O occupied points 32 points (I/O allocation: 32 special points)

Internal current consumption (5VDC) 0.45 A 0.4 A Weight 0.4 kg 0.25 kg

1: 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.

2: Each of Ver.1.10 compatible CC-Link cables, CC-Link dedicated cables (Ver.1.00), and CC-Link dedicated high performance cables

must not be used together with other cable types.

If different cable types are used together, normal data transmission is not guaranteed.

Also attach the terminating resistor which matches the kind of the cable. (Refer to section 7.5)

Table 3.2 Performance specifications

Different from the transmission speed: (Refer to Section 3.2.1, 3.2.2)

64 modules

However, the following conditions must be satisfied: {(1×a) + (2×b) + (3×c) + (4×d)}

a: number of modules occupying 1 station b: number of modules occupying 2 stations c: number of modules occupying 3 stations d: number of modules occupying 4 stations

{(16×A) + (54×B) + (88×C)} 2304

A: Number of remote I/O stations B: Number of remote device stations C: Number of local stations,

standby master stations, intelligent device stations

1 to 4 stations

Remote I/O (RX, RY) : 2048 points Remote register (RWw) : 256 points (master station Remote register (RWr) : 256 points (remote/local station

Remote I/O (RX, RY) : 32 points (local station: 30 points) Remote register (RWw) : 4 points (master station Remote register (RWr) : 4 points (remote/local station

CRC (X CC-Link dedicated cable (Ver.1.00)/CC-Link dedicated high performance cable/Version

1.10 compatible CC-Link dedicated cable

• Automatic return function

• Slave station cutoff function

• Error detection by the link special relay/register

10,000 times

1 (switched using DIP switch)

+ X12 + X5 + 1)

remote/local station)

master station)

3 - 2

3 SPECIFICATION

3.2.1 Maximum overall cable distance (for Ver. 1.00)

The relationship between the transmission speed and the maximum overall cable distance is described below:

(1) For a system consisting of only remote I/O stations and remote

device stations

MELSEC-QnA

Remote I/O station

or remote

device station

Master station

Remote I/O station

or remote

device station

2 1 1

Maximum overall cable distance

Remote I/O station

or remote

device station

Remote I/O station

or remote

device station

1 Cable length between remote I/O stations or remote device stations. 2 Cable length between the master station and the adjacent stations.

Transmission rate

156 kbps 1200 m (3937.2 ft.) 625 kbps 600 m (1968.6 ft.)

2.5 Mbps

5 Mbps

10 Mbps

CC-Link dedicated cable (terminating resistor 110 Ω)

Station-to-station cable length

30 cm (11.81 in.) or more

30 cm (11.81 in.) to

59 cm (23.23 in.)

60 cm (23.62 in.) or more 150 m (492.15 ft.)

30 cm (11.81 in.) to

59 cm (23.23 in.)

60 cm (23.62 in.) to

99 cm (38.98 in.)

1 m (3.28 ft.) or more

Maximum overall cable distance

200 m (656.2 ft.)

110 m (360.9 ft.)

50 m (164.1 ft.)

80 m (262.5 ft.)

100 m (328.1 ft.)

Transmission rate

156 kbps 1200 m (3937.2 ft.) 625 kbps 900 m (2952.9 ft.)

2.5 Mbps 400 m (1312.4 ft.)

5 Mbps 160 m (524.96 ft.)

Number of connected

stations: 1 to 32

Number of connected

stations: 33 to 48

10 Mbps

Number of connected

stations: 49 to 64

The cable length between remote I/O stations or remote device stations is within this range and if even one location is wired, the

maximum overall cable distance will be as indicated above.

CC-Link dedicated high performance cable (terminating resistor 130 Ω)

Station-to-station cable length

30 cm (11.81 in.) or more

30 cm (11.81 in.) to

39 cm (15.35 in.)

40 cm (15.75 in.) or more 100 m (328.1 ft.)

30 cm (11.81 in.) to

39 cm (15.35 in.)

40 cm (15.75 in.) to

69 cm (27.17 in.)

70 cm (27.56 in.) or more

1 m (3.28 ft.) or more

Maximum overall cable distance

100 m (328.1 ft.)

80 m (262.5 ft.)

20 m (65.52 ft.)

30 m (98.43 ft.)

100 m (328.1 ft.)

3 - 3

3 SPECIFICATION

First Second Third 4th 43th

Master station

Remote I/O station

MELSEC-QnA

(Example) When the transmission rate is 10 Mbps, and 43 remote I/O stations and

remote device stations are connected using the CC-Link dedicated high performance cable, because the cable connecting the second and third stations is "35 cm (13.78 in.)", the maximum overall cable distance will be "80 cm (31.5 in.)".

Remote device

station

Remote I/O station Remote I/O station

Remote device

station

1 m (3.28 ft.) 50 cm (19.69 in.) 35 cm (13.78 in.) 50 cm (19.69 in.)

(2) For a system consisting of remote I/O stations, remote device

stations, local stations and intelligent device stations

Master station

Remote I/O station

or remote

device station

Remote I/O station

or remote

device station

1 222

Maximum overall cable distance

Local station

or Intelligent

device station

1 Cable length between remote I/O stations or remote device stations 2 Cable length between the master, local or, intelligent device station and the

Transmission rate

156 kbps 1200 m (3937.2 ft.) 625 kbps 600 m (1968.6 ft.)

2.5 Mbps

5 Mbps

10 Mbps

adjacent stations

CC-Link dedicated cable (terminating resistor 110 Ω)

Station-to-station cable length

30 cm (11.81 in.) or more

30 cm (11.81 in.) to

59 cm (23.23 in.)

60 cm (23.62 in.) or more 150 m (492.15 ft.)

30 cm (11.81 in.) to

59 cm (23.23 in.)

60 cm (23.62 in.) to

99 cm (38.98 in.)

1 m (3.28 ft.) or more

2 m (6.56 ft.) or more

Transmission rate

156 kbps 1200 m (3937.2 ft.) 625 kbps 600 m (1968.6 ft.)

2.5 Mbps

5 Mbps

10 Mbps

The cable length between remote I/O stations or remote device stations is within this range and if even one location is wired, the

maximum overall cable distance will be as indicated above.

CC-Link dedicated high performance cable (terminating resistor 130 Ω)

Station-to-station cable length

30 cm (11.81 in.) or more

30 cm (11.81 in.) to

59 cm (23.23 in.)

60 cm (23.62 in.) or more 150 m (492.15 ft.)

70 cm (27.56 in.) to

99 cm (38.98 in.)

1 m (3.28 ft.) or more

2 m (6.56 ft.) or more

Local station or Intelligent

device station

Maximum overall cable distance

200 m (656.2 ft.)

110 m (360.9 ft.)

50 m (164.1 ft.)

80 m (262.5 ft.)

100 m (328.1 ft.)

Maximum overall cable distance

200 m (656.2 ft.)

110 m (360.9 ft.)

50 m (164.1 ft.)

80 m (262.5 ft.)

3 - 4

3 SPECIFICATION

MELSEC-QnA

3.2.2 Maximum overall cable distance (for Ver. 1.10)

The relation of the transmission speed and maximum overall cable distance when configuring the entire system with Version 1.10 modules and cable is shown below.

Master station

Remote I/O station

or remote

device station

Station to station cable length

Remote I/O station

or remote

device station

Maximum overall cable distance

Local station or

intelligent device

station

Local station or

intelligent device

station

Version 1.10 compatible CC-Link dedicated cable (terminating resistor 110Ω)

Transmission speed Station to station cable length Maximum overall cable distance

156kbps 1200m

625kbps 900m

2.5Mbps 400m

5Mbps 160m

10Mbps

20cm or longer

100m

3 - 5

3 SPECIFICATION

3.3 CC-Link Dedicated Cable

Use the CC-Link dedicated cables for the CC-Link system. If a cable other than the CC-Link dedicated cable is used, the performance of the CC-Link system cannot be guaranteed. For the specifications of the CC-Link dedicated cables or any other inquiries, visit the following website: CC-Link Partner Association: http://www.cc-link.org/

REMARK

For details, refer to the CC-Link cable wiring manual issued by CC-Link Partner Association.

MELSEC-QnA

3 - 6

3 SPECIFICATION

MELSEC-QnA

3.4 I/O Signals to the Programmable Controller CPU

The I/O signals for the master/local module's programmable controller CPU is described.

3.4.1 I/O signal list

The list of I/O signals is described in Table 3.3. The "n" in the table indicates the master/local module's first I/O number, and it is determined by the installation position and the module installed before the master/local module. <Example> When the master/local module's first I/O number is "X/Y30":

Xn0 to X(n+1)F Yn0 to Y(n+1)F

Signal direction: programmable controller CPU master/local module Signal direction: programmable controller CPU master/local module

Input

number

Xn0 Module error Xn1 Data link status at host station Xn2 Parameter setting status Xn3 Data link status at other stations Xn4 Module reset acceptance complete Xn5 (Prohibited to use) – – Yn5 (Prohibited to use) – –

Data link startup by buffer memory

Xn6

parameter normal completion Data link startup by buffer memory

Xn7

parameter error completion

Data link startup by E

Xn8

parameter normal completion

Data link startup by E

Xn9

parameter error completion

Parameter registration to E

XnA

normal completion

Parameter registration to E

XnB

error completion XnC (Prohibited to use) – – YnC

XnD

XnE

XnF Module ready

PROM erasure normal completion

PROM erasure abnormal

completion

Signal name

PROM

X30 to X4F Y30 to Y4F

Table 3.3 I/O signal list

Availability Availability Master station

Local

station

Output

number

Yn0 Refresh instruction Yn1 Yn2 Yn3 Yn4 Module reset request

Data link startup request from buffer

Yn6

memory parameters

Yn7 (Prohibited to use) – –

Data link startup request from the

Yn8

Yn9 (Prohibited to use) – –

YnA

YnB

YnD

YnE

YnF

PROM parameters

Parameter registration request to

PROM

PROM erasure request

Signal name

(Prohibited to use) – –

(Prohibited to use) –

: Usable : Prohibited to use

Master station

Local

station

–

3 - 7

3 SPECIFICATION

MELSEC-QnA

Signal direction: programmable controller CPU master/local module Signal direction: programmable controller CPU master/local module

Input

number

X(n+1)0 Y(n+1)0 X(n+1)1 Y(n+1)1 X(n+1)2 Y(n+1)2 X(n+1)3 Y(n+1)3 X(n+1)4 Y(n+1)4 X(n+1)5 Y(n+1)5 X(n+1)6 Y(n+1)6 X(n+1)7 Y(n+1)7 X(n+1)8 Y(n+1)8 X(n+1)9 Y(n+1)9 X(n+1)A Y(n+1)A X(n+1)B Y(n+1)B X(n+1)C Y(n+1)C X(n+1)D Y(n+1)D X(n+1)E Y(n+1)E X(n+1)F

Signal name

(Prohibited to use) –

Table 3.3 I/O signal list

Availability Availability Master station

Local

station

Output

number

–

Y(n+1)F

Signal name

(Prohibited to use) – –

: Usable : Prohibited to use

Master station

Local

station

Important

The output signals that are prohibited to use as shown in Table 3.3 are used by the system, so users may not use them. When a user does use (on/off) these signals, a normal operation cannot be guaranteed.

3 - 8

3 SPECIFICATION

3.4.2 I/O signal details

The on/off timing, conditions, etc. of I/O signals shown in Table 3.3 are described.

(1) Module error: Xn0

MELSEC-QnA

Indicates if the module is normal or not. Turns ON when a watchdog timer error occurs due to a hardware fault or the like. When making a reset, reset the programmable controller CPU. OFF : module normal ON : module error

Module error (Xn0)

Module ready (XnF)

3 - 9

3 SPECIFICATION

Data link status at host station (Xn1)

Data link startup by buffer memory/E PROM parameter normal completion (Xn6/Xn8)

Parameter setting status (Xn2)

MELSEC-QnA

(2) Data link status at host station: Xn1

Indicates data link status at the host station. SB006E represents the same meaning. For programming, use either Xn1 or SB006E. Note that the ON/OFF condition for Xn1 is opposite to that for SB006E. When Xn1 is used, the condition is as follows: OFF : data link stopped ON : data link in progress

OFF

Start processing

Host parameter status (SW0068)

Data link startup request from buffer memory/E PROM Parameter (Yn6/Yn8)

Module ready (XnF)

Module erro (Xn0)

Module reset acceptance complete (Xn4)

Module reset request (Yn4)

Power ON

OFF

Initialization

(3) Parameter setting status: Xn2

Indicates parameter setting status at host station. SB006D represents the same meaning. For programming, use either Xn2 or SB006D. OFF : normal ON : error in setting (An error code is stored in SW0068.)

Turns off when Yn6 or Yn8 is executed in the status that error does not occur.

3 - 10

3 SPECIFICATION

MELSEC-QnA

(4) Data link status at other stations: Xn3

Indicates data link status at other stations (remote/local stations). SB0080 represents the same meaning. For programming, use either Xn3 or SB0080. OFF : all stations normal ON : error station exists (An error station status is stored in SW0080 to 83.)

(5) Module reset acceptance complete: Xn4

Indicates the acceptance status of reset request by the module reset request (Yn4). Reset cannot be performed when module error (Xn0 on).

(a) When module reset request (Yn4) is turned on, module ready (XnF) turns off

and initialization is executed. When the initialization is completed normally, module ready (XnF) turns on. Module reset request (Yn4) is turned off by turning on the module reset acceptance complete (Xn4).

To make a data link, set the data link startup request (Yn6/Yn8) again.

(Normal startup after reset)

odule reset acceptance

omplete (Xn4)

Initialization

odule ready (XnF)

odule reset request

Yn4)

3 - 11

3 SPECIFICATION

MELSEC-QnA

(b) When module reset request (Yn4) is turned on, module ready (XnF) turns off

and initialization is executed. When the initialization is completed abnormally, module ready (XnF) does not turn on, but module error (Xn0) turns on.

(Error startup after reset)

Module reset acceptance complete (Xn4)

Module ready (XnF)

Module error (Xn0)

OFF

Initialization

Module reset request (Yn4)

(6) Data link startup by buffer memory parameter normal completion: Xn6

Indicates normal completion in data link startup requested by the buffer-memory parameter data link startup request (Yn6).

(a) When (Yn6) is turned on, the parameter contents at the (address 0

H to 5FH)

in buffer memory are checked. If the check result is normal data link is started automatically.

(b) When data link is normally started, the signal for "data link startup by buffer-

memory parameter normal completion" (Xn6) is turned on.

Data link startup by buffer-memory parameter normal completion (Xn6)

Parameter setting status (Xn2)

OFF

Start processing

Host station parameter status (SW0068)

Buffer-memory parameter data link startup request (Yn6)

3 - 12

3 SPECIFICATION

MELSEC-QnA

(7) Data link startup by buffer memory parameter error completion: Xn7

Indicates abnormal completion in data link startup requested by the buffermemory parameter data link startup request (Yn6).

(a) When (Yn6) is turned on, the parameter contents at the (address 0

in buffer memory are checked. If error is detected the signal for "data link startup by buffer-memory parameter abnormal completion" (Xn7) is turned on.

(b) Parameter setting status (Xn2) is turned on and the error code is stored in the

host station parameter status in buffer memory (SW0068).

Data link startup by buffer-memory parameter error completion (Xn7)

Parameter setting status (Xn2)

Start processing

H to 5FH)

Host station parameter status (SW0068)

Buffer-memory parameter data link startu

request (Yn6)

Error code

(8) Data link startup by E2PROM parameter normal completion: Xn8

Indicates normal completion in data link startup requested by the E2PROM

parameter data link startup request (Yn8).

(a) When (Yn8) is turned on, the E

PROM parameter contents are checked. If

the check result is normal data link is started automatically.

(b) When data link is normally started, the signal for "data link startup by

PROM parameter normal completion" (Xn8) is turned on.

Data link startup by E2PROM parameter normal completion (Xn8)

Parameter setting status (Xn2)

OFF

Start processing

Host station parameter status (SW0068)

E startup request (Yn8)

PROM parameter data link

3 - 13

3 SPECIFICATION

MELSEC-QnA

(9) Data link startup by E2PROM parameter error completion: Xn9

Indicates abnormal completion in data link startup requested by the E2PROM

parameter data link startup request (Yn8).

(a) When (Yn8) is turned on, the E

error is detected the signal for "data link startup by E

abnormal completion" (Xn9) is turned on.

(b) Parameter setting status (Xn2) is turned on and the error code is stored in the

host station parameter status in buffer memory (SW0068).

Data link startup by E2PROM parameter error completion (Xn9)

Parameter setting status (Xn2)

PROM parameter contents are checked. If

PROM parameter

Start processing

Host station parameter status (SW0068)

PROM parameter data link

E startup request (Yn8)

Error code

(10) Parameter registration to E2PROM normal completion: XnA

Indicates normal completion in registering parameters at (buffer-memory address 0

H to 5FH) to E

PROM (YnA).

(a) When (YnA) is turned on, the parameter contents stored in the parameter

information area buffer memory (address 0 parameters are registered to E

(b) When registration is normally completed, the signal for "parameter registration

to E

Parameter registration to E2PROM normal completion (XnA)

PROM requested by the parameter registration request to

PROM.

H to 5FH) are checked. If the

PROM normal completion" (XnA) is turned on.

Registration processing

Registration to E (SW00B9)

Parameter registration request to

PROM (YnA).

PROM status

3 - 14

3 SPECIFICATION

MELSEC-QnA

(11) Parameter registration to E2PROM error completion: XnB

Indicates abnormal completion in registering parameters at (buffer-memory address 0

to E

H to 5FH) to E

PROM (YnA).

(a) When the parameter registration request (YnA) to the E

the parameters stored in the buffer-memory "parameter information area (address 0

H to 5FH)" are written to the E

(b) When the registration ends error, the E

(XnB) turns on and the error code is stored in the buffer memory E registration status (SW00B9).

Parameter registration to E2PROM error completion (XnB)

PROM requested by the parameter registration request

PROM is turned on,

PROM.

PROM parameter registration error

PROM

Registration processing

Registration to E (SW00B9)

Parameter registration request to

PROM (YnA).

PROM status

Error code

3 - 15

)

3 SPECIFICATION

MELSEC-QnA

(12) E2PROM erasure normal completion: XnD

This signal indicates the normal completion of erasing the parameters in the

PROM in response to the E2PROM erasure request (YnD).

(a) When the E

PROM are erased.

(b) On normal completion of erasure, the E

(XnD) turns on.

normal completion (XnD) turns off.

E2PROM erasure normal completion (XnD)

PROM erasure request (YnD) turns on, the parameters in the

PROM erasure normal completion

PROM erasure request (YnD), the E2PROM erasure

Erasure

processing

PROM erasure result

E (SW00BA)

E2PROM erasure request

YnD

(13) E2PROM erasure abnormal completion: XnE

This signal indicates the abnormal completion of erasing the parameters in the

PROM in response to the E2PROM erasure request (YnD).

E (a) When the E

PROM are erased.

(b) On abnormal completion of erasure, the E

completion (XnE) turns on and the error code is stored into the E

erasure result (SW00BA) of the buffer memory.

abnormal completion (XnE) turns off.

E2PROM erasure abnormal completion (XnE)

PROM erasure request (YnD) turns on, the parameters in the

PROM erasure abnormal

PROM erasure request (YnD), the E2PROM erasure

PROM

Erasure processing

PROM erasure result

E (SW00BA)

E2PROM erasure request

YnD

Error code

3 - 16

3 SPECIFICATION

MELSEC-QnA

(14) Module ready: XnF

Indicates if the module is ready for operation.

(a) Turns on automatically when the module becomes ready for operation

Used as an interlock signal when a sequence program is used to make access to the master/local module.

(b) Turns off when one of the following conditions occur:

• There is an error in the module switch settings.

• The module reset request signal (Yn4) is turned on.

• The module error signal (Xn0) is turned on.

Power supply ON

Module ready (XnF)

Module error (Xn0)

Module reset request

Yn4)

(15) Refresh instruction: Yn0

Indicates if the content of remote output RY (address 160H to 1DFH) in the buffer memory is effective or not. Same meaning for local stations. For remote input RX and remote register RWr/RWw except remote output RY, refresh is continued independently of this signal. OFF : Not effective (Sends all-off data.) ON : Effective (Sends data in "remote output (address 160

Master station Remote I/O station

Remote input (RX)

Remote output (RY)

buffer memory.)

Input

Output

Remote device station

Remote input (RX)

Remote output (RY)

H to 1DFH)" in the

Local station

Remote output (RY)

Remote input (RX)

POINT

(1) Yn0 is set (on) before the data link start up. (2) Yn0 is turned off when the programmable controller CPU is in the STOP status.

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3 SPECIFICATION

MELSEC-QnA

(16) Module reset request: Yn4

Signal used to reset the module for debugging. The module can be reset individually without resetting the programmable controller CPU. If you cannot start the remote station earlier than starting the system in any method, resetting the module after the start of the remote station allows the system to start from the initial status securely. Refer to (5) for signal timing.

(17) Data link startup request from buffer memory parameter: Yn6

Starts data link according to the parameter (address 0H to 5FH) contents in buffer memory. Do not turn on this signal during RUN of the programmable controller CPU and during a data link. If you are going to change any parameter data during RUN of the programmable controller CPU and during a data link, always turn on SB0002 (data link stop) to stop the data link, change the parameter data, and then turn on this signal to restart the data link. Refer to (6) and (7) for signal timing.

(18) Data link startup request from E2PROM parameter: Yn8

Starts data link according to the parameter contents registered in E2PROM. Do not turn on this signal during RUN of the programmable controller CPU and during a data link. If you are going to change any parameter data during RUN of the programmable controller CPU and during a data link, always turn on SB0002 (data link stop) to stop the data link, change the parameter data, and then turn on this signal to restart the data link. Refer to (8) and (9) for signal timing.

POINT

The factory-set E2PROM values are inconsistent. Before executing a data link start with the Yn8 signal, always execute parameter registration with the YnA signal at least once.

(19) Parameter registration request to E2PROM: YnA

The signal for registering parameter (address 0H to 5FH) in buffer memory to

PROM. Refer to (10) and (11) for signal timing. Since parameter registration to E parameter registration with the YnA signal a minimum required number of times.

PROM is limited to 10,000 times, execute

(20) E2PROM erasure request: YnD

The signal for erasing the parameters in the E2PROM. Refer to (12) and (13) for the signal timing.

3 - 18

3 SPECIFICATION

3.5 Buffer Memory

The buffer memory is used to swap data between the master/local module and the programmable controller CPU. In the programmable controller CPU, the FROM/TO instructions are used to read/write data. The contents of the buffer memory return to the default values when the power is turned off and the programmable controller CPU is reset.

3.5.1 Buffer memory list

The buffer memory list is shown in Table 3.4. When using a master/local module as a standby master station, refer to the respective columns under "Availability" in the table as explained below. x When a standby master station is operating as a master station: "Master station"

column

x When a standby master station is operating as a standby master station: "Local

station" column

Address Availability

Hex. Dec.

0H to

60H to

80H to

CEH to

E0H to

15F

160H

1DF

1E0H

2DF

* Do not write to areas that are prohibited to use. An error may occur.

Parameter information

0 to 95

area

96 to

127

128 to

Parameter information

205

area

206 to

223

224 to

Remote input (RX)

351

352 to

Remote output (RY)

479

Remote register (RWw) (Master station:

480 to

for sending

735

Local station: for sending/receiving)

Item Details

(Prohibited to use)

– – – – –

Table 3.4 Buffer memory list (1/2)

Stores the information (parameters) to execute the data link.

When master station: Stores the input status from the remote/local station. When local station: stores the input status from the master station. When master station: Stores the output status of the output to the remote/local station. When local station: Stores the output status of the output to the master station. When master station: Stores the transmission data to the remote/all local stations. When local station: Stores the transmission data to the master/other local stations. Also, stores the received data from the remote/other local stations.

Read/write

possibility

Read/write enabled

Read only

Write only

Read/write enabled

Write only

Read/write enabled

Master station

(Not available when a

standby master station is

controlling the system)

(Not available when a

standby master station is

controlling the system)

MELSEC-QnA

Local

station

–

: Usable : Prohibited to use

–

Reference

Section

3.5.2 (1)

Section

15.2.1

Section

3.5.2 (2)

Section

3.5.2 (3)

3 - 19

3 SPECIFICATION

Address Availability

Hex. Dec.

Remote register (RWr)

2E0H

3DF

736 to

991

(Master station: for receiving Local station: for receiving)

3E0H

992 to

1503

5DF

5E0H

1504

Link special relay (SB) Stores the data-link status.

5FF

1535

600H

1536

7FF

800H

to 9FF A00H

to FFF

1000H

1FFF

2000H

2FFF

Link special register

(SW)

2047

2048

to 2559 2560

Random access buffer

to 4095

4096

Transmission and

receiving buffer

8191

8192

Automatic updating

buffer

12287

Do not write to areas that are prohibited to use. An error may occur.

Item Details

(Prohibited to use)

– – – – –

Table 3.4 Buffer memory list (2/2)

When master station: Stores the received data from the remote/local station. When local station: Stores the received data from the master station.

Stores the data-link status.

Uses for dedicated instruction of RIRD, RIWT, etc.

Stores the transmission and received data and the control data when a transient transmission (communication using the transmission and receiving buffer) is made with the intelligent device stations. The area for each intelligent device station is set with the network parameters. Stores the automatic updating data when a transient transmission (communication using the automatic updating buffer) is made with the intelligent device stations. The area for each intelligent device station is set with the network parameters.

Read/write

possibility

Read only

Read/write enabled (write disabled depending on the device)

Read/write enabled

Master station

MELSEC-QnA

Reference

Local

station

–

Section

3.5.2 (3)

Section

3.5.2 (4)

Section

3.5.2 (5)

–

Section

15.6

Section

15.2.1

Section

15.2.1

: Usable : Prohibited to use

3 - 20

3 SPECIFICATION

MELSEC-QnA

3.5.2 Buffer memory details

The details of each item shown in Table 3.4 of Section 3.5.1 is described.

(1) Parameter information area

The conditions to perform data link is set. Also, these can be registered in the E

Address

Hex. Dec.

0H 0 (Prohibited to use) – –

1H 1

2H 2 Number of retries Set the number of retries to the communication faulty station. 3

3H 3

4H 4 (Prohibited to use) – – 5H 5 (Prohibited to use) – –

6H 6

7H to FH 7 to 15 (Prohibited to use) – –

10H to 13H 16 to 19

14H to 17H 20 to 23

18H to 1FH 24 to 31 (Prohibited to use) – –

20H to 5FH 32 to 95 Station information Set the connected remote/local station type.

Do not write to areas that are prohibited to use. An error may occur.

Number of connected modules

Number of automatic return modules

Operation specification when CPU is down

Reserved station specification Invalid station specification

Item Description Default

Table 3.5 Parameter information area list

Set the number of connected remote/local station modules. (including reserved stations)

Set the number of remote/local stations modules that can return with 1 link scan.

Specify the data-link status when there is a master station programmable controller CPU error.

Set a reserved station. 0 (No specification)

Specify an invalid station. 0 (No specification)

PROM.

0 (Stop)

Station type: Remote I/O station Number of occupied stations: 1 Station numbers: 1 to 64

(a) Number of connected modules

This sets the number of remote/local station modules connected to the master station (including reserved stations). This is not a station count. The setting range is "1 to 64 (modules)."

POINT

The station information (address 20H to 5FH) for the specified "number of connected" stations becomes valid.

(b) Number of retries

This sets the number of retries to the remote/local station with a data link error. The setting range is "1 to 7 (times)." If the remote/local station cannot recover a normal data link after performing specified number of retries, the station becomes a "data-link faulty station."

3 - 21

3 SPECIFICATION

MELSEC-QnA

This sets the number of remote/local stations that can return to the system during 1 link scan. The range is "1 to 10 (modules)."

(d) Operation specification when CPU is down

This specifies the data-link status when the master station programmable controller CPU has an error which "stops the error operation". "0" is stop and "1" is continue.

(e) Reserved station specification

This is set to include the remote/local stations that are not actually connected in the number of connected modules, so that a data link error does not occur.

When a connected remote/local station is set as a reserved station, the

station cannot perform any data link at all.

Turn on the bit corresponding to the station number to be set as

reserved. However, for the remote/local station that occupies more than 2 stations, turn on the only bit for the station numbers set by the module's station number setting switch.

Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

H 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

11H 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 12H 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 13H 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

1 to 64 in the table below indicate the station numbers.

<Setting example> When setting a local station with station number 4 and a remote station with station number 9 as reserved in the system configuration below:

Stations to be connected in the future

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)

Station No.9

Remote station

(occupies 1 station)

Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

H 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0

10 11H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

3 - 22

3 SPECIFICATION

MELSEC-QnA

(f) Error invalid station specification

This is set so that the remote/local station that can no longer perform data link due to power off, etc. will not be treated as a "data-link faulty station" on the master station and the local station. Be careful, however, for errors will not be detected.

When the same station number is specified as a reserved station, the

reserved station specification has the priority.

Turn on the bit corresponding to the station number of the invalid station.

However, for remote/local stations that occupy more than 2 stations, turn on the only bit for the station numbers set by the module's station number setting switch.

Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

H 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

15H 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16H 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 17H 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

1 to 64 in the table below indicate the station numbers.

<Setting example> When setting a local station with station number 4 and a remote station with station number 9 as invalid in the system configuration below:

Set as 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 4

stations)

Station No.8

Remote station

(occupies 1 station)

Station No.9

Remote station

(occupies 1 station)

Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

H 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0

10 11H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

3 - 23

3 SPECIFICATION

MELSEC-QnA

(g) Station information

This sets the remote/local station type for connected remote/local stations and reserved stations.

The data configuration to be set is shown below.

b15 b12tob11 b8tob7 b0

Station type

Number of

occupied stations

Station number

1: occupies 1 station 2: occupies 2 stations 3: occupies 3 stations 4: occupies 4 stations

0: Remote I/O station 1: Remote device station

The buffer memory address for each module is shown in the table

2: Intelligent device station (including local station)

1 to 64 (01

H to 40H)

below. For example, when setting for the 25th module, write to the buffer

Module Address Module Address Module Address Module Address

1st module 20H 17th module 30H 33rd module 40H 49th module 50H

2nd module 21H 18th module 31H 34th module 41H 50th module 51H

3rd module 22H 19th module 32H 35th module 42H 51st module 52H 4th module 23H 20th module 33H 36th module 43H 52nd module 53H 5th module 24H 21st module 34H 37th module 44H 53rd module 54H 6th module 25H 22nd module 35H 38th module 45H 54th module 55H 7th module 26H 23rd module 36H 39th module 46H 55th module 56H 8th module 27H 24th module 37H 40th module 47H 56th module 57H

9th module 28H 25th module 38H 41st module 48H 57th module 58H 10th module 29H 26th module 39H 42nd module 49H 58th module 59H 11th module 2AH 27th module 3AH 43rd module 4AH 59th module 5AH 12th module 2BH 28th module 3BH 44th module 4BH 60th module 5BH 13th module 2CH 29th module 3CH 45th module 4CH 61st module 5CH 14th module 2DH 30th module 3DH 46th module 4DH 62nd module 5DH 15th module 2EH 31st module 3EH 47th module 4EH 63rd module 5EH 16th module 2FH 32nd module 3FH 48th module 4FH 64th module 5FH

memory address "38

H."

<Setting example> When connecting a remote I/O station, a remote device station and a

station

local station:

3rd module

Local station

Station No.4 (occupies 4

stations)

Address

21H

22H

type

Number of

occupied

stations

Station number

02H

04H

Station

<<System configuration example>> <<Station information setting>>

Master

station

1st module

Remote I/O

station

Station No.1

(occupies 1 station)

2nd module

Remote device

Station No.2

(occupies 2 stations)

3 - 24

3 SPECIFICATION

Master station

MELSEC-QnA

(2) Remote input (RX) and remote output (RY)

(a) Master station Remote I/O station/remote device station/

local station

Master station

• Input status from remote I/O station, remote device station (RX) and local station (RY) are stored.

• Two words are used per station.

Remote I/O station

(station No.1: occupies 1 station)

Remote device station

(station No.2: occupies 2 stations)

For station No.1

For station No.2

For station No.3

For station No.4

For station No.5

For station No.6

For station No.7

For station No.8

For station No.9

For station No.63

For station No.64

Address

E0 E1H

E2H

E3H E4H E5H E6H E7H E8H

E9H EAH EB ECH ED EEH EF

F0 F1 F2H

15BH 15CH 15DH

15EH

15FH

Remote input (RX)

RX F to RX 0 RX 1F to RX 10 RX 2F to RX 20 RX 3F to RX 30 RX 4F to RX 40 RX 5F to RX 50 RX 6F to RX 60 RX 7D to RX 70 RX 8F to RX 80 RX 9F to RX 90

RX AF to RX A0

RX BF to RX B0 RX CF to RX C0

RX DF to RX D0 RX EF to RX E0

RX FD to RX F0

RX10F to RX100

RX11F to RX110

RX7CF to RX7C0 RX7DF to RX7D0 RX7EF to RX7E0 RX7FF to RX7F0

X0F to X00 X1F to X10

Remote input (RX)

RX0F to RX00 RX1F to RX10

Station

number

Buffer memory

1 E0H to E1H 14 FAH to FBH 27 114H to 115H 40 12EH to 12FH 53 148H to 149H 2 E2H to E3H 15 FCH to FDH 28 116H to 117H 41 130H to 131H 54 14AH to 14BH 3 E4H to E5H 16 FEH to FFH 29 118H to 119H 42 132H to 133H 55 14CH to 14DH 4 E6H to E7H 17 100H to 101H 30 11AH to 11BH 43 134H to 135H 56 14EH to 14FH 5 E8H to E9H 18 102H to 103H 31 11CH to 11DH 44 136H to 137H 57 150H to 151H 6 EAH to EBH 19 104H to 105H 32 11EH to 11FH 45 138H to 139H 58 152H to 153H 7 ECH to EDH 20 106H to 107H 33 120H to 121H 46 13AH to 13BH 59 154H to 155H 8 EEH to EFH 21 108H to 109H 34 122H to 123H 47 13CH to 13DH 60 156H to 157H

9 F0H to F1H 22 10AH to 10BH 35 124H to 125H 48 13EH to 13FH 61 158H to 159H 10 F2H to F3H 23 10CH to 10DH 36 126H to 127H 49 140H to 141H 62 15AH to 15BH 11 F4H to F5H 24 10EH to 10FH 37 128H to 129H 50 142H to 143H 63 15CH to 15DH 12 F6H to F7H 25 110H to 111H 38 12AH to 12BH 51 144H to 145H 64 15EH to 15FH 13 F8H to F9H 26 112H to 113H 39 12CH to 12DH 52 146H to 147H – –

Master station's buffer memory and station number correspondence table

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

3 - 25

3 SPECIFICATION

MELSEC-QnA

Local station

• Data to be sent to master station is stored in the remote output (RY) corresponding to the host station.

• Input status from remote I/O station, remote device station (RX) and other local station are stored.

• Two words are used per station.

... The last 2 bits cannot be used when the master station and the

local station are communicating.

(station No.4: occupies 1 station)

Local station

RY F to RY 0 RY 1F to RY 10 RY 2F to RY 20 RY 3F to RY 30 RY 4F to RY 40 RY 5F to RY 50 RY 6F to RY 60 RY 7D to RY 70 RY 8F to RY 80

RY 9F to RY 90 RY AF to RY A0 RY BF to RY B0 RY CF to RY C0 RY DF to RY D0 RY EF to RY E0 RY FD to RY F0

RY10F to RY100 RY11F to RY110

(station No.5: occupies 4 stations)

Remote output (RY) AddressRemote output (RY)

RY F to RY 0 RY 1F to RY 10 RY 2F to RY 20 RY 3F to RY 30 RY 4F to RY 40 RY 5F to RY 50 RY 6F to RY 60

RY 7D to RY 70

RY 8F to RY 80

RY 9F to RY 90 RY AF to RY A0 RY BF to RY B0 RY CF to RY C0 RY DF to RY D0 RY EF to RY E0 RY FD to RY F0

RY10F to RY100 RY11F to RY110

Local station

160 161H 162H 163H 164 165H 166H 167H 168 169 16AH

16BH 16C 16D

16EH

16F

170

171H

172H

For station No.1

For station No.2

For station No.3

For station No.4

For station No.5

For station No.6

For station No.7

For station No.8

For station No.9

RY7CF to RY7C0 RY7DF to RY7D0 RY7EF to RY7E0 RY7FF to RY7F0

to to

RY7CF to RY7C0 RY7DF to RY7D0 RY7EF to RY7E0

RY7FF to RY7F0

1DB 1DCH 1DDH 1DEH

1DF

For station No.63

For station No.64

Station

number

1 160H to 161H 14 17AH to 17BH 27 194H to 195H 40 1AEH to 1AFH 53 1C8H to 1C9H 2 162H to 163H 15 17CH to 17DH 28 196H to 197H 41 1B0H to 1B1H 54 1CAH to 1CBH 3 164H to 165H 16 17EH to 17FH 29 198H to 199H 42 1B2H to 1B3H 55 1CCH to 1CDH 4 166H to 167H 17 180H to 181H 30 19AH to 19BH 43 1B4H to 1B5H 56 1CEH to 1CFH 5 168H to 169H 18 182H to 183H 31 19CH to 19DH 44 1B6H to 1B7H 57 1D0H to 1D1H 6 16AH to 16BH 19 184H to 185H 32 19EH to 19FH 45 1B8H to 1B9H 58 1D2H to 1D3H 7 16CH to 16DH 20 186H to 187H 33 1A0H to 1A1H 46 1BAH to 1BBH 59 1D4H to 1D5H 8 16EH to 16FH 21 188H to 189H 34 1A2H to 1A3H 47 1BCH to 1BDH 60 1D6H to 1D7H

9 170H to 171H 22 18AH to 18BH 35 1A4H to 1A5H 48 1BEH to 1BFH 61 1D8H to 1D9H 10 172H to 173H 23 18CH to 18DH 36 1A6H to 1A7H 49 1C0H to 1C1H 62 1DAH to 1DBH 11 174H to 175H 24 18EH to 18FH 37 1A8H to 1A9H 50 1C2H to 1C3H 63 1DCH to 1DDH 12 176H to 177H 25 190H to 191H 38 1AAH to 1ABH 51 1C4H to 1C5H 64 1DEH to 1DFH 13 178H to 179H 26 192H to 193H 39 1ACH to 1ADH 52 1C6H to 1C7H – –

Local station's buffer memory address and station number correspondence table

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

3 - 26

3 SPECIFICATION

Master station

Address

For station No.1

For station No.2

For station No.3

For station No.4

For station No.5

For station No.6

For station No.7

For station No.8

For station No.9

Remote output (RY) Remote output (RY)

160H

RY F

161

162H 163

164H

RY 4F

165

166

RY 6F

167

RY 7D

168

RY 8F

169

16A

RY AF

16BH

RY BF

16C

RY CF

16DH

16E

16FH

RY FD

170

171H 172

MELSEC-QnA

(b) Master station remote I/O station/remote device station/local

station

Master station

• Output status to remote I/O station, remote device station (RY) and all local stations (RX) are stored.

• Two words are used per station.

10F RY

RY 0 to RY 1F RY 10 to RY 2F RY 20

to RY 3F RY 30 to

RY 40

RY 50

to RY 5F to

RY 60 to

RY 70

RY 80 to RY 9F RY 90 to

RY A0 to

RY B0 to

RY C0 to RY DF RY D0

to RY EF RY E0 to

RY F0 to

RY 100

toRY11F 110RY

Remote I/O station

(station No.1: occupies 1 station)

to Y0F Y00

Y1F Y10

Remote device station

(station No.2: occupies 2 stations)

to RY0F RY00

toRY1F RY10

toto

1DB

RY7CF RY7C0to

For station No.63

For station No.64

1DCH 1DDH

1DE 1DFH

RY7DF

RY7EF RY7E0

RY7FF

RY7D0 to

RY7F0to

Station

number

Buffer memory

Master station's buffer memory and station number correspondence table

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

3 - 27

3 SPECIFICATION

MELSEC-QnA

Local station

• Data received from remote I/O station, remote device station (RY) and master station (RY) are stored.

• Two words are used per station.

... The last 2 bits cannot be used when the master station and the

local station are communicating.

Local station

(station No.4: occupies 1 station)

Remote input (RX)

to RX F RX 0 to RX 1F RX 10 to RX 2F RX 20

to RX 3F RX 30 to

RX 4F

RX 6F RX 7D

RX 9F RX AF RX BF

RX 40 to RX 5F RX 50 to

RX 60 to

RX 70

to RX 8F RX 80 to

RX 90 to

RX A0 to

RX B0 to RX CF RX C0 to RX DF RX D0

RX E0

to RX EF to RX FD RX F0 to 10F RX RX 100

110RX

toRX11F

(station No.5: occupies 4 stations)

Remote input (RX) Address

RX 4F

RX 6F RX 7D

RX 9F RX AF RX BF

RX11F

Local station

RX 40

RX 60 RX 70

RX 90 RX A0 RX B0

RX E0

110RX

E0H E1H E2H E3 E4 E5 E6 E7H E8H

E9 EA EB EC EDH EEH EFH

F0H

F1H

to RX F RX 0 to RX 1F RX 10 to RX 2F RX 20

to RX 3F RX 30 to to RX 5F RX 50 to to

to RX 8F RX 80 to to to to RX CF RX C0 to RX DF RX D0

to RX EF to RX FD RX F0 to 10F RX RX 100 to

For station No.1

For station No.2

For station No.3

For station No.4

For station No.5

For station No.6

For station No.7

For station No.8

For station No.9

RX7CF

RX7DF RX7D0to RX7EF RX7E0to RX7FF RX7F0to

RX7C0

RX7CF

RX7DF RX7D0to RX7EF RX7E0to RX7FF RX7F0to

RX7C0

15B

15C

For station No.63

15D

15E

For station No.64

15F

Station

number

Local station's buffer memory address and station number correspondence table

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

3 - 28

3 SPECIFICATION

Master station

Remote register (RWw)

1E0H 1E1

1E2 1E3

1E4H 1E5

1E6H 1E7H 1E8H

1E9H 1EAH 1EBH 1EC

1EDH 1EE

1EFH

1F0

1F1

1F2

1F3

1F4

1F5

1F6H

1F7

1F8H

1F9

1FAH 1FBH 1FCH 1FDH 1FEH

1FFH

200

2DB

2DC

2DDH

2DE

2DFH

For station No.1

For station No.2

For station No.3

For station No.4

For station No.5

For station No.6

For station No.7

For station No.8

For station No.64

Address

(3) Remote register (RWw) and remote register (RWr)

(a) Master station (RWw) Remote device station (RWw)/

local station (RWr)

Master station

• Data to be sent to remote register at remote device station (RWw) and remote registers of all local stations (RWr) are stored.

• Four words are used per station.

RWw 0 RWw 1 RWw 2 RWw 3 RWw 4 RWw 5 RWw 6 RWw 7 RWw 8

RWw 9 RWw A RWw B RWw C RWw D

RWw E

RWw F RWw 10 RWw 11 RWw 12 RWw 13 RWw 14 RWw 15 RWw 16

RWw 17 RWw 18 RWw 19 RWw 1A RWw 1B RWw 1C RWw 1D RWw 1E RWw 1F

RWw FC RWw FD RWw FE RWw FF

Remote I/O station

(station No.1: occupies 1 station)

Remote device station

(station No.2: occupies 2 stations)

Remote register (RWw)

RWw0 RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7

MELSEC-QnA

3 - 29

3 SPECIFICATION

MELSEC-QnA

Local station

• Data sent to the remote register (RWw) of remote device station can also be received.

• Four words are used per station.

(station No.4: occupies 1 station)

Local station

RWr 0 RWr 1 RWr 2 RWr 3 RWr 4 RWr 5 RWr 6 RWr 7 RWr 8

RWr 9 RWr A RWr B RWr C RWr D RWr E

RWr F RWr 10 RWr 11 RWr 12 RWr 13 RWr 14 RWr 15 RWr 16

RWr 17 RWr 18 RWr 19

RWr 1A RWr 1B RWr 1C RWr 1D RWr 1E

RWr 1F

RWr FC RWr FD RWr FE RWr FF

(station No.5: occupies 4 stations)

Local station

RWr 0 RWr 1 RWr 2 RWr 3 RWr 4 RWr 5 RWr 6 RWr 7 RWr 8

RWr 9 RWr A RWr B RWr C RWr D RWr E RWr F RWr 10 RWr 11 RWr 12 RWr 13 RWr 14 RWr 15 RWr 16

RWr 17 RWr 18 RWr 19

RWr 1A RWr 1B RWr 1C RWr 1D RWr 1E RWr 1F

to to

RWr FC RWr FD

RWr FE RWr FF

AddressRemote register (RWr) Remote register (RWr)

2E0H 2E1H 2E2H 2E3H 2E4H 2E5 2E6H 2E7 2E8H

2E9 2EA 2EBH

2EC 2EDH

2EEH 2EFH

2F0H

2F1

2F2

2F3

2F4

2F5H

2F6

2F7H

2F8

2F9H 2FAH

2FBH 2FCH 2FDH

2FEH

2FFH

300

3DBH

3DC 3DDH

3DEH 3DFH

For station No.1

For station No.2

For station No.3

For station No.4

For station No.5

For station No.6

For station No.7

For station No.8

For station No.64

3 - 30

3 SPECIFICATION

MELSEC-QnA

Following tables show the relationship between station numbers and buffer memory addresses used.

[Master station]

Station number Buffer memory address Station number Buffer memory address

1 1E0H to 1E3H 33 260H to 263H 2 1E4H to 1E7H 34 264H to 267H 3 1E8H to 1EBH 35 268H to 26BH 4 1ECH to 1EFH 36 26CH to 26FH 5 1F0H to 1F3H 37 270H to 273H 6 1F4H to 1F7H 38 274H to 277H 7 1F8H to 1FBH 39 278H to 27BH 8 1FCH to 1FFH 40 27CH to 27FH

9 200H to 203H 41 280H to 283H 10 204H to 207H 42 284H to 287H 11 208H to 20BH 43 288H to 28BH 12 20CH to 20FH 44 28CH to 28FH 13 210H to 213H 45 290H to 293H 14 214H to 217H 46 294H to 297H 15 218H to 21BH 47 298H to 29BH 16 21CH to 21FH 48 29CH to 29FH 17 220H to 223H 49 2A0H to 2A3H 18 224H to 227H 50 2A4H to 2A7H 19 228H to 22BH 51 2A8H to 2ABH 20 22CH to 22FH 52 2ACH to 2AFH 21 230H to 233H 53 2B0H to 2B3H 22 234H to 237H 54 2B4H to 2B7H 23 238H to 23BH 55 2B8H to 2BBH 24 23CH to 23FH 56 2BCH to 2BFH 25 240H to 243H 57 2C0H to 2C3H 26 244H to 247H 58 2C4H to 2C7H 27 248H to 24BH 59 2C8H to 2CBH 28 24CH to 24FH 60 2CCH to 2CFH 29 250H to 253H 61 2D0H to 2D3H 30 254H to 257H 62 2D4H to 2D7H 31 258H to 25BH 63 2D8H to 2DBH 32 25CH to 25FH 64 2DCH to 2DFH

Station number and buffer memory correspondence table

3 - 31

3 SPECIFICATION

MELSEC-QnA

[Local station]

Station number Buffer memory address Station number Buffer memory address

1 2E0H to 2E3H 33 360H to 363H

2 2E4H to 2E7H 34 364H to 367H

3 2E8H to 2EBH 35 368H to 36BH

4 2ECH to 2EFH 36 36CH to 36FH

5 2F0H to 2F3H 37 370H to 373H

6 2F4H to 2F7H 38 374H to 377H

7 2F8H to 2FBH 39 378H to 37BH

8 2FCH to 2FFH 40 37CH to 37FH

9 300H to 303H 41 380H to 383H 10 304H to 307H 42 384H to 387H 11 308H to 30BH 43 388H to 38BH 12 30CH to 30FH 44 38CH to 38FH 13 310H to 313H 45 390H to 393H 14 314H to 317H 46 394H to 397H 15 318H to 31BH 47 398H to 39BH 16 31CH to 31FH 48 39CH to 39FH 17 320H to 323H 49 3A0H to 3A3H 18 324H to 327H 50 3A4H to 3A7H 19 328H to 32BH 51 3A8H to 3ABH 20 32CH to 32FH 52 3ACH to 3AFH 21 330H to 333H 53 3B0H to 3B3H 22 334H to 337H 54 3B4H to 3B7H 23 338H to 33BH 55 3B8H to 3BBH 24 33CH to 33FH 56 3BCH to 3BFH 25 340H to 343H 57 3C0H to 3C3H 26 344H to 347H 58 3C4H to 3C7H 27 348H to 34BH 59 3C8H to 3CBH 28 34CH to 34FH 60 3CCH to 3CFH 29 350H to 353H 61 3D0H to 3D3H 30 354H to 357H 62 3D4H to 3D7H 31 358H to 35BH 63 3D8H to 3DBH 32 35CH to 35FH 64 3DCH to 3DFH

Station number and buffer memory correspondence table

3 - 32

3 SPECIFICATION

Master station

Address Remote register (RWr)

2E0 2E1

For station No.1

For station No.2

For station No.3

For station No.4

For station No.5

For station No.6

For station No.7

For station No.8

For station No.64

2E2H 2E3H 2E4H 2E5H 2E6H 2E7 2E8H 2E9H 2EAH 2EBH 2ECH 2ED 2EEH 2EF

2F0 2F1H 2F2H 2F3 2F4 2F5 2F6

2F7H 2F8

2F9 2FAH 2FBH 2FC 2FDH 2FE 2FF

300H

3DBH

3DCH 3DD

3DEH 3DF

(b) Master station (RWr)

local station (RWw)

Master station

• Data to be sent to remote register (RWr) of remote device station and remote register (RWw) of local station are stored.

• Four words are used per station.

(station No.1: occupies 1 station)

RWr 0 RWr 1 RWr 2 RWr 3 RWr 4 RWr 5 RWr 6 RWr 7 RWr 8 RWr 9 RWr A

RWr B RWr C RWr D

RWr E

RWr F RWr 10

RWr 11 RWr 12 RWr 13 RWr 14 RWr 15 RWr 16

RWr 17 RWr 18 RWr 19 RWr 1A RWr 1B

RWr 1C RWr 1D

RWr 1E RWr 1F

RWr FC RWr FD RWr FE

RWr FF

Remote I/O station

MELSEC-QnA

Remote device station (RWr)/

Remote device station

(station No.2: occupies 2 stations)

Remote register (RWr)

RWr0 RWr1 RWr2 RWr3 RWr4 RWr5 RWr6 RWr7

3 - 33

3 SPECIFICATION

MELSEC-QnA

Local station

• Data is sent to the master station and other local stations by storing in the address corresponding to the host station number.

• Data in the remote register (RWr) of remote device station can also be received.

RWw 0 RWw 1 RWw 2 RWw 3 RWw 4 RWw 5 RWw 6 RWw 7 RWw 8

RWw 9 RWw A RWw B RWw C RWw D RWw E

RWw F RWw 10 RWw 11 RWw 12 RWw 13 RWw 14 RWw 15 RWw 16

RWw 17 RWw 18 RWw 19 RWw 1A RWw 1B RWw 1C RWw 1D RWw 1E RWw 1F

RWw FC RWw FD

RWw FE RWw FF

Local station

1EAH

1EB 1ECH 1ED

1EE

1EF

1FAH

1FBH

1FCH

1FDH

1FEH

2DBH

2DC 2DDH

2DE

2DFH

Address

1E0

1E1H 1E2H 1E3H 1E4H 1E5H 1E6H 1E7H 1E8H 1E9

1F0

1F1

1F2

1F3H 1F4

1F5H 1F6

1F7H 1F8

1F9H

1FFH

200H

(station No.4: occupies 1 station)

Local station

Remote register (RWw) Remote register (RWw)

RWw 0 RWw 1 RWw 2 RWw 3 RWw 4 RWw 5 RWw 6 RWw 7 RWw 8

RWw 9 RWw A RWw B RWw C RWw D RWw E RWw F RWw 10 RWw 11 RWw 12 RWw 13 RWw 14 RWw 15 RWw 16

RWw 17 RWw 18 RWw 19 RWw 1A RWw 1B

RWw 1C

RWw 1D RWw 1E RWw 1F

RWw FC RWw FD

RWw FE RWw FF

(station No.5: occupies 4 stations)

For station No.1

For station No.2

For station No.3

For station No.4

For station No.5

For station No.6

For station No.7

For station No.8

For station No.64

3 - 34

3 SPECIFICATION

MELSEC-QnA

Following tables show the relationship between station numbers and buffer memory addresses used.

[Master station]

Station

number

Buffer memory

address

1 2E0H to 2E3H 14 314H to 317H 27 348H to 34BH 40 37CH to 37FH 53 3B0H to 3B3H 2 2E4H to 2E7H 15 318H to 31BH 28 34CH to 34FH 41 380H to 383H 54 3B4H to 3B7H 3 2E8H to 2EBH 16 31CH to 31FH 29 350H to 353H 42 384H to 387H 55 3B8H to 3BBH 4 2ECH to 2EFH 17 320H to 323H 30 354H to 357H 43 388H to 38BH 56 3BCH to 3BFH 5 2F0H to 2F3H 18 324H to 327H 31 358H to 35BH 44 38CH to 38FH 57 3C0H to 3C3H 6 2F4H to 2F7H 19 328H to 32BH 32 35CH to 35FH 45 390H to 393H 58 3C4H to 3C7H 7 2F8H to 2FBH 20 32CH to 32FH 33 360H to 363H 46 394H to 397H 59 3C8H to 3CBH 8 2FCH to 2FFH 21 330H to 333H 34 364H to 367H 47 398H to 39BH 60 3CCH to 3CFH

9 300H to 303H 22 334H to 337H 35 368H to 36BH 48 39CH to 39FH 61 3D0H to 3D3H 10 304H to 307H 23 338H to 33BH 36 36CH to 36FH 49 3A0H to 3A3H 62 3D4H to 3D7H 11 308H to 30BH 24 33CH to 33FH 37 370H to 373H 50 3A4H to 3A7H 63 3D8H to 3DBH 12 30CH to 30FH 25 340H to 343H 38 374H to 377H 51 3A8H to 3ABH 64 3DCH to 3DFH 13 310H to 313H 26 344H to 347H 39 378H to 37BH 52 3ACH to 3AFH – –

Station number and buffer memory correspondence table

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

[Local station]

Station

number

Buffer memory

address

1 1E0H to 1E3H 14 214H to 217H 27 248H to 24BH 40 27CH to 27FH 53 2B0H to 2B3H

2 1E4H to 1E7H 15 218H to 21BH 28 24CH to 24FH 41 280H to 283H 54 2B4H to 2B7H

3 1E8H to 1EBH 16 21CH to 21FH 29 250H to 253H 42 284H to 287H 55 2B8H to 2BBH

4 1ECH to 1EFH 17 220H to 223H 30 254H to 257H 43 288H to 28BH 56 2BCH to 2BFH

5 1F0H to 1F3H 18 224H to 227H 31 258H to 25BH 44 28CH to 28FH 57 2C0H to 2C3H

6 1F4H to 1F7H 19 228H to 22BH 32 25CH to 25FH 45 290H to 293H 58 2C4H to 2C7H

7 1F8H to 1FBH 20 22CH to 22FH 33 260H to 263H 46 294H to 297H 59 2C8H to 2CBH

8 1FCH to 1FFH 21 230H to 233H 34 264H to 267H 47 298H to 29BH 60 2CCH to 2CFH

9 200H to 203H 22 234H to 237H 35 268H to 26BH 48 29CH to 29FH 61 2D0H to 2D3H 10 204H to 207H 23 238H to 23BH 36 26CH to 26FH 49 2A0H to 2A3H 62 2D4H to 2D7H 11 208H to 20BH 24 23CH to 23FH 37 270H to 273H 50 2A4H to 2A7H 63 2D8H to 2DBH 12 20CH to 20FH 25 240H to 243H 38 274H to 277H 51 2A8H to 2ABH 64 2DCH to 2DFH 13 210H to 213H 26 244H to 247H 39 278H to 27BH 52 2ACH to 2AFH – –

Station number and buffer memory correspondence table

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

Station

number

Buffer memory

address

3 - 35

3 SPECIFICATION

MELSEC-QnA

(4) Link special relay (SB)

Data link status is stored in the form of bit on/off information. Buffer memory address 5E0

H to 5FFH corresponds to SB0000 to SB01FF.

Refer to Section 8.4.1 for details of link special relay (SB0000 to SB01FF). Following table shows the relationship between buffer memory address 5E0 5FF

Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

5E0

5E1H

5E2H

5E3H

5E4H

5E5H

5E6H

5E7H

5E8H

5E9H

5EAH

5EBH

5ECH 5EDH

5EEH

5EFH

5F0H

5F1H

5F2H

5F3H

5F4H

5F5H

5F6H

5F7H

5F8H 5F9H

5FAH

5FBH

5FCH

5FDH

5FEH

5FFH

F E D C B A 9 8 7 6 5 4 3 2 1 0 1F 1E 1D 1C 1B 1A 19 18 17 16 15 14 13 12 11 10

2F 2E 2D 2C 2B 2A 29 28 27 26 25 24 23 22 21 20

3F 3E 3D 3C 3B 3A 39 38 37 36 35 34 33 32 31 30

4F 4E 4D 4C 4B 4A 49 48 47 46 45 44 43 42 41 40

5F 5E 5D 5C 5B 5A 59 58 57 56 55 54 53 52 51 50

6F 6E 6D 6C 6B 6A 69 68 67 66 65 64 63 62 61 60

7F 7E 7D 7C 7B 7A 79 78 77 76 75 74 73 72 71 70

8F 8E 8D 8C 8B 8A 89 88 87 86 85 84 83 82 81 80

9F 9E 9D 9C 9B 9A 99 98 97 96 95 94 93 92 91 90

AF AE AD 9AC AB AA A9 A8 A7 A6 A5 A4 A3 A2 A1 A0

BF BE BD BC BB BA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0

CF CE CD CC CB CA C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 DF DE DD DC DB DA D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

EF EE ED EC EB EA E9 E8 E7 E6 E5 E4 E3 E2 E1 E0

FF FE FD FC FB FA F9 F8 F7 F6 F5 F4 F3 F2 F1 F0

10F 10E 10D 10C 10B 10A 109 108 107 106 105 104 103 102 101 100

11F 11E 11D 11C 11B 11A 119 118 117 116 115 114 113 112 111 110

12F 12E 12D 12C 12B 12A 129 128 127 126 125 124 123 122 121 120

13F 13E 13D 13C 13B 13A 139 138 137 136 135 134 133 132 131 130

14F 14E 14D 14C 14B 14A 149 148 147 146 145 144 143 142 141 140

15F 15E 15D 15C 15B 15A 159 158 157 156 155 154 153 152 151 150

16F 16E 16D 16C 16B 16A 169 168 167 166 165 164 163 162 161 160

17F 17E 17D 17C 17B 17A 179 178 177 176 175 174 173 172 171 170

18F 18E 18D 18C 18B 18A 189 188 187 186 185 184 183 182 181 180 19F 19E 19D 19C 19B 19A 199 198 197 196 195 194 193 192 191 190

1AF 1AE 1AD 1AC 1AB 1AA 1A9 1A8 1A7 1A6 1A5 1A4 1A3 1A2 1A1 1A0

1BF 1BE 1BD 1BC 1BB 1BA 1B9 1B8 1B7 1B6 1B5 1B4 1B3 1B2 1B1 1B0

1CF 1CE 1CD 1CC 1CB 1CA 1C9 1C8 1C7 1C6 1C5 1C4 1C3 1C2 1C1 1C0

1DF 1DE 1DD 1DC 1DB 1DA 1D9 1D8 1D7 1D6 1D5 1D4 1D3 1D2 1D1 1D0

1EF 1EE 1ED 1EC 1EB 1EA 1E9 1E8 1E7 1E6 1E5 1E4 1E3 1E2 1E1 1E0

1FF 1FE 1FD 1FC 1FB 1FA 1F9 1F8 1F7 1F6 1F5 1F4 1F3 1F2 1F1 1F0

H and SB0000 to SB01FF.

(5) Link special register (SW)

Data link status is stored in the form of word information. Buffer memory address 600 Refer to Section 8.4.2 for details of link special register (SW0000 to 01FF).

H to 7FFH corresponds to SW0000 to SW01FF.

H to

3 - 36

3 SPECIFICATION

MEMO

MELSEC-QnA

3 - 37

4 FUNCTIONS

4. FUNCTIONS

MELSEC-QnA

This chapter describes the functions.

4.1 Function List

The function list is shown in Table 4.1.

Item Function summary Reference

Communication between master and remote I/O stations Communication between master and remote device stations Communication between master and local stations

Communication with compound system

Reserved station function

Error invalid station function

Data-link status setting when a master station programmable controller CPU error occurs

Parameter registration to E2PROM

Input data from a data-link faulty station status setting

Module reset function from a sequence program

Data link stop/restart

Automatic return function

Slave station cutoff function

Data link status check (SB/SW)

RAS function

Offline test

Online test*

Monitor/diagnosis

Table 4.1 Function list

Performs on/off data communication with remote I/O station. Section 4.2

Performs on/off data and numeric data communication with remote device station. Performs on/off data and numeric data communication with local station. Performs communication with remote I/O, remote device and local stations. By setting the remote and local stations planned to be connected in the future as reserved stations, these stations will not be treated as error. When specified to an already connected module, data link cannot be performed at all. Remote and local stations that can no longer perform data link due to power off, etc., will not be treated as data-link faulty stations.

Data-link status can be set when an operation-stop error occurs with the master station programmable controller CPU.

By registering the parameters in the master module's E

the parameters do not have to be written every time the master module is started up. The status (clear/store) of the input (received) data from the data-link faulty station caused by power off, etc. can be set. When the switch setting is changed or an error occurred with the module, the module can be reset from the sequence program instead of resetting the programmable controller CPU. When executing the data link from Yn6 or Yn8, the data link can be stopped or restarted. When the module removed from the data link due to power off, etc. recovers to normal status, the module automatically joins the data link. The module which no longer can continue the data link due to power off, etc. is removed from the data link, and the data link is continued with only the normal modules. The data link status can be checked. Can be used for sequence program interlocking, etc. The following tests can be conducted:

• Hardware test........................... Operation check for the

individual module

• Line test....................................Module connection condition

check

• Parameter verification test........ Verify the set parameter

contents

Line tests and link control, such as start and stop are available from peripheral devices. Monitoring and diagnosing are available from peripheral devices.

PROM,

Section 4.3

Section 4.4

Section 4.5

Section 4.6

Section 4.7

Section 4.8

Section 6.1

Section 4.9

Section 4.10

Section 4.11

Section

4.12.1

Section

4.12.2

Section 8.3

Section 7.4 Section 7.7 Section 7.8

Section

15.10

Section

15.11

Function

availability

Master

station

Local

station

4 - 1

4 FUNCTIONS

MELSEC-QnA

The functions indicated with * are available only when the CPU and software package versions are any of the following:

• Q2ASCPU(S1) of the software version Q or later

• Q2ASHCPU(S1) of the software version Q or later

• Q2ACPU(S1) of the software version E or later

• Q3ACPU of the software version E or later

• Q4ACPU of the software version E or later

• SW21VD-GPPQ/SW2NX-GPPQ or later

4 - 2

4 FUNCTIONS

4.2 Communication Between the Master Station and Remote I/O Station

The overview of the communication between the master station and remote I/O station

Programmable controller CPU

is described.

Master station

MELSEC-QnA

Remote I/O station

SET Yn0

SET Yn8

FROM

Refresh instruction

Data link startup

by E

PROM

parameters

Buffer memory

Remote input

(RX)

Remote output

(RY)

Link scan

Input

Output

[Data link startup]

Turn on the refresh instruction (Yn0) and make the remote output (RY) data valid.

When the refresh instruction (Yn0) is off, all the remote output (RY) data is treated as 0 (off).

Turn on the data link startup by the E2PROM parameters (Yn8), and start the data

link.

However, the parameters must be set in E

PROM beforehand.

When the data link is started normally, the host data link status (Xn1) turns on.

POINT

The data link can be started from the parameters written in the "parameter information area" in the buffer memory. (Refer to Chapter 6.)

4 - 3

4 FUNCTIONS

Programmable controller

CPU

FROM

MELSEC-QnA

[Remote input]

The remote I/O station's input status is automatically (for each link scan) stored in

the master station's "remote input (RX)" in the buffer memory.

The input status stored in the "remote input (RX)" in the buffer memory is received

to the programmable controller CPU with the FROM instruction.

Master station

Remote input (RX)

RX0F

RX00

toRX1F RX10 RX2F RX3F RX30

RX4F RX40

RX20to to

Remote I/O station

(station No. 1: occupies 1 station)

toX0F

X00

Remote I/O station

(station No. 2: occupies 1 station)

X0F X00

toX1F

X10

Programmable controller

CPU

RX7FF RX7F0to

32 points module16 points module

[Remote output]

With the TO instruction, the on/off data output from the remote I/O station is written

to the "remote output (RY)" in the buffer memory.

The output status stored in the "remote output (RY)" in the buffer memory is

automatically output (for each link scan) from the remote I/O station.

Master station

Remote input (RY)

toRY0F RY00 toRY1F RY10

RY2F

RY20 to

RY3F RY30 RY4F

RY40

RY5F

RY50

RY6F

RY60

RY7F

RY70 to

RY8F RY80

Remote I/O station

(station No. 3: occupies 1 station)

Y0F Y00

Remote I/O station

(station No. 4: occupies 1 station)

toY0F Y00 toY1F

Y10

RY7FF

RY7F0to

16 points module 32 points module

4 - 4

4 FUNCTIONS

MELSEC-QnA

4.3 Communication Between the Master Station and Remote Device Station

The overview of the communication between the master station and remote device

Programmable controller CPU Master station

station is described.

Remote device station

FROM

SET Yn0

SET Yn8

Refresh instruction

Data link startup by EEPROM parameters

Buffer memory

Remote input

(RX)

Remote output

(RY)

Link scan

Remote input

(RX)

Remote output

(RY)

FROM

Remote register

(RWw)

Remote register

(RWr)

Link scan

Remote register

(RWw)

Remote register

(RWr)

4 - 5

4 FUNCTIONS

POINT

The data link can be started from the parameters written in the "parameter information area" in the buffer memory. (Refer to Chapter 6.)

Programmable controller

CPU

MELSEC-QnA

[Data link startup]

Turn on the refresh instruction (Yn0) and make the remote output (RY) data valid.

When the refresh instruction (Yn0) is off, all the remote output (RY) data is treated as 0 (off).

Turn on the data link startup by the E2PROM parameters (Yn8), and start the data

link.

However, the parameters must be set in E

PROM beforehand.

When the data link is started normally, the host data link status (Xn1) turns on.

[Remote input]

The remote device station's remote input (RX) is automatically (for each link scan)

stored in the master station's "remote input (RX)" in the buffer memory.

The input status stored in the "remote input (RX)" in the buffer memory is received

to the programmable controller CPU with the FROM instruction.

Master station

Remote device station

(station No. 1: occupies 2 stations)

Remote device station

(station No. 3: occupies 2 stations)

FROM

Remote input (RX)

toRX0F RX00

toRX1F

RX10 RX2F RX20to RX3F

RX30 RX4F RX40to RX5F RX50to RX6F RX60to RX7F RX70to RX8F RX80to

RX7FF

RX7F0

Remote input (RX)

toRX0F

RX00

RX1F

RX10

Remote input (RX)

RX0F RX1F

RX00to RX10to

4 - 6

4 FUNCTIONS

Programmable controller

CPU Master station

MELSEC-QnA

[Remote output]

With the TO instruction, the on/off data in the remote device station's remote output

(RY) is written to the "remote output (RY)" in the buffer memory.

Depending on the output status stored in the "remote output (RY)" in the buffer

memory, the remote device station's remote output (RY) is turned on/off.

Remote device station

(station No. 1:

occupies 2 stations)

Remote device station

(station No. 3:

occupies 2 stations)

Remote output (RY)

RY0F to RY00 RY1F to RY10 RY2F to RY20 RY3F to RY30 RY4F to RY40 RY5F to RY50 RY6F to RY60 RY7F to RY70 RY8F to RY80

RY7FF to RY7F0

Remote output (RY)

RY0F to RY00 RY1F to RY10

Remote output (RY)

RY0F to RY00 RY1F to RY10

4 - 7

4 FUNCTIONS

Programmable controller

CPU

MELSEC-QnA

[Written to the remote register (RWw)]

With the TO instruction, the transmission data is written to the "remote register

(RWw)" in the buffer memory.

The data stored in the "remote register (RWw)" in the buffer memory is sent to the

remote device station's remote register (RWw).

Master station

Remote device station

(station No. 1:

occupies 2 stations)

Remote device station

(station No. 3:

occupies 2 stations)

Remote register (RWw)

RWw0 RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7 RWw8

RWw9 RWwA RWwB RWwC RWwD RWwE

RWwF

RWw10

RWwFF

Remote register (RWw)

RWw0

RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7

Remote register (RWw)

RWw0 RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7

4 - 8

4 FUNCTIONS

Programmable controller

CPU

MELSEC-QnA

[Reading from the remote register (RWr)]

The data in the remote device station's remote register (RWr) is automatically

stored in the master station's "remote register (RWr)" in the buffer memory

The remote device station's remote register (RWr) data stored in the "remote

Remote device station

(station No. 3:

occupies 2 stations)

Master station

Remote device station

(station No. 1:

occupies 2 stations)

FROM

Remote register (RWr)

RWr0

RWr1 RWr2 RWr3 RWr4 RWr5 RWr6 RWr7 RWr8 RWr9 RWrA RWrB

RWrC RWrD

RWrE RWrF

RWr10

RWrFF

Remote register (RWr)

RWr0

RWr1 RWr2 RWr3 RWr4 RWr5 RWr6 RWr7

Remote register (RWr)

RWr0 RWr1 RWr2 RWr3 RWr4 RWr5 RWr6 RWr7

4 - 9

4 FUNCTIONS

4.4 Communication Between the Master Station and Local Station

The overview of the communication between the master and local stations is described.

Master stationProgrammable controller CPU

Local station (station No. 1)

MELSEC-QnA

SET Yn0

SET Yn8

FROM

Refresh instruction

Data link startup by EEPROM parameters

Buffer memory

Remote input (RX)

Receive area from local station No. 1

Receive area from local station No. 2

Remote output (RY)

Send area to local station No. 1

Send area to local station No. 2

Link scan

4 4

Link scan

Refresh instruction

Remote output (RY)

Remote input (RX)

Buffer memory

Host (station No. 1)

send area

Receive area from local station No. 2

Receive area from

master station

Receive area from

master station

Link scan

FROM

Remote register

(RWw)

Send area to local station No. 1

Send area to local station No. 2

Remote register

(RWr)

Receive area from local station No. 1

Receive area from local station No. 2

Link scan

Remote register

(RWr)

Receive area from

master station

Receive area from

master station

Remote register

(RWw)

Host (station No. 1)

send area

Receive area from

local station No. 2

POINT

The master station sends only the data for the stations that have started the data link. The data for the stations that have not started the data link are not sent.

4 - 10

Link scan

4 FUNCTIONS

MELSEC-QnA

Local station (station No. 2)

Programmable controller CPU

Link scan

Refresh instruction

Buffer memory

Remote output (RY)

Receive area

from local

station No. 1

Send area

for host

(station No. 2)

Remote input (RX)

Receive area

from master

station

Receive area

from master

station

SET Yn0

FROM

Link scan

Remote register

(RWr)

Receive area

from master

station

Receive area

from master

station

Remote register

(RWw)

Receive area

from local

station No. 1

Send area

for host

(station No. 2)

4 - 11

FROM

4 FUNCTIONS

POINT

The data link can also be started from the parameters written in the "parameter data area" in the buffer memory. (Refer to chapter 6.)

Programmable controller

CPU

MELSEC-QnA

[Data link startup]

Turn on the refresh instruction (Yn0) and make the remote output (RY) data valid.

When the refresh instruction (Yn0) is off, all the remote output (RY) data is treated as 0 (off).

Turn on the data link startup by the E2PROM parameters (Yn8) and start the data

link.

However, the parameters must be set in the E

PROM beforehand.

When the data link is started normally, the host data link status (Xn1) turns on.

[On/off data from local station

With the TO instruction, write the on/off data to be sent to the master and other local

master and other local stations]

stations to the local station's "remote output (RY)" in the buffer memory.

The data in local station's "remote output (RY)" in the buffer memory is

automatically (for each link scan) stored in the master station's "remote input (RX)" in the buffer memory and other local station's "remote output (RY)" in the buffer memory.

The input status stored in the "remote input (RX)" in the buffer memory is received

to the programmable controller CPU with the FROM instruction.

The input status stored in the "remote output (RY)" in the buffer memory is received

to the programmable controller CPU with the FROM instruction.

Master station

Local station

(station No. 1:

occupies 1 station)

Local station

(station No. 2:

occupies 4 stations)

FROM

Remote input (RX) Remote output (RY)

RX0F to RX00

RX1D to RX10

RX2F to RX20 RX3F to RX30 RX4F to RX40 RX5F to RX50 RX6F to RX60 RX7F to RX70

RX8F to RX80 RX9D to RX90 RXAF to RXA0

RX7FF to RX7F0

...The last 2 bits cannot be used when the master station and the local station are communicating.

RY0F to RY00 RY1D to RY10 RY2F to RY20 RY3F to RY30 RY4F to RY40 RY5F to RY50 RY6F to RY60 RY7F to RY70 RY8F to RY80 RY9D to RY90 RYAF to RYA0

RY7FF to RY7F0

Remote output (RY)

RY0F to RY00 RY1D to RY10 RY2F to RY20 RY3F to RY30 RY4F to RY40 RY5F to RY50 RY6F to RY60 RY7F to RY70 RY8F to RY80 RY9D to RY90

RYAF to RYA0

RY7FF to RY7F0

4 - 12

4 FUNCTIONS

Programmable controller

CPU

MELSEC-QnA

[On/off data from the master station

With the TO instruction, the on/off data to be sent to the local station is written to the

the local station]

master station's "remote output (RY)" in the buffer memory.

The data in the "remote output (RY)" in the buffer memory is automatically (for each

link scan) stored in the local station's remote input (RX) in the buffer memory.

The input status stored in the "remote input (RX)" in the buffer memory is received

to the programmable controller CPU with the FROM instruction.

Local station

Master station

Remote output (RY) Remote input (RX) Remote input (RX)

RY0F to RY00 RY1D to RY10

RY2F to RY20

RY3F to RY30

RY4F to RY40

RY5F to RY50

RY6F to RY60

RY7F to RY70

RY8F to RY80 RY9D to RY90 RYAF to RYA0

(station No. 1:

occupies 1 station)

RX0F to RX00 RX1D to RX10 RX2F to RX20 RX3F to RX30 RX4F to RX40 RX5F to RX50 RX6F to RX60 RX7F to RX70 RX8F to RX80 RX9D to RX90

RXAF to RXA0

Local station

(station No. 2:

occupies 4 stations)

RX0F to RX00 RX1D to RX10 RX2F to RX20 RX3F to RX30 RX4F to RX40 RX5F to RX50 RX6F to RX60 RX7F to RX70 RX8F to RX80 RX9D to RX90

RXAF to RXA0

RY7FF to RY7F0

...The last 2 bits cannot be used when the master station and the local station are communicating.

RX7FF to RX7F0

4 - 13

4 FUNCTIONS

Programmable controlle

CPU

MELSEC-QnA

[Word data from the master station to all local stations]

With the TO instruction, the word data to be sent to all local station is written to the

master station's "remote register (RWw)" in the buffer memory.

The data in the "remote register (RWw)" in the buffer memory is automatically (for

each link scan) stored to all local station's "remote registers (RWr)".

The word data stored in the "remote register (RWr)" in the buffer memory is

received to the programmable controller CPU with the FROM instruction.

Local station

(station No. 1:

Master station

Remote register (RWw) Remote register (RWr) Remote register (RWr)

RWw0

RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7 RWw8 RWw9 RWwA RWwB RWwC RWwD RWwE RWwF

RWw10 RWw11 RWw12 RWw13 RWw14

occupies 1 station)

RWr0

RWr1 RWr2 RWr3 RWr4 RWr5 RWr6 RWr7 RWr8 RWr9 RWrA RWrB RWrC RWrD RWrE RWrF

RWr10 RWr11 RWr12 RWr13 RWr14

Local station

(station No. 2:

occupies 4 stations)

RWr0 RWr1 RWr2 RWr3 RWr4 RWr5 RWr6 RWr7 RWr8

RWr9 RWrA RWrB RWrC RWrD RWrE RWrF

RWr10 RWr11 RWr12 RWr13 RWr14

RWwFF

4 - 14

RWrFF

4 FUNCTIONS

Programmable controller

CPU

MELSEC-QnA

[Word data from the local station

With the TO instruction, the word data to be sent to the master station or other local

the master station/other local stations]

stations is written to the local station's "remote register (RWw)" in the buffer memory. However, only writing can be performed to the area corresponding to the host station number.

The data in the "remote register (RWw)" in the buffer memory is automatically (for

each link scan) stored in the master station's "remote register (RWr)" and other local station's "remote register (RWw)".

The word data stored in the "remote register (RWr)" in the buffer memory is

received to the programmable controller CPU with the FROM instruction.

The word data stored in the "remote register (RWw)" in the buffer memory is

received to the programmable controller CPU with the FROM instruction.

Master station

Local station

(station No. 1:

occupies 1 station)

Local station

(station No. 2:

occupies 4 stations)

FROM

Remote register (RWr) Remote register (RWw) Remote register (RWw)

RWr0

RWr1

RWr2

RWr3

RWr4

RWr5

RWr6

RWr7

RWr8

RWr9 RWrA RWrB

RWrC RWrD

RWrE RWrF

RWr10 RWr11 RWr12 RWr13 RWr14

RWrFF

RWw0 RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7 RWw8

RWw9 RWwA RWwB RWwC RWwD RWwE

RWwF

RWw10 RWw11 RWw12 RWw13 RWw14

RWwFF

RWw0

RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7 RWw8 RWw9 RWwA RWwB RWwC RWwD RWwE RWwF

RWw10 RWw11 RWw12 RWw13 RWw14

RWwFF

4 - 15

4 FUNCTIONS

4.5 Communication in Compound Systems

The overview of the communication where the remote I/O station, remote device

Programmable controller CPU

station and local station coexist in the system.

Master station

MELSEC-QnA

Remote I/O station (station No. 1)

FROM

SET Yn0

SET Yn8

Refresh instruction

Data link startup by EEPROM parameters

Buffer memory

Remote input (RX)

Receive area

from remote

I/O station No. 1

Receive area

from remote

device station No. 2

Receive area from local station No. 3

Receive area from local station No. 4

Remote output (RY)

Send area to remote I/O station No. 1

Send area to remote device station No. 2

Send area to local station No. 3 Send area to local station No. 4

Input

Output

FROM

Remote register

(RWw)

Unusable

(station No. 1)

Send area to remote device station No. 2

Send area to local station No. 3

Send area to local station No. 4

Remote register

(RWr)

Unusable

(station No. 1)

Receive area

from remote

device station No. 2

Receive area from local station No. 3

Receive area from local station No. 4

4 - 16

4 FUNCTIONS

Remote device station (station No. 2)

Local station (station No. 3)

MELSEC-QnA

Local station (station No. 4)

Refresh instruction

Buffer memory

Remote output (RY)

Remote input (RX)

Receive area

from remote I/O

station No. 1

Receive area

from remote device

station No . 2

Host (station No. 3) send area

Receive area from local station No. 4

Remote output (RY)

Remote input (RX)

Remote output (RY)

Receive area from master station (station No. 1) Receive area from master station (station No. 2) Receive area from master station (station No. 3) Receive area from master station (station No. 4)

Remote register

(RWr)

Unusable

Remote register

(RWw)

(station No. 1)

Receive area from master station

Remote register

(RWw)

Unusable

Remote register

(RWr)

(station No. 1)

Receive area

from remote device

station No . 2

Host (station No. 3) send area

Receive area from local station No. 4

Refresh instruction

Buffer memory

Receive area

from remote I/O

station No. 1

Receive area

from remote device

station No. 2

Receive area from local station No. 3

Host (station No. 4) send area

Remote input (RX)

Receive area from master station (station No. 1) Receive area from master station (station No. 2) Receive area from master station (station No. 3) Receive area from master station (station No. 4)

Remote register

(RWr)

Unusable

(station No. 1)

Receive area from master station

Remote register

(RWw)

Unusable

(station No. 1)

Receive area

from remote device

station No. 2

Receive area from local station No. 3

Host (station No. 4) send area

4 - 17

4 FUNCTIONS

POINT

The data link can also be started from the parameters written in the "parameter data area" in the buffer memory. (Refer to chapter 6.)

Master station

MELSEC-QnA

[Data link startup]

Turn on the refresh instruction (Yn0) and make the remote output (RY) data valid.

When the refresh instruction (Yn0) is off, all the remote output (RY) data is treated as 0 (off).

Turn on the data link startup by the E2PROM parameters (Yn8) and start the data

link.

However, the parameters must be set in the E

PROM beforehand.

When the data link is started normally, the host data link status (Xn1) turns on.

[On/off data from remote I/O station/remote device station/local station

the master

station]

The input of remote I/O station, remote input (RX) of the remote device station and

the remote output (RY) of the local station are automatically (for each link scan) stored in the master station's "remote input (RX)" in the buffer memory and local station's "remote output (RY)" in the buffer memory.

The data in local station's "remote output (RY)" is also stored in other local station's

"remote output (RY)".

The input status stored in the "remote input (RY)" in the buffer memory is written to

the programmable controller CPU with the FROM instruction.

Remote I/O station

(station No. 1:

occupies 1 station)

Remote device station

(station No. 2:

occupies 2 stations)

Local station (station No.4:

occupies 1 station)

Local station (station No.5:

occupies 4 stations)

Remote input (RX)

RX0F to RX00 RX1F to RX10 RX2F to RX20 RX3F to RX30 RX4F to RX40 RX5F to RX50 RX6F to RX60

RX7D to RX70

RX8F to RX80

RX9F to RX90 RXAF to RXA0 RXBF to RXB0

RXCF to RXC0 RXDF to RXD0

RXEF to RXE0 RXFD to RXF0

RX10F to RX100

RX7FF to RX7F0

X0F to X00 X1F to X10

...The last 2 bits cannot be used when the master station and the local station are communicating.

Remote input (RX)

RX0F to RX00 RX1F to RX10

Remote output (RY)

RY0F to RY00 RY1F to RY10 RY2F to RY20 RY3F to RY30 RY4F to RY40 RY5F to RY50

RY6F to RY60 RY7D to RY70 RY8F to RY80 RY9F to RY90 RYAF to RYA0 RYBF to RYB0

RYCF to RYC0 RYDF to RYD0 RYEF to RYE0 RYFD to RYF0 RYAF to RYA0

RY7FF to RY7F0

Remote output (RY)

RY0F to RY00 RY1F to RY10 RY2F to RY20 RY3F to RY30 RY4F to RY40 RY5F to RY50 RY6F to RY60 RY7D to RY70 RY8F to RY80

RY9F to RY90 RYAF to RYA0 RYBF to RYB0 RYCF to RYC0 RYDF to RYD0 RYEF to RYE0 RYFD to RYF0 RYAF to RYA0

RY7FF to RY7F0

4 - 18

4 FUNCTIONS

Master station

MELSEC-QnA

[On/off data from the master station

the remote I/O station/remote device station/

local station]

With the TO instruction, the on/off data to be sent to the remote I/O station, remote

device station and local station is written to the master station's "remote output (RY)" in the buffer memory.

The output status in the master station's "remote output (RY)" in the buffer memory

is automatically (for each link scan) stored in the remote I/O station and remote device station's "remote output (RX)" and local station's remote input (RY).

Remote I/O station

(station No. 1:

occupies 1 station)

Remote device station

(station No. 2:

occupies 2 stations)

Local station (station No.4:

occupies 1 station)

Local station (station No.5:

occupies 4 stations)

Remote output (RY)

RY0F to RY00 RY1F to RY10 RY2F to RY20 RY3F to RY30 RY4F to RY40 RY5F to RY50 RY6F to RY60

RY7D to RY70

RY8F to RY80

RY9F to RY90 RYAF to RYA0 RYBF to RYB0

RYCF to RYC0 RYDF to RYD0

RYEF to RYE0 RYFD to RYF0 RYAF to RYA0

RY7FF to RY7F0

Y0F to Y00 Y1F to Y10

...The last 2 bits cannot be used when the master station and the local station are communicating.

Remote output (RY)

RY0F to RY00 RY1F to RY10

Remote input (RX)

RX0F to RX00 RX1F to RX10 RX2F to RX20 RX3F to RX30 RX4F to RX40 RX5F to RX50 RX6F to RX60 RX7D to RX70 RX8F to RX80

RX9F to RX90 RXAF to RXA0 RXBF to RXB0

RXCF to RXC0 RXDF to RXD0

RXEF to RXE0 RXFD to RXF0

RX10F to RX100

RX7FF to RX7F0

Remote input (RX)

RX0F to RX00 RX1F to RX10 RX2F to RX20 RX3F to RX30 RX4F to RX40 RX5F to RX50 RX6F to RX60 RX7D to RX70 RX8F to RX80

RX9F to RX90 RXAF to RXA0 RXBF to RXB0

RXCF to RXC0 RXDF to RXD0

RXEF to RXE0 RXFD to RXF0

RX10F to RX100

RX7FF to RX7F0

4 - 19

4 FUNCTIONS

Master station

Remote register

(RWw)

RWw0

RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7 RWw8 RWw9

RWwA RWwB RWwC RWwD RWwE

RWwF

RWw10 RWw11 RWw12 RWw13 RWw14 RWw15 RWw16 RWw17 RWw18 RWw19

RWw1A

RWw1B RWw1C RWw1D

RWw1E

RWw1F

RWw20

MELSEC-QnA

[Word data from the master station

With the TO instruction, the word data to be sent to remote device station and all

remote device station/all local stations]

local station is written to the master station's "remote register (RWw)" in the buffer memory.

The data in the "remote register (RWw)" in the buffer memory is automatically (for

each link scan) stored to remote device station's remote register (RWw) and all local stations' remote registers (RWr).

The transmission data to the remote device station's remote register (RWw) is also

sent to the local stations.

Remote I/O station

(station No. 1:

occupies 1 station)

Remote device station

(station No. 2:

occupies 2 stations)

Remote register

(RWw)

RWw0

RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7

Local station (station No.4:

occupies 1 stations)

Remote register

(RWr)

RWr0

RWr1 RWr2 RWr3 RWr4 RWr5 RWr6 RWr7 RWr8 RWr9

RWrA

RWrB

RWrC RWrD

RWrE RWrF

RWr10 RWr11 RWr12 RWr13 RWr14 RWr15 RWr16 RWr17 RWr18

RWr19 RWr1A RWr1B RWr1C RWr1D RWr1E

RWr1F

RWr20

Local station

(station No.5:

occupies 4 stations)

Remote register

(RWr)

RWr0 RWr1 RWr2 RWr3 RWr4 RWr5 RWr6 RWr7 RWr8

RWr9 RWrA RWrB RWrC RWrD RWrE RWrF

RWr10 RWr11 RWr12 RWr13 RWr14 RWr15 RWr16 RWr17 RWr18

RWr19 RWr1A RWr1B RWr1C RWr1D RWr1E RWr1F

RWr20

RWwFF

4 - 20

RWrFF

4 FUNCTIONS

Master station

Remote register

(RWr)

RWr0 RWr1 RWr2 RWr3 RWr4 RWr5 RWr6 RWr7 RWr8

RWr9 RWrA RWrB RWrC RWrD RWrE

RWrF

RWr10 RWr11 RWr12 RWr13 RWr14 RWr15 RWr16 RWr17 RWr18 RWr19 RWr1A RWr1B RWr1C RWr1D RWr1E RWr1F RWr20

MELSEC-QnA

[Word data from the remote device station/local station

The data in the remote device station's remote register (RWr) is automatically (for

the master station]

each link scan) stored in the master station's remote register (RWr) and all local stations' remote registers (RWw).

The data in the local station's "remote register (RWw)" in the buffer memory is

automatically (for each link scan) stored in the master station's remote register (RWr) and other local station's remote register (RWr).

The data of the remote device and local stations stored in the "remote register

(RWr)" in the buffer memory is written to the programmable controller CPU with the FROM instruction.

Remote I/O station

(station No. 1:

occupies 1 station)

Remote device station

(station No. 2:

occupies 2 stations)

Remote register

(RWr)

RWr0 RWr1 RWr2 RWr3 RWr4 RWr5 RWr6 RWr7

Local station (station No.4:

occupies 1 stations)

Remote register

(RWw)

RWw0 RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7 RWw8

RWw9 RWwA RWwB RWwC RWwD RWwE

RWwF

RWw10

RWw11 RWw12 RWw13 RWw14 RWw15 RWw16 RWw17 RWw18 RWw19 RWw1A RWw1B

RWw1C RWw1D

RWw1E RWw1F RWw20

Local station (station No.5:

occupies 4 stations)

Remote register

(RWw)

RWw0 RWw1 RWw2 RWw3 RWw4 RWw5 RWw6 RWw7 RWw8

RWw9 RWwA RWwB RWwC RWwD RWwE RWwF

RWw10

RWw11 RWw12 RWw13

RWw14

RWw15 RWw16 RWw17 RWw18

RWw19 RWw1A RWw1B RWw1C RWw1D RWw1E RWw1F RWw20

RWrFF

4 - 21

RWwFF

4 FUNCTIONS

MELSEC-QnA

4.6 Reserved Station Function

This is a function to treat the remote and local stations that are not actually connected (but planned for connection in the future) not as "data-link faulty stations".

POINT

If already connected remote and local stations are set as reserved station, the specified remote and local stations cannot perform data link at all.

(1) Setting method

The reserved station specification is performed with parameters (buffer memory address 10

H to 13H).

Turn on the bit corresponding to the station number of the station to be reserved. However, for remote/local stations that occupy more than 2 stations, turn on the only bit corresponding to the station number set in the module's station number setting switch. The buffer memory configuration is shown below. (1 to 64 indicates station

Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

H 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

11H 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 12H 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 13H 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

numbers.)

(2) Setting example

(a) System configuration example

When one local station and one remote station are to be connected in the future to the system with three remote stations:

Modules to be connected in the future

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)

Station No. 9

Remote station

(occupies 1 station)

(b) Buffer memory setting example

Turn on the 3rd bit, corresponding to station No. 4, and 8th bit,

Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

H 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0

11H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

corresponding to station No. 9. (Set "264" for address 10

4 - 22

H.)

4 FUNCTIONS

MELSEC-QnA

4.7 Error Invalid Station Function

This is a function to treat the remote and local stations that cannot perform data links due to power off, etc. not as "data-link faulty stations" on the master station and the local station.

POINT

Be careful, however, for errors will not be detected at all if set so.

If the remote or local station set as the invalid station and also "specified as a reserved station", the reserved station function has priority.

(1) Setting method

The invalid station specification is performed with parameters (buffer memory address 14

H to 17H).

Turn on the bit corresponding to the station number to be set as invalid. However, for the remote/local station which occupies more than 2 stations, turn on the only bit corresponding to the station number set with the module's station number setting switch. The buffer memory configuration is shown below. (1 to 64 indicates station

Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

H 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

15H 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16H 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 17H 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

numbers.)

(2) Setting example

(a) System configuration example

When specifying the remote station No.3 and local station No.7 as invalid stations in a system where three remote and two local stations are connected:

Modules to be set as error invalid

Station No. 7

Local station

(occupies 4

stations)

Master

station

Station No. 1

Remote station

(occupies 2 stations)

Station No. 3

Remote station

(occupies 1 station)

Station No. 4

Local station

(occupies 1

station)

Station No. 5

Remote station

(occupies 2 stations)

(b) Buffer memory setting example

Turn on the 2nd bit, corresponding to station No. 3, and 6th bit,

Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

H 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0

14 15H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

corresponding to station No. 7. (Set "68" for address 14

4 - 23

H.)

4 FUNCTIONS

MELSEC-QnA

4.8 Data Link Status Setting When the Master Station Programmable Controller CPU Has an Error

The data link status for when the master station's programmable controller CPU has an "operation-stop error" can be set. The data link between local stations can be continued.

POINT

Even if the master station programmable controller CPU has an "operation-stop error", the data link continues.

[Setting method] Set to the "operation specification when the CPU is down (address 6 parameter information area of the master station's buffer memory

0......Stop (default)

1......Continue

H)" in the

4 - 24

Mitsubishi Electronics AJ61BT11, AJ61QBT11, A1SJ61BT11, A1SJ61QBT11 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

• SAFETY PRECAUTIONS •

• CONDITIONS OF USE FOR THE PRODUCT •

REVISIONS

INTRODUCTION

CONTENTS

MANUAL

COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES

1. OVERVIEW

1.1 How to Use This Manual

1.2 Characteristics

1.3 Communication Overview

1.3.1 Communication between the master station and remote I/O station

1.3.2 Communication between the master station and remote device station

1.3.3 Communication between the master station and local station

1.3.4 Compound system communication

1.4 Number of Occupied Stations and Station Number, Number of Modules and Number of Stations

1.5 Generic Terms and Abbreviations

2. SYSTEM CONFIGURATION

2.1 Total Configuration

2.2 Applicable System

2.2.1 Applicable CPU and number of modules that can be installed

2.2.2 Precautions when configuring a system

2.2.3 List of system equipment restricted by master/local module versions

2.2.4 About Ver. 1.10

3. SPECIFICATION

3.1 General Specification

3.2 Performance Specifications

3.2.1 Maximum overall cable distance (for Ver. 1.00)

3.2.2 Maximum overall cable distance (for Ver. 1.10)

3.3 CC-Link Dedicated Cable

3.4 I/O Signals to the Programmable Controller CPU

3.4.1 I/O signal list

3.4.2 I/O signal details

3.5 Buffer Memory

3.5.1 Buffer memory list

3.5.2 Buffer memory details

4. FUNCTIONS

4.1 Function List

4.2 Communication Between the Master Station and Remote I/O Station

4.3 Communication Between the Master Station and Remote Device Station

4.4 Communication Between the Master Station and Local Station

4.5 Communication in Compound Systems

4.6 Reserved Station Function

4.7 Error Invalid Station Function

4.8 Data Link Status Setting When the Master Station Programmable Controller CPU Has an Error