Mitsubishi AJ65BT-R2 User manual

A - 1
SAFETY INSTRUCTIONS
(Always read these instructions before using this equipment.)
Before using this product, please read this manual and the relevant manuals introduced in this manual
carefully and pay full attention to safety to handle the product correctly.
The instructions given in this manual are concerned with this product. For the safety instructions of the
programmable controller system, please read the CPU module user's manual.
In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".
!DANGER
CAUTION
!
Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in medium or slight personal injury or physical damage.
Note that the !CAUTION level may lead to a serious consequence according to the circumstances.
Always follow the instructions of both levels because they are important to personal safety.
Please save this manual to make it accessible when required and always forward it to the end user.
[Design Instructions]
!DANGER
If a communication error occurs in the data link, the following will occur in the station having the
communication error.
Use the communication status information, and configure an interlock circuit in the sequence
program so that the system will operate safely.
Incorrect outputs and incorrect operations can lead to accidents.
(1) All points of the general-purpose input from this module will turn OFF.
(2) All points of the general-purpose output from this module will turn OFF.
The input/output may turn ON or OFF depending on the module trouble.
Provide a circuit that externally monitors input/output signals that could lead to serious trouble.

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!CAUTION
Do not bind the control wire or communication cable with the main circuit or power wire, or
place the control wire near these.
Separate by at least 100mm or more.
Failure to observe this could lead to malfunctions caused by noise.
Always connect the master module and CC-Link dedicated cable at the data link terminal block.
If the data link terminal block and general-purpose input/output terminal block are incorrectly
inserted, module trouble could occur.
Data link terminal
bloc
k
General-purpose input/
output terminal block
[Mounting Instructions]
!CAUTION
Use this module within the general specification environment described in the manual.
Use in an environment outside the general specification range could lead to electric shocks,
fires, malfunctioning, product damage or deterioration.
Always connect the crimp, press-fit or solder the connector wire connections with the maker-
designated tools, and securely connect the connector to the module.
An incomplete connection could lead to short-circuits or malfunctioning.
Do not directly touch the conductive section of the module.
Failure to observe this could lead to module malfunctioning or trouble.
Securely fix the module with the DIN rail or installation screw. Tighten the installation screw
within the designated torque range.
A loose screw could lead to dropping, short-circuiting or malfunctioning.
If the screw is too tight, dropping or short-circuiting could occur due to screw damage.
Securely mount the connector of each connection cable to the mounting section.
An incomplete connection could lead to malfunctioning caused by an incorrect contact.

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[Wiring Instructions]
!CAUTION
Before starting installation or wiring work, be sure to shut off all phases of external power supply
used by the system.
Failure to shut off all phases could lead to electric shocks, product damage or malfunctioning.
Always install the terminal covers enclosed with the product before turning ON the power or
operating the product after installation or wiring work.
Failure to install the terminal cover could lead to electric shocks.
Always ground the FG terminal with Class D grounding (Class 3 grounding) dedicated of the
programmable controller.
Failure to do so could lead to malfunctioning.
Always confirm the product's rated voltage and terminal layout before wiring the module.
Connecting with a power supply other than the rated power supply, or incorrect wiring could
lead to fires or trouble.
Tighten the terminal screws within the specified torque range.
A loose terminal screw could lead to short-circuiting or malfunctioning.
If the terminal screw is too tight, dropping or short-circuiting could occur due to screw damage.
Make sure that foreign matter, such as cutting chips or wire scraps, do not enter the module.
Failure to observe this could lead to fires, trouble or malfunctioning.
The communication cables and power supply cable connected to the module must be placed in
a conduit or fixed with a clamp.
If the cable is not placed in a conduit or fixed with a clamp, the module or cable could be
damaged by the cable variation, movement or unintentional pulling leading to malfunctioning
caused by an improper cable connection.
Do not install the control lines together with the communication cables, or bring them close to
each other. Failure to do so may cause malfunctions due to noise.
Do not remove the communication cable or power supply cable connected to the module by
pulling on the cable section.
If the cable has a connector, hold the connector at the section connected to the module, and
remove.
If the cable does not have a connector, loosen the screws at the section connected to the
module, and remove.
Pulling on the cable while connected to the module could lead to module or cable damage, or
malfunctioning caused by an improper cable connection.

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[Startup/Maintenance Instructions]
!CAUTION
When power is ON, do not touch the terminals.
Doing so can cause an electric shock or malfunction.
Before cleaning or tightening the terminal screws and module mounting screws, be sure to shut
off all phases of external power supply used by the system.
Failure to shut off all phases could lead to module trouble or malfunctioning.
Do not touch the connector inside the lid at the front of the module.
Failure to observe this could lead to module trouble or malfunctioning.
Never disassemble or modify the module.
Failure to observe this could lead to trouble, malfunctioning, injuries or fires.
Do not drop or apply any strong impact to the module. Doing so may damage the module.
Before installing or removing the module on the panel, be sure to shut off all phases of external
power supply used by the system.
Failure to shut off all phases could lead to module trouble or malfunctioning.
Do not install/remove the terminal block more than 50 times after the first use of the product.
(IEC 61131-2 compliant)
[Disposal Instructions]
!CAUTION
When disposing of the product, handle it as industrial waste.

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REVISIONS
* The instruction manual No. is described on the lower left of the back cover of this instruction manual.
Date of print * Instruction manual No. Revision details
Jul., 1997 IB (NA)-66781-A Initial print
Apr., 1999 IB (NA)-66781-B Complete review
Sep., 2002 IB (NA)-66781-C Equivalent to Japanese version D
Addition of description for use of the QCPU (Q mode)
Addition
Compliance with the EMC/Low Voltage Directive, Section 4.5.1,
Section 5.2.2
Deletion
Section 2.3
Partial Correction
SAFETY INSTRUCTIONS, About Manuals, Chapter 1, Section 2.1,
Section 2.2, Section 3.1, Section 3.2, Section 3.3, Section 3.4, Section
3.7, Section 4.1, Section 4.2, Section 4.4, Section 4.5.2, Section 4.5.3,
Section 4.6, Section 5.2, Section 5.6.2, Section 8.3, Section 9.1,
Section 9.2.4, Section 10.1.2, Section 10.2
Nov., 2005 IB (NA)-66781-D Partial Correction
SAFETY INSTRUCTIONS, About Manuals, Generic Terms and
Abbreviations, Definitions and Details of Terms, Section 1.1, Section
2.1, 2.2, Section 3.1, 3.2, 3.4, 3.6.1, 3.6.2, 3.7, 3.8, 3.9.1, 3.9.2,
Section 4.2, 4.4, 4.5.2, 4.5.3, Section 5.2.1, 5.3, 5.4, 5.5.1, 5.5.2,
5.7.1, 5.7.2, 5.7.3, 5.7.4, Section 6.3.1, 6.3.2, 6.4.1, 6.4.2, Section
7.3.1, 7.4.3, 7.5.2, Section 8.2, 8.3, 8.4, 8.5, 8.9.2, Section 9.1, 9.2.1,
9.2.2, 9.2.3, 9.2.4, 9.3.2, 9.3.3, Section 10.1.2, 10.3
Addition
INDEX
Oct., 2006 IB (NA)-66781-E Partial Correction
SAFETY INSTRUCTIONS, Section 3.2, 3.4, 4.4, 7.3
Nov., 2007 IB (NA)-66781-F Change of a term
"PLC" was changed to "programmable controller".
Partial Correction
Section 4.2, 4.4, Section 5.1, 5.2.1, 5.5.1, 5.6.2, 5.7.3, Section 6.2,
6.3, 6.4.1, 6.4.2, Section 7.4.3, Section 8.10, Section 9.2.1, 9.2.2,
9.2.4, 9.3.1, 9.3.3, Section 10.1.2, 10.3, 10.4
Japanese Manual Version SH-3633-G
This manual does not guarantee the implementation of industrial rights or other rights, and does not authorize the
implementation rights. Mitsubishi shall not be held liable for any problems regarding industrial rights that occur through
the use of the contents given in this manual.
©1997 MITSUBISHI ELECTRIC CORPORATION

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INTRODUCTION
Thank you for purchasing the Mitsubishi general-purpose programmable controller MELSEC-A.
Always read through this manual, and fully comprehend the functions and performance of the A Series
programmable controller before starting use to ensure correct usage of this product.
Make sure that this manual is delivered to the final user.
CONTENTS
Safety Instructions..........................................................................................................................................A- 1
Revisions ........................................................................................................................................................A- 5
About Manuals ...............................................................................................................................................A- 9
Compliance with the EMC/Low Voltage Directive.........................................................................................A- 9
Using This Manual.........................................................................................................................................A- 10
Generic Terms and Abbreviations ................................................................................................................A- 11
Definitions and Details of Terms...................................................................................................................A- 12
1. OUTLINE 1- 1 to 1- 4
1.1 Features ................................................................................................................................................... 1- 2
2. SYSTEM CONFIGURATION 2- 1 to 2- 2
2.1 System configuration ............................................................................................................................... 2- 1
2.2 Applicable systems .................................................................................................................................. 2- 2
3. SPECIFICATIONS 3- 1 to 3- 26
3.1 General specifications.............................................................................................................................. 3- 1
3.2 Performance specifications...................................................................................................................... 3- 2
3.3 RS-232-C interface specifications ........................................................................................................... 3- 3
3.4 General-purpose input/output specifications........................................................................................... 3- 4
3.5 List of functions ........................................................................................................................................ 3- 6
3.6 Input/output signals for master module ................................................................................................... 3- 7
3.6.1 List of input/output signals................................................................................................................. 3- 7
3.6.2 Details of input/output signals ........................................................................................................... 3- 8
3.7 R2 buffer memory list.............................................................................................................................. 3- 13
3.8 Transmission delay time ......................................................................................................................... 3- 19
3.9 Transmission/reception time................................................................................................................... 3- 20
3.9.1 When using buffer memory automatic update function .................................................................. 3- 20
3.9.2 When using transmission/reception buffer ...................................................................................... 3- 23
4. PROCEDURES AND SETTINGS BEFORE OPERATIION 4- 1 to 4- 12
4.1 Procedures before operation ................................................................................................................... 4- 1
4.2 Precautions for handling .......................................................................................................................... 4- 3
4.3 Installation environment ........................................................................................................................... 4- 5
4.4 Names of each part, and settings............................................................................................................ 4- 6
4.5 Wiring........................................................................................................................................................ 4- 8

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4.5.1 Precautions for handling the CC-Link dedicated cables.................................................................. 4- 8
4.5.2 Connection of the CC-Link dedicated cables ................................................................................... 4- 8
4.5.3 Connection with external device ....................................................................................................... 4- 9
4.6 Checking the module’s state (Hardware test) ........................................................................................ 4- 11
5. PRELIMINARY INFORMATION 5- 1 to 5- 46
5.1 System used in this manual..................................................................................................................... 5- 1
5.2 Programming Precautions ....................................................................................................................... 5- 3
5.2.1 About bank changing of the A series master module ...................................................................... 5- 3
5.2.2 About dedicated commands for use of the buffer memory automatic update function .................. 5- 5
5.3 Program basic format............................................................................................................................... 5- 6
5.4 Initializing the master station.................................................................................................................... 5- 9
5.5 Initializing the R2 ..................................................................................................................................... 5- 12
5.5.1 Using the buffer memory automatic update function ...................................................................... 5- 12
5.5.2 Using the transmission/reception buffer .......................................................................................... 5- 15
5.6 Reading and writing the buffer memory (using the buffer memory automatic update function) .......... 5- 18
5.6.1 Outline............................................................................................................................................... 5- 18
5.6.2 Understanding the roles of each area ............................................................................................. 5- 19
5.7 Reading and writing the buffer memory (using the transmission/reception buffer) .............................. 5- 28
5.7.1 Outline............................................................................................................................................... 5- 28
5.7.2 About control data ............................................................................................................................ 5- 29
5.7.3 Reading the R2 buffer memory........................................................................................................ 5- 40
5.7.4 Writing to the R2 buffer memory...................................................................................................... 5- 43
6. EXCHANGING DATA WITH AN EXTERNAL DEVICE 6- 1 to 6- 30
6.1 Matters to understand before transmitting data ...................................................................................... 6- 1
6.2 Matters to know before receiving data .................................................................................................... 6- 5
6.3 Exchanging data using the buffer memory automatic update function .................................................. 6- 9
6.3.1 Transmitting data to an external device .......................................................................................... 6- 9
6.3.2 Receiving data from an external device .......................................................................................... 6- 14
6.4 Exchanging data using the transmission/reception buffer.....................................................................6- 18
6.4.1 Transmitting data to an external device .......................................................................................... 6- 18
6.4.2 Receiving data from an external device .......................................................................................... 6- 24
7. USING FRAMES WHEN EXCHANGING DATA 7- 1 to 7- 38
7.1 What are frames?..................................................................................................................................... 7- 1
7.2 Transmitting data using frames ............................................................................................................... 7- 2
7.2.1 Transmitting using transmission frame 1 area ................................................................................. 7- 2
7.2.2 Transmitting using the transmission frame 2 area........................................................................... 7- 4
7.3 Receiving data using frames ................................................................................................................... 7- 6
7.3.1 Reception data .................................................................................................................................. 7- 8
7.3.2 Reading the reception data.............................................................................................................. 7- 10
7.4 Transmitting data at the device and status change ............................................................................... 7- 13
7.4.1 Outline............................................................................................................................................... 7- 13
7.4.2 Devices and statuses that can be designated................................................................................. 7- 14
7.4.3 Setting the R2 buffer memory.......................................................................................................... 7- 15

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7.4.4 Precautions....................................................................................................................................... 7- 21
7.5 Registration frames................................................................................................................................. 7- 22
7.5.1 List of default registration frames..................................................................................................... 7- 23
7.5.2 Details of user registration frames ................................................................................................... 7- 25
8. OTHER FUNCTIONS 8- 1 to 8- 24
8.1 Canceling data communication to an external device ............................................................................ 8- 1
8.2 Forcibly completing reception .................................................................................................................. 8- 3
8.3 Flow control .............................................................................................................................................. 8- 6
8.4 ASCII-BIN conversion of transmission data........................................................................................... 8- 10
8.5 RW update function ................................................................................................................................ 8- 12
8.6 Initializing the R2 ..................................................................................................................................... 8- 15
8.7 Clearing the OS reception area .............................................................................................................. 8- 16
8.8 Registering and initializing the R2 EEPROM ......................................................................................... 8- 19
8.9 Controlling the RS-232-C signal ............................................................................................................. 8- 22
8.9.1 Correspondence of RS-232-C control signal and remote input/output signal ............................... 8- 22
8.9.2 Precautions for using RS-232-C control signal read/write function................................................ 8- 23
8.10 Confirming the R2 switch states and software version........................................................................ 8- 24
9. PROGRAM EXAMPLES 9- 1 to 9- 48
9.1 Conditions for program examples ........................................................................................................... 9- 1
9.2 Example of program for using buffer memory automatic update function ............................................. 9- 2
9.2.1 When using FROM/TO command with ACPU / QCPU-A (A mode) ............................................... 9- 2
9.2.2 When using dedicated commands with ACPU / QCPU-A (A mode) .............................................. 9- 6
9.2.3 When using dedicated commands with QCPU (Q mode) / QnACPU............................................ 9- 11
9.2.4 When using the FROM/TO commands with ACPU / QCPU-A (A mode)
(Three R2 modules connected) ...................................................................................................... 9- 14
9.3 Example of program for using transmission/reception buffer ................................................................ 9- 28
9.3.1 When using FROM/TO command with ACPU / QCPU-A (A mode) .............................................. 9- 28
9.3.2 When using dedicated commands with ACPU / QCPU-A (A mode) ............................................. 9- 37
9.3.3 When using dedicated commands with QCPU (Q mode) / QnACPU............................................ 9- 43
10. TROUBLESHOOTING 10- 1 to 10- 12
10.1 Error codes........................................................................................................................................... 10- 1
10.1.1 Error code storage area ................................................................................................................ 10- 1
10.1.2 List of error codes.......................................................................................................................... 10- 2
10.2 Confirming the error with the LED ....................................................................................................... 10- 5
10.3 Examples of trouble in general-purpose input circuit.......................................................................... 10- 7
10.4 Troubleshooting per symptom ............................................................................................................. 10- 9
10.5 Troubleshooting when the master station's ERR. LED flashes......................................................... 10- 10
APPENDIX Appendix- 1 to Appendix- 2
Appendix 1 Outline dimension drawing ............................................................................................Appendix- 1
INDEX INDEX- 1 to INDEX 3