Mitsubishi QJ71LP21 User manual

(Remote I/O network)

Q Corresponding MELSECNET/H Network System Reference Manual(Remote I/O network)

Q Corresponding MELSECNET/H

Network System

Q Corresponding MELSECNET/H

Network System

Reference Manual (Remote I/O network) Reference Manual

Mitsubishi Programmable

Logic Controller

MODEL

CODE

Q-NET/H-R-I/O-E

13JF96

SH(NA)-080124-G(0503)MEE

QJ71LP21

QJ71LP21-25

QJ71LP21S-25

QJ71LP21G

QJ71LP21GE

QJ71BR11

QJ72LP25-25

QJ72LP25G

QJ72LP25GE

QJ72BR15

Specifications subject to change without notice.

When exported from Japan, this manual does not require application to the

Ministry of Economy, Trade and Industry for service transaction permission.

HEAD OFFICE : 1-8-12, OFFICE TOWER Z 14F HARUMI CHUO-KU 104-6212,JAPAN

NAGOYA WORKS : 1-14 , YADA-MINAMI 5-CHOME , HIGASHI-KU, NAGOYA , JAPAN

A - 1 A - 1

•SAFETY PRECAUTIONS •

(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 store this manual in a safe place and make it accessible when required. Always forward it to the

end user.

[Design Precautions]

!DANGER

•When the network develops a communication error, the station with the communication error will

enter into the following status.

Use the communication status data to form an interlock circuit in the sequence program that will

operate the system on the safe side. Erroneous output or malfunctioning could cause accidents.

(1) The remote master station will hold the data from before the communication error.

(2) The remote I/O station turns off all outputs. The output module of the remote I/O station can

clear/hold the output status at the time of error by using the remote I/O module parameters.

As the parameters are set to "clear" by default, the output module turns off the outputs at the

time of error. If it is required to hold the output in order to operate the system safely, set the

parameters to "hold".

•If a coaxial cable is disconnected, this may destabilize the line, and a data link communication

error may occur in multiple stations. Make sure to create an interlock circuit in the sequence

program so that the system will operate safely even if the above error occurs. Failure to do so

may result in a serous accident due to faulty output or malfunctions.

A - 2 A - 2

[Design Precautions]

!DANGER

•When performing control operations to a PLC (modifying data) in operation by connecting GX

Developer to the CPU module or connecting personal computers to the intelligent functional

modules, configure an interlocking circuit in a sequence program so that the safety of the overall

system is maintained. Also, before performing other control operations (program modifications

and operating status modifications (status control)) on the PLC in operation, be sure to read the

manual thoroughly and confirm the safety. Especially if the above mentioned control operations

are performed from an external device to a remote PLC, problems arising on the PLC side may

not be dealt with immediately due to abnormal data communication. Thus, in addition to

configuring an interlocking circuit in a sequence program, determine how the system should

handle data communication errors between the PLC CPU and external devices.

!CAUTION

•Always reset the CPU module after changing the parameters for the CPU module or the remote

I/O module. If this is not done, data from before the change could cause malfunctioning.

•Do not bundle the control wires and communication cables with the main circuit or power wires,

or install them close to each other. They should be installed at least 100 mm (3.94 in.) away

from each other. Failure to do so may generate noise that may cause malfunctions.

[Installation Precautions]

!CAUTION

•Use the PLC in the operating environment that meets the general specifications described in the

user's manual for the CPU module used. Using the PLC in any other operating environments

may cause electric shocks, fires or malfunctions, or may damage or degrade the product.

•While holding the module mounting lever at the bottom of module, insert the module fixing tab

into the fixing hole in the base unit. Then secure the module using the module fixing hole as a

support point.

Incorrect mounting may cause malfunctions, a failure or a drop of the module.

In an environment of frequent vibrations, secure the module with the screw.

Tighten the screw within the specified torque range.

If the screw is too loose, it may cause a drop of the module, a short circuit or malfunctions.

If too tight, it may damage the screw and/or the module, resulting in a drop of the module, a

short circuit or malfunctions.

•Completely turn off the externally supplied power used in the system before mounting or

removing the module. Failure to do so may damage the product.

For remote I/O stations of function version D or later, online module change can be performed.

However, the modules which can be replaced online are limited, and replacement procedures

are determined for each module. For details, refer to the section of online module replacement

in this manual.

A - 3 A - 3

[Installation Precautions]

!CAUTION

•Do not directly touch the conducting parts and electronic parts of the module. This may cause

the module to malfunction or fail.

[Wiring Precautions]

!DANGER

•Completely turn off the externally supplied power used in the system when installing or placing

wiring. Failure to do so may cause electric shocks or damage the product.

!CAUTION

•Be sure to ground the FG terminals independently for PLC by class D (class 3) or higher.

Failure to do so may cause malfunctions.

•When connecting cables to the terminal block for external power supply, check the rated voltage

and terminal layout of the product for correct wiring.

Connecting a cable to power supply of different rating or incorrect wiring may cause a fire or

fault.

•Tighten the terminal screws with the specified torque.

Loose tightening may lead to a short circuit, fire or malfunction.

•Solder coaxial cable connectors properly. Incomplete soldering may result in malfunctioning.

•Be careful not to let foreign particles such as chaff and wire chips get inside the module. They

may cause a fire, mechanical breakdown or malfunction.

•The top surface of the module is covered with a protective film to prevent foreign objects such as

wire chips from entering the module during wiring work. Do not remove this film until all the

wiring work is complete. Before operating the system, be sure to remove the film to provide

adequate heat ventilation.

•Make sure to place the communication and power cables to be connected to the module in a

duct or fasten them using a clamp. If the cables are not placed in a duct or not fastened with a

clamp, their positions may become unstable and may move, or they may be pulled

inadvertently. This may damage the module and the cables or cause the module to malfunction

because of faulty cable connections.

•When disconnecting the communication and power cables from the module, do not pull the

cables by hand. When disconnecting a cable with a connector, hold the connector to the module

by hand and pull it out to remove the cable. When disconnecting a cable connected to a terminal

block, loosen the screws on the terminal block first before removing the cable. If a cable is

pulled while being connected to the module, it may cause the module to malfunction or damage

the module and cables.

A - 4 A - 4

[Setup and Maintenance Precautions]

!CAUTION

•Please read this manual thoroughly and confirm the safety enough before starting online

operations (especially, program modifications, forced outputs, and operating status

modifications), which are performed by connecting GX Developer via the MELSECNET/H

network system to a CPU module running on another station. Performing incorrect online

operations may damage the machinery or result in accidents.

•Never disassemble or modify the module. This may cause breakdowns, malfunctions, injuries or fire.

•Use any radio communication device such as a cellular phone or a PHS phone more than 25cm

(9.85 inch) away in all directions of the PLC.

Not doing so can cause a malfunction.

•Completely turn off the externally supplied power used in the system before mounting or

removing the module. Failure to do so may damage the module or result in malfunctions.

For the remote I/O network systems of function version D or later, online module change can be

performed. However, the modules which can be replaced online are limited, and replacement

procedures are determined for each module. For details, refer to the section of online module

replacement in this manual.

•Do not mount/remove the module onto/from base unit more than 50 times (IEC61131-2-

compliant), after the first use of the product.

Failure to do so may cause the module to malfunction due to poor contact of connector.

•Do not touch the terminals while the power is on. This maycausebreakdowns,malfunctions,

injuries or fire.

•Switch off all phases of the externally supplied power used in the system when cleaning the

module or retightening the terminal or module mounting screws. Failure to completely shut off

all phases of the external power supply may cause module breakdowns and malfunctions. If the

screws are loose, it may cause the module to short-circuit, malfunction or fall off. If the screws

are tightened excessively, it may damage the screws and cause the module to short circuit,

malfunction or fall off.

•Before handling the module, always touch grounded metal, etc. to discharge static electricity

from the human body.

Failure to do so can cause the module to fail or malfunction.

[Disposal Precautions]

!CAUTION

•When disposing of this product, treat it as industrial waste.

A - 5 A - 5

REVISIONS The manual number is given on the bottom left of the back cover.

Print Date Manual Number Revision

Oct., 2000 SH (NA) -080124-A First printing

May., 2001 SH (NA) -080124-B Model addition

QJ71LP21G, QJ72LP25G, QJ71LP21GE, QJ72LP25GE

Correction

Product Components, About The Generic Terms And Abbreviations,

Chapter 1, Section 1.2, 2.4, 3.1.1, 3.1.2, 3.2.1, 3.2.2, 3.3.2, 4.2.1, 4.2.2,

4.8.2, Chapter 5, Section 5.1.5, 5.2.1, 6.1.2, 6.2.1, 6.3, 6.4, 7.1.1, 7.8,

8.1, 8.1.1, 8.1.4, 8.3.1, 8.3.2, Appendix 2, 3, 4, 5, Index

Addition

Section 8.2.6

Apr., 2002 SH (NA) -080124-C Correction

Section 1.2, 1.3, 2.3.1, 2.3.2, 2.3.3, 2.5, 3.1.1, 3.1.2, 3.2, 3.3.2, 4.2.1,

6.1.1, 6.4, Chapter 7, Section 8.4, Appendix 2, 3

Changed item numbers

Section 2.3 Section 2.4, Section 2.4 Section 2.5

Addition

Section 7.10

Nov., 2002 SH (NA) -080124-D Model addition

QJ71LP21S-25

Correction

SAFETY PRECAUTIONS, CONTENTS,

Generic Terms And Abbreviations, Product Components,

Section 1.1, 1.2, 3.1.1, 3.1.2, 4.1.2, 4.8.1, 4.8.2, 7.1.1, 8.1.4,

Appendix 2, 3

Apr., 2003 SH (NA) -080124-E Correction

SAFETY PRECAUTIONS, About Manuals, Section 1.2, 2.1.2, 2.2.2,

2.3.2, 2.5, 3.1.1, 3.1.2, 3.2.2, 3.3.1, Chapter 5, Section 5.1.3, 5.1.5, 6.2,

6.3, 6.4, 6.5, 8.1, 8.2, 8.2.1, 8.2.5, 8.3.1

A - 6 A - 6

The manual number is given on the bottom left of the back cover.

Print Date Manual Number Revision

Jun., 2004 SH (NA) -080124-F Correction

SAFETY PRECAUTIONS, Manuals, Generic Terms And Abbreviations,

Section 1.2, 2.1.2, 2.2.2, 2.3.2, 2.4.2, 2.5, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.2,

3.2.2, 4.2.2, 4.9.1, 4.10, 4.10.1, 4.10.2, 4.10.3, Chapter 5, Section 5.1.1,

5.2, 5.2.1, 6.4, 6.5, Chapter 7, Section 8.1, 8.1.1, 8.1.2, 8.1.3, 8.1.4,

8.2.1, 8.2.3, 8.2.5, 8.2.7, 8.3.1, 8.3.2, Appendix 2, 3

Addition

Section 1.4, 2.4, 2.7, 3.3.3, 3.3.4, 7.11, 7.12, 8.2.7, Appendix 7

Changed section No.

Section 2.4 Section 2.5, Section 2.5 Section 2.6

Mar., 2005 SH (NA) -080124-G Correction

Safety Precautions, Conformation to the EMC Directive and Low Voltage

Instruction, Product Configuration, Section 1.1, 1.2, 2.6, 2.7, 3.1.1, 3.1.2,

3.1.4, 3.2.2, 3.3.2, 4.2.1, 4.2.2, 4.3, 4.4, 4.8.1, 4.8.2, 4.9.1, 4.10.1, 5.1.4,

6.1.1, 6.2, 6.2.2, 6.3, 7.4, 8.1, 8.1.2, 8.1.3, 8.2, 8.2.1, 8.3.1, 8.3.2,

Appendix 2, 3, 4, 5, 7

Addition

Section 8.2.8

Sep., 2005 SH (NA) -080124-H Correction

Generic Terms And Abbreviations, Section 1.2, Section 2.5, Section 3.2,

3.2.2, 3.3.2, Section 5.1.5, 5.2.1, Section 6.3, 6.5, Section 7.12, Section

8.2, 8.2.5, 8.3.1, 8.3.2, Appendix 3, 4, 5

Japanese Manual Version SH-080123-J

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent

licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property

rights which may occur as a result of using the contents noted in this manual.

2000 MITSUBISHI ELECTRIC CORPORATION

A - 7 A - 7

INTRODUCTION

Thank you for purchasing the MELSEC-Q series PLC.

Before using the equipment, please read this manual carefully to develop full familiarity with the functions

and performance of the Q series PLC you have purchased, so as to ensure correct use.

Please forward a copy of this manual to the end user.

CONTENTS

SAFETY PRECAUTIONS..............................................................................................................................A- 1

REVISIONS....................................................................................................................................................A- 5

CONTENTS....................................................................................................................................................A- 7

Manuals ....................................................................................................................................................A-11

Conformation to the EMC Directive and Low Voltage Instruction ................................................................A-11

Generic Terms And Abbreviations.................................................................................................................A-12

Product Components .....................................................................................................................................A-13

1 OVERVIEW 1- 1 to 1- 9

1.1 Overview..................................................................................................................................................1- 1

1.2 Features ..................................................................................................................................................1- 2

1.3 Abbreviations Used in the Text, Tables and Diagrams of This Manual................................................1- 9

1.4 Functions Added/Changed with Upgrade to Function Version D..........................................................1- 9

2 SYSTEM CONFIGURATION 2- 1 to 2-17

2.1 Single Remote I/O Networks..................................................................................................................2- 1

2.1.1 Configuration....................................................................................................................................2- 1

2.1.2 Setting items.....................................................................................................................................2- 2

2.1.3 Available device ranges...................................................................................................................2- 3

2.2 Multiple Remote I/O Network (QnPHCPU Only)....................................................................................2- 4

2.2.1 Configuration....................................................................................................................................2- 4

2.2.2 Setting items.....................................................................................................................................2- 5

2.2.3 Available device ranges...................................................................................................................2- 6

2.3 Multiplexed Remote I/O Network for Redundant System (QnPRHCPU Only).....................................2- 7

2.3.1 Configuration....................................................................................................................................2- 7

2.3.2 Setting items.....................................................................................................................................2- 8

2.3.3 Available device ranges...................................................................................................................2- 9

2.4 Multiple Remote I/O Network..................................................................................................................2-10

2.4.1 Configuration....................................................................................................................................2-10

2.4.2 Setting items.....................................................................................................................................2-10

2.4.3 Available device ranges...................................................................................................................2-11

2.5 Precautions when Configuring the System............................................................................................2-12

2.6 When Using a Multiple CPU System......................................................................................................2-15

2.7 Checking Function Version and Serial No. ............................................................................................2-17

3 SPECIFICATIONS 3- 1 to 3-51

3.1 Performance Specifications....................................................................................................................3- 1

3.1.1 Optical loop system performance specifications.............................................................................3- 1

A - 8 A - 8

3.1.2 Coaxial cable system performance specifications..........................................................................3- 2

3.1.3 Optical fiber cable specifications .....................................................................................................3- 3

3.1.4 Coaxial cable specifications.............................................................................................................3- 4

3.2 Function Specifications...........................................................................................................................3- 7

3.2.1 Cyclic transmission function (Periodic communication)..................................................................3- 8

(1) Communicating with input/output module.......................................................................................3- 8

(2) Communicating with intelligent function module.............................................................................3- 9

3.2.2 RAS functions...................................................................................................................................3-14

(1) Output reset function for communication errors .............................................................................3-14

(2) Automatic return function.................................................................................................................3-14

(3) Loopback function (Optical loop system)........................................................................................3-15

(4) Station detach function (Coaxial bus systems)...............................................................................3-17

(5) Transient transmission enabled even at CPU module error..........................................................3-18

(6) Checking the transient transmission abnormal direction time........................................................3-19

(7) Diagnostic functions.........................................................................................................................3-20

(8) Configuration of a redundant power supply on a remote I/O station.............................................3-21

(9) Online module change in a remote I/O station...............................................................................3-24

3.3 Link Data Send/Receive Processing Time Specifications.....................................................................3-30

3.3.1 Link data send/receive processing..................................................................................................3-30

3.3.2 Transmission delay time..................................................................................................................3-33

3.3.3 Switching time from the multiplexed remote master station to the multiplexed remote

sub-master station in a multiplexed remote I/O network................................................................3-46

3.3.4 Output holding time during system switching in the multiplexed remote I/O network for

redundant system............................................................................................................................3-47

4 SETUP AND PROCEDURES BEFORE STARTING THE OPERATION 4- 1 to 4-28

4.1 Procedures Before Starting the Operation.............................................................................................4- 1

4.2 Network Module Names and Settings....................................................................................................4- 2

4.2.1 QJ71LP21, QJ71LP21-25, QJ71LP21G, QJ71LP21GE, QJ71BR11 (Remote master station)...4- 2

4.2.2 QJ72LP25-25, QJ72LP25G, QJ72LP25GE, QJ72BR15 ...............................................................4- 5

4.3 Installing and Uninstalling the Module....................................................................................................4- 7

4.4 Stopping the CPU (Unintentional Output Prevention) ...........................................................................4- 9

4.5 Checking the Input Power Supply Voltage.............................................................................................4- 9

4.6 Powering On............................................................................................................................................4- 9

4.6.1 Checking the on status of the POWER LED of the power supply module ....................................4- 9

4.6.2 Checking the on status of the RUN LED of the network module...................................................4- 9

4.7 Standalone Check of the Network Module (Offline Tests) ....................................................................4-10

4.7.1 Self-loopback test.............................................................................................................................4-11

4.7.2 Internal self-loopback test................................................................................................................4-12

4.7.3 Hardware test...................................................................................................................................4-13

4.8 Cable Connections..................................................................................................................................4-14

4.8.1 Optical loop system..........................................................................................................................4-14

4.8.2 Coaxial bus system..........................................................................................................................4-16

4.9 Offline Tests from GX Developer............................................................................................................4-21

4.9.1 Forward loop/reverse loop test (Remote master station only)........................................................4-21

4.10 Network Diagnostics from GX Developer (Online Tests)....................................................................4-24

4.10.1 Loop test (optical loop system only)..............................................................................................4-25

4.10.2 Setup confirmation test..................................................................................................................4-26

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