Mitsubishi MELSEC-L Series 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.

The precautions given in this manual are concerned with this product only. For the safety precautions of the

programmable controller system, refer to the user's manual for the CPU module used.

In this manual, the safety precautions are classified into two levels: " WARNING" and " CAUTION".

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

●For the operating status of each station after a communication failure in the data link, refer to Page 53,

Section 8.1 in this manual. Incorrect output or malfunction due to a communication failure may result

in an accident.

●When connecting a peripheral with the CPU module or connecting a personal computer with an

intelligent function module to modify data of a running programmable controller, configure an interlock

circuit in the program to ensure that the entire system will always operate safely. For other forms of

control (such as program modification or operating status change) of a running programmable

controller, read the relevant manuals carefully and ensure that the operation is safe before

proceeding.

Especially, when a remote programmable controller is controlled by an external device, immediate

action cannot be taken if a problem occurs in the programmable controller due to a communication

failure. To prevent this, configure an interlock circuit in the program, and determine corrective actions

to be taken between the external device and CPU module in case of a communication failure.

●Do not write any data to the "system area" of the buffer memory in the intelligent function module.

Also, do not use any "use prohibited" signal as an output signal from the CPU module to the intelligent

function module. Doing so may cause malfunction of the programmable controller system.

WARNING

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 minor or moderate injury or property damage.

[Design Precautions]

[Installation Precautions]

[Wiring Precautions]

WARNING

●If a communication cable is disconnected, the network becomes unstable, causing communication

failure in multiple stations. Configure an interlock circuit in the program to ensure that the entire

system will always operate safely even if communications fail. Incorrect output or malfunction due to a

communication failure may result in an accident.

CAUTION

●Do not install the control lines or communication cables together with the main circuit lines or power

cables. Keep a distance of 100mm or more between them. Failure to do so may result in malfunction

due to noise.

WARNING

●Shut off the external power supply (all phases) used in the system before mounting or removing a

module. Failure to do so may result in electric shock or cause the module to fail or malfunction.

CAUTION

●Use the programmable controller in an environment that meets the general specifications in the Safety

Guidelines provided with the CPU module or head module. Failure to do so may result in electric

shock, fire, malfunction, or damage to or deterioration of the product.

●To interconnect modules, engage the respective connectors and securely lock the module joint levers.

Incorrect interconnection may cause malfunction, failure, or drop of the module.

●Do not directly touch any conductive parts and electronic components of the module.

Doing so can cause malfunction or failure of the module.

WARNING

●Shut off the external power supply (all phases) used in the system before wiring. Failure to do so may

result in electric shock or cause the module to fail or malfunction.

[Wiring Precautions]

[Startup and Maintenance Precautions]

[Disposal Precautions]

CAUTION

●Do not install the control lines or communication cables together with the main circuit lines or power

cables. Failure to do so may result in malfunction due to noise.

●Place the cables in a duct or clamp them. If not, dangling cable 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. For the cable

with connector, hold the connector part of the cable. For the cable connected to the terminal block,

loosen the terminal screw. Pulling the cable connected to the module may result in malfunction or

damage to the module or cable.

●Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter can

cause a fire, failure, or malfunction.

●A protective film is attached to the top of the module to prevent foreign matter, such as wire chips,

from entering the module during wiring. Do not remove the film during wiring. Remove it for heat

dissipation before system operation.

●Use cables specified by CC-Link Partner Association for a CC-Link/LT system. If not, the performance

of the CC-Link/LT system is not guaranteed.

For network wiring, follow the specifications in this manual. If not, normal data transmission is not

guaranteed.

WARNING

●Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction.

●Shut off the external power supply (all phases) used in the system before cleaning the module. Failure

to do so may result in electric shock.

CAUTION

●Do not disassemble or modify the modules. Doing so may cause failure, malfunction, injury, or a fire.

●Shut off the external power supply (all phases) used in the system before mounting or removing a

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

●After the first use of the module, the number of connections/disconnections is limited to 50 times (in

accordance with IEC 61131-2). Exceeding the limit may cause malfunction.

●Before handling the module, touch a conducting object such as a grounded metal to discharge the

static electricity from the human body.

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

CAUTION

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

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;

• 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.

• 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.

• 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.

INTRODUCTION

Thank you for purchasing the Mitsubishi MELSEC-L series programmable controllers.

This manual describes the functions and programming of the LJ61CL12 CC-Link/LT master module (hereafter

abbreviated as master module).

Before using this product, please read this manual and the relevant manuals carefully and develop familiarity with the

functions and performance of the MELSEC-L series programmable controller to handle the product correctly.

When applying the program examples introduced in this manual to an actual system, ensure the applicability and

confirm that it will not cause system control problems.

Please make sure that the end users read this manual.

Remark

Unless otherwise specified, this manual describes the program examples in which the I/O numbers of X/Y10 to X/Y1F are

assigned for a master module. I/O numbers must be assigned to apply the program examples introduced in this manual to

an actual system.

For I/O number assignment, refer to the following.

MELSEC-L CPU Module User's Manual (Function Explanation, Program Fundamentals)

COMPLIANCE WITH EMC AND LOW VOLTAGE

DIRECTIVES

(1) Method of ensuring compliance

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 the manual included with

the CPU module or head module.

The CE mark on the side of the programmable controller indicates compliance with EMC and Low Voltage

Directives.

(2) Additional measures

To ensure that this product maintains EMC and Low Voltage Directives, please refer to the manual included with

the CPU module or head module.

RELEVANT MANUALS

(1) CPU module user's manual

(2) Head module user's manual

(3) Operating manual

Manual name

<manual number (model code)> Description

MELSEC-L CPU Module User's Manual

(Hardware Design, Maintenance and Inspection)

<SH-080890ENG, 13JZ36>

Specifications of the CPU modules, power supply modules, display unit, SD

memory cards, and batteries, information on how to establish a system,

maintenance and inspection, and troubleshooting

MELSEC-L CPU Module User's Manual

(Function Explanation, Program Fundamentals)

<SH-080889ENG, 13JZ35>

Functions and devices of the CPU module, and programming

Manual name

<manual number (model code)> Description

MELSEC-L CC-Link IE Field Network Head Module User's Manual

<SH-080919ENG, 13JZ48>

Specifications, procedures before operation, system configuration, installation,

wiring, settings, and troubleshooting of the head module

Manual name

<manual number (model code>) Description

GX Works2 Version1 Operating Manual (Common)

<SH-080779ENG, 13JU63>

System configuration, parameter settings, and online operations (common to

Simple project and Structured project) of GX Works2

Memo

CONTENTS

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

MANUAL PAGE ORGANIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

PACKING LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

CHAPTER 1 CHARACTERISTICS OF CC-Link/LT SYSTEM 13

1.1 CC-Link/LT System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

CHAPTER 2 PART NAMES 15

CHAPTER 3 SPECIFICATIONS 17

3.1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2 Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.3 I/O Signal List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.4 Buffer Memory List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

CHAPTER 4 PROCEDURE BEFORE OPERATION 23

CHAPTER 5 SYSTEM CONFIGURATION 25

5.1 Overall Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.2 Applicable System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.3 Precautions for System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

CHAPTER 6 INSTALLATION AND WIRING 32

6.1 Installation Environment and Installation Position of the Module . . . . . . . . . . . . . . . . . . . . . . . 32

6.2 Point Mode Setting and the Number of Occupied I/O Points Setting . . . . . . . . . . . . . . . . . . . . 33

6.3 Connecting Modules with Cables Connecting Modules Using Connection Cables . . . . . . . . .36

6.3.1 Connecting a dedicated flat cable connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.3.2 Connecting a VCTF cable connector/flexible cable connector. . . . . . . . . . . . . . . . . . . . . . . . 40

6.3.3 Using cables of different types together. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6.3.4 Connecting terminating resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.3.5 Checking wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.4 Installing/Removing a Remote Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

6.5 Last Station Number Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

CHAPTER 7 PROGRAMMING 51

7.1 System Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

7.2 Devices Available for Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

7.3 Program Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

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