Mitsubishi Electric L26CPU-BT Manuale utente

MELSEC-L CC-Link System Master/Local Module

User's Manual

-L26CPU-BT

-L26CPU-PBT

-LJ61BT11

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.

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]

WARNING

●For the operating status of each station after a communication failure, refer to Page 136, Section 8.2.6

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 an external device, such as 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" signals as an output signal from the CPU module to the

intelligent function module.

Doing so may cause malfunction of the programmable controller system.

●To set the auto refresh parameter, select the device Y for the remote output (RY) refresh device. If a

device other than Y, such as M and L, is selected, the CPU module holds the device status even after

its status is changed to STOP.

For how to stop a data link, refer to Page 186, Section 8.3.8.

●If a CC-Link dedicated cable is disconnected, the network may be unstable, resulting in a

communication failure of multiple stations.

Configure an interlock circuit in the program to ensure that the entire system will always operate

safely even if communications fail.

Failure to do so may result in an accident due to an incorrect output or malfunction.

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.

[Security Precautions]

[Installation Precautions]

[Wiring Precautions]

WARNING

●To maintain the security (confidentiality, integrity, and availability) of the programmable controller and

the system against unauthorized access, denial-of-service (DoS) attacks, computer viruses, and other

cyberattacks from external devices via the network, take appropriate measures such as firewalls,

virtual private networks (VPNs), and antivirus solutions.

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

until they click.

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.

●After installation and wiring, attach the included terminal cover to the module before turning it on for

operation.

Failure to do so may result in electric shock.

[Wiring Precautions]

[Startup and Maintenance 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 a terminal block screw comes

loose, resulting in failure.

●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.

●Tighten the terminal block screws within the specified torque range.

Undertightening can cause short circuit or malfunction.

Overtightening can damage the screw and/or module, resulting in drop, short circuit, fire, or

malfunction.

●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.

●For the CC-Link system, use dedicated cables that are specified by the manufacturer.

If not, the performance of the CC-Link system is not guaranteed.

Also, the maximum overall cable length and the station-to-station cable length must meet those

specified in Page 25, CHAPTER 3.

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 or

retightening the terminal block screws.

Failure to do so may result in electric shock.

[Startup and Maintenance Precautions]

[Disposal Precautions]

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.

●Tighten the terminal block screws within the specified torque range.

Undertightening can cause drop of the component or wire, short circuit, or malfunction.

Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction.

●After the first use of the product (module and terminal block), do not connect/disconnect the product

more than 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) MELSEC 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 ELECTRIC 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 ELECTRIC USER'S, 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 Electric 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 Electric 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 Electric representative in your region.

(3) Mitsubishi Electric shall have no responsibility or liability for any problems involving programmable controller trouble and

system trouble caused by DoS attacks, unauthorized access, computer viruses, and other cyberattacks.

INTRODUCTION

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

This manual explains the functions and programming required to use the L26CPU-BT/L26CPU-PBT built-in CC-Link

system master/local function and the LJ61BT11 CC-Link system master/local module (hereinafter referred to as the L

series master/local 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/Y00 to X/Y1F are

assigned for a L series master/local 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)

●Operating procedures are explained using GX Works2. When using GX Developer, refer to Page 461, Appendix

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 one of the following

manuals.

• MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and Inspection)

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

• Safety Guidelines

(This manual is 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 one of the manuals listed

under (1).

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