The information provided in this documentation contains general descriptions and/or technical
characteristics of the performance of the products contained herein. This documentation is not
intended as a substitute for and is not to be used for determining suitability or reliability of these
products for specific user applications. It is the duty of any such user or integrator to perform the
appropriate and complete risk analysis, evaluation and testing of the products with respect to the
relevant specific application or use thereof. Neither Schneider Electric nor any of its affiliates or
subsidiaries shall be responsible or liable for misuse of the information contained herein. If you
have any suggestions for improvements or amendments or have found errors in this publication,
please notify us.
You agree not to reproduce, other than for your own personal, noncommercial use, all or part of
this document on any medium whatsoever without permission of Schneider Electric, given in
writing. You also agree not to establish any hypertext links to this document or its content.
Schneider Electric does not grant any right or license for the personal and noncommercial use of
the document or its content, except for a non-exclusive license to consult it on an "as is" basis, at
your own risk. All other rights are reserved.
All pertinent state, regional, and local safety regulations must be observed when installing and
using this product. For reasons of safety and to help ensure compliance with documented system
data, only the manufacturer should perform repairs to components.
When devices are used for applications with technical safety requirements, the relevant
instructions must be followed.
Failure to use Schneider Electric software or approved software with our hardware products may
result in injury, harm, or improper operating results.
Failure to observe this information can result in injury or equipment damage.
Read these instructions carefully, and look at the equipment to become familiar with the device
before trying to install, operate, service, or maintain it. The following special messages may appear
throughout this documentation or on the equipment to warn of potential hazards or to call attention
to information that clarifies or simplifies a procedure.
35012676 10/20195
PLEASE NOTE
Electrical equipment should be installed, operated, serviced, and maintained only by qualified
personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of
the use of this material.
A qualified person is one who has skills and knowledge related to the construction and operation
of electrical equipment and its installation, and has received safety training to recognize and avoid
the hazards involved.
BEFORE YOU BEGIN
Do not use this product on machinery lacking effective point-of-operation guarding. Lack of
effective point-of-operation guarding on a machine can result in serious injury to the operator of
that machine.
UNGUARDED EQUIPMENT
Do not use this software and related automation equipment on equipment which does not have
point-of-operation protection.
Do not reach into machinery during operation.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
This automation equipment and related software is used to control a variety of industrial processes.
The type or model of automation equipment suitable for each application will vary depending on
factors such as the control function required, degree of protection required, production methods,
unusual conditions, government regulations, etc. In some applications, more than one processor
may be required, as when backup redundancy is needed.
Only you, the user, machine builder or system integrator can be aware of all the conditions and
factors present during setup, operation, and maintenance of the machine and, therefore, can
determine the automation equipment and the related safeties and interlocks which can be properly
used. When selecting automation and control equipment and related software for a particular
application, you should refer to the applicable local and national standards and regulations. The
National Safety Council's Accident Prevention Manual (nationally recognized in the United States
of America) also provides much useful information.
In some applications, such as packaging machinery, additional operator protection such as pointof-operation guarding must be provided. This is necessary if the operator's hands and other parts
of the body are free to enter the pinch points or other hazardous areas and serious injury can occur.
Software products alone cannot protect an operator from injury. For this reason the software
cannot be substituted for or take the place of point-of-operation protection.
WARNING
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Ensure that appropriate safeties and mechanical/electrical interlocks related to point-of-operation
protection have been installed and are operational before placing the equipment into service. All
interlocks and safeties related to point-of-operation protection must be coordinated with the related
automation equipment and software programming.
NOTE: Coordination of safeties and mechanical/electrical interlocks for point-of-operation
protection is outside the scope of the Function Block Library, System User Guide, or other
implementation referenced in this documentation.
START-UP AND TEST
Before using electrical control and automation equipment for regular operation after installation,
the system should be given a start-up test by qualified personnel to verify correct operation of the
equipment. It is important that arrangements for such a check be made and that enough time is
allowed to perform complete and satisfactory testing.
EQUIPMENT OPERATION HAZARD
Verify that all installation and set up procedures have been completed.
Before operational tests are performed, remove all blocks or other temporary holding means
used for shipment from all component devices.
Remove tools, meters, and debris from equipment.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
Follow all start-up tests recommended in the equipment documentation. Store all equipment
documentation for future references.
Software testing must be done in both simulated and real environments.
Verify that the completed system is free from all short circuits and temporary grounds that are not
installed according to local regulations (according to the National Electrical Code in the U.S.A, for
instance). If high-potential voltage testing is necessary, follow recommendations in equipment
documentation to prevent accidental equipment damage.
Before energizing equipment:
Remove tools, meters, and debris from equipment.
Close the equipment enclosure door.
Remove all temporary grounds from incoming power lines.
Perform all start-up tests recommended by the manufacturer.
WARNING
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OPERATION AND ADJUSTMENTS
The following precautions are from the NEMA Standards Publication ICS 7.1-1995 (English
version prevails):
Regardless of the care exercised in the design and manufacture of equipment or in the selection
and ratings of components, there are hazards that can be encountered if such equipment is
improperly operated.
It is sometimes possible to misadjust the equipment and thus produce unsatisfactory or unsafe
operation. Always use the manufacturer’s instructions as a guide for functional adjustments.
Personnel who have access to these adjustments should be familiar with the equipment
manufacturer’s instructions and the machinery used with the electrical equipment.
Only those operational adjustments actually required by the operator should be accessible to
the operator. Access to other controls should be restricted to prevent unauthorized changes in
operating characteristics.
835012676 10/2019
About the Book
At a Glance
Document Scope
This manual describes the hardware installation of the Modicon M340 PLCs and installation of their
main accessories.
This document is also valid for the Modicon M340H PLCs and their accessories.
Validity Note
This documentation is valid for EcoStruxure™ Control Expert 14.1 or later.
You need Modicon M340 firmware 2.4 or later.
The technical characteristics of the devices described in the present document also appear online.
To access the information online:
StepAction
1Go to the Schneider Electric home page
2In the Search box type the reference of a product or the name of a product range.
3If you entered a reference, go to the Product Datasheets search results and click on the
4If more than one reference appears in the Products search results, click on the reference that
5Depending on the size of your screen, you may need to scroll down to see the datasheet.
6To save or print a datasheet as a .pdf file, click Download XXX product datasheet.
www.schneider-electric.com
Do not include blank spaces in the reference or product range.
To get information on grouping similar modules, use asterisks (
reference that interests you.
If you entered the name of a product range, go to the Product Ranges search results and click
on the product range that interests you.
interests you.
.
*
).
The characteristics that are presented in the present document should be the same as those
characteristics that appear online. In line with our policy of constant improvement, we may revise
content over time to improve clarity and accuracy. If you see a difference between the document
and online information, use the online information as your reference.
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Related Documents
Title of documentationReference number
Modicon M580, M340, and X80 I/O Platforms,
Standards and Certifications
Modicon X80 Racks and Power Supplies, Hardware,
Reference Manual
EcoStruxure™ Control Expert, Program Languages
and Structure, Reference Manual
EcoStruxure™ Control Expert, Operating Modes33003101 (English),
You can download these technical publications and other technical information from our website
www.schneider-electric.com/en/download
at
.
Product Related Information
WARNING
UNINTENDED EQUIPMENT OPERATION
The application of this product requires expertise in the design and programming of control
systems. Only persons with such expertise should be allowed to program, install, alter, and apply
this product.
Follow all local and national safety codes and standards.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
1035012676 10/2019
ModiconM340
ModiconM340 PLCs
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ModiconM340 PLCs
Part I
Modicon M340 PLCs
Subject of this Part
This part provides a general overview of the Modicon M340 PLC configurations and the various
sub-assemblies, as well as the networks and field buses used.
What Is in This Part?
This part contains the following chapters:
ChapterChapter NamePage
1Introduction to Modicon M340 PLC Stations13
2General Introduction to PLC Station Components15
3General Introduction to PLC Networks31
4Operating Standards and Conditions35
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Modicon M340 PLCs
12
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ModiconM340
Introduction to ModiconM340 PLC Stations
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Introduction to ModiconM340 PLC Stations
Chapter 1
Introduction to Modicon M340 PLC Stations
Modicon M340 PLC Station
General
Modicon M340 automated platform processors manage the entire PLC station, which is made up
of discrete I/O modules, analog I/O modules, counting modules, discrete I/O modules, analog I/O
modules, other expert modules, and communication modules. These are distributed across one or
more racks connected on the local bus. Each rack must include a power supply module; the main
rack supports the CPU.
Illustration
The following diagram shows a configuration example for the Modicon M340 PLC with one rack:
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Introduction to Modicon M340 PLC Stations
Number Table
The following table describes the numbered components of the PLC station above.
NumberDescription
1Power supply module
2Processor
320-pin terminal block I/O module
440-pin single connector I/O module
540-pin 2-connector I/O module
6Counting module
78-slot rack
14
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ModiconM340
General Introduction to PLC station components
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General Introduction to PLC Station C omponents
Chapter 2
General Introduction to PLC Station Components
Subject of this Section
This section provides a general overview of the various components of which a PLC station may
consist.
What Is in This Chapter?
This chapter contains the following topics:
General Introduction to Processors16
General Introduction to Racks17
General Introduction to Power Supply Modules18
General Introduction to Rack Extender Module19
General Introduction to Input/Output Modules20
General Introduction to Counting Modules23
General Introduction to Communication25
Grounding of Installed Modules26
Modicon M340H (Hardened) Processors, Modules and Equipment28
TopicPage
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General Introduction to PLC station components
General Introduction to Processors
General
Each PLC station is equipped with a processor, chosen according to the following characteristics:
processing power (number of inputs/outputs managed)
memory capacity
communication ports
For further information, please refer to
Introduction to BMX P34 xxxx Processors, page 39
).
16
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General Introduction to Racks
General
There are various sizes of racks. The following list presents the quantity of slots available for the
CPU and modules for each rack reference:
4 slots: BMXXBP0400(H) or BMEXBP0400(H)
6 slots: BMXXBP0600(H)
8 slots: BMXXBP0800(H) or BMEXBP0800(H)
12 slots: BMXXBP1200(H) or BMEXBP1200(H)
racks with redundant power supplies:
Each rack includes one extra slot that is reserved for the power supply module, and one slot on the
right is reserved for the BMXXBE1000 rack extender module.
For further information, refer to the chapter
Racks and Power Supplies, Hardware Reference Manual)
Representation of the Racks
The following diagram shows the BMXXPB0400 rack:
General Introduction to PLC station components
Modicon X80 Racks Description (see Modicon X80,
.
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General Introduction to PLC station components
General Introduction to Power Supply Modules
General
Each rack requires one power supply module defined according to the distributed network
(alternating or direct current) and the power necessary at rack level.
For further information, refer to the chapter
(see Modicon X80, Racks and Power Supplies, Hardware Reference Manual)
Illustration
The following illustration shows a BMXCPS•••• power supply module:
Modicon X80 Power Supply Modules Description
.
18
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General Introduction to Rack Extender Module
General
This module allows connecting a maximum of 4 chained racks, depending on the CPU, distributed
along a maximum length of 30 meters.
For further information, refer to chapter
Racks and Power Supplies, Hardware Reference Manual)
Illustration
Illustration of the BMXXBE1000 rack extender module:
BMXXBE1000 Rack Extender Module (see Modicon X80,
General Introduction to PLC station components
.
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General Introduction to PLC station components
General Introduction to Input/Output Modules
General
The Modicon M340 range includes discrete and analog input/output modules.
Discrete Input/Output
A wide range of discrete input/output modules enables you to select the module best suited to your
needs. The characteristics of these modules differ as follows:
Modules with direct current inputs (24 VCC and 48 VCC)
Modules with alternating current inputs (24 VCA, 48 VCA
and 120 VCA)
Modules with relay outputs
Modules with direct current static outputs (24 VCC / 0.1 A
- 0.5 A - 3 A)
Modules with alternating current static outputs (24 VCC /
240 VAC / 3 A)
20-pin terminal blocks
40-pin connectors allowing connection to sensors and pre-
actuators by means of the TELEFAST 2 prewiring system
20
The following illustration shows a discrete input/output modules with 40-pin connectors:
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The following illustration shows a discrete input/output module with a 20-pin terminal block:
Analog Inputs/Outputs
A wide range of analog input/output modules enables you to select the module best suited to your
needs. The characteristics of these modules differ as follows:
CharacteristicsDescription
Modularity
Performance and Range of Signals Offered
Type of Connector
General Introduction to PLC station components
2 channels
4 channels
Voltage/current
Thermocouple
Thermowell
20-pin terminal blocks
40-pin connectors allowing connection to
sensors and pre-actuators by means of
the TELEFAST 2 prewiring system
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General Introduction to PLC station components
The following illustration shows an analog input/output module with one 40-pin connector:
The following illustration shows an analog input/output module with 20-pin terminal block:
22
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General Introduction to Counting Modules
General
The PLCs in the Modicon M340 range offer counting functions (downcounting, counting,
counting/downcounting) by utilizing the application-specific counting modules.
Two counting modules are offered:
BMX EHC 0200 module with two counting channels and a maximum acquisition frequency of
60 kHz
BMX EHC 0800 module with eight counting channels and a maximum acquisition frequency of
10 kHz
Illustration
The following illustration shows a BMX EHC 0200 counting module:
General Introduction to PLC station components
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General Introduction to PLC station components
The following illustration shows a BMX EHC 0800 counting module:
24
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General Introduction to Communication
General
PLCs from the Modicon M340 range can be used in different communication modes:
USB
Serial
Ethernet
CANopen
AS-Interface
General Introduction to PLC station components
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General Introduction to PLC station components
Grounding of Installed Modules
General
The grounding of Modicon M340 modules is crucial to avoid electric shock.
Grounding Processors and Power Supplies
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH
Ensure ground connection contacts are present and not bent out of shape. If they are, do not use
the module and contact your Schneider Electric representative.
Failure to follow these instructions will result in death or serious injury.
UNINTENDED EQUIPMENT OPERATION
Tighten the clamping screws of the modules. A break in the circuit could lead to an unexpected
behavior of the system.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
DANGER
WARNING
26
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General Introduction to PLC station components
All Modicon M340 modules are equipped with ground connection contacts at the rear for grounding
purposes:
These contacts connect the grounding bus of the modules to the grounding bus of the rack.
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General Introduction to PLC station components
Modicon M340H (Hardened) Processors, Modules and Equipment
At a Glance
Hardened equipment can operate in extended temperature ranges and harsher environments
compared to standard M340 equipment.
NOTE: For more information, refer to chapter
(see Modicon M580, M340, and X80 I/O Platforms, Standards and Certifications)
“H” Equipment
The follow equipment are available in Hardened versions: