Schneider Electric M251 Hardware Guide

Modicon M251 Logic C ontroller

EIO0000003101 12/2019

Modicon M251 Logic
Controller

Hardware Guide

12/2019

EIO0000003101.01

www.schneider-electric.com

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.

© 2019 Schneider Electric. All rights reserved.

2 EIO0000003101 12/2019

Table of Contents

Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

About the Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Part I Modicon M251 Logic Controller Introduction . . . . . .

Chapter 1 M251 General Overview . . . . . . . . . . . . . . . . . . . . . . . . . 17

M251 Logic Controller Description . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .

TM2 Expansion Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TM3 Expansion Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TM3 Bus Couplers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TM4 Expansion Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TM5 Fieldbus Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TM5 CANopen Fieldbus Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . .

TM7 CANopen Fieldbus Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 2 M251 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Real Time Clock (RTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Run/Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 3 M251 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

3.1 M251 Logic Controller General Rules for Implementing . . . . . . . . . . .

Environmental Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Certifications and Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 M251 Logic Controller Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation and Maintenance Requirements . . . . . . . . . . . . . . . . . . . .

M251 Logic Controller Mounting Positions and Clearances . . . . . . . .

Top Hat Section Rail (DIN rail) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing and Removing the Controller with Expansions. . . . . . . . . . .

Direct Mounting on a Panel Surface . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 M251 Electrical Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wiring Best Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Power Supply Characteristics and Wiring . . . . . . . . . . . . . . . . . . .

Grounding the M251 System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

18
20
23
27
36
37
38
39
40
41

44
48
49

54
55
58
59
60
63
66
70
73
74
75
78
82

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Part II Modicon M251 Logic Controller . . . . . . . . . . . . . . . .

85

Chapter 4 TM251MESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

TM251MESC Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

87

Chapter 5 TM251MESE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

TM251MESE Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Part III Modicon M251 Logic Controller Communication . . .

91
95

Chapter 6 Integrated Communication Ports . . . . . . . . . . . . . . . . . . . 97

CAN Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TM251MESE Specific Considerations . . . . . . . . . . . . . . . . . . . . . . . . .

USB Mini-B Programming Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Serial Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

98
101
103
105
106

Chapter 7 Connecting the M251 Logic Controller to a PC . . . . . . . . 109

Connecting the Controller to a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

109
113
119

4 EIO0000003101 12/2019

Safety Information

Important Information

NOTICE

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.

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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.

QUALIFICATION OF PERSONNEL

Only appropriately trained persons who are familiar with and understand the contents of this
manual and all other pertinent product documentation are authorized to work on and with this
product.

The qualified person must be able to detect possible hazards that may arise from parameterization,
modifying parameter values and generally from mechanical, electrical, or electronic equipment.
The qualified person must be familiar with the standards, provisions, and regulations for the
prevention of industrial accidents, which they must observe when designing and implementing the
system.

INTENDED USE

The products described or affected by this document, together with software, accessories, and
options, are programmable logic controllers (referred to herein as “logic controllers”), intended for
industrial use according to the instructions, directions, examples, and safety information contained
in the present document and other supporting documentation.

The product may only be used in compliance with all applicable safety regulations and directives,
the specified requirements, and the technical data.

Prior to using the product, you must perform a risk assessment in view of the planned application.
Based on the results, the appropriate safety-related measures must be implemented.

Since the product is used as a component in an overall machine or process, you must ensure the
safety of persons by means of the design of this overall system.

Operate the product only with the specified cables and accessories. Use only genuine accessories
and spare parts.

Any use other than the use explicitly permitted is prohibited and can result in unanticipated
hazards.

6 EIO0000003101 12/2019

About the Book

At a Glance

Document Scope

Use this document to:

 Install and operate your M251 Logic Controller.
 Connect the M251 Logic Controller to a programming device equipped with EcoStruxure

Machine Expert software.

 Interface the M251 Logic Controller with I/O expansion modules, HMI and other devices.
 Familiarize yourself with the M251 Logic Controller features.

NOTE: Read and understand this document and all related documents before installing, operating,
or maintaining your controller.

Validity Note

This document has been updated for the release of EcoStruxure

For product compliance and environmental information (RoHS, REACH, PEP, EOLI, etc.), go to

www.schneider-electric.com/green-premium

The technical characteristics of the devices described in this manual also appear online

https://www.se.com/

(

The characteristics that are described 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.

TM

Machine Expert V1.2.

.

).

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Related Documents

Title of Documentation Reference Number

Modicon M251 Logic Controller - Programming Guide

EcoStruxure Machine Expert Industrial Ethernet User Guide

Modicon TM3 Digital I/O Modules - Hardware Guide

Modicon TM3 Expert I/O Modules - Hardware Guide

Modicon TM3 Safety Modules - Hardware Guide

EIO0000003089 (ENG)
EIO0000003090 (FRE)
EIO0000003091 (GER)
EIO0000003092 (SPA)
EIO0000003093 (ITA)
EIO0000003094 (CHS)

EIO0000003053 (ENG)
EIO0000003054 (FRE)
EIO0000003055 (GER)
EIO0000003056 (SPA)
EIO0000003057 (ITA)
EIO0000003058 (CHS)

EIO0000003125 (ENG)
EIO0000003126 (FRE)
EIO0000003127 (GER)
EIO0000003128 (SPA)
EIO0000003129 (ITA)
EIO0000003130 (CHS)
EIO0000003425 (TUR)
EIO0000003424 (POR)

EIO0000003137 (ENG)
EIO0000003138 (FRE)
EIO0000003139 (GER)
EIO0000003140 (SPA)
EIO0000003141 (ITA)
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EIO0000003429 (TUR)
EIO0000003428 (POR)

EIO0000003353 (ENG)
EIO0000003354 (FRE)
EIO0000003355 (GER)
EIO0000003356 (SPA)
EIO0000003357 (ITA)
EIO0000003358 (CHS)
EIO0000003359 (POR)
EIO0000003360 (TUR)

8 EIO0000003101 12/2019

Title of Documentation Reference Number

Modicon TM3 Transmitter and Receiver Modules - Hardware Guide

EIO0000003143 (ENG)
EIO0000003144 (FRE)
EIO0000003145 (GER)
EIO0000003146 (SPA)
EIO0000003147 (ITA)
EIO0000003148 (CHS)
EIO0000003431 (TUR)
EIO0000003430 (POR)

Modicon TM3 Bus Coupler - Hardware Guide

EIO0000003635 (ENG)
EIO0000003636 (FRE)
EIO0000003637 (GER)
EIO0000003638 (SPA)
EIO0000003639 (ITA)
EIO0000003640 (CHS)
EIO0000003641 (POR)
EIO0000003642 (TUR)

Modicon TM4 Expansion Modules - Hardware Guide

EIO0000003155 (ENG)
EIO0000003156 (FRE)
EIO0000003157 (GER)
EIO0000003158 (SPA)
EIO0000003159 (ITA)
EIO0000003160 (CHS)

Modicon TM5 Fieldbus Interface - Hardware Guide

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EIO0000003716 (FRE)
EIO0000003717 (GER)
EIO0000003718 (SPA)
EIO0000003719 (ITA)
EIO0000003720 (CHS)

M251 Logic Controller - Instruction Sheet

HRB59604

You can download these technical publications and other technical information from our website
at https://www.se.com/ww/en/download/ .

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Product Related Information

HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH

 Disconnect all power from all equipment including connected devices prior to removing any

covers or doors, or installing or removing any accessories, hardware, cables, or wires except
under the specific conditions specified in the appropriate hardware guide for this equipment.

 Always use a properly rated voltage sensing device to confirm the power is off where and when

indicated.

 Replace and secure all covers, accessories, hardware, cables, and wires and confirm that a

proper ground connection exists before applying power to the unit.

 Use only the specified voltage when operating this equipment and any associated products.

Failure to follow these instructions will result in death or serious injury.

POTENTIAL FOR EXPLOSION

 Only use this equipment in non-hazardous locations, or in locations that comply with Class I,

Division 2, Groups A, B, C and D.

 Do not substitute components which would impair compliance to Class I, Division 2.
 Do not connect or disconnect equipment unless power has been removed or the location is

known to be non-hazardous.

 Do not use the USB port(s), if so equipped, unless the location is known to be non-hazardous.

Failure to follow these instructions will result in death or serious injury.

DANGER

DANGER

10 EIO0000003101 12/2019

WARNING

LOSS OF CONTROL

 The designer of any control scheme must consider the potential failure modes of control paths

and, for certain critical control functions, provide a means to achieve a safe state during and
after a path failure. Examples of critical control functions are emergency stop and overtravel
stop, power outage and restart.

 Separate or redundant control paths must be provided for critical control functions.
 System control paths may include communication links. Consideration must be given to the

implications of unanticipated transmission delays or failures of the link.

 Observe all accident prevention regulations and local safety guidelines.
 Each implementation of this equipment must be individually and thoroughly tested for proper

1

operation before being placed into service.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

1

For additional information, refer to NEMA ICS 1.1 (latest edition), "Safety Guidelines for the
Application, Installation, and Maintenance of Solid State Control" and to NEMA ICS 7.1 (latest
edition), "Safety Standards for Construction and Guide for Selection, Installation and Operation of
Adjustable-Speed Drive Systems" or their equivalent governing your particular location.

WARNING

UNINTENDED EQUIPMENT OPERATION

 Only use software approved by Schneider Electric for use with this equipment.
 Update your application program every time you change the physical hardware configuration.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

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Terminology Derived from Standards

The technical terms, terminology, symbols and the corresponding descriptions in this manual, or
that appear in or on the products themselves, are generally derived from the terms or definitions
of international standards.

In the area of functional safety systems, drives and general automation, this may include, but is not
limited to, terms such as

safety, safety function, safe state, fault, fault reset, malfunction, failure

error, error message, dangerous

Among others, these standards include:

Standard Description

IEC 61131-2:2007 Programmable controllers, part 2: Equipment requirements and tests.

ISO 13849-1:2015 Safety of machinery: Safety related parts of control systems.

General principles for design.

EN 61496-1:2013 Safety of machinery: Electro-sensitive protective equipment.

Part 1: General requirements and tests.

ISO 12100:2010 Safety of machinery - General principles for design - Risk assessment and risk

reduction

EN 60204-1:2006 Safety of machinery - Electrical equipment of machines - Part 1: General

requirements

ISO 14119:2013 Safety of machinery - Interlocking devices associated with guards - Principles

ISO 13850:2015 Safety of machinery - Emergency stop - Principles for design

IEC 62061:2015 Safety of machinery - Functional safety of safety-related electrical, electronic,

IEC 61508-1:2010 Functional safety of electrical/electronic/programmable electronic safety-

IEC 61508-2:2010 Functional safety of electrical/electronic/programmable electronic safety-

IEC 61508-3:2010 Functional safety of electrical/electronic/programmable electronic safety-

IEC 61784-3:2016 Industrial communication networks - Profiles - Part 3: Functional safety

2006/42/EC Machinery Directive

2014/30/EU Electromagnetic Compatibility Directive

2014/35/EU Low Voltage Directive

for design and selection

and electronic programmable control systems

related systems: General requirements.

related systems: Requirements for electrical/electronic/programmable
electronic safety-related systems.

related systems: Software requirements.

fieldbuses - General rules and profile definitions.

,

, etc.

12 EIO0000003101 12/2019

In addition, terms used in the present document may tangentially be used as they are derived from
other standards such as:

Standard Description

IEC 60034 series Rotating electrical machines

IEC 61800 series Adjustable speed electrical power drive systems

IEC 61158 series Digital data communications for measurement and control – Fieldbus for use in

industrial control systems

Finally, the term
hazards, and is defined as it is for a
(

2006/42/EC

zone of operation

) and

ISO 12100:2010

may be used in conjunction with the description of specific

hazard zone

or

danger zone

in the

Machinery Directive

.

NOTE: The aforementioned standards may or may not apply to the specific products cited in the
present documentation. For more information concerning the individual standards applicable to the
products described herein, see the characteristics tables for those product references.

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14 EIO0000003101 12/2019

Modicon M251 Logic Con troller

Modicon M251 Logic Con troller Introductio n

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Modicon M251 Logic Con troller Introductio n

Part I

Modicon M251 Logic Controller Introduction

What Is in This Part?

This part contains the following chapters:

Chapter Chapter Name Page

1 M251 General Overview 17

2 M251 Features 43

3 M251 Installation 53

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Modicon M251 Logic Controller Introduction

16

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Modicon M251 Logic Con troller

M251 General Overview

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M251 General Overview

Chapter 1

M251 General Overview

Overview

This chapter provides general information about the M251 Logic Controller system architecture
and its components.

What Is in This Chapter?

This chapter contains the following topics:

M251 Logic Controller Description 18

Maximum Hardware Configuration 20

TM2 Expansion Modules 23

TM3 Expansion Modules 27

TM3 Bus Couplers 36

TM4 Expansion Modules 37

TM5 Fieldbus Interfaces 38

TM5 CANopen Fieldbus Interfaces 39

TM7 CANopen Fieldbus Interfaces 40

Accessories 41

Topic Page

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M251 General Overview

M251 Logic Controller Description

Overview

The M251 Logic Controller has various powerful features and can service a wide range of
applications.

Software configuration, programming, and commissioning are achieved with the EcoStruxure
Machine Expert software described in the EcoStruxure Machine Expert Programming Guide

(see EcoStruxure Machine Expert, Programming Guide)

Programming Guide.

Programming Languages

The M251 Logic Controller is configured and programmed with the EcoStruxure Machine Expert
software, which supports the following IEC 61131-3 programming languages:

 IL: Instruction list
 ST: Structured text
 FBD: Function block diagram
 SFC: Sequential function chart
 LD: Ladder diagram

EcoStruxure Machine Expert software can also be used to program this controller using CFC
(continuous function chart) language.

Power Supply

The power supply of the M251 Logic Controller is 24 Vdc

and in the M251 Logic Controller

(seepage78)

.

Real Time Clock

The M251 Logic Controller includes a Real Time Clock (RTC) system

Run/Stop

The M251 Logic Controller can be operated externally by the following:

 a hardware Run/Stop switch
 an EcoStruxure Machine Expert software command

Memory

This table describes the different types of memory:

Memory Type Size Used

RAM 64 Mbytes, of which 8 Mbytes

Flash 128 Mbytes To save the program and data in case of a

18

(seepage48)

available for the application

(see page 44)

To execute the application.

power interruption.

.

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Removable Storage

M251 Logic Controllers include an embedded SD card slot

The main uses of the SD card are:

 Initializing the controller with a new application
 Updating the controller firmware
 Applying post configuration files to the controller
 Applying recipes
 Receiving data logging files

Embedded Communication Features

The M251 Logic Controller native communication ports include (depending on the controller
reference):

 CANopen Master
 Ethernet
 USB Mini-B
 Serial Line

(seepage101)

(see page 105)

(see page 106)

Expansion Module and Bus Coupler Compatibility

Refer to the compatibility tables in the EcoStruxure Machine Expert - Compatiblity and Migration
User Guide.

M251 Logic Controllers

(see page 49)

M251 General Overview

.

Reference Digital Inputs Digital Outputs Communication Ports

TM251MESC

(see page 87)

TM251MESE

(see page 91)

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0 0 1 serial line port

1 USB mini-B programming port
1 dual port Ethernet switch
1 CANopen port

0 0 1 serial line port

1 USB mini-B programming port
1 dual port Ethernet switch
1 Ethernet port for fieldbus

M251 General Overview

Maximum Hardware Configuration

Introduction

The M251 Logic Controller is a control system that offers a scalable solution with optimized
configurations and an expandable architecture.

Local and Remote Configuration Principle

The following figure defines the local and remote configurations:

(1) Local configuration
(2) Remote configuration

M251 Logic Controller Local Configuration Architecture

Optimized local configuration and flexibility are provided by the association of:

 M251 Logic Controller
 TM4 expansion modules
 TM3 expansion modules
 TM2 expansion modules

Application requirements determine the architecture of your M251 Logic Controller configuration.

The following figure represents the components of a local configuration:

20

(A) Expansion modules (3 maximum)
(B) Expansion modules (7 maximum)

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NOTE: It is prohibited to mount a TM2 module before any TM3 module as indicated in the following
figure:

M251 Logic Controller Remote Configuration Architecture

Optimized remote configuration and flexibility are provided by the association of:

 M251 Logic Controller
 TM4 expansion modules
 TM3 expansion modules
 TM3 transmitter and receiver modules

Application requirements determine the architecture of your M251 Logic Controller configuration.

NOTE: You cannot use TM2 modules in configurations that include the TM3 transmitter and
receiver modules.

The following figure represents the components of a remote configuration:

M251 General Overview

(1) Logic controller and modules
(C) TM3 expansion modules (7 maximum)

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M251 General Overview

Maximum Number of Modules

The following table shows the maximum configuration supported:

References Maximum Type of Configuration

TM251•••• 7 TM3 / TM2 expansion

TM251•••• 3 TM4 expansion modules Local

TM3XREC1 7 TM3 expansion modules Remote

NOTE: TM3 transmitter and receiver modules are not included in a count of the maximum number of

expansion modules.

NOTE: The configuration with its TM4, TM3, and TM2 expansion modules is validated by
EcoStruxure Machine Expert software in the Configuration window.

NOTE: In some environments, the maximum configuration populated by high consumption
modules, coupled with the maximum distance allowable between the TM3 transmitter and receiver
modules, may present bus communication issues although the EcoStruxure Machine Expert
software allows for the configuration. In such a case you will need to analyze the power
consumption of the modules chosen for your configuration, as well as the minimum cable distance
required by your application, and possibly seek to optimize your choices.

Local

modules

22

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TM2 Expansion Modules

Overview

You can expand the number of I/Os of your M251 Logic Controller by adding TM2 I/O expansion
modules.

The following types of electronic modules are supported:

 TM2 digital I/O expansion modules
 TM2 analog I/O expansion modules

For more information, refer to the following documents:

 TM2 Digital I/O Expansion Modules Hardware Guide
 TM2 Analog I/O Expansion Modules Hardware Guide

NOTE: TM2 modules can only be used in the local configuration, and only if there is no TM3
transmitter and receiver modules present in the configuration.

NOTE: It is prohibited to mount a TM2 module before any TM3 module. The TM2 modules must
be mounted and configured at the end of the local configuration.

TM2 Digital Input Expansion Modules

The following table shows the compatible TM2 digital input expansion modules with the
corresponding channel type, nominal voltage/current, and terminal type:

M251 General Overview

Reference Channels Channel Type Voltage

Current

TM2DAI8DT 8 Regular inputs 120 Vac

7.5 mA

TM2DDI8DT 8 Regular inputs 24 Vdc

7mA

TM2DDI16DT 16 Regular inputs 24 Vdc

7mA

TM2DDI16DK 16 Regular inputs 24 Vdc

5mA

TM2DDI32DK 32 Regular inputs 24 Vdc

5mA

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Terminal Type

Removable screw
terminal block

Removable screw
terminal block

Removable screw
terminal block

HE10 (MIL 20)
connector

HE10 (MIL 20)
connector

M251 General Overview

TM2 Digital Output Expansion Modules

The following table shows the compatible TM2 digital output expansion modules with the
corresponding channel type, nominal voltage/current, and terminal type:

Reference Channels Channel type Voltage

Current

TM2DRA8RT 8 Relay outputs 30 Vdc / 240 Vac

TM2DRA16RT 16 Relay outputs 30 Vdc / 240 Vac

TM2DDO8UT 8 Regular transistor

outputs (sink)

TM2DDO8TT 8 Regular transistor

outputs (source)

TM2DDO16UK 16 Regular transistor

outputs (sink)

TM2DDO16TK 16 Regular transistor

outputs (source)

TM2DDO32UK 32 Regular transistor

outputs (sink)

TM2DDO32TK 32 Regular transistor

outputs (source)

2 A max

2 A max

24 Vdc

0.3 A max per output

24 Vdc

0.5 A max per output

24 Vdc

0.1 A max per output

24 Vdc

0.4 A max per output

24 Vdc

0.1 A max per output

24 Vdc

0.4 A max per output

TM2 Digital Mixed Input/Output Expansion Modules

The following table shows the compatible TM2 digital mixed I/O expansion modules with the
corresponding channel type, nominal voltage/current, and terminal type:

Reference Channels Channel type Voltage

Current

TM2DMM8DRT 4 Regular inputs 24 Vdc

7mA

4 Relay outputs 24 Vdc / 240 Vac

TM2DMM24DRF 16 Regular inputs 24 Vdc

8 Relay outputs 24 Vdc / 240 Vac

7 A maximum per
common line / 2 A
maximum per output

7 mA

7 A maximum per
common line / 2 A
maximum per output

Terminal type

Removable screw
terminal block

Removable screw
terminal block

Removable screw
terminal block

Removable screw
terminal block

HE10 (MIL 20)
connector

HE10 (MIL 20)
connector

HE10 (MIL 20)
connector

HE10 (MIL 20)
connector

Terminal type

Removable screw
terminal block

Non-removable
spring terminal
block

24

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TM2 Analog Input Expansion Modules

The following table shows the compatible TM2 analog input expansion modules with the
corresponding channel type, nominal voltage/current, and terminal type:

M251 General Overview

Reference Channels Channel type Voltage

Current

TM2AMI2HT 2 High-level inputs 0...10 Vdc

4...20 mA

TM2AMI2LT 2 Low-level inputs Thermocouple type

J,K,T

TM2AMI4LT 4 Analog inputs 0...10 Vdc

0...20 mA
PT100/1000
Ni100/1000

TM2AMI8HT 8 Analog inputs 0...20 mA

0...10 Vdc

TM2ARI8HT 8 Analog inputs NTC / PTC Removable screw

TM2ARI8LRJ 8 Analog inputs PT100/1000 RJ11 connector

TM2ARI8LT 8 Analog inputs PT100/1000 Removable screw

Terminal Type

Removable screw
terminal block

Removable screw
terminal block

Removable screw
terminal block

Removable screw
terminal block

terminal block

terminal block

TM2 Analog Output Expansion Modules

The following table shows the compatible TM2 analog output expansion modules with the
corresponding channel type, nominal voltage/current, and terminal type:

Reference Channels Channel type Voltage

Current

TM2AMO1HT 1 Analog outputs 0...10 Vdc

4...20 mA

TM2AVO2HT 2 Analog outputs +/- 10 Vdc Removable screw

Terminal Type

Removable screw
terminal block

terminal block

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M251 General Overview

TM2 Analog Mixed Input/Output Expansion Modules

The following table shows the compatible TM2 analog mixed I/O expansion modules with the
corresponding channel type, nominal voltage/current, and terminal type:

Reference Channels Channel type Voltage

Current

TM2AMM3HT 2 Analog inputs 0...10 Vdc 4...20 mA Removable screw

1 Analog outputs 0...10 Vdc 4...20 mA

TM2AMM6HT 4 Analog inputs 0...10 Vdc 4...20 mA Removable screw

2 Analog outputs 0...10 Vdc 4...20 mA

TM2ALM3LT 2 Low-level inputs Thermo J,K,T,

PT100

1 Analog outputs 0...10 Vdc 4...20 mA

Terminal Type

terminal block

terminal block

Removable screw
terminal block

26

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TM3 Expansion Modules

Introduction

The range of TM3 expansion modules includes:

 Digital modules, classified as follows:

 Input modules
 Output modules
 Mixed input/output modules

 Analog modules, classified as follows:

 Input modules
 Output modules
 Mixed input/output modules

 Expert modules
 Safety modules
 Transmitter and Receiver modules

For more information, refer to the following documents:

 TM3 Digital I/O Modules Hardware Guide
 TM3 Analog I/O Modules Hardware Guide
 TM3 Expert I/O Modules Hardware Guide
 TM3 Safety Modules Hardware Guide
 TM3 Transmitter and Receiver Modules Hardware Guide

(see page 27)

(see page 31)

(see page 34)
(see page 34)

M251 General Overview

(see page 28)

(see page 30)

(see page 32)

(see page 33)

(seepage35)

TM3 Digital Input Modules

The following table shows the TM3 digital input expansion modules, with corresponding channel
type, nominal voltage/current, and terminal type:

Reference Channels Channel Type Voltage

Current

TM3DI8A 8 Regular inputs 120 Vac

7.5 mA

TM3DI8 8 Regular inputs 24 Vdc

7mA

TM3DI8G 8 Regular inputs 24 Vdc

7mA

TM3DI16 16 Regular inputs 24 Vdc

7mA

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Terminal Type / Pitch

Removable screw
terminal block /

5.08 mm

Removable screw
terminal block /

5.08 mm

Removable spring
terminal block /

5.08 mm

Removable screw
terminal blocks /

3.81 mm

M251 General Overview

Reference Channels Channel Type Voltage

Current

TM3DI16G 16 Regular inputs 24 Vdc

7mA

TM3DI16K 16 Regular inputs 24 Vdc

5mA

TM3DI32K 32 Regular inputs 24 Vdc

5mA

TM3 Digital Output Modules

The following table shows the TM3 digital output expansion modules, with corresponding channel
type, nominal voltage/current, and terminal type:

Reference Channels Channel Type Voltage

Current

TM3DQ8R 8 Relay outputs 24 Vdc / 240 Vac

7 A maximum per
common line / 2 A
maximum per output

TM3DQ8RG 8 Relay outputs 24 Vdc / 240 Vac

TM3DQ8T 8 Regular transistor

outputs (source)

TM3DQ8TG 8 Regular transistor

outputs (source)

TM3DQ8U 8 Regular transistor

outputs (sink)

TM3DQ8UG 8 Regular transistor

outputs (sink)

TM3DQ16R 16 Relay outputs 24 Vdc / 240 Vac

7 A maximum per
common line / 2 A
maximum per output

24 Vdc
4 A maximum per
common line/0.5 A
maximum per output

24 Vdc
4 A maximum per
common line/0.5 A
maximum per output

24 Vdc
4 A maximum per
common line/0.5 A
maximum per output

24 Vdc
4 A maximum per
common line/0.5 A
maximum per output

8 A maximum per
common line / 2 A
maximum per output

Terminal Type / Pitch

Removable spring
terminal blocks /

3.81 mm

HE10 (MIL 20)
connector

HE10 (MIL 20)
connector

Terminal Type / Pitch

Removable screw
terminal block /

5.08 mm

Removable spring
terminal block /

5.08 mm

Removable screw
terminal block /

5.08 mm

Removable spring
terminal block /

5.08 mm

Removable screw
terminal block /

5.08 mm

Removable spring
terminal block /

5.08 mm

Removable screw
terminal blocks /

3.81 mm

28

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M251 General Overview

Reference Channels Channel Type Voltage

Current

TM3DQ16RG 16 Relay outputs 24 Vdc / 240 Vac

8 A maximum per
common line / 2 A
maximum per output

TM3DQ16T 16 Regular transistor

outputs (source)

24 Vdc
8 A maximum per
common line / 0.5 A
maximum per output

TM3DQ16TG 16 Regular transistor

outputs (source)

24 Vdc
8 A maximum per
common line / 0.5 A
maximum per output

TM3DQ16U 16 Regular transistor

outputs (sink)

24 Vdc
8 A maximum per
common line / 0.5 A
maximum per output

TM3DQ16UG 16 Regular transistor

outputs (sink)

24 Vdc
8 A maximum per
common line / 0.5 A
maximum per output

TM3DQ16TK 16 Regular transistor

outputs (source)

24 Vdc
2 A maximum per
common line / 0.1 A
maximum per output

TM3DQ16UK 16 Regular transistor

outputs (sink)

24 Vdc
2 A maximum per
common line / 0.1 A
maximum per output

TM3DQ32TK 32 Regular transistor

outputs (source)

24 Vdc
2 A maximum per
common line / 0.1 A
maximum per output

TM3DQ32UK 32 Regular transistor

outputs (sink)

24 Vdc
2 A maximum per
common line / 0.1 A
maximum per output

Terminal Type / Pitch

Removable spring
terminal blocks /

3.81 mm

Removable screw
terminal blocks /

3.81 mm

Removable spring
terminal blocks /

3.81 mm

Removable screw
terminal blocks /

3.81 mm

Removable spring
terminal blocks /

3.81 mm

HE10 (MIL 20)
connector

HE10 (MIL 20)
connector

HE10 (MIL 20)
connectors

HE10 (MIL 20)
connectors

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M251 General Overview

TM3 Digital Mixed Input/Output Modules

This following table shows the TM3 mixed I/O modules, with corresponding channel type, nominal
voltage/current, and terminal type:

Reference Channels Channel Type Voltage

Current

TM3DM8R 4 Regular inputs 24 Vdc

7mA

4 Relay outputs 24 Vdc / 240 Vac

7 A maximum per
common line / 2 A
maximum per output

TM3DM8RG 4 Regular inputs 24 Vdc

7mA

4 Relay outputs 24 Vdc / 240 Vac

7 A maximum per
common line / 2 A
maximum per output

TM3DM24R 16 Regular inputs 24 Vdc

7mA

8 Relay outputs 24 Vdc / 240 Vac

7 A maximum per
common line / 2 A
maximum per output

TM3DM24RG 16 Regular inputs 24 Vdc

7mA

8 Relay outputs 24 Vdc / 240 Vac

7 A maximum per
common line / 2 A
maximum per output

Terminal Type / Pitch

Removable screw
terminal block /

5.08 mm

Removable spring
terminal block /5.08 mm

Removable screw
terminal
blocks / 3.81 mm

Removable spring
terminal
blocks / 3.81 mm

30

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