Rockwell Automation AB quality Allen-Bradley 1746-INT4 Bedienungsanleitung

Thermocouple/mV

Isolated Input

Module

Catalog Number 1746-INT4

User Manual

Important User Information

Solid state equipment has operational characteristics differing from those of

electromechanical equipment. Safety Guidelines for the Application,

Installation and Maintenance of Solid State Controls (publication SGI-1.1

available from your local Rockwell Automation sales office or online at

http://literature.rockwellautomation.com) describes some important

differences between solid state equipment and hard-wired electromechanical

devices. Because of this difference, and also because of the wide variety of

uses for solid state equipment, all persons responsible for applying this

equipment must satisfy themselves that each intended application of this

equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for

indirect or consequential damages resulting from the use or application of

this equipment.

The examples and diagrams in this manual are included solely for illustrative

purposes. Because of the many variables and requirements associated with

any particular installation, Rockwell Automation, Inc. cannot assume

responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to

use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without

written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware

of safety considerations.

Allen-Bradley, SLC 500, SLC, RSLogix 500, TechConnect, Rockwell Automation, ControlLogix, and RSLinx are trademarks of

Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

WARNING Identifies information about practices or circumstances that can cause

an explosion in a hazardous environment, which may lead to personal

injury or death, property damage, or economic loss.

IMPORTANT Identifies information that is critical for successful application and

understanding of the product.

ATTENTION Identifies information about practices or circumstances that can lead

to personal injury or death, property damage, or economic loss.

Attentions help you identify a hazard, avoid a hazard, and recognize

the consequence

SHOCK HAZARD Labels may be on or inside the equipment, for example, a drive or

motor, to alert people that dangerous voltage may be present.

BURN HAZARD Labels may be on or inside the equipment, for example, a drive or

motor, to alert people that surfaces may reach dangerous

temperatures.

3Publication 1746-UM614B-EN-P - September 2007

Table of Contents

Preface

Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . 7

Purpose of This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Additional Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Common Techniques Used in this Manual . . . . . . . . . . . . . . . 8

Chapter 1

Module Overview

Compliance with European Union Directives . . . . . . . . . . . . . 9

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Block Diagram of Isolated-Channel Input Circuits. . . . . . . . . 15

Chapter 2

Quick Start

Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Channel Configuration Worksheet . . . . . . . . . . . . . . . . . . . . 22

Chapter 3

Install and Wire the Module

Electrostatic Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Module Installation and Removal . . . . . . . . . . . . . . . . . . . . . 27

Wire the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Install the Ferrite Collar . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Chapter 4

Preliminary Operating

Considerations

Module ID Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Module Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Input Channel Characteristics. . . . . . . . . . . . . . . . . . . . . . . . 38

Response to Slot Disabling . . . . . . . . . . . . . . . . . . . . . . . . . 40

Chapter 5

Access Files to Configure I/O

Click and Drag Configuration . . . . . . . . . . . . . . . . . . . . . . . 41

Read IO Config Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Chapter 6

Channel Configuration, Data, and

Status

Channel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Channel Configuration Procedure . . . . . . . . . . . . . . . . . . . . 50

Use Channel Data Words. . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Use Channel Status Words. . . . . . . . . . . . . . . . . . . . . . . . . . 53

Publication 1746-UM614B-EN-P - September 2007

4Table of Contents

Chapter 7

Ladder Programming Examples

Processor Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Load Channel Configurations for Transfer to the Module . . . 58

Change a Channel Configuration . . . . . . . . . . . . . . . . . . . . . 59

Verify Changes to a Channel Configuration . . . . . . . . . . . . . 61

Process a Channel Input with the PID Instruction. . . . . . . . . 62

Monitor Channel Status Bits. . . . . . . . . . . . . . . . . . . . . . . . . 63

Chapter 8

Module Diagnostics and

Troubleshooting

Module and Channel Diagnostics. . . . . . . . . . . . . . . . . . . . . 65

LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Contacting Rockwell Automation . . . . . . . . . . . . . . . . . . . . . 70

Chapter 9

Application Programming

Examples

Basic Example

(to display a temperature) . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Supplementary Example (select display in °C or °F) . . . . . . . 73

Appendix A

Module Specifications

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Physical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . 80

Input Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Appendix B

Channel Configuration

Worksheets

Appendix C

Thermocouple Descriptions

J Type Thermocouple

(iron versus copper-nickel <Constantan>) . . . . . . . . . . . . . . 97

K Type Thermocouple (nickel-chromium versus

nickel-aluminum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

T Type Thermocouple (copper versus copper-nickel

<Constantan>) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

E Type Thermocouple (nickel-chromium versus

copper-nickel <Constantan>). . . . . . . . . . . . . . . . . . . . . . . 100

S and R Type Thermocouple S (platinum-10% rhodium

versus platinum)

R (platinum-13% rhodium versus platinum) . . . . . . . . . . . . 101

C and D Type Thermocouples

C (tungsten-5% rhenium versus tungsten-26% rhenium)

D (tungsten-3% rhenium versus tungsten-25% rhenium) . . . 102

Publication 1746-UM614B-EN-P - September 2007

Table of Contents 5

Appendix D

Channel Calibration

About the Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Appendix E

CSA Hazardous Location Approval

Glossary

Index

Publication 1746-UM614B-EN-P - September 2007

6Table of Contents

7Publication 1746-UM614B-EN-P - September 2007

Preface

Use This Manual

Read this preface to familiarize yourself with the rest of the manual.

This preface covers the following topics:

•Who should use this manual

•The purpose of this manual

•Terms and abbreviations

•Conventions used in this manual

•Allen-Bradley support

Who Should Use This

Manual

Use this manual if you are responsible for designing, installing,

programming, or troubleshooting control systems that use

Allen-Bradley small logic controllers.

You should have a basic understanding of SLC 500 products. You

should understand programmable controllers and be able to interpret

the ladder logic instructions required to control your application. If

you do not, contact your local Allen-Bradley representative for

information on available training courses before using this product.

Purpose of This Manual

This manual is a reference guide for the module. The manual:

•gives you an overview of system operation.

•explains the procedures you need to install and wire the module

at the application site.

•provides ladder programming examples.

•provides an application example of how this input module can

be used to control a process.

Publication 1746-UM614B-EN-P - September 2007

8Preface

Additional Resources

The following documents contain information that may be helpful to

you as you use Allen-Bradley SLC products. To obtain a copy of any

of the Allen-Bradley documents listed, contact your local

Allen-Bradley office or distributor.

Common Techniques Used

in this Manual

The following conventions are used throughout this manual:

•Bulleted lists such as this one provide information, not

procedural steps.

•Numbered lists provide sequential steps or hierarchical

information.

•Text in this font indicates words or phrases you should type.

Resource Description

SLC 500 Systems Selection Guide, publication 1747-SG001 An overview of the SLC 500 family of products

SLC 500 Module Hardware Style User Manual, publication

1747-UM011 A description on how to install and use your modular SLC 500

programmable controller

Installation & Operation Manual for Fixed Hardware Style

Programmable Controllers, publication 1747-6.21 A description on how to install and use your fixed SLC 500

programmable controller

SLC 500 Instruction Set Reference Manual, publication

1747-RM001 A reference manual that contains status file data, instruction set,

and troubleshooting information about the software

SLC 500 4-Channel Analog I/O Modules User’s Manual, publication

1746-UM005 A resource manual and user’s guide containing information about

the analog modules used in your SLC 500 system.

Industrial Automation Wiring and Grounding Guidelines, publication

1770-4.1 In-depth information on grounding and wiring Allen-Bradley

programmable controllers

Application Considerations for Solid-State Controls. publication

SGI-1.1 A description of important differences between solid-state

programmable controller products and hard-wired

electromechanical devices

National Electrical Code, published by the National Fire Protection

Association of Boston, MA An article on wire sizes and types for grounding electrical

equipment

9Publication 1746-UM614B-EN-P - September 2007

Chapter

Module Overview

This chapter describes the thermocouple/millivolt isolated input

module and explains how the SLC controller reads thermocouple or

millivolt analog input data from the module. The following

information is included:

•Compliance with European Union Directives

•General description and hardware features

•An overview of system and module operation

•Block diagram of channel input circuits

Compliance with European

Union Directives

If this product has the CE mark, it is approved for installation within

the European Union and EEA regions. It has been designed and tested

to meet the following directives.

EMC Directive

This product is tested to meet Council Directive 89/336/EEC

Electromagnetic Compatibility (EMC) and the following standards, in

whole or in part, documented in a technical construction file:

•EN 50081-2EMC — Generic Emission Standard, Part 2 —

Industrial Environment

•EN 50082-2EMC — Generic Immunity Standard, Part 2 —

Industrial Environment

This product is intended for use in an industrial environment.

Low Voltage Directive

This product is tested to meet Council Directive 73/23/EEC Low Voltage,

by applying the safety requirements of EN 61131–2 Programmable

Controllers, Part 2 — Equipment Requirements and Tests.

For specific information required by EN 61131-2, see the appropriate

sections in this publication, as well as the Industrial Automation

Wiring and Grounding Guidelines (for noise immunity), publication

1770-4.1.

This equipment is classified as open equipment and must be mounted

in an enclosure during operation to provide safety protection.

Publication 1746-UM614B-EN-P - September 2007

10 Module Overview

General Description

The module stores digitally-converted thermocouple and/or millivolt

(mV) analog data in its image table for retrieval by all fixed and

modular SLC 500 processors. The module supports connections from

any combination of up to four thermocouple and/or mV analog

sensors.

Input Ranges

The following tables define thermocouple types and associated

temperature ranges and the millivolt analog-input signal ranges that

each of the module’s input channel supports.

Refer to the specifications in Appendix A to determine the practical

temperature range of your thermocouple.

Each input channel is individually configurable for a specific input

device, and provides open-circuit, over-range, and under-range

detection and indication.

Thermocouple Temperature Ranges

Type °C Temperature Range °F Temperature Range

C0…2317 32… 4201

D0… 2317 32…4201

J-210…760 -346…1400

K-270…1370 -454…2498

T-270…400 -454…752

B300…1820 572…3308

E-270…1000 -454…1832

R0…1768 32…3214

S0…1768 32…3214

N0…1300 32…2372

CJC Sensor 0…85 32…185

Millivolt Input Ranges

-50…50 mV

-100…100 mV

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