Rockwell Automation 1771-IFMS Bedienungsanleitung

User Manual

(Catalog Numbers

1771-IFMS

)

Intrinsically Safe Fast Millivolt

Input Module

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://www.rockwellautomation.com/literature/) 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, Rockwell Automation, and TechConnect 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.

iPublication 1771-6.5.119

Table of Contents

Preface

About this Manual

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

Vocabulary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

What This Manual Contains . . . . . . . . . . . . . . . . . . . . . . . . P-1

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-2

Chapter 1

Overview of the Intrinsically Safe

Fast Millivolt Input Module

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Module Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

How Analog Modules Communicate with

Programmable Controllers . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Installing Your Module. . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Extended Input Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Chapter 2

Install the Module

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Before You Install the Module . . . . . . . . . . . . . . . . . . . . . . 2-1

Module Location in the 1771 Chassis . . . . . . . . . . . . . . . . . 2-4

Key the Backplane Connector . . . . . . . . . . . . . . . . . . . . . . 2-5

Install the Module and Wiring Arm . . . . . . . . . . . . . . . . . . 2-5

Wire the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Ground the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Chassis Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Single-point Grounding . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Status Indicator Behavior. . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Chapter 3

Module Programming

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Block Transfer Programming . . . . . . . . . . . . . . . . . . . . . . . 3-1

PLC-5 Program Example. . . . . . . . . . . . . . . . . . . . . . . . 3-2

PLC-3 Program Example. . . . . . . . . . . . . . . . . . . . . . . . 3-3

PLC-2 Program Example. . . . . . . . . . . . . . . . . . . . . . . . 3-4

Extended Input Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Module Scan Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Publication 1771-6.5.119

ii Table of Contents

Chapter 4

Module Configuration

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Configuring Your Input Module. . . . . . . . . . . . . . . . . . . . . 4-1

Input Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Digital Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Real Time Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Implementing the Scaling Feature. . . . . . . . . . . . . . . . . 4-4

Scaling Ranges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Fast Millivolt Input Module Default Settings . . . . . . . . . . . . 4-5

Bit/Word Descriptions for the Configuration Block. . . . . . . 4-5

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Chapter 5

Module Status and Input Data

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Reading Data From Your Module. . . . . . . . . . . . . . . . . . . . 5-1

Block Transfer with the Fast Millivolt Input Module . . . . . . 5-2

BTR Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Chapter 6

Module Calibration

Chapter Objective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Hot to Calibrate the Fast Millivolt Input Module . . . . . . . . . 6-1

Adjusting the Internal Offset Voltage. . . . . . . . . . . . . . . 6-2

Chapter 7

Troubleshooting

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Diagnostics Reported by the Module . . . . . . . . . . . . . . . . . 7-1

Analog Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Appendix A

Specifications

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Appendix B

Programming Examples

Sample Programs for the Analog Input Module . . . . . . . . . B-1

PLC-5 Family Processors . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

PLC-3 Family Processors . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

PLC-2 Family Processors . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Publication 1771-6.5.119

Table of Contents iii

Appendix C

Data Formats

4-Digit Binary Coded Decimal (BCD). . . . . . . . . . . . . . . . . C-1

(12-bit) Binary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Appendix D

Block Transfer (Mini-PLC-2 and

PLC-2/20 Processors)

Mulitple GET Instructions - Mini-PLC-2 and

PLC-2/20 Processors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Setting the Block Length (Multiple GET Instructions only). . D-3

Appendix E

Installation Drawing

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

Publication 1771-6.5.119

iv Table of Contents

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