Rockwell Automation 1746-NI16V User Manual

SLC 500™ Analog Input Modules

Catalog Numbers 1746-NI16I and 1746-NI16V

User Manual

Important User Information

Because of the variety of uses for the products described in this publication, those responsible for the application and use of this control equipment must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements, including any applicable laws, regulations, codes and standards.

The illustrations, charts, sample programs and layout examples shown in this guide are intended solely for purposes of example. Since there are many variables and requirements associated with any particular installation, Allen-Bradley does not assume responsibility or liability (to include intellectual property liability) for actual use based upon the examples shown in this publication.

Allen-Bradley publication SGI-1.1, Safety Guidelines for the

Application, Installation and Maintenance of Solid-State Control

(available from your local Allen-Bradley office), describes some important differences between solid-state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication.

Reproduction of the contents of this copyrighted publication, in whole or part, without written permission of Rockwell Automation, is prohibited.

Throughout this manual we use notes to make you aware of safety considerations:

ATTENTION

Identifies information about practices or circumstances that can lead to personal injury or death, property damage or economic loss

Attention statements help you to:

identify a hazard

•

avoid a hazard

•

recognize the consequences

•

IMPORTANT

ControlNet is a trademark of Rockwell Automation

SLC 500 is a trademark of Rockwell Automation.

RSLogix 500 is a trademark of Rockwell Automation.

Belden is a trademark of Belden, Inc.

Identifies information that is critical for successful application and understanding of the product.

Overview

Preface

Who Should Use this Manual. . . . . . . . . . . . . . . . . . . . . . . P-1

Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

Contents of this Manual . . . . . . . . . . . . . . . . . . . . . . . . P-2

Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . P-3

Common Techniques Used in this Manual . . . . . . . . . . . . . P-4

Allen-Bradley Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-4

Local Product Support . . . . . . . . . . . . . . . . . . . . . . . . . P-4

Technical Product Assistance . . . . . . . . . . . . . . . . . . . . P-4

Your Questions or Comments on this Manual . . . . . . . . P-4

Chapter 1

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Hardware Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

General Diagnostic Features . . . . . . . . . . . . . . . . . . . . . 1-3

System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Module Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Module Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Quick Start for Experienced Users

Installation and Wiring

Chapter 2

Required Tools and Equipment . . . . . . . . . . . . . . . . . . . . . 2-1

Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Chapter 3

Hazardous Location Considerations . . . . . . . . . . . . . . . . . . 3-1

Environnements dangereux . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Electrostatic Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

1746-NI16 Power Requirements . . . . . . . . . . . . . . . . . . . . . 3-3

Module Location in Chassis . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Modular Chassis Considerations . . . . . . . . . . . . . . . . . . 3-3

Fixed Expansion Chassis Considerations . . . . . . . . . . . . 3-3

General Considerations . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Compliance to European Union Directives . . . . . . . . . . . . . 3-6

EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Module Installation and Removal . . . . . . . . . . . . . . . . . . . . 3-7

Terminal Block Removal . . . . . . . . . . . . . . . . . . . . . . . 3-7

Module Installation Procedure . . . . . . . . . . . . . . . . . . . 3-8

Module Removal Procedure . . . . . . . . . . . . . . . . . . . . . 3-8

Terminal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Terminal Block

Pre wired Cables and Terminal Blocks . . . . . . . . . . . . . 3-9

Wiring Single-Ended Inputs . . . . . . . . . . . . . . . . . . . . . 3-10

Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

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Table of Contents ii

Preliminary Operating Considerations

Input Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Transducer Source Impedance . . . . . . . . . . . . . . . . . . . 3-13

Wiring Input Devices to the 1746-NI16 . . . . . . . . . . . . . 3-13

Chapter 4

Module ID Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Class 1 and Class 3 Interface . . . . . . . . . . . . . . . . . . . . . . . 4-2

Module Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Class 1 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Class 3 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Output Image - Configuration Words . . . . . . . . . . . . . . 4-5

Input Image - Data Words and Status Words. . . . . . . . . 4-5

Module Update Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Channel Filter Frequency Selection . . . . . . . . . . . . . . . . . . 4-9

Channel Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Response to Slot Disabling . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Input Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Output Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Channel Configuration, Data, and Status

Chapter 5

Channel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Output Image Channel Configuration Procedure . . . . . . . . 5-2

Channel Configuration Word . . . . . . . . . . . . . . . . . . . . 5-3

Select Channel Enable (Bit 15) . . . . . . . . . . . . . . . . . . . 5-4

Select Channel Filter Frequency (Bits 14 through 12). . . 5-4

Select Calibration Mode (Bits 11 through 9) . . . . . . . . . 5-5

Select Data Format (Bits 8 through 6) . . . . . . . . . . . . . . 5-6

Select Input Type (Bits 5 and 4) . . . . . . . . . . . . . . . . . . 5-6

Unused Bit (Bit 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Class 1 Handshaking (Bit 2) . . . . . . . . . . . . . . . . . . . . . 5-7

Class 1 Data or Status Configuration (Bits 1 and 0) . . . . 5-7

Input Image - Channel Data Word . . . . . . . . . . . . . . . . . . . 5-8

Scaling the Channel Data Word . . . . . . . . . . . . . . . . . . . . . 5-10

Data Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Scaling Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Engineering Units to Real Units . . . . . . . . . . . . . . . . . . 5-13

Scaled-for-PID to Real Units . . . . . . . . . . . . . . . . . . . . . 5-14

Proportional Counts to Real Units. . . . . . . . . . . . . . . . . 5-14

1746-NI4 Data Format Units to Real Units . . . . . . . . . . . 5-15

User-Defined Scaling Data Format to Real Units . . . . . . 5-15

Channel Status Checking . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Class 1 Status Word. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

Class 3 Status Word. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Input Word Bit Definitions . . . . . . . . . . . . . . . . . . . . . . . . 5-20

Error Conditions (Bits 15 through 13) . . . . . . . . . . . . . . 5-20

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Module Diagnostics and Troubleshooting

Table of Contents iii

Filter Frequency (Bits 12 through 10) . . . . . . . . . . . . . . 5-20

Calibrate Channel Status (Bits 9 through 7) . . . . . . . . . . 5-21

Class 1 Handshaking (Bit 6) . . . . . . . . . . . . . . . . . . . . . 5-21

Class 3 Data Format (Bits 6 through 4) . . . . . . . . . . . . . 5-21

Class 1 Data Format (Bits 5 and 4) . . . . . . . . . . . . . . . . 5-21

Input Type (Bits 3 and 2) . . . . . . . . . . . . . . . . . . . . . . . 5-22

Class 1 Data or Status Configuration (Bits 1 and 0) . . . . 5-22

Chapter 6

Module operation vs. Channel Operation . . . . . . . . . . . . . . 6-1

Power-Up Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Channel Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Invalid Channel Configuration . . . . . . . . . . . . . . . . . . . 6-2

Out-Of-Range Detection. . . . . . . . . . . . . . . . . . . . . . . . 6-2

Open-Circuit Detection . . . . . . . . . . . . . . . . . . . . . . . . 6-3

LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

LED State Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Module Status LED (Green) . . . . . . . . . . . . . . . . . . . . . 6-4

Channel Status LEDs (Green) . . . . . . . . . . . . . . . . . . . . 6-5

Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Troubleshooting Flowchart . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Replacement parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Contacting Allen-Bradley . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Application Examples

Specifications

Chapter 7

Operating Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Class 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Class 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Class 1 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Ladder Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Data File N7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

Class 3 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18

Ladder File 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

Data File N7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

Appendix A

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Physical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . A-2

Input Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

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Table of Contents iv

Configuration Worksheet

Two’s Complement Binary Numbers

Calibration

Appendix B

Appendix C

Positive Decimal Values . . . . . . . . . . . . . . . . . . . . . . . . C-1

Negative Decimal Values . . . . . . . . . . . . . . . . . . . . . . . C-2

Appendix D

Calibration Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Glossary

Index

Publication 1746-UM001A-US-P

Preface

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

•

contents of this manual

•

Purpose of this Manual

Use this manual if you are responsible for the design, installation, programming, or maintenance of an automation control system that uses Allen-Bradley small logic controllers.

You should have a basic understanding of SLC 500™ products. You should understand electronic process control and be able to interpret the ladder logic instructions required to generate the electronic signals that control your application.

If you do not, contact your local Allen-Bradley representative for the proper training before using this product.

This manual is a learning and reference guide for the 1746-NI16 Analog Input Module. It contains the information you need to install, wire, and configure the module. It also provides diagnostic and troubleshooting information and application examples.

1 Publication 1746-UM001A-US-P

Preface 2

Contents of this Manual

Chapter Title Content

Preface Describes the purpose, background, and scope

of this manual. Also specifies the audience for whom this manual is intended and gives directions to using Allen-Bradley support services. Provides listing of related documentation.

1 Overview Provides a hardware and system overview.

Explains and illustrates the theory behind the input module.

2 Quick Start for

Experienced Users

3 Installation and

Wiring

4 Preliminary Operating

Considerations

5 Channel

Configuration Data and Status

6 Module Diagnostics

and Troubleshooting

7 Application Examples Examines both basic and supplementary

Appendix A Specifications Provides physical, electrical, environmental, and

Appendix B Configuration

Worksheet

Appendix C Two’s Complement

Binary Numbers

Serves as a Quick Start Guide for the experienced user.

Provides installation information and wiring guidelines.

Gives you the background information you need to understand how to address and configure the module for optimum operation as well as how to make changes once the module is in a run state.

Examines the channel configuration word and the channel status word, bit by bit, and explains how the module uses configuration data and generates status during operation.

Explains how to interpret and correct problems that may occur while using the module.

applications and gives examples of the ladder logic necessary to achieve the desired result.

functional specifications for the module. Provides a worksheet to help configure the

module for operation. Describes the two’s compliment binary number

system.

Publication 1746-UM001A-US-P

Appendix D Calibration Describes how to calibrate the 1746-NI16

module.

Glossary Lists key terms and abbreviations.

Preface 3

Common Techniques Used in this Manual

Allen-Bradley Support

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

•

Key names appear in bold, capital letters within brackets (for

•

example,

Allen-Bradley offers support services worldwide, with over 75 Sales/ Support Offices, 512 authorized Distributors and 260 authorized Systems Integrators located throughout the United States alone, plus Allen-Bradley representatives in every major country in the world.

this f o nt

[ENTER]

indicates words or phrases you should type.

Local Product Support

Contact your local Allen-Bradley representative for:

sales and order support

•

product technical training

•

warranty support

•

support service agreements

•

Technical Product Assistance

If you need to contact Allen-Bradley for technical assistance, please review the information in the Troubleshooting chapter first. Then call your local Allen-Bradley representative.

Your Questions or Comments on this Manual

If you find a problem with this manual, please notify us of it on the enclosed Publication Problem Report.

If you have any suggestions for how this manual could be made more useful to you, please contact us at the address below:

Allen-Bradley Control and Information Group Technical Communication, Dept. A602V, T122 P.O. Box 2086 Milwaukee, WI 53201-2086

Publication 1746-UM001A-US-P

Chapter

Overview

This chapter describes the 1746-NI16 analog input module and explains how the SLC 500 processor gathers analog input data from the module. Included is information about:

the module’s hardware and diagnostic features

•

an overview of system operation

•

General Description

The module receives and stores digitally converted analog data into its image table for retrieval by all fixed and modular SLC 500 processors. The modules, 1746-NI16V and 1746-NI16I, support connections for up to 16 voltage or current analog sensors.

The 1746-NI16 is a multi-class (Class 1 or Class 3) single-slot module.

(1)

Class 1 Class 3 configuration utilizes 32 input words and 32 output words. Fixed and SLC 5/01 processors can only operate as Class 1. When the module is used in a remote I/O chassis with a 1747-ASB, it can only operate in Class 1 mode. The SLC 5/02, SLC 5/03, SLC 5/04 and SLC 5/05 processors can be configured for either Class 1 or Class 3. When the module is used in a remote ControlNet™ chassis with a 1747-ACN(R), it can also operate in either Class 1 or Class 3 mode. Operate the module in Class 3 mode whenever possible.

The 16 high-impedance input channels can be wired as single-ended inputs. The module provides a direct interface to the following input types:

configuration utilizes 8 input words and 8 output words.

±10V dc

•

1 to 5V dc

•

0 to 5V dc

•

0 to 10V dc

•

0 to 20 mA

•

4 to 20 mA

•

20 mA

•

0 to 1 mA

•

(1)

Requires use of block transfer in a remote configuration.

1 Publication 1746-UM001A-US-P

1-2 Overview

The data presented to the processor can be configured as:

Engineering Units

•

Scaled-for-PID

•

Proportional Counts (-32,768 to +32,767 range)

•

Proportional Counts with User Defined Range (Class 3 Only)

•

1746-NI4 Data Format

•

Each input channel also provides open-circuit, out-of-range, and invalid configuration indication via the LED’s. These conditions are also displayed in the channel status word.

Hardware Features

The module fits into any slot, except the processor slot (0), in either an SLC 500 modular system or an SLC 500 fixed system expansion chassis (1746-A2).

Channel Status LEDs (Green)

Module Status LED (Green)

Removable Terminal Block

The module contains a removable terminal block, providing connection for 16 analog input channels, which are specifically designed to interface with analog current and voltage input signals. The channels can only be wired as single-ended inputs. There are no output channels on the module. The module is configured via the user program. The following graphic displays the main hardware features.

Label

Cable Tie Slots

Publication 1746-UM001A-US-P

Self-locking Tabs

Hardware Feature Function

Overview 1-3

Channel Status LED Indicators

Module Status LED Displays module operating and fault status. Side Label (Nameplate) Provides module information. Removable Terminal

Block Door Label Permits easy terminal identification. Cable Tie Slots Secures and routes wiring from the module. Self-Locking Tabs Secures module in the chassis slot.

Displays channel operating and fault status.

Provides physical connection to input devices.

General Diagnostic Features

The 1746-NI16 module contains diagnostic features to help identify the source of problems that may occur during power-up or during normal channel operation. These power-up and channel diagnostics are explained in Chapter 6, Module Diagnostics and Troubleshooting.

The module communicates to the SLC 500 processor through the parallel backplane interface and receives power from the SLC 500 power supply through the backplane. The +5V dc backplane supply powers the SLC circuitry and the +24V dc backplane supply powers the module analog circuitry. No external power supply is required. You may install as many 1746-NI16 analog modules in a 1746 chassis as the chassis power supply can support.

System Overview

The NI16I can only receive current inputs. The NI16V can only receive voltage inputs.

System Operation

At power-up, the module performs a check of its internal circuits, memory, and basic functions. During this time, the module status LED remains off. If no faults are found during the power-up diagnostics, the module status LED is turned ON.

After power-up checks are complete, the module waits for valid channel configuration data from the SLC ladder logic program (channel status LEDs off). After configuration data is written to one or more channel configuration words and the channel enable status bits are set, the channel status LEDs are turned ON and the module continuously converts the analog input to a value within the range selected in the configuration word.

Publication 1746-UM001A-US-P

1-4 Overview

Each time a channel is read by the module, that data value is tested by the module for a fault condition (i.e., open-circuit, over-range, and under-range). If a fault condition is detected, a unique bit is set in the channel status word and the channel status LED blinks.

The SLC processor reads the converted analog data from the module at the end of the program scan or when commanded by the ladder program. If the processor and module determine that the backplane data transfer was made without error, the data is used in your ladder program. A graphic representation of this is shown below.

Data Transfer Between the Module and Processor (shown for one channel)

Voltage or Current Analog Channel Input

1746-NI16 Analog Input Module

Channel Data Word

Channel Status Word

Channel Configuration Word from Ladder Program

SLC 500 Processor

Module Operation

The 1746-NI16 module’s input circuitry consists of four analog-to-digital (A/D) converters. Each of the 4 A/D converters multiplex 4 inputs for a total of 16 single-ended inputs.

The A/D converters read the selected input signal and convert it to a digital value. The multiplexer sequentially switches each input channel to the module’s A/D converter. Multiplexing provides an economical means for a single A/D converter to convert multiple analog signals. However, multiplexing also affects the speed at which an input signal can change and still be detected by the converter.

Publication 1746-UM001A-US-P

Module Calibration

The 1746-NI16 module is already factory calibrated and ready for use. Although factory calibration is suitable for most applications, the module can be calibrated by the user. See Appendix D for more information on calibration.

Chapter

Quick Start for Experienced Users

This chapter can help you to get started using the 1746-NI16 analog input module. The procedures here are based on the assumption that the user has an understanding of SLC 500™ products. The user should understand electronic process control and be able to interpret the ladder logic instructions required to generate the electronic signals that control the application.

Because this chapter is a start-up guide for experienced users, this chapter does not contain detailed explanations about the procedures listed. It does, however, reference other chapters in this book where you can get more information about applying the procedures described in each step. It also references other documentation that may be helpful if you are unfamiliar with programming techniques or system installation requirements.

Required Tools and Equipment

If you have any questions or are unfamiliar with the terms used or concepts presented in the procedural steps, always read the referenced chapters and other recommended documentation before trying to apply the information.

This chapter will:

tell you what equipment you need

•

explain how to install and wire the module

•

show you how to set up one channel for analog input

•

examine the state of the LEDs at normal startup

•

examine the channel status word

•

Have the following tools and equipment ready:

medium blade screwdriver

•

medium cross-head screwdriver

•

analog input device

•

cable for wiring inputs to module

•

SLC processor and power supply installed in chassis

•

analog input module (1746-NI16)

•

programming device and software

•

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2-2 Quick Start for Experienced Users

Procedures

1. Check the contents of shipping box. Reference

Unpack the shipping box making sure that the contents include:

analog input module (Catalog Number 1746-NI16)

•

removable terminal block (factory-installed)

•

Installation Instructions

•

If the contents are incomplete, call your local Allen-Bradley representative for assistance.

2. Ensure that your chassis and power supply support the 1746-NI16 module. Reference

If you are installing the module in a hazardous location, read “Hazardous Location Considerations” on page 3-1. Review the power requirements of your system to ensure that your chassis supports the module:

If you are combining a 1746-NI16 module with another I/O module in a fixed controller, refer to the I/O

•

module compatibility table found in Chapter 3. For modular style systems, calculate the total load on the system power supply using the procedure

•

described in the the

SLC 500 Family System Overview

The 1746-NI16 backplane current consumption is 125 mA at 5V dc and 75 mA at 24V dc.

•

SLC Installation & Operation Manual for Modular Style Controllers

(publication 1747-2.30).

(publication 1747-6.2) or

Chapter 3

(Installation and

Wiring)

Appendix A

(Specifications)

Publication 1746-UM001A-US-P

Quick Start for Experienced Users 2-3

3. Insert the 1746-NI16 module into the chassis. Reference

ATTENTION

Never install, remove, or wire modules with power applied to the chassis or devices wired to the module.

Make sure system power is off; then insert the module into your 1746 chassis. In this example procedure, local slot 1 is selected. Any slot may be used except 0.

Chapter 3

(Installation and

Wiring)

Top and Bottom Module Releases

Card Guide

4. Connect sensor cable. Reference

Connect sensor cable to the module’s terminal block.

Important:

Follow these guidelines when wiring the module:

Use shielded communication cable (Belden™ 8761) and keep length as short as possible.

•

Connect only one end of the cable shield to earth ground.

•

Connect all the shields to the earth ground at the SLC 500™ chassis mounting tab.

•

Single-ended source commons may be jumpered together at the terminal block.

•

Channels are not isolated from each other. All analog commons are connected together internally.

•

Common mode voltage range is ±10.25 volts. The voltage between any two terminals must be less than

•

20.5 volts. The module does not provide power for the analog input transmitters or sensors.

•

Use a power supply that matches the transmitter (sensor) specifications.

•

Terminal Bl ock

IN 0 IN 2

IN 4 IN 6

Analog Com

IN 1

IN 3 IN 5 IN 7

Analog Com

Sensor Cable

Chapter 3

(Installation and

Wiring)

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2-4 Quick Start for Experienced Users

5. Configure the system. Reference

Configure your system I/O for the particular slot the 1746-NI16 is in (slot 1 in this example). Enter the module ID code. The ID code is for Class 1 interface or Class 3 interface. See Chapter 4 for more information on Class 1 and Class 3 interfaces.

Chapter 4

(Preliminary

Operating

Considerations)

Important:

Not all programming software supports configuration for Class 3 operation.

Advanced Programming Software (APS) supports Class 3 configuration, after entering the ID code.

•

SLC 500 A.I. Series Programming Software supports Class 3 configuration, after entering the ID code.

•

RSLogix 500, version 1.30 or later, supports Class 3 configuration, after entering the ID code.

•

Earlier versions of RSLogix 500 only supports configuration for Class 1 operation. Contact Rockwell

•

Software for information on upgrading your software.

Appendix C

(Converting from

1746-NI4 or 1746-NI8 to

1746-NI16)

Device’s user

manual.

6. Determine the operating parameters. Reference

Determine the operating parameters for channel 0. This example shows the channel 0 configuration word. The module is in slot 1. The default configuration word is all zeros.

1115 3 214 13 12 10 9 8 76 54 10

01 0 0010 00 0 00 00 00

Bit Number

Channel 0

Chapter 4

(Preliminary Openin g

Considerations)

Chapter 5

(Channel

Configuration,

• Class 1, Data or Status Configuration

• Class 1 Handshaking

• Not Used

• Input Type: ± 10 V dc

• Data Format: Engineering Units

• Calibration

• Filter Frequency: 20 Hz

• Channel Enable: Enabled

Data and Status)

Appendix B

(1746-NI16

Configuration

Worksheet)

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1746-NI16 Module Output Image - Channel Configuration

Class 1 Class 3

O:1.0 channel 0 configuration word bit-mapped field • • O:1.1 channel 1 configuration word bit-mapped field • • O:1.2 channel 2 configuration word bit-mapped field • • O:1.3 channel 3 configuration word bit-mapped field • • O:1.4 channel 4 configuration word bit-mapped field • • O:1.5 channel 5 configuration word bit-mapped field • • O:1.6 channel 6 configuration word bit-mapped field • • O:1.7 channel 7 configuration word bit-mapped field • • O:1.8 channel 8 configuration word bit-mapped field • O:1.9 channel 9 configuration word bit-mapped field • O:1.10 channel 10 configuration word bit-mapped field • O:1.11 channel 11 configuration word bit-mapped field • O:1.12 channel 12 configuration word bit-mapped field • O:1.13 channel 13 configuration word bit-mapped field • O:1.14 channel 14 configuration word bit-mapped field • O:1.15 channel 15 configuration word bit-mapped field • O:1.16 lower scale limit range 0 16-bit integer • O:1.17 upper scale limit range 0 16-bit integer • O:1.18 lower scale limit range 1 16-bit integer • O:1.19 upper scale limit range 1 16-bit integer • O:1.20 lower scale limit range 2 16-bit integer • O:1.21 upper scale limit range 2 16-bit integer • O:1.22 lower scale limit range 3 16-bit integer • O:1.23 upper scale limit range 3 16-bit integer •

Quick Start for Experienced Users 2-5

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2-6 Quick Start for Experienced Users

7. Program the configuration. Reference

Do the programming necessary to establish the new configuration word setting in the previous step.

1. Create integer file N10. Integer file N10 should contain one element for each channel used. (For this example we only need one, N10:0.)

2. Enter the configuration parameters from step 6 for channel 0 into integer N10:0.

3. Program an instruction in your ladder logic to copy the contents of N10:0 to output word O:1.0.

DATA FILE N10

Offset 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 N10:0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0

First Pass Bit

S:1

] [

Initialize 1746-NI16

COP COPY FILE Source #N10:0 Dest #O:1.0 Length 1

On powerup, the first pass bit (S:1/15) is set for one scan, enabling the MOV instruction that transfers the channel configuration word 0. This configures and enables channel 0.

Chapter 7

(Application Examples)

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Quick Start for Experienced Users 2-7

8. Write the ladder program. Reference

Write the remainder of the ladder logic program that specifies how your analog input data is processed for your application. In this procedure the module is located in slot 1.

1112131415 910 8 67450123

0000000000000000

Bit Number

Channel 0 data Word (Variable input data)

1746-NI16 Module Input Image - Data Word

I:1.0 Channel 0 data word

I:1.1 Channel 1 data word

I:1.2 Channel 2 data word

I:1.3 Channel 3 data word

I:1.4 Channel 4 data word

I:1.5 Channel 5 data word

I:1.6 Channel 6 data word

(Channel Configuration,

(Application Examples)

Your programming device’s

(1)

Class 1

14-bit integer (bits 1 and 0 = 00)

Chapter 5

Data and Status)

Chapter 7

user manual.

Class 3

(2)

16-bit integer

(2)

16-bit integer

(2)

16-bit integer

(2)

16-bit integer

(2)

16-bit integer

(2)

16-bit integer

(2)

16-bit integer

I:1.7 Channel 7 data word

I:1.8 Channel 8 data word

I:1.9 Channel 9 data word

I:1.10 Channel 10 data word

I:1.11 Channel 11 data word

I:1.12 Channel 12 data word

I:1.13 Channel 13 data word

I:1.14 Channel 14 data word

I:1.15 Channel 15 data word

(1) In Class 1, the error is ± 3 LSB of the Class 3 resolution. (2) Bits 1 and 0 of the data word are overwritten in Class 1 to indicate data from Channels 0 to 7 (3) Bits 1 and 0 of the data word are overwritten in Class 1 to indicate data from Channels 8 to 15

14-bit integer (bits 1 and 0 = 00)

14-bit integer (bits 1 and 0 = 01)

(2)

16-bit integer

(3)

16-bit integer

(3)

16-bit integer

(3)

16-bit integer

(3)

16-bit integer

(3)

16-bit integer

(3)

16-bit integer

(3)

16-bit integer

(3)

16-bit integer

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2-8 Quick Start for Experienced Users

9. Go through the system start-up procedure. Reference

Apply power. Download your program to the SLC 500 processor and put the controller into Run mode. During a normal start up, the module status LED and any enabled channel status LED turn on.

Chapter 6

(Module Diagnostics and

Troubleshooting)

INPUT

0-3 4-7

Channel Status LEDs

Module Status LED

ANALOG MODULE

8-11 12-15

10. Check that the module is operating correctly. Reference

(Optional) If the Module Status LED is off, or if the Channel 0 LED is off or blinking, refer to Chapter 6. Class 3 Interface - Monitor the status of input channel 0 to determine its configuration setting and operational status. This is useful for troubleshooting when the blinking channel LED indicates that an error

Chapter 5

(Channel Configuration,

Data and Status)

has occurred. The example below shows the Class 3 status word for channel 0 with no errors.

Chapter 6

(Module Diagnostics and

Troubleshooting)

12 415 14 13 11 10 9 87 65 32

0 0111 10 0 00 00 00

Publication 1746-UM001A-US-P

Bit Number

Channel 0 Status Word (I:1.8)

• Class 1 Data or Status Configuration

• Input Type

• Data Format

• Calibrate Channel Status

• Filter Frequency

• Error Conditions

Chapter 7

(Application Examples)

Installation and Wiring

This chapter tells you how to:

avoid electrostatic damage

•

determine the chassis power requirement for the module

•

choose a location for the module in the SLC chassis

•

install the module

•

wire the module’s terminal block

•

wire input devices

•

Chapter

Hazardous Location Considerations

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or non-hazardous locations only. The following ATTENTION statement applies to use in hazardous locations.

ATTENTION

EXPLOSION HAZARD

Substitution of components may impair suitability

•

for Class I, Division 2.

Do not replace components or disconnect

•

equipment unless power has been switched off.

Do not connect or disconnect components unless

•

power has been switched off.

This product must be installed in an enclosure.

•

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3-2 Installation and Wiring

Environnements dangereux

Cet équipement est conçu pour être utilisé dans des environnements de Classe 1, Division 2, Groupes A, B, C, D ou non dangereux. La mise en garde suivante s’applique à une utilisation dans des environnements dangereux.

MISE EN GARDE

DANGER D’EXPLOSION

La substitution de composants peut rendre

•

cet équipement impropre à une utilisation en environnement de Classe 1, Division 2.

Ne pas remplacer de composants ou

•

déconnecter l'équipement sans s'être assuré que l'alimentation est coupée.

Ne pas connecter ou déconnecter des

•

composants sans s'être assuré que l'alimentation est coupée.

Ce produit doit être installé dans une

•

armoire.

Electrostatic Damage

Electrostatic discharge can damage semiconductor devices inside this module if you touch backplane connector pins. Guard against electrostatic damage by observing the following precautions.

ATTENTION

Electrostatic discharge can degrade performance or cause permanent damage. Handle the module as stated below.

Wear an approved wrist strap grounding device when handling

•

the module. Touch a grounded object to rid yourself of electrostatic charge

•

before handling the module. Handle the module from the front, away from the backplane

•

connector. Do not touch backplane connector pins. Keep the module in its static-shield bag when not in use, or

•

during shipment.

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1746-NI16 Power Requirements

Module Location in Chassis

The 1746-NI16 module receives its power through the SLC 500™ chassis backplane from the fixed or modular +5V dc/+24V dc chassis power supply. The +5V dc backplane supply powers the SLC circuitry, and the +24V dc backplane supply powers the module analog circuitry. The maximum current drawn by the module is shown in the table below.

5V dc Amps 24V dc Amps

0.125 0.075

When you are using a modular system configuration, add the values shown in the table above to the requirements of all other modules in the SLC chassis to prevent overloading the chassis power supply.

When using a fixed system controller, see “Fixed Expansion Chassis Considerations” on page 3-3.

Modular Chassis Considerations

Place your 1746-NI16 module in any slot of an SLC 500 modular, or modular expansion chassis, except for the extreme left slot (slot 0) in the first chassis. This slot is reserved for the processor or adapter modules.

ATTENTION

For applications using the upper limit of the operating temperature range, the 1746-NI16 module (or multiple 1746-NI16 modules) should be placed in the right most slot(s) of the chassis. The specification for operating temperature is:

Operating Temperature Range

0°C to 60°C (32°F to 140°F) in any slot except slot 0

Fixed Expansion Chassis Considerations

The chart on page 3-4 depicts the range of current combinations supported by the fixed I/O expansion chassis. To use it, first find the backplane current draw and operating voltage for both of the modules you plan to use in the chassis. The table on page 3-4 shows these specifications.

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3-4 Installation and Wiring

OA16 and IA16 (0, 455)

OW16 and IA16 (180, 255)

Plotted from example shown on page 3-5.

Current (mA) at 5V dc

Current (mA) at 24V dc

Next, plot each of the currents on the chart. If the point of intersection falls within the operating region, your combination is valid. If not, your combination cannot be used in a 2-slot, fixed I/O chassis. See the example on page 3-5.

450

400

350

300

250

200

150

100

50 100 150 200

Module Current Draw – Power Supply Loading

I/O Module 5V (mA) 24V (mA) I/O Module 5V (mA) 24V (mA) I/O Module 5V (mA) 24V (mA)

BAS 150 40 IN16 85 0 NT4 60 40 BASn 150 125 INT4 110 0 OA8 185 0 BLM10000 IO43025OA163700 BTM 110 85 IO8 60 45 OAP12 370 0 DCM 360 0 IO12 90 70 OB6EI 46 0 FIO4I 55 150 IO12DC 80 60 OB8 135 0 FIO4V55120ITB16850 OB162800 HS 300 0 ITV16 85 0 OB16E 135 0 HSTP1 200 0 IV8 50 0 OB32, series D 190 0 IA4 35 0 IV16 85 0 OB32E 190 0 IA8 50 0 IV32, series D 50 0 OBP8 135 0 IA16 85 0 KE 150 40 OBP16 250 0 IB8 50 0 KEn 150 125 OG16 180 0 IB16 85 0 NI4 25 85 OV8 135 0 IB32, series D 50 0 NI8 200 100 OV16 270 0 IC16 85 0 NI16 125 75 OV32, series D 190 0 IG16 140 0 NIO4I 55 145 OVP16 250 0 IH16 85 0 NIO4V 55 115 OW16 170 180 IM4 35 0 NO4I 55 195 OW4 45 45 IM8 50 0 NO4V 55 145 OW8 85 90 IM16 85 0 NR4 50 50 OX8 85 90

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Fixed Chassis Example

The following example shows how to use the chart and table on page 3-4 to determine if the module combination of an 1746-IN16 and 1746-NI16 is supported by the fixed I/O chassis.

1. Find the current draws of both modules in the table. IN16 = 85 mA at 5V dc and 0 mA at 24V dc NI16 = 125 mA at 5V dc and 75 mA at 24V dc

2. Add the current draws of both modules at 5V dc. 85 mA + 125 mA = 210 mA

3. Plot this point on the chart above (210 mA at 5V dc).

4. Add the current draws of both modules at 24V dc.

0 mA + 75 mA = 75 mA

5. Plot this point on the chart above (75 mA at 24V dc).

The resulting point of intersection is marked with an “x” on the chart above, showing that this combination falls within the operating region of the fixed I/O chassis.

IMPORTANT

When using the table, be aware that there are certain conditions that affect the compatibility characteristics of the BASIC module (BAS) and the DH-485/RS-232C module (KE).

When you use the BAS module or the KE module to supply power to a 1747-AIC Link Coupler, the Link Coupler draws its power through the module. The higher current drawn by the AIC at 24V dc is calculated and recorded in the table for the modules identified as BASn (BAS networked) or KEn (KE networked). Make sure to refer to these modules if your application uses the BAS or KE module in this way.

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3-6 Installation and Wiring

General Considerations

Most applications require installation in an industrial enclosure to reduce the effects of electrical interference. Analog inputs are highly susceptible to electrical noise. Electrical noise coupled to the analog inputs reduces the performance (accuracy) of the module.

Group your modules to minimize adverse effects from radiated electrical noise and heat. Consider the following conditions when selecting a slot for the analog input module. Position the module:

in a slot away from sources of electrical noise such as

•

hard-contact switches, relays, and AC motor drives away from modules which generate significant radiated heat,

•

such as the 32-point I/O modules (series C or earlier)

In addition, route shielded analog input wiring away from any high-voltage I/O wiring.

Compliance to European Union Directives

This product is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives.

EMC Directive

The 1746-NI16 analog input module 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 50081-2

•

EMC - Generic Emission Standard, Part 2 - Industrial Environment

EN 50082-2

•

EMC - Generic Immunity Standard, Part 2 - Industrial Environment

This product is intended for use in an industrial environment.

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Installation and Wiring 3-7

Module Installation and Removal

When installing the module in a chassis, it is not necessary to remove the terminal block from the module. However, if the terminal block is removed, use the write-on label located on the side of the terminal block to identify the module location and type.

SLOT

MODULE

•

RACK

Terminal Block Removal

ATTENTION

Remove power before removing or inserting this module. When you remove or insert a module with power applied, an electrical arc may occur. An electrical arc can cause personal injury or property damage by:

sending an erroneous signal to your system’s field

•

devices, causing unintended machine motion. causing an explosion in a hazardous environment

•

Electrical arcing causes excessive wear to contacts on both the module and its mating connector. Worn contacts may create electrical resistance.

To remove the terminal block:

1. Loosen the two terminal block release screws.

2. Grasp the terminal block at the top and bottom and pull

outward and down.

Terminal Block Release Screws

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3-8 Installation and Wiring

Module Installation Procedure

1. Read the “Module Location in Chassis” section beginning on page 3-3.

2. Align the circuit board of the analog input module with the card guides located at the top and bottom of the chassis.

3. Slide the module into the chassis until both top and bottom retaining clips are secured. Apply firm, even pressure on the module to attach it to its backplane connector. Never force the module into the slot.

4. Cover all unused slots with the Card Slot Filler, catalog number 1746-N2.

Top and Bottom Module Release(s)

Card Guide

Module Removal Procedure

1. Press the releases at the top and bottom of the module and slide the module out of the chassis slot.

2. Cover all unused slots with the Card Slot Filler, catalog number 1746-N2.

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