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Allen-Bradley 1756-IB16 User Manual

Allen-Bradley 1756-IB16
258 pages
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ControlLogix Digital I/O Modules
Catalog Numbers 1756-IA8D, 1756-IA16, 1756-IA16I, 1756-IA32, 1756-IB16, 1756-IB16D, 1756-IB16I, 1756-IB16IF, 1756-IB32,
1756-IC16, 1756-IG16, 1756-IH16I, 1756-IM16I, 1756-IN16, 1756-IV16, 1756-IV32, 1756-OA8, 1756-OA8D, 1756-OA8E,
1756-OA16, 1756-OA16I, 1756-OB8, 1756-OB8EI, 1756-OB8I, 1756-OB16D, 1756-OB16E, 1756-OB16I, 1756-OB16IEF,
1756-OB16IEFS, 1756-OB16IS, 1756-OB32, 1756-OC8, 1756-OG16, 1756-OH8I, 1756-ON8, 1756-OV16E, 1756-OV32E,
1756-OW16I, 1756-OX81
User Manual

Table of Contents

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Allen-Bradley 1756-IB16 Specifications

General IconGeneral
Product TypeDigital Input Module
Number of Inputs16
Input Voltage24V DC
CategoryControl Unit
Input Voltage Range10-30V DC
Input Current7 mA
Input Delay1 ms
Backplane Current @ 24V DC0.1 A
Isolation Voltage50V DC continuous, Basic Insulation Type, tested at 1500V DC for 60 s
Operating Temperature0 to 60 °C
Storage Temperature-40 to 85 °C
Relative Humidity5 to 95% non-condensing
Module LocationChassis
Module Width1.5 in
CompatibilityControlLogix

Summary

Preface

Studio 5000 Environment

Introduces the Studio 5000 Engineering and Design Environment for programming ControlLogix controllers.

Chapter 1: What Are ControlLogix Digital I/O Modules?

Chapter 2: Digital I/O Operation in the ControlLogix System

Ownership

Explains how I/O modules are owned by controllers, and the functions of an owner-controller.

Internal Module Operation

Explains signal propagation delays inherent to modules and user-configurable filter times.

Input Module Operation

Explains how controllers obtain input status via multicast data upon change of state or requested packet interval.

Output Module Operation

Explains how owner-controllers send output data to modules at task end or RPI, and the concept of output data echo.

Chapter 3: Common Module Features

Input Module Compatibility

Explains how digital input modules interface with sensing devices and convert signals to logic levels.

Output Module Compatibility

Discusses how output modules drive various output devices and guidelines for system design.

Common Features

Lists features common to all ControlLogix digital I/O modules, including RIUP and module fault reporting.

Electronic Keying

Describes how electronic keying prevents communication to modules that don't match type and revision expectations.

Module Inhibiting

Details how to suspend a connection between an owner-controller and an I/O module for maintenance or upgrades.

Use the System Clock to Timestamp Inputs and Schedule Outputs

Explains using Coordinated System Time (CST) for timestamping inputs and scheduling outputs.

Use CIP Sync Time with Fast I/O Modules

Describes using CIP Sync for precise real-time synchronization of controllers and devices.

Electronic Fusing

Describes internal electronic or mechanical fusing that protects output modules from overcurrent damage.

Time-scheduled Output Control

Describes the feature allowing modules to turn outputs On or Off at a scheduled time.

Chapter 4: Diagnostic Module Features

Diagnostic Input Module Compatibility

Discusses factors to consider when designing systems with diagnostic input modules.

Diagnostic Output Module Compatibility

Explains that diagnostic output modules drive digital inputs and may require a shunt resistor for leakage current.

Diagnostic Latch of Information

Details how diagnostic I/O modules latch faults, even if the error condition clears, and how to enable/disable it.

Diagnostic Timestamp

Explains how diagnostic I/O modules timestamp faults or clears using the ControlLogix system clock.

Point-level Fault Reporting

Describes how diagnostic I/O modules set bits to indicate faults on a point-by-point basis.

Open Wire Detection

Details the feature used to verify field wiring connection by checking for minimum leakage current.

Field Power Loss Detection

Describes the feature on output modules that detects loss of field power and sends a point-level fault.

No Load Detection

Explains how no load detection senses the absence of field wiring or a missing load from output points.

Field-side Output Verification

Informs about logic-side instructions being accurately represented on the power side of a switching device.

Chapter 5: Fast Module Features

Chapter 6: Install ControlLogix I/O Modules

Install the Module

Provides instructions for installing or removing ControlLogix I/O modules while chassis power is applied (RIUP).

Chapter 7: Configure ControlLogix Digital I/O Modules

Chapter 8: Wiring Diagrams

Appendix A: Troubleshoot Your Module

Appendix B: Tag Definitions

Appendix C: Use Ladder Logic To Perform Run Time Services and Reconfiguration

Appendix D: Choose a Correct Power Supply

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