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Allen-Bradley 1756-OB16IEFS User Manual

Allen-Bradley 1756-OB16IEFS
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-OB16IEFS Specifications

General IconGeneral
CategoryI/O Systems
Number of Outputs16
Output TypeSourcing
Voltage Category24V DC
Total Current Rating8A
Series1756
Module TypeDigital Output
Product TypeOutput Module
Voltage Range10-30V DC
Isolation Voltage250V
Isolation Voltage Continuous250V
Operating Temperature0 to 60°C
Special FeaturesElectronic Fuse
CertificationsCE, UL, cUL

Summary

Preface

Studio 5000 Environment

Introduces the Studio 5000 Engineering and Design Environment for ControlLogix.

Chapter 2 Digital I/O Operation in the ControlLogix System

Ownership

Details how ControlLogix I/O modules are owned by RSLogix 5000 controllers.

Input Module Operation

Describes how input modules multicast data via Change of State or RPI.

Output Module Operation

Covers how owner-controllers send output data to modules.

Chapter 3 Common Module Features

Software Configurable

Explains how RSLogix 5000 software configures module features and retrieves information.

Electronic Keying

Details the electronic keying feature for preventing communication with mismatched modules.

Module Inhibiting

Explains how to suspend module connections for maintenance without removing them.

Use the System Clock to Timestamp Inputs and Schedule Outputs

Details using Coordinated System Time (CST) for timestamps in standard I/O modules.

Use CIP Sync Time with Fast I/O Modules

Explains using CIP Sync for timestamps and scheduling in fast I/O modules.

Data Transfer on Either Cyclic Time or Change of State

Explains data transfer methods using RPI and Change of State (COS).

Set RPI

Details how to enter a Requested Packet Interval (RPI) value in module properties.

Enable Change of State

Guides on enabling or disabling Change of State (COS) for input transitions.

Configurable Point-level Output States

Explains configuring unique output states for Program or Fault modes.

Electronic Fusing

Explains internal electronic or mechanical fusing for output module protection.

Chapter 4 Diagnostic Module Features

Diagnostic Latch of Information

Explains diagnostic latching to retain fault status even after the condition disappears.

Diagnostic Timestamp

Details how diagnostic I/O modules can timestamp faults or clears for accuracy.

Point-level Fault Reporting

Explains how diagnostic I/O modules set bits to indicate point-by-point faults.

Diagnostic Change of State for Input Modules

Describes how diagnostic input modules send data on event changes like RPI or COS.

Open Wire Detection

Details the feature to verify field wiring connection by detecting open wires.

Field Power Loss Detection

Explains the feature for detecting loss of field power on output modules.

No Load Detection

Covers the feature sensing absence of field wiring or load when output is Off.

Field-side Output Verification

Explains how the module verifies logic-side instructions are represented on the power side.

Pulse Test

Describes the Pulse Test feature for verifying output circuit functionality without changing load state.

Diagnostic Change of State for Output Modules

Explains how diagnostic output modules send new data on event changes.

Chapter 5 Fast Module Features

Response Time

Details screw-to-backplane response times for fast input and output modules.

Pulse Capture

Explains detecting or latching short duration pulses with fast input modules.

Per Point Timestamping and Change of State

Details recording timestamps for input transitions in CIP Sync format.

Software Configurable Filter Times

Explains configuring input filter times to account for contact bounce.

Dedicated Connection for Event Tasks

Covers initiating event tasks using user-defined input patterns with fast modules.

Programmable Fault State Delays

Allows defining duration and final state for outputs in Fault mode due to communication failure.

Pulse Width Modulation

Explains precise onboard control of output pulse trains using PWM.

Cycle Limit and Execute All Cycles

Covers limiting the number of pulse cycles or executing all cycles regardless of logic state.

PWM Configuration

Guides on configuring Pulse Width Modulation (PWM) parameters for output points.

Fault and Status Reporting between Input Modules and Controllers

Explains how fast input modules multicast fault and status data to controllers.

Fault and Status Reporting between Output Modules and Controllers

Explains how fast output modules multicast fault and status data to controllers.

Chapter 6 Install ControlLogix I/O Modules

Install the Module

Describes how to install or remove ControlLogix I/O modules while chassis power is applied (RIUP).

North American Hazardous Location Approval

Provides information for operating equipment in hazardous locations.

European Hazardous Location Approval

Details compliance with EU directives for use in potentially explosive atmospheres.

Key the Removable Terminal Block

Explains how to key the RTB to prevent incorrect wiring connections to the module.

Connect the Wires

Guides on connecting wires to Removable Terminal Blocks (RTBs) or Interface Modules (IFMs).

Install the Removable Terminal Block

Provides steps to install the RTB onto the module to connect wiring.

Remove the Removable Terminal Block

Guides on how to remove the RTB from the module.

Chapter 7 Configure ControlLogix Digital I/O Modules

Create a New Module

Guides on adding a new local or remote I/O module in RSLogix 5000 software.

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

Reset a Fuse, Perform Pulse Test and Reset Latched Diagnostics

Illustrates using ladder logic for fuse reset, pulse tests, and latched diagnostics.

Perform a WHO to Retrieve Module Identification and Status

Shows retrieving module identification and status information via a WHO service.

Appendix D Choose a Correct Power Supply

Appendix E Motor Starters for Digital I/O Modules

Appendix F Major Revision Upgrades

Appendix G 1492 IFMs for Digital I/O Modules

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