Filosofia

MicroLogix™ 1500 Programmable Controllers
Bulletin 1764

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 safetyrequirements, 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 productssuch 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 publication, notes may be used to make you aware of safety considerations. The following annotations and their accompanying statements help you to identify a potential hazard, avoid apotential hazard, and recognize the consequences of a potential hazard: 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.

!
ATTENTION

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IMPORTANT

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

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

MicroLogix, Compact I/O, and RSLogix are trademarks of Rockwell Automation.

Summary of Changes
The information below summarizes the changes to this manual since the last printing. To help you find new and updated information in this release of the manual,we have included change bars as shown to the right of this paragraph. The table below lists the sections that document new features and additional or updated information on existing features.
For this information: Series C support for up to 16 expansion I/O modules List of controller series, OS FRN numbers, and RSLogix versions Updated list of recommended surge suppressors Ethernet ConnectivityTypical CPU hold-up time Updated system loading and heat dissipation worksheets System loading graphs for 1769 power supplies, including 1769-PA4 and 1769-PB4 See Chapter 1 Page 1-5 Page 3-6 Page 4-23 Page A-1 Appendix F pages F-5 through F-7

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Publication 1764-UM001B-EN-P - March 2002

Summary of Changes

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Publication 1764-UM001B-EN-P - March 2002

Table of Contents
PrefaceWho Should Use this Manual. . . . . . . . . . . . . . . . Purpose of this Manual . . . . . . . . . . . . . . . . . . . . Related Documentation . . . . . . . . . . . . . . . . . . . . Common Techniques Used in this Manual . . . . . . Rockwell Automation Support . . . . . . . . . . . . . . . Local Product Support . . . . . . . . . . . . . . . . . . Technical Product Assistance . . . . . . . . . . .. . Your Questions or Comments on this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1 P-1 P-1 P-3 P-3 P-3 P-3 P-4

Chapter 1 Hardware Overview
Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . MicroLogix 1500 Component Descriptions . . . . . . . . . . Base Units . . . . . . . . . . . . . . . ....