Programacion De Plc

Logix5000 Controllers
1756 ControlLogix, 1769 CompactLogix, 1789 SoftLogix, 1794 FlexLogix, PowerFlex 700S with DriveLogix

System Reference

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Important User Information
Because of the variety of uses for the products described in this publication, those responsible for the application and use of these products must satisfy themselves that all necessary steps have been taken to assurethat each application and use meets all performance and safety requirements, including any applicable laws, regulations, codes and standards. In no event will Allen-Bradley be responsible or liable for indirect or consequential damage resulting from the use or application of these products. Any illustrations, charts, sample programs, and layout examples shown in this publication are intendedsolely 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. Reproduction of the contents of this copyrighted publication, in whole or part, without written permission ofRockwell Automation, is prohibited.

Summary of Changes
This version of the Logix5000 Controllers System Reference Manual corresponds to version 15 of the controllers. Revision bars (shown in the left margin of this page) indicate changed information. Changes made to this manual include: • • • • Addition of 1769-L32C and 1769-L35CR CompactLogix controllers for ControlNet Addition ofDriveLogix5730 controller for PowerFlex 700S Addition of PSC, PCMD, POVR, PFL, PCLF, PXRQ, PRNP, PPD, PATT and PDET phase manager instructions The 1794-L33, 1769-L20, and 1769-L30 controllers have been removed

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Notes:

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Table of Contents
Chapter 1 Logix Controllers
Logix Family of Controllers. . . . . . . .. . . . . . . . ControlLogix Controllers (1756-L6x, L55Mxx). . . CompactLogix Controllers (1769-Lxx) . . . . . . . . FlexLogix Controllers (1794-L34). . . . . . . . . . . . SoftLogix5800 Controllers (1789-L10, -L30, -L60) PowerFlex 700S with DriveLogix5720 . . . . . . . . PowerFlex 700S with DriveLogix5730 . . . . . . . . Controller Comparison . . . . . . . . . . . . . . . . . . . Select theOperating Mode of the Controller . . . Non-Volatile Memory . . . . . . . . . . . . . . . . . . . . Create a Project . . . . . . . . . . . . . . . . . . . . . . . . Controller Organizer. . . . . . . . . . . . . . . . . . . . . Controller Tasks. . . . . . . . . . . . . . . . . . . . . . . . Controller Tags . . . . . . . . . . . . . . . . . . . . . . . . Aliases. . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . Choose a Programming Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . 1-2 . 1-4 1-10 1-12 1-14 1-16 1-18 1-21 1-22 1-24 1-25 1-26 1-301-33 1-34

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Chapter 2 Sequential Function Charts
Editing an SFC . . . . . . . . . . . . . . . . . . Action Qualifiers . . . . . . . . . . . . . . . . How Do You Want to Use the Action? Configure the Execution of an SFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4 2-10 2-12 2-13

Chapter 3 Structured Text
Structured Text Syntax . . . . . . . . . Assignments. . . . . . . . . . . . . . . . . Expressions . . . . . . . . . . . . . . . . . Determine the order of execution . Instructions . . . . . . . . . . . . . . . . . Constructs . . . . . . . . . . . . . . . . . . Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....