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PLC-based Process Control Engineering Guide

228 Pages · 2007 · 7.65 MB · English

  • PLC-based Process Control Engineering Guide

    PLC-based Process Control Engineering Guide


    Cat. No. W468-E1-01 Introduction


    PLC-based process controller is a process control system which has the base of SYSMAC SC/CJ


    series. It can be adopted for both loop control which controls analog signals and sequence control


    which mainly handles contacts.


    By combining a loop controller and process I/O units, loop control functionality can be added onto


    the PLC, maintaining the basic PLC function.When developing a system, operating environment,


    such as initial setting of PLC is required, so that the PLC can operate.


    Then, utilize CX-Process, the tool software of loop controller to build the system. HMI can be se-


    lected from the Touch panel (NS series), special monitoring software CX-Process Monitor Plus,


    and general HMI software, depending on the application.


    This manual describes the procedure to build a PLC-based process control system.The engineer-


    ing method may differ depending on the devices. In this manual, an example system is built on the


    Loop-control CPU Unit (CJ1G-CPU**P) and HMI recommended by Omron is combined.


    1 About this Manual


    This manual describes the procedure to build a PLC-based Process Control system and includes


    the sections below.


    Section1 outlines the features and mechanism of the Loop Controllers


    Section2 describes the procedure to build an example system on the Loop Controller.


    Section3 provides the names and functions of parts, and provides other information required toin-


    stall and operate Loop Controllers.


    Section 4 describes application cases of PLC-based Process Control system.


    The CS-series CS1W-LCB01 and CS1W-LCB05 Loop Control Boards, CS1D-CPU**P Process-


    control CPU Units, and CJ1G-CPU**P Loop-control CPU Units help you build an instrumentation


    system comprising multiple loops. A Loop Control Board is installed as an Inner Board in the CPU


    Unit of a CS-series PLC (Programmable Controller).


    The CS1W-LCB01 and CS1W-LCB05 Loop Control Boards must be installed in CS1-H CPU


    Units.They cannot be used in CS1 CPU Units.


    Please read this manual and the other manuals related to the CS1W-LCB01 and CS1W-LCB05


    Loop Control Boards, CS1D-CPU**P Process-control CPU Units, and CJ1G-CPU**P Loop-control


    CPU Units carefully and be sure you understand the information provided before attempting to in-


    stall and operate the products. The manuals used with the CS1W-LCB01 and CS1W-LCB05 Loop


    Control Boards, CS1D-CPU**P Process-control CPU Units, and CJ1G-CPU**P Loop-control CPU


    Units are listed in the following table. The suffixes have been omitted from the catalog numbers.


    Be sure you are using the most recent version for your area.


    Name Contents Cat. No.(suffixes


    omitted)


    PLC-based Process Control Engineering Describes the procedure to build a PLC-based W468


    Guide (This manual) Process Control system.


    SYSMAC CS/CJ SeriesCS1W-LCB01, Describes the basic running of the Loop Con- W406


    CS1W-LCB05, CS1D-CPU**P, and trol Boards (excluding detailed descriptions of


    CJ1G-CPU**P Operation Manuals the function blocks).


    SYSMAC CS/CJ SeriesCS1W-LCB01, Provides detailed information on the function W407


    CS1W-LCB05,CS1DCPU**P, and CJ1G- blocks.


    CPU**P Function Block Reference Man-


    ual


    CXONE-AL**C-ECX-One FA Integrated Provides an overview of the CX-One FA Inte- W444


    Tool Package Setup Manual grated Tool and installation procedures.


    SYSMAC CS/CJ SeriesCX-Process Describes operation of the CX-Process Tool. W372


    ToolOperation Manual


    Faceplate Auto-Builder for NSOperation Describes operation of the software that gen- W418


    Manual erates NS-series PT projects from a CSV file


    output by the CX-Process Tool.


    When using CS1D Process-control CPU Units, refer to the following manuals for information on


    theCS1D CPU Unit elements.


    Name Contents Cat. No.(suffixes


    omitted)


    SYSMAC CS SeriesCS1D-CPU**H, Describes the setup and operation of W405


    CS1D-DPL01CS1D-PA/PD***CS1D Du- CS1DDuplex systems.


    plex SystemOperation Manual


    2 When using CJ Series Loop-control CPU Units, refer to the following manuals for information on


    the CJ1-H CPU Unit elements.


    Name Contents Cat. No.(suffix-


    es omitted)


    SYSMAC CJ SeriesProgrammable Con- Provides an outlines of and describes the de- W393


    trollers Operation ManualCJ1G/H- sign, installation, maintenance, and otherbasic


    CPU**H, CJ1G-CPU**P,CJ1M- operations for the CJ-series PLCs.


    CPU**,CJ1G-CPU**


    SYSMAC CS/CJ SeriesProgrammable This manual describes programming andother W394


    ControllersProgramming ManualCS1G/ methods to use the functions of theCS/CJ-se-


    H-CPU**-EV1, CS1G/H- ries PLCs.


    CPU**H,CS1DCPU**H, CS1D-


    CPU**S,CJ1G/H-CPU**H, CJ1G-


    CPU**P,CJ1M-CPU**, CJ1G-CPU**


    SYSMAC CS/CJ SeriesProgrammable This manual describes programming andother W340


    ControllersInstructions Reference methods to use the functions of theCS/CJ-se-


    ManualCS1G/H-CPU**-EV1, CS1G/H- ries PLCs.


    CPU**H,CS1DCPU**H, CS1D-


    CPU**S,CJ1G/H-CPU**H, CJ1G-


    CPU**P,CJ1M-CPU**, CJ1G-CPU**


    Failure to read and understand the information provided in this manual may result


    in personal injury or death, damage to the product, or product failure. Please read


    each section in its entirety and be sure you understand the information provided in


    the section and related sections before attempting any of the procedures or oper-


    ations given.


    3 About Loop Controllers


    Loop Control Types, Functional Elements, and Versions


    Loop Controller Types


    There are two types of Loop Controller: Separate Loop Controllers and Loop Controllers Pre-in-


    stalled in CPU Units.


    Loop Controller Type name Product name Model PLC series and Unit type


    Type


    Separate Separate Loop Loop Control Unit CS1W-LC001 CS-series CPU Bus Unit Loop Con-


    troller


    Controller Loop Control CS1W-LCB** CS-series Inner Board Loop Con-


    Board troller


    Pre-installed in CPU Unit with Process-control CS1D-CPU**P A one-Unit Loop Controller consist-


    CPU Unit Pre-installed Loop CPU Unit ing of an Inner Board Pre-installed


    Controller in a CS-series CS1D-H CPU Unit


    Loop-control CPU CJ1G-CPU**P A one-Unit Loop Controller consist-


    Unit ing of an Inner Board pre-installed in


    a CJ-series CJ1-H CPU Unit.


    Loop Controller Function Elements


    (cid:140)Separate Loop Controllers consist of only the Loop Controller functional element (i.e., the Loop


    Controller element).


    (cid:140)CPU Units with Pre-installed Loop Controller consist of a CPU Unit functional element (i.e., the


    CPU Unit element) and the Loop Controller functional element (i.e., the Loop Controller ele-


    ment).


    Versions


    (cid:140)The functional elements (i.e., the CPU Unit element and Loop Controller element) have ver-


    sions.


    Human-Machine Interface Recommended by Omron


    Human-machine interface Recommended Software/ Device


    HMI Software Omron, CX-Process Monitor Plus


    PT Omron, NS Series PT


    Notation in this manual


    This manual uses the following notation.


    (cid:140)"Loop Controller" is used as a generic term to refer to the Loop Controllers in general.


    (cid:140)"LCB**" is used to refer to specific Loop Controller functional elements. For example, the Loop


    Controller function element in a CS1W-LCB05 Loop Controller Board is the LCB05, so


    "LCB05" is used to refer to the Loop Controller functional element.


    EX.) "LCB05 functional elements" is used to refer to Loop Controller functional element of "CS1W-


    LCB05". "LCB03 functional elements" is used to refer to Loop Controller functional element of Loop


    CPU Unit CJ1G-CPU44P, because the Loop Controller elements pre-installed in the CPU is


    LCB03.


    (cid:140)Model numbers are used to refer to specific Loop Controller models.


    4 Notice:


    OMRON products are manufactured for use according to proper procedures by a qualified operator and only


    for the purposes described in this manual.The following conventions are used to indicate and classify precau-


    tions in this manual. Always heed the information provided with them. Failure to heed precautions can result


    in injury to people or damage to property.


    Indicates an imminently hazardous situation which, if not avoided, could result


    in death or serious injury. Additionally, there may be severe property damage.


    Indicates an imminently hazardous situation which, if not avoided, may result


    in minor or moderate injury, or property damage.


    OMRON Product Reference


    All OMRON products are capitalized in this manual. The work "Unit" is also capitalized when it refers to an


    OMRON product, regardless of whether or not it appears in the proper name of the product.


    The abbreviation "Ch" which appears in some displays and on some OMRON products, often means "word"


    and is abbreviated "Wd" in documentation in this sense.


    The abbreviation "PLC" means Programmable Controller. "PC" is used, however, in some Programming De-


    vice displays to mean Programmable Controller.


    Visual Aids


    The following headings appear in the left column of the manual to help you locate different types of informa-


    tion.


    Indicates information of particular interest for efficient and convenient operation of the product.


    1, 2,3···1 indicates lists of one sort or another, such as procedures, checklists, etc.


    OMRON, 2007


    All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted,


    in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior


    written permission of OMRON.


    No patent liability is assumed with respect to the use of the information contained herein. Moreover, because


    OMRON is constantly striving to improve its high-quality products, the information contained in this manual is


    subject to change without notice. Every precaution has been taken in the preparation of this manual. Never-


    theless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for dam-


    ages resulting from the user of the information contained in this publication.


    5 Read and Understand this Manual


    Please read and understand this manual before using the product. Please consult your OMRON


    representative if you have any questions or comments.


    Warranty and Limitations of Liability


    WARRANTRY


    OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for


    a period of one year (or other period if specified) from date of sale by OMRON


    OMRON MAKES NO WARRANTRY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING


    NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE


    PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS


    DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR IN-


    TENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.


    LIMITATIONS OF LIABILITY


    OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMEG-


    ES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PROD-


    UCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTRY, NEGLIGENCE, OR


    STRICT LIABILITY.


    In no event shall the responsibility of OMRON for any act exceed the individual price of the product on


    which liability is asserted.


    IN NO EVENT SHALL OMRON BE RESPOBSIBLE FOR WARRANTRY, REPAIR, OR OTHER CLAIMS


    REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS


    WERE PROPERLY HANDLED , STORED, INSTALLED, AND MAINTENANCED AND NOT SUBJECT


    TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.


    6 Application Considerations


    SUITABILITY FOR USE


    OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to


    the combination of products in the customer's application or use of the products.


    At the customer's request, OMRON will provide applicable third party certification documents identifying


    ratings and limitations of use that apply to the products. This information by itself is not sufficient for a


    complete determination of the suitability of the products in combination with the end product, machine,


    system ot other application or use.


    The following are some examples of applications for which particular attention must be given. This is not


    intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the


    uses listed may be suitable for the products:


    •Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions


    or uses not described in this manual.


    •Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical


    equipment, amusement machines, vehicles, safety equipment, and installations subject to separate in-


    dustry or government regulations.


    •Systems, machines, and equipment that could present a risk to life or property.


    Please know and observe all prohibitions of use applicable to the products.


    NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR


    PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO AD-


    DRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND IN-


    STALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.


    PROGRAMMABLE PRODUCTS


    OMRON shall not be responsible for the user's programming of a programmable products, or any conse-


    quence thereof.


    7 Disclaimers


    CHANGE IN SPECIFICATIONS


    Products specifications and accessories may be changed at any time based on improvements and other


    reasons.


    It is our practice to change model numbers when published ratings or features are changed, or when


    significant construction changes are made. However, some specifications of the products may be


    changed without any notice. When in doubt, special model numbers may be assigned to fix or establish


    key specifications for your application on your request. Please consult with your OMRON representative


    at any time to confirm actual specifications of purchased products.


    DIMENSIONS AND WEIGHTS


    Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when torelances are


    shown.


    PERFORMANCE DATA


    Performance data given in this manual is provided as a guide for the user in determining suitability and does not con-


    stitute a warrantry. It may represent the result of OMRON's test conditions, and the users must correlate it to actual


    application requirements. Actual performance is subject to the OMRON Warrantry and Limitations of Liability.


    ERRORS AND OMISSIONS


    The information in this manual has been carefully checked and is believed to be accurate; however, no responsibility


    is assumed for clerical, typographical, or proofeading errors, or omissions.


    8


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