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Provides a reference section covering syntax and functions of FBD language elements, plus guidance on required basic knowledge and software release scope. Includes safety and legal notices, defines warning grades, and specifies proper use of Siemens products and trademark/liability information, supporting consistent and safe application in automation programming environments.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/simatic-function-block-diagram-fbd-for-s7-300-and-s7-400-programming-reference-manual-bit-logic-instructions-1/657472/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/simatic-function-block-diagram-fbd-for-s7-300-and-s7-400-programming-reference-manual-bit-logic-instructions-1/657472.png","ImageObject",300,407,{"name":92,"@type":93},"Supernature","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-10-26",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the purpose of this FBD programming reference manual?","Question",{"text":112,"@type":113},"It serves as a guide to creating user programs in the Function Block Diagram (FBD) programming language and provides a reference section describing syntax and functions of FBD language elements.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Who is the manual intended for?",{"text":117,"@type":113},"It is intended for S7 programmers, operators, and maintenance/service personnel, requiring general knowledge of automation technology.",{"name":119,"@type":110,"acceptedAnswer":120},"What software scope and standards does the manual cover?",{"text":121,"@type":113},"It is valid for release 5.5 of the STEP 7 programming software package and states that FBD corresponds to the IEC 1131-3 Function Block Diagram language.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},657472,1793029685,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":29,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},962093270004,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","SIMATIC  \nFunction Block Diagram (FBD) for S7-300 and S7-400 Programming  \nReference Manual  \nThis manual is part of the documentation package with the order number:  \n6ES7810-4CA10-8BW1  \n05/2010  \nA5E02790131-01  \nBit Logic Instructions  \n1  \n\n| Comparison Instructions | \u003Cbr>\u003Cbr>2 |\n| --- | --- |\n| Conversion Instructions | \u003Cbr>\u003Cbr>3 |\n| Counter Instructions | \u003Cbr>\u003Cbr>4 |\n| Data Block Instructions | \u003Cbr>\u003Cbr>5 |\n| Jump Instructions | \u003Cbr>\u003Cbr>6 |\n| Integer Math Instructions | \u003Cbr>\u003Cbr>7 |\n| Floating-Point Math\u003Cbr>Instructions | \u003Cbr>\u003Cbr>8 |\n| Move Instructions | \u003Cbr>\u003Cbr>9 |\n| Program Control Instructions | \u003Cbr>\u003Cbr>10 |\n| Shift and Rotate Instructions | \u003Cbr>\u003Cbr>11 |\n| Status Bit Instructions | \u003Cbr>\u003Cbr>12 |\n| Timer Instructions | \u003Cbr>\u003Cbr>13 |\n| Word Logic Instructions | \u003Cbr>\u003Cbr>14 |\n| Overview of All FBD\u003Cbr>Instructions | \u003Cbr>\u003Cbr>A |\n| Programming Examples | \u003Cbr>\u003Cbr>B |\n| Working with Function Block Diagram | \u003Cbr>\u003Cbr>C |\n\nLegal information  \nWarning notice system  \nThis manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger.  \n\n| \u003Cbr> DANGER |\n| --- |\n| indicates that death or severe personal injury will result if proper precautions are not taken. |\n\n\n|  WARNING |\n| --- |\n| indicates that death or severe personal injury may result if proper precautions are not taken. |\n\n\n|  CAUTION |\n| --- |\n| with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken. |\n\n\n| CAUTION |\n| --- |\n| without a safety alert symbol, indicates that property damage can result if proper precautions are not taken. |\n\n\n| NOTICE |\n| --- |\n| indicates that an unintended result or situation can occur if the corresponding information is not taken into account. |\n\nIf more than one degree of danger is present , the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage.  \nQualified Personnel  \nThe product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation for the specific task, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems.  \nProper use of Siemens products  \nNote the following:  \n\n|  WARNING |\n| --- |\n| Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation , assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be adhered to. The information in the relevant documentation must be observed. |\n\nTrademarks  \nAll names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.  \nDisclaimer of Liability  \nWe have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.  \nSiemens AG Industry Sector Postfach 48 48 90026 NÜRNBERG GERMANY  \nA5E02","cbCaiv5EJgwBA4ef","https://ap.wps.com/l/cbCaiv5EJgwBA4ef","pdf",1136851,208,"English","# Legal information\n## Warning notice system\n## Qualified Personnel\n## Proper use of Siemens products\n## Trademarks\n## Disclaimer of Liability\n# Preface\n## Purpose\n## Basic Knowledge Required\n## Scope of the Manual\n## Compliance with Standards\n# Reference sections and navigation\n## Bit Logic Instructions\n## Comparison Instructions\n## Conversion Instructions\n## Counter Instructions\n## Data Block Instructions\n## Jump Instructions\n## Integer Math Instructions\n## Floating-Point Math Instructions\n## Move Instructions\n## Program Control Instructions\n## Shift and Rotate Instructions\n## Status Bit Instructions\n## Timer Instructions\n## Word Logic Instructions\n## Overview of All FBD Instructions\n## Programming Examples\n## Working with Function Block Diagram","[{\"question\":\"What is the purpose of this FBD programming reference manual?\",\"answer\":\"It serves as a guide to creating user programs in the Function Block Diagram (FBD) programming language and provides a reference section describing syntax and functions of FBD language elements.\"},{\"question\":\"Who is the manual intended for?\",\"answer\":\"It is intended for S7 programmers, operators, and maintenance/service personnel, requiring general knowledge of automation technology.\"},{\"question\":\"What software scope and standards does the manual cover?\",\"answer\":\"It is valid for release 5.5 of the STEP 7 programming software package and states that FBD corresponds to the IEC 1131-3 Function Block Diagram language.\"}]","SIMATIC Function Block Diagram (FBD) for S7-300 and S7-400 Programming - Reference Manual - Bit Logic Instructions 1 | PDF",1792980406,524]