{"id":244270,"date":"2024-10-19T16:02:43","date_gmt":"2024-10-19T16:02:43","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-61158-3-122014\/"},"modified":"2024-10-25T11:01:38","modified_gmt":"2024-10-25T11:01:38","slug":"bs-en-61158-3-122014","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-61158-3-122014\/","title":{"rendered":"BS EN 61158-3-12:2014"},"content":{"rendered":"

1.1 General<\/b><\/p>\n

This part of IEC 61158 provides common elements for basic time-critical messaging communications between devices in an automation environment. The term \u201ctime-critical\u201d is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life.<\/p>\n

This standard defines in an abstract way the externally visible service provided by the Type 12 fieldbus data-link layer in terms of<\/p>\n

    \n
  1. \n

    the primitive actions and events of the service;<\/p>\n<\/li>\n

  2. \n

    the parameters associated with each primitive action and event, and the form which they take;<\/p>\n<\/li>\n

  3. \n

    the interrelationship between these actions and events, and their valid sequences.<\/p>\n<\/li>\n<\/ol>\n

    The purpose of this standard is to define the services provided to<\/p>\n

      \n
    • \n

      the Type 12 fieldbus application layer at the boundary between the application and data-link layers of the fieldbus reference model;<\/p>\n<\/li>\n

    • \n

      systems management at the boundary between the data-link layer and systems management of the fieldbus reference model.<\/p>\n<\/li>\n<\/ul>\n

      1.2 Specifications<\/b><\/p>\n

      The principal objective of this standard is to specify the characteristics of conceptual data-link layer services suitable for time-critical communications, and thus supplement the OSI Basic Reference Model in guiding the development of data-link protocols for time-critical communications. A secondary objective is to provide migration paths from previously-existing industrial communications protocols.<\/p>\n

      This specification may be used as the basis for formal DL-Programming-Interfaces. Nevertheless, it is not a formal programming interface, and any such interface will need to address implementation issues not covered by this specification, including<\/p>\n

        \n
      1. \n

        the sizes and octet ordering of various multi-octet service parameters, and<\/p>\n<\/li>\n

      2. \n

        the correlation of paired request and confirm, or indication and response, primitives.<\/p>\n<\/li>\n<\/ol>\n

        1.3 Conformance<\/b><\/p>\n

        This standard does not specify individual implementations or products, nor does it constrain the implementations of data-link entities within industrial automation systems.<\/p>\n

        There is no conformance of equipment to this data-link layer service definition standard. Instead, conformance is achieved through implementation of the corresponding data-link protocol that fulfils the Type 12 data-link layer services defined in this standard.<\/p>\n

        PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
        PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
        4<\/td>\nForeword
        Endorsement notice <\/td>\n<\/tr>\n
        5<\/td>\nAnnex ZA (normative) Normative references to international publications with their corresponding European publications <\/td>\n<\/tr>\n
        6<\/td>\nEnglish
        CONTENTS <\/td>\n<\/tr>\n
        8<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
        9<\/td>\n1 Scope
        1.1 General
        1.2 Specifications
        1.3 Conformance <\/td>\n<\/tr>\n
        10<\/td>\n2 Normative references
        3 Terms, definitions, symbols, abbreviations and conventions
        3.1 Reference model terms and definitions <\/td>\n<\/tr>\n
        11<\/td>\n3.2 Service convention terms and definitions <\/td>\n<\/tr>\n
        12<\/td>\n3.3 Data-link service terms and definitions <\/td>\n<\/tr>\n
        15<\/td>\n3.4 Symbols and abbreviations <\/td>\n<\/tr>\n
        16<\/td>\n3.5 Common conventions <\/td>\n<\/tr>\n
        17<\/td>\n4 Data-link layer services and concepts
        4.1 Operating principle <\/td>\n<\/tr>\n
        18<\/td>\n4.2 Topology
        4.3 Data-link layer overview <\/td>\n<\/tr>\n
        19<\/td>\n4.4 Error detection overview
        4.5 Parameter and process data handling introduction
        Figures
        Figure 1 \u2013 Mapping of logical data in an Ethernet frame consisting of a single Type 12 DLPDU <\/td>\n<\/tr>\n
        20<\/td>\n4.6 Node reference model
        Figure 2 \u2013 Type\u00a012 data-link reference model <\/td>\n<\/tr>\n
        21<\/td>\n4.7 Operation overview
        Figure 3 \u2013 Type\u00a012 segments in open mode
        Figure 4 \u2013 Type\u00a012 segment in direct mode <\/td>\n<\/tr>\n
        22<\/td>\n4.8 Addressing
        Figure 5 \u2013 Addressing mode overview <\/td>\n<\/tr>\n
        24<\/td>\n4.9 Slave classification
        Figure 6 \u2013 Fieldbus memory management unit overview <\/td>\n<\/tr>\n
        25<\/td>\n4.10 Structure of the communication layer in the slave
        Figure 7 \u2013 Layering of communication <\/td>\n<\/tr>\n
        26<\/td>\n5 Communication services
        5.1 Overview
        5.2 Read services
        Figure 8 \u2013 Flow of Type\u00a012 service primitives <\/td>\n<\/tr>\n
        27<\/td>\nTables
        Table 1 \u2013 Auto-increment physical read (APRD)
        Table 2 \u2013 Configured-address physical read (FPRD) <\/td>\n<\/tr>\n
        28<\/td>\nTable 3 \u2013 Broadcast read (BRD) <\/td>\n<\/tr>\n
        29<\/td>\n5.3 Write services
        Table 4 \u2013 Logical read (LRD)
        Table 5 \u2013 Auto-increment physical write (APWR) <\/td>\n<\/tr>\n
        30<\/td>\nTable 6 \u2013 Configured-address physical write (FPWR)
        Table 7 \u2013 Broadcast write (BWR) <\/td>\n<\/tr>\n
        31<\/td>\n5.4 Combined read\/write services
        Table 8 \u2013 Logical write (LWR) <\/td>\n<\/tr>\n
        32<\/td>\nTable 9 \u2013 Auto-increment physical read\/write (APRW)
        Table 10 \u2013 Configured-address physical read\/write (FPRW) <\/td>\n<\/tr>\n
        33<\/td>\nTable 11 \u2013 Broadcast read\/write (BRW)
        Table 12 \u2013 Logical read\/write (LRW) <\/td>\n<\/tr>\n
        34<\/td>\nTable 13 \u2013 Auto-increment physical read \/ multiple write (ARMW)
        Table\u00a014 \u2013 Configured-address physical read \/ multiple write (FRMW) <\/td>\n<\/tr>\n
        35<\/td>\n5.5 Network services
        Table 15 \u2013 Provide network variable (PNV) <\/td>\n<\/tr>\n
        36<\/td>\n5.6 Mailbox <\/td>\n<\/tr>\n
        37<\/td>\nFigure 9 \u2013 Successful mailbox write sequence
        Figure 10 \u2013 Successful mailbox read sequence <\/td>\n<\/tr>\n
        38<\/td>\nTable 16 \u2013 Mailbox write <\/td>\n<\/tr>\n
        39<\/td>\nTable 17 \u2013 Mailbox read update <\/td>\n<\/tr>\n
        40<\/td>\n6 Local interactions
        6.1 Read local
        Table 18 \u2013 Mailbox read <\/td>\n<\/tr>\n
        41<\/td>\n6.2 Write local
        Table 19 \u2013 Read local
        Table 20 \u2013 Write local <\/td>\n<\/tr>\n
        42<\/td>\n6.3 Event local
        Table 21 \u2013 Event local <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

        Industrial communication networks. Fieldbus specifications – Data-link layer service definition. Type 12 elements<\/b><\/p>\n\n\n\n\n
        Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
        BSI<\/b><\/a><\/td>\n2014<\/td>\n46<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":244277,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-244270","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/244270","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/244277"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=244270"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=244270"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=244270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}