{"id":245414,"date":"2024-10-19T16:08:27","date_gmt":"2024-10-19T16:08:27","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-61158-3-22014a12019\/"},"modified":"2024-10-25T11:08:33","modified_gmt":"2024-10-25T11:08:33","slug":"bs-en-61158-3-22014a12019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-61158-3-22014a12019\/","title":{"rendered":"BS EN 61158-3-2:2014+A1:2019"},"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 2 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; and<\/p>\n<\/li>\n

  3. \n

    the interrelationship between these actions and events, and their valid sequences. The purpose of this standard is to define the services provided to:<\/p>\n<\/li>\n<\/ol>\n

      \n
    • \n

      the Type 2 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

      Type 2 DL-service provides both a connected and a connectionless subset of those services specified in ISO\/IEC 8886.<\/p>\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;<\/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 fulfills the Type 1 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\n\n\n\n\n\n\n
        PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
        2<\/td>\nundefined <\/td>\n<\/tr>\n
        4<\/td>\nBlank Page <\/td>\n<\/tr>\n
        6<\/td>\nBlank Page <\/td>\n<\/tr>\n
        7<\/td>\nCONTENTS <\/td>\n<\/tr>\n
        11<\/td>\nINTRODUCTION
        INTRODUCTION to the Amendment <\/td>\n<\/tr>\n
        12<\/td>\n1 Scope
        1.1 General
        1.2 Specifications
        1.3 Conformance <\/td>\n<\/tr>\n
        13<\/td>\n2 Normative references
        3 Terms, definitions, symbols, abbreviations and conventions
        3.1 Reference model terms and definitions <\/td>\n<\/tr>\n
        15<\/td>\n3.2 Service convention terms and definitions <\/td>\n<\/tr>\n
        16<\/td>\n3.3 Common data-link service terms and definitions
        Figures
        Figure 1 \u2013 Relationships of DLSAPs, DLSAP-addresses and group DLaddresses <\/td>\n<\/tr>\n
        17<\/td>\n3.4 Additional Type 2 data-link specific definitions <\/td>\n<\/tr>\n
        19<\/td>\n3.5 Common symbols and abbreviations <\/td>\n<\/tr>\n
        20<\/td>\n3.6 Additional Type 2 symbols and abbreviations
        3.7 Common conventions <\/td>\n<\/tr>\n
        21<\/td>\n4 Connection-mode and connectionless-mode data-link service
        4.1 Overview <\/td>\n<\/tr>\n
        22<\/td>\nFigure 2 \u2013 NUT structure <\/td>\n<\/tr>\n
        23<\/td>\nFigure 3 \u2013 Medium access during scheduled time <\/td>\n<\/tr>\n
        24<\/td>\nFigure 4 \u2013 Medium access during unscheduled time <\/td>\n<\/tr>\n
        25<\/td>\n4.2 Facilities of the data-link service
        Figure 5 \u2013 Queue model for the peer and multipoint DLS, DLSAPs and their DLCEPs <\/td>\n<\/tr>\n
        26<\/td>\n4.3 Model of the data-link service <\/td>\n<\/tr>\n
        27<\/td>\nFigure 6 \u2013 Queue model of a multipoint DLS between asending DLS-user and one or more receiving DLS-users <\/td>\n<\/tr>\n
        28<\/td>\n4.4 Sequence of primitives <\/td>\n<\/tr>\n
        29<\/td>\nFigure 7 \u2013 DLS primitive time-sequence diagram
        Tables
        Table 1 \u2013 Summary of connection-mode and connectionless-modeprimitives and parameters <\/td>\n<\/tr>\n
        30<\/td>\n4.5 Connection-mode data transfer
        Figure 8 \u2013 State transition diagram for sequences of DLS primitives at one DLSAP <\/td>\n<\/tr>\n
        31<\/td>\nTable 2 \u2013 DLconnection-mode transfer primitives and parameters <\/td>\n<\/tr>\n
        32<\/td>\n4.6 Connectionless-mode data transfer
        Figure 9 \u2013 Sequence of primitives for a successful connection-mode transfer
        Figure 10 \u2013 Sequence of primitives for an unsuccessful connection-mode transfer <\/td>\n<\/tr>\n
        33<\/td>\nTable 3 \u2013 DLconnectionless-mode transfer primitives and parameters <\/td>\n<\/tr>\n
        34<\/td>\nTable 4 \u2013 Fixed tag services available to the DLS-user <\/td>\n<\/tr>\n
        35<\/td>\n4.7 Queue maintenance
        Figure 11 \u2013 Sequence of primitives for a successful connectionless-mode transfer
        Figure 12 \u2013 Sequence of primitives for an unsuccessful connectionless-mode transfer <\/td>\n<\/tr>\n
        36<\/td>\nTable 5 \u2013 DLqueue maintenance primitives and parameters <\/td>\n<\/tr>\n
        37<\/td>\n4.8 Tag filter
        Figure 13 \u2013 Sequence of primitives for a queue maintenance request
        Table 6 \u2013 DLconnectionless-mode tag filter primitives and parameters <\/td>\n<\/tr>\n
        38<\/td>\n5 DLmanagement services
        5.1 Sequence of primitives
        Figure 14 \u2013 Sequence of primitives for a tag filter request <\/td>\n<\/tr>\n
        39<\/td>\n5.2 Link synchronization
        Table 7 \u2013 Summary of DLmanagement primitives and parameters <\/td>\n<\/tr>\n
        40<\/td>\n5.3 Synchronized parameter change
        Figure 15 \u2013 Sequence of primitives for a local link synchronization
        Table 8 \u2013 Link synchronization primitives and parameters <\/td>\n<\/tr>\n
        41<\/td>\nTable 9 \u2013 Synchronized parameter change primitives and parameters
        Table 10 \u2013 DLMS-configuration-data <\/td>\n<\/tr>\n
        42<\/td>\n5.4 Event reports
        Figure 16 \u2013 Sequence of primitives for a DLM-get\/set parameters request
        Figure 17 \u2013 Sequence of primitives for a DLM-tMinus change request <\/td>\n<\/tr>\n
        43<\/td>\nTable 11 \u2013 Event report primitives and parameters
        Table 12 \u2013 DLMS events being reported <\/td>\n<\/tr>\n
        44<\/td>\n5.5 Bad FCS
        5.6 Current moderator
        Figure 18 \u2013 Sequence of primitives for a DLM-event indication
        Figure 19 \u2013 Sequence of primitives for a DLM-bad-FCS indication
        Table 13 \u2013 Bad FCS primitives and parameters <\/td>\n<\/tr>\n
        45<\/td>\n5.7 Enable moderator
        Figure 20 \u2013 Sequence of primitives for a DLM-current-moderator indication
        Table 14 \u2013 Current moderator primitives and parameters
        Table 15 \u2013 Enable moderator primitives and parameters <\/td>\n<\/tr>\n
        46<\/td>\n5.8 Power-up and online
        Figure 21 \u2013 Sequence of primitives for a DLM-enable-moderator request
        Table 16 \u2013 Power-up and online primitives and parameters <\/td>\n<\/tr>\n
        47<\/td>\n5.9 Listen only
        Figure 22 \u2013 Sequence of primitives for a DLMpower-up indication
        Figure 23 \u2013 Sequence of primitives for a DLMonline request
        Figure 24 \u2013 Sequence of primitives for a DLM-listen-only request
        Table 17 \u2013 Listen-only primitives and parameters <\/td>\n<\/tr>\n
        48<\/td>\n5.10 Time distribution
        Table 18 \u2013 DLMS time and time quality parameters <\/td>\n<\/tr>\n
        49<\/td>\nTable 19 \u2013 Time distribution source quality <\/td>\n<\/tr>\n
        50<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

        Industrial communication networks. Fieldbus specifications – Data-link layer service definition. Type 2 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>\n2019<\/td>\n52<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":245421,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-245414","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\/245414","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\/245421"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=245414"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=245414"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=245414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}