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上传时间: 2013-03-02
详细说明： 本标准描述了可编程控制器通讯标准. 部分标准目录： 6 PC communication services............................................................................................ 15 6.1 PC subsystems and their status ............................................................................ 15 6.2 Application specific functions................................................................................. 22 7 PC communication function blocks ................................................................................. 28 7.1 Overview of the communicat ion function blocks ..................................................... 28 7.2 Semantic of communication FB parameters ........................................................... 29 7.3 Device verification................................................................................................. 34 7.4 Polled data acquisition .......................................................................................... 38 7.5 Programmed data acquisition ................................................................................ 41 7.6 Parametric control ................................................................................................. 51 7.7 Interlocked control ................................................................................................ 54 7.8 Programmed alarm report ..................................................................................... 61 7.9 Connection management....................................................................................... 69 7.10 Example for the use of communication function blocks .......................................... 73 8 Compliance and implementer specific features and parameters ...................................... 76 8.1 Compliance........................................................................................................... 76 8.2 Implementation specific features and parameters .................................................. 77 ...展开收缩
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