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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 communication 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

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INTERNATIONAL

STANDARD

IEC

61131-5

First edition

2000-11

Programmable controllers –

Part 5:

Communications

Automates programmables –

Partie 5:

Communications

Reference number

IEC 61131-5:2000(E)

Provided by IHS under license with IEC

Not for Resale

No reproduction or networking permitted without license from IHS

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Publication numbering

As from 1 January 1997 all IEC publications are issued with a designation in the

60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.

Consolidated editions

The IEC is now publishing consolidated versions of its publications. For example,

edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the

base publication incorporating amendment 1 and the base publication incorporating

amendments 1 and 2.

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– 2 – 61131-5



IEC:2000(E)

CONTENTS

Page

FOREWORD .......................................................................................................................... 6

Clause

1 Scope .............................................................................................................................. 8

2 Normative references ....................................................................................................... 8

3 Definitions........................................................................................................................ 9

4 Symbols and abbreviations............................................................................................. 11

5 Models........................................................................................................................... 11

5.1 PC network communication model......................................................................... 11

5.2 PC functional model .............................................................................................. 12

5.3 PC hardware model............................................................................................... 14

5.4 Software model..................................................................................................... 14

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 communication 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

Annex A (normative) Mapping to ISO/IEC 9506-5................................................................ 78

Annex B (normative) PC behavior using ISO/IEC 9506-2..................................................... 98

Figure 1 – Scope of this part of IEC 61131.............................................................................. 8

Figure 2 – PC communication model..................................................................................... 12

Figure 3 – Programmable controller functional model............................................................ 13

Figure 4 – Programmable controller hardware model............................................................. 14

Figure 5 – PC software model............................................................................................... 15

Figure 6 – Programmable controller power supply................................................................. 19

Figure 7 – Type description of status information .................................................................. 21

Figure 8 – Interlocked control timeline................................................................................... 24

Figure 9 – Function REMOTE_VAR ...................................................................................... 31

Provided by IHS under license with IEC

Not for Resale

No reproduction or networking permitted without license from IHS

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61131-5



IEC:2000(E) – 3 –

Figure 10 – Principle of status signalling ............................................................................... 32

Figure 11 – Timing diagram of the ERROR and STATUS outputs .......................................... 32

Figure 12 – STATUS function block ...................................................................................... 34

Figure 13 – USTATUS function block.................................................................................... 35

Figure 14 – Timing diagram of the STATUS function block.................................................... 35

Figure 15 – State diagram of STATUS function block ............................................................ 36

Figure 16 – State diagram of USTATUS function block.......................................................... 37

Figure 17 – READ function block .......................................................................................... 39

Figure 18 – Timing diagram of READ function block.............................................................. 39

Figure 19 – State diagram of READ function block ................................................................ 40

Figure 20 – Programmed data acquisition data flow .............................................................. 41

Figure 21 – USEND function block ........................................................................................ 42

Figure 22 – URCV function block .......................................................................................... 42

Figure 23 – Timing diagram of USEND and URCV function blocks ........................................ 43

Figure 24 – State diagram of USEND function block.............................................................. 43

Figure 25 – State diagram of URCV function block................................................................ 45

Figure 26 – BSEND function block ........................................................................................ 47

Figure 27 – BRCV function block .......................................................................................... 48

Figure 28 – Timing diagram of BSEND and BRCV function blocks......................................... 48

Figure 29 – State diagram of BSEND function block.............................................................. 49

Figure 30 – State diagram of BRCV function block ................................................................ 50

Figure 31 – WRITE function block......................................................................................... 52

Figure 32 – Timing diagram of WRITE function block ............................................................ 53

Figure 33 – State diagram of WRITE function block .............................................................. 53

Figure 34 – SEND function block .......................................................................................... 55

Figure 35 – RCV function block............................................................................................. 56

Figure 36 – Timing diagram of SEND and RCV function blocks ............................................. 57

Figure 37 – State diagram of SEND function block ................................................................ 58

Figure 38 – State diagram of RCV function block .................................................................. 60

Figure 39 – NOTIFY function block ....................................................................................... 62

Figure 40 – ALARM function block ........................................................................................ 63

Figure 41 – Timing diagram of ALARM function block ........................................................... 64

Figure 42 – State diagram of NOTIFY function block............................................................. 65

Figure 43 – State diagram of ALARM function block.............................................................. 67

Figure 44 – CONNECT function block ................................................................................... 69

Figure 45 – Timing diagram of CONNECT function block ...................................................... 70

Figure 46 – State diagram of CONNECT function block......................................................... 71

Figure 47 – Example in function block diagram language ...................................................... 76

Table 1 – Status presenting entities ...................................................................................... 16

Table 2 – PC summary status ............................................................................................... 17

Table 3 – Status of I/O subsystem ........................................................................................ 18

Table 4 – Status of processing unit ....................................................................................... 18

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