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GB/T 26796.4-2011: EPS Specification for use in industrial measurement and control system -- Part 4: Function block technical specification
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EPS Specification for use in industrial measurement and control system -- Part 4: Function block technical specification
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GB/T 26796.4-2011
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Basic data | Standard ID | GB/T 26796.4-2011 (GB/T26796.4-2011) | | Description (Translated English) | EPS Specification for use in industrial measurement and control system -- Part 4: Function block technical specification | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N10 | | Classification of International Standard | 25.040 | | Word Count Estimation | 78,712 | | Date of Issue | 2011-07-29 | | Date of Implementation | 2011-12-01 | | Quoted Standard | GB/T 5271.10; GB/T 5271.11; GB/T 5271.1; GB/T 5271.12; GB/T 5271.13; GB/T 5271.14; GB/T 5271.15; GB/T 5271.16; GB/T 5271.17; GB/T 5271.18; GB/T 5271.19; GB/T 5271.20; GB/T 5271.2; GB/T 5271.22; GB/T 5271.23; GB/T 5271.24; GB/T 5271.25; GB/T 5271.26; GB/T 5271.27; GB/T 5271.28; GB/T 5271.29; GB/T 5271.31; GB/T 5271.3; GB/T 5271.32; GB/T 5271.34; GB/T 5271.4; GB/T 5271.5; GB/T 5271.6; GB/T 5271.7; GB/T 5271.8; GB/T 5271.9; GB/T 9387.1; GB/T 20171-2006; GB/T 21099.1; HG/T 20505-2000; IEC 61158-5 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 12 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the EPA (Ethernet for Plant Automation) user-level function block specification. This section applies to EPA standards -based products (measuring instruments, control equipment, etc.) of the function block. | GB/T 26796.4-2011: EPS Specification for use in industrial measurement and control system -- Part 4: Function block technical specification
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EPS Specification for use in industrial measurement and control system.Part 4. Function block technical specification
ICS 25.040
N10
National Standards of People's Republic of China
EPA specifications for industrial measurement and control systems
Part 4. technical specifications for functional blocks
Part 4. Functionblocktechnicalspecification
2011-07-29 released
2011-12-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Directory
Preface Ⅴ
Introduction Ⅵ
1 Scope 1
2 normative reference document 1
3 Terms and definitions 1
4 symbols and abbreviations 4
5 device model 4
6 function block summary 5
6.1 Structure of function blocks 5
6.2 Function Block Application Model 6
6.3 Category of function blocks 7
6.4 Organization of function blocks 7
6.5 Instantiation of Function Blocks 8
6.6 Scheduling of function blocks 9
Data structure 9
7.1 Overview 9
7.2 Function Block header Information Data structure EPA_BLOCK 9
7.3 Analog data structure FB_ANALOG 10
7.4 Digital data structure FB_DISCRETE 10
7.5 Range Data Structure FB_SCALE 10
Basic function block definition 10
8.1 Overview 10
8.2 Analog input function block (AI) 11
8.3 Multi-channel analog input function block (MAI) 13
8.4 Digital input function block (DI) 14
8.5 Multi-channel digital input function block (MDI) 15
8.6 Analog Output Function Block (AO) 15
8.7 Multi-channel analog output function block (MAO) 17
8.8 Digital Output Function Block (DO) 17
Multi - channel digital output function block (MDO) 19
8.10 PID operation function block (PID) 19
8.11 Addition function block (ADD) 22
8.12 Subtract function block (SUB) 22
8.13 Multiplication function block (MUL) 23
8.14 Divide function block (DIV) 24
8.15 Average Function Block (AVG) 24
8.16 High Selection Function Block (HS) 25
8.17 Low Selection Function Block (LS)
8.18 Multiple Select Function Block (SEL) 27
8.19 Split Function Block (SPL)
8.20 Seeking function block (AND) 29
8.21 Seeking or function block (OR) 30
8.22 Anti-function block (NOT) 31
8.23 seeking different or functional blocks (XOR) 31
Basic technology block definition
9.1 Technical block overview 32
9.2 Temperature Technical Blocks 32
9.3 Pressure Technology Blocks 34
9.4 Level Technology Block
9.5 Traffic Technology Blocks 35
9.6 Actuator technology block 36
Appendix A (Normative Appendix) Unit Code Definitions 38
Appendix B (Normative Appendix) Function Block Type Index 48
Appendix C (Normative Appendix) Device Description File Format Specification 49
C.1 Overview 49
C.2 Device description file structure definition 49
C.3 Function block description tag \u003cBLOCK\u003e Structure Description 50
C.4 Parameter description mark \u003cVARIABLE\u003e Structure Description 51
Appendix D (Normative Appendix) Device DeviceID Setting Rule 55
D.1 Overview 55
D.2 Field division of DeviceID
DDS DeviceID Fill in Method 55
Appendix E (Normative Appendix) Function Block Application Simple Data Interface 58
E.1 Overview 58
E.2 Message Data Encoding Format
E.3 Extraction and Transfer of Multiple Data
Appendix F (informative) Device description file Example 61
Figure 1 device model shows 5
Figure 2 Overview of functional blocks 6
Figure 3 can be distributed between the device function block 7
Figure 4 Application System Build Example 11
Figure D.1 Field division of DeviceID
Figure E.1 EPA Information Distribution Message 58
Figure E.2 Encoding of analog data in messages
Figure E.3 Encoding of digital data in a message
Figure E.4 Encoding of analog data strings in messages 59
Figure E.5 Encoding of digital data strings in messages 59
Figure E.6 Custom parameter string in the message 59
Table 1 Function Block header information Data structure 9
Table 2 Analog data structure
Table 3 Digital data structure
Table 4 Analog upper and lower data structure
Table 5 AI function block parameters 12
Table 6 MAI function block parameters 13
Table 7 DI function block parameters 14
Table 8 MDI function block parameters
Table 9 AO function block parameters 15
Table 10 MAO function block parameters 17
Table 11 DO function block parameters
Table 12 MDO function block parameters
Table 13 PID Function Block Parameters
Table 14 ADD function block parameters
Table 15 SUB Function Block Parameters
Table 16 MUL function block parameters 23
Table 17 DIV function block parameter 24
Table 18 AVG function block parameters 24
Table 19 HS Function Block Parameters 25
Table 20 LS Function Block Parameters
Table 21 SEL function block parameters 27
Table 22 SPL Function Block Parameters
Table 23 AND Function Block Parameters 29
Table 24 OR function block parameters 30
Table 25 NOT function block parameters 31
Table 26 XOR Function Block Parameters 31
Table 27 Temperature Technical Block Parameter 33
Table 28 Temperature Sensor Type Index 33
Table 19 Essential Parameters for Pressure Technology Blocks 34
Table 30 Level Technical Blocks Mandatory Parameters 35
Table 31 Flow Technology Block Parameter 35
Table 32 Actuator Technology Block Parameters
Table A.1 Unit Code Table 38
Table B.1 Function Block Type Code 48
Table D.1 Meaning of the letters in the function description field 56
Table E.1 Data Transfer Interface List 60
Foreword
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of the contents of this document may involve patents. The issuer of this document does not assume responsibility for the identification of these patents.
GB/T 26796 "EPA specification for industrial measurement and control systems" is divided into six parts.
Part 1. System structure and communication specification (GB/T 20171-2006) EPA structure for industrial measurement and control systems
And communication specification ");
- Part 2. Protocol conformance test specification;
Part 3. Interoperable Test Specification;
- Part 4. Technical specifications for functional blocks;
- Part 5. Network Security Specification;
Part 6. Specification for real - time communication test.
This part is part 4 of GB/T 26796.
This part is made by the China Machinery Industry Federation.
This part of the National Industrial Process Measurement and Control Standardization Technical Committee.
This part of the drafting unit. Zhejiang University, Zhejiang Central Control Technology Co., Ltd., Shenyang Institute of Automation, Chinese Academy of Sciences, Chongqing Post and Telecommunications
University, Dalian University of Technology, Institute of Mechanical Industry Instrument Technology Institute of Integrated Technology and Economy, Shanghai Institute of Industrial Automation Instrumentation, Shanghai Automation
Instrument Co., Ltd., Southwest University, Tianjin Tianyi Group Instrument Co., Ltd., China quadruple instrumentation Group Co., Ltd., Beijing Hua control
Technology Co., Ltd.
This part of the drafters. Chu Jian, Jin Jianxiang, Feng Dongqin, Xu Aedong, Wang Ping, Zhong Chongquan, Ouyang Jinsong, Mei Ke, Miao Xueqin, Bao Weihua,
Liu Feng, Yang Bin, Tian Yingming, Zhou Yong.
Introduction
The EPA function block is a user-level function module that applies the EPA standard to the control system. The current variety of industrial Ethernet standards competing and
Storage, adapted to a variety of fieldbus and industrial Ethernet function block specification also from its class. Based on the field bus function block application system
Process control brings a whole new control. But in the field bus to bring a series of advantages, but also brought a more complex system
System implementation and system operation. Therefore, EPA needs a way to achieve both fieldbus control, and easy to use, and easy to implement, push
Wide functional block application form.
This part defines the implementation mode of the function block, the application mode of the function block, the parameter structure of the function block, and is based on the easy to implement
The structure is simple and functional principles, based on the EPA standard function block to make the specification.
EPA specifications for industrial measurement and control systems
Part 4. technical specifications for functional blocks
1 Scope
This section specifies the user-level function block specification for EPA (Ethernet forPlantAutomation).
The purpose of this part is to define a basic functional block for a functional block application, and to establish a normative function for interoperability of function blocks
basis.
This section defines the EPA device model, function block model, and function block operation organization based on the EPA protocol. Defined control system
The basic functional blocks in the system and their device specification. Including analog input function block, digital input type function block, analog output type
Function blocks, digital output type function blocks, and basic operation function blocks. Common features of the IEC 61499 series of standards related to this part
The block model describes the basic model of the functional blocks for process control. The IEC 61804 series of standards complements the functional blocks implemented in the device.
Number and function of the specification. The function block types, parameters, and algorithms defined in this section are inheritance and simplification of the IEC 61804 series of standards. Correct
Management blocks, resource blocks, view blocks, trend blocks, alarm blocks, and functions defined by the IEC 61499 and IEC 61804 series of standards
Block mode, event flow, etc., in the EPA user layer is not necessary to achieve, this part is not required.
This part is applicable to the functional block implementation of EPA-based products (measuring instruments, control equipment, etc.).
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 5271 (all parts) Information technology vocabulary
GB/T 9387.1 Information technology - Open systems interconnection - Basic reference model - Part 1. Basic model
GB/T 20171-2006 EPA system structure and communication specification for industrial measurement and control systems
GB/T 21099.1 Functional blocks for process control - Part 1. System overview
Functional Marking and Graphical Symbols for Process Measurement and Control Instrumentation
Industrial communication networks - Fieldbus specification - Part 5. Application layer service definition
3 terms and definitions
The following terms and definitions apply to this document.
3.1
Communication stack
A communication stack is a series of layer protocols that work together in a device that provides communication services to users.
[GB/T 9387.1]
3.2
Function block functionblock
A functional unit consisting of a separate, named copy of the data structure specified by the function block type and associated operations.
[GB/T 9387.1]
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