Beckhoff Building Automation

Transcription

1 Beckhoff Building Automation Beckhoff Industrial PC Beckhoff Lightbus Beckhoff TwinCAT Beckhoff Embedded PC Beckhoff Bus Terminal Beckhoff Fieldbus Box Beckhoff PC Fieldbus Cards, Switches Beckhoff EtherCAT Beckhoff Drive Technology Beckhoff TwinCAT 1

2 PLCopen Mission Want s to be the leading association resolving topics related to control programming to support the use of international standards in this field.

3 IEC The best thing that happened to industrial control. So why not for Building Automation also?!

4 The IEC Standard Common Elements Programming Languages

5 The IEC Programming Languages Instruction List LD ANDN ST A B C Function Block Diagram A B AN D C Structured Text C:= A AND NOT B Ladder Diagram A B C - -- / ( ) Sequential Function Charts Step 1 N FILL Transition 1 Step 2 S Empty Transition 2 Step 3

6 The IEC Standard Common Elements Programming Languages

7 Common Elements include : Variables, Data Types and Declaration Configuration, Resources and Tasks Function, Function Blocks and Programs

8 IEC : Common Elements Variables Symbolic representation via labels Coupled to Program Organization Unit (Function, Function Block or Program) Data types / Own Data types What is this?

9 IEC : Common Elements such as: BOOL Data Types BYTE INTEGER : SINT, INT, DINT, LINT USINT, UINT, UDINT, ULINT REAL, LREAL DATE TIME_OF_DAY DATE_AND_TIME STRING

10 Directly Represented Variables : % Prefix Meaning Default data type I Input location Q Output location M Memory location X Single bit size BOOL None Single bit size BOOL B Byte (8 bits) size BYTE W Word (16 bits) size WORD D Double word (32 bits) size DWORD L Long (quad) word (64 bits) size LWORD Example: Temperature1 AT%IW10: REAL;

11 IEC : Common Elements a.o. COMMON ELEMENTS Data Types & Variables Configuration Resources Tasks

12 IEC Software Model Configuration Resource Resource Variable access path Task Task Task Task FB Function Block Program Program FB FB Program Program FB FB Variable Global and direct variables Execution control path Access path Communication Function

13 IEC : Common Elements a.o. COMMON ELEMENTS Data Types & Variables Configuration, Resources, Tasks Programming Organization Units * Functions * Function Blocks * Programs

14 Functions.. * Standard functions ADD, SQRT, SIN, COS, GT, MIN, MAX, AND, OR, etc. * Your own defined functions: FUNCTION SIMPLE_FUN : REAL VAR_INPUT A, B : REAL; C : REAL := 1.0; END_VAR SIMPLE_FUN := A*B/C; END FUNCTION

15 . & Function Blocks Standard Function Blocks Additional supplied Function Blocks Your own defined Function Blocks All FBs are highly re-usable in same program, different programs or project INPUT OUTPUT IN_OUT EXTERNAL FUNCTION_BLOCK Type Local

16 Function Block example REAL REAL REAL Q 1 0 Temp_1 Temp_Hysth XIN1 Q XIN2 EPS EPS EPS XIN2 BOOL FUNCTION_BLOCK HYSTERISIS VAR_INPUT XIN1, XIN2 : REAL; EPS : REAL; (* Hysterisis band *) END_VAR VAR_OUTPUT Q : BOOL := 0 END_VAR IF Q THEN IF XIN1 < (XIN2-EPS) THEN Q := 0 (* XIN1 decreasing *) END_IF; ELSIF XIN1 > (XIN2 + EPS ) THEN *) Q := 1; (* XIN1 increasing END_IF; END_FUNCTION_BLOCK

17 Programs : hierarchical design Start : BOOL; Emergency : BOOL; Limit : INT; Automation application INPUT OUTPUT IN_OUT EXTERNAL PROGRAM FUNCTION_BLOCK Type Local Type Local GLOBAL INPUT FUNCTION Type Local

18 Advantages POU s Create own Function Block Libraries (per application area) FBs are tested and documented Make libraries (world wide) accessible Re-use as much as possible Change programming to creating networks of FBs Save 40% on next project Beckhoff TwinCAT 18

19 Benefits Reduced waste of human resources (in training, debugging, maintenance and consultancy)

20 Benefits Reduced waste of human resources (in training, debugging, maintenance and consultancy) Creating a focus to problem solving via software re-usability (reduced application investment and supplier dependency)

21 Benefits Reduced waste of human resources (in training, debugging, maintenance and consultancy) Creating a focus to problem solving via software re-usability (reduced application investment and supplier dependency) Reduced misunderstandings and errors

22 Benefits Reduced waste of human resources (in training, debugging, maintenance and consultancy) Creating a focus to problem solving via software re-usability (reduced application investment and supplier dependency) Reduced misunderstandings and errors Programming techniques usable in more environments (general control)

23 Benefits Reduced waste of human resources (in training, debugging, maintenance and consultancy) Creating a focus to problem solving via software re-usability (reduced application investment and supplier dependency) Reduced misunderstandings and errors Programming techniques usable in more environments (general industrial control) Combining harmoniously different components from different locations, companies or countries, or projects

24 Benefits Reduced waste of human resources (in training, debugging, maintenance and consultancy) Creating a focus to problem solving via software re-usability (reduced application investment and supplier dependency) Reduced misunderstandings and errors Programming techniques usable in more environments (general industrial control) Combining harmoniously different components from different locations, companies or countries, or projects Increased connectivity (investment protection)

25 Benefits Reduced waste of human resources (in training, debugging, maintenance and consultancy) Creating a focus to problem solving via software re-usability (reduced application investment and supplier dependency) Reduced misunderstandings and errors Programming techniques usable in more environments (general industrial control) Combining harmoniously different components from different locations, companies or countries, or projects Increased connectivity (investment protection) Function "LIMIT" Function "TEST" Software Library Function Block "Turning" Function Block "Feeding" Function Block "Heating"

26 How to use IEC an example: Structuring Software Development with IEC Beckhoff TwinCAT 26

27 Software Development Cycle Design / Development / Installation / Maintenance.. phases

28 enhancements.. software development cycle..... new requirements.... new functionality. wishes.... new the never ending story of software

29 software quality factors.. Failure Rates: difference between hardware and software External Quality ( Perceived value ) versus Internal Quality Correctness, reliability, robustness, integrity, persistence, safety ease-of-use

30 Structuring Software Development with IEC meaning: internal Software Quality In the sense of: Understandable, Reusable, Verifiable, Maintainable, Isolation

31 Why Structuring? The ever increasing role of Software on system quality: errors cost money Requirements increased dramatically: 100 lines of codes now 10,000 lines SW development: not a one-man job anymore, but a team with different know how and background Commissioning, Installation, Maintenance, and Improvements essential parts

32 Advantages of Structuring Better Overview Better Basis for (internal) Communication Better Focus to problem solving Basis for reusable software Self-documenting

33 More Information... Free-of-Charge electronic Newsletter PLCopening (in english)

34 Microsoft Headquarters, Munich, Germany Project: Intelligent building automation for Microsoft Headquarters building (USH2000) Realisation: Beckhoff customer since: 2000 Beckhoff TwinCAT 34

35 Control architecture: Microsoft Headquarters, Munich, Germany CPU: HMI: 13 C6140 as central master computers and building computers 230 BC9000 Webpage/Internet Explorer I/O: Ethernet TCP/IP 27,500 data points (digital/analog) Control structure: Central control function: TwinCAT PLC + Builing Automation Library Decentral control function: TwinCAT PLC + Builing Automation Library Project realisation: FOM Future Office Management, Beckhoff, Siemens Gebäude Management and Service, digitales bauen/raumcomputer ag, G. A. Müller Beckhoff TwinCAT 35

36 Microsoft Headquarters, Munich, Germany Customer advantages: standard operating system Microsoft Windows CE and Embedded XP standard Ethernet components simple building configuration in case of changing utilisation operation with intelligent Windows CE pocket PCs comfortable room control via Internet Explorer/web page Beckhoff TwinCAT 36

37 BSH Bosch Siemens Appliances Aviva, Munich flexible office usage low remodeling costs increased office comfort data points 365 BC9000 Controller 4 IPC s DALI/EnOcean only one bus system, Ethernet as back bone Beckhoff TwinCAT 37

38 Beckhoff Building Automation offers... high user comfort due to homogeneous control platform high reliability due to of the shelf, approved components optimized price-value ratio high flexibility due to modular I/O design minimal operating costs due to intelligent resources management Buildings are getting more competitive, investors are increasing their profits, users are lowering their operating costs! Beckhoff TwinCAT 38

39 Beckhoff Building Automation Intelligent Building Automation with PC-Control Beckhoff TwinCAT 39