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OMER - 2

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Title: 3. Gesamtworkshop des SPP Author: Torsten Heverhagen Last modified by: Torsten Heverhagen Created Date: 10/27/2000 8:11:36 AM Document presentation format – PowerPoint PPT presentation

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Title: OMER - 2


1
OMER - 2
  • Implementing Function Block Adapters

Torsten Heverhagen, Rudolf Tracht Automation and
Control, University of Essen, Germany
2
Overview
  • Outline of an example scenario
  • Introducing a Function Block Adapter
  • The FBA - Language
  • Implementation and Execution Issues
  • Summary and Outlook

3
Picture of the Assembly Line
4
The considered Part of the Assembly Line
Programmable Logic Controller Environment IEC
61131-3
transport system
Industrial PC Environment UML-RT
5
The Function Block - MyFB
6
Sequence Diagram for the Scenario
7
Introducing the Function Block Adapter Class
8
Extending a UML-RT Structure Diagram
9
Behavior of Function Block Adapters
10
Execution Semantics
11
Hardware Solutions
12
Component and Deployment View
MySystem.EXE
MyFBA.SCL
MyFBA.cpp
MyS7Project
MyFB.SCL
MyCapsule.cpp
IPC
PLC
PROFIBUS
13
Synchronization
IPC-Part of the FBA
PLC-Part of the FBA
14
Summary and Outlook
  • Function Block Adapters are introduced into the
    design model of a system
  • Connecting PLCs and Industrial PCs can be done in
    very different hardware environments ?
    independence of implementation issues is
    important
  • Implementation models are more structured when
    using FBAs for the design
  • Development of a formal semantic is an ongoing
    work

15
Subchart for a FB-Signal
C false sig2.data D SendSync (port1,
sig2, sig3, 60s)
wait
sig3 / C true
wait
after 1ms / C false
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