A relatively new standard called Functional Mockup Interface (FMI) provides a unique approach to standard models. The Model Exchange approach relies on already compiled models, thus eliminating the difference in behavior due to different implementations of the language compilers. This leads to much better interoperability, while sacrificing some of the flexibility (you cannot modify the equations in a generated model). For details about this new standard, please visit fmi-standard.org — there are an ever increasing number of tools that support this standard. The ANSYS 15.0 systems products include support for this new standard. Read more: http://bit.ly/1cmrBQ2

1. FMI Product Implementation at ANSYS
Sameer Kher
R&D Manager, ANSYS Inc.
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© 2011 ANSYS, Inc.
February 26, 2014

2. Agenda
•
•
Current FMI Support at ANSYS
•
ANSYS’ plans for FMI support and requirements from the
FMI standard
•
2
Overview of ANSYS system and embedded tools
Conclusions
© 2011 ANSYS, Inc.
February 26, 2014

3. SCADE Suite for mission critical embedded
software development
Control
Software Design
Formal
Verification
Model
Checking
SCADE Suite
KCG
C & Ada
RTOS
Adaptors
Debug &
Simulation
PROTOTYPE
& DESIGN
Rapid Prototyping
& Executable Spec
Model Coverage
Analysis
Time & Stack
Analysis
VERIFY
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© 2011 ANSYS, Inc.
February 26, 2014
Object Code &
Compiler
Verification
DO-178B
DO-178C
IEC 61508
EN 50128
ISO 26262
Certification Kits
GENERATE

4. SCADE Display for Model Based design of
embedded displays
HMI
Software Design
Model
Checking
Simulation
PROTOTYPE &
DESIGN
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© 2011 ANSYS, Inc.
February 26, 2014
VERIFY
SCADE
Display KCG
DO-178B
DO-178C
IEC 61508
EN 50128
ISO 26262
Certification Kits
GENERATE

5. ANSYS Simplorer: Multi-domain system simulator with
focus on electrical and electronics
• Integrated support for multiple standard modeling languages:
• IEEE VHDL-AMS
• Spice and Pspice
• C/C++
• Provides multiple levels of abstraction
• Behavioral modeling
• Structural modeling
• Links to other tools (ROM and Co-simulation)
• Includes rich library of models, from controls to complex physics
based semiconductor device models (IGBTS, Power MOSFETS, etc)
• Inherently mixed-signal – analog and digital
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© 2011 ANSYS, Inc.
February 26, 2014

6. What is VHDL-AMS
Very High Speed Integrated Circuit Hardware
Description Language – Analog and Mixed-Signal
Description &
simulation of
analog and
mixed signal
circuits and
systems
Description
& simulation
of eventdriven
systems
1993
IEEE 1076 VHDL
1999
IEEE 1076.1
VHDL-AMS
*Latest version of VHDL-AMS is 1076.1-2007
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© 2011 ANSYS, Inc.
February 26, 2014

7. ROM and Co-simulation links in Simplorer
Co-simulation Links
Controls and Embedded
-SCADE Tools
-Simulink and RTW
-MathCAD
Physics Tools
-Maxwell
-Rigid Dynamics
-Fluent
FMI Model Import
Reduced Order Models
Electro-Magnetics
-Maxwell State-space
-Maxwell ECE
-Maxwell Inductance
-Maxwell Capacitance
Electronics
-Q3D/Q2D
-SIwave
-HFSS
Thermal Effects
-ICEPAK (LTI)
-Fluent (LTI)
Mechanical Effects
-ANSYS Mechanical
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© 2011 ANSYS, Inc.
February 26, 2014

8. Agenda
•
•
Current FMI Support at ANSYS
•
ANSYS’ plans for FMI support and requirements from the
FMI standard
•
8
Overview of ANSYS system and embedded tools
Conclusions
© 2011 ANSYS, Inc.
February 26, 2014

9. FMI Support in SCADE Suite and Display
• SCADE Suite and Display allow exporting a model as a FMU
•
component for model exchange
Two execution modes are supported:
– Black-box  the code from the model is directly embedded in the
generated FMU
– White-box  the model is executed in SCADE Suite Simulator; and the
FMU forwards the I/Os to SCADE Suite Simulator through a network
connection
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© 2011 ANSYS, Inc.
February 26, 2014

10. FMI Support in Simplorer: Model Exchange Import
• Extracts the zip file .fmu
• Parses XML and compiles the model and creates component
• Interacts with the Simplorer C Interface
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© 2011 ANSYS, Inc.
February 26, 2014

11. Demo: Links with Embedded through FMI
extend system simulation capabilities
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© 2011 ANSYS, Inc.
February 26, 2014

12. Demo: Links with Embedded through FMI
extend our system simulation capabilities
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© 2011 ANSYS, Inc.
February 26, 2014

13. Agenda
•
•
Current FMI Support at ANSYS
•
ANSYS’ plans for FMI support (and requirements from the
FMI standard)
•
13
Overview of ANSYS system and embedded tools
Conclusions
© 2011 ANSYS, Inc.
February 26, 2014

14. ANSYS’ Plans for FMI Support
• FMI Export for VHDL-AMS
• FMI co-simulation support
Requirements from FMI Standard
• Support for Partial Derivatives (already in FMI 2.0?)
• Support for acausal/conservative interfaces
• Support for Composite types
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© 2011 ANSYS, Inc.
February 26, 2014

15. Agenda
•
•
Current FMI Support at ANSYS
•
ANSYS’ plans for FMI support (and requirements from the
FMI standard)
•
15
Overview of ANSYS system and embedded tools
Conclusions
© 2011 ANSYS, Inc.
February 26, 2014

16. Conclusions
• Release 15 (2014) of ANSYS provides support for FMI
– Model export for SCADE tools
– Model import for Simplorer
• Future releases will add more support for FMI
• FMI has potential to be a true simulation tool agnostic
modeling and model exchange standard
• Current version of the standard is useful for a range of
applications – physical and behavioral
• FMI standard needs to evolve in order to be more broadly
applicable
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© 2011 ANSYS, Inc.
February 26, 2014