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Partially Supported Blocks (Control Design and Simulation Module)

LabVIEW 2012 Control Design and Simulation Module Help

Edition Date: June 2012

Part Number: 371894G-01

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The Simulation Model Converter provides limited support for the following blocks used in The MathWorks, Inc. Simulink® application software. If the Simulation Model Converter does not convert a block properly, you must create a simulation subsystem in LabVIEW to accomplish the same functionality as the block to replace the placeholder simulation subsystem that the Simulation Model Converter creates. In the Simulation Model Converter dialog box, place a checkmark in the Show Errors checkbox to display information about any warnings or errors the Simulation Model Converter encountered during the conversion.

Simulink Block Limitation
Data Type Conversion When you use the Simulation Model Converter to convert a Data Type Conversion block that converts negative numbers to numeric values with an unsigned data type, the results vary from those that the Simulink application software returns. The Control Design and Simulation Module saturates the numeric values by clipping the negative values to zero. The Simulink application software wraps the numeric value by reinterpreting the negative number as an unsigned number, which creates a large positive number.
Direct Lookup Table (n-D) The Simulation Model Converter can convert a Direct Lookup Table (n-D) block only for tables of up to 10 dimensions..
Discrete Derivative The Simulation Model Converter cannot convert this block if the block has gains or initial conditions.
Discrete FIR Filter The Simulation Model Converter can convert a Discrete FIR Filter block only if it uses scalar quantities.
Floating Scope The Simulation Model Converter treats floating scopes as regular scopes when converting this block. You must wire floating scopes manually in the Control Design and Simulation Module.
From When you use the converted subsystem corresponding to this block, race conditions might occur.
Gain The Simulation Model Converter cannot convert this block if this block performs matrix multiplication.
Goto When you use the converted subsystem corresponding to this block, race conditions might occur.
Integer Delay The Simulation Model Converter cannot convert Integer Delay blocks that use initial conditions.
Matrix Concatenate The Simulation Model Converter can convert this block when the block concatenates 2D matrices along rows, columns, or a third dimension.
Probe LabVIEW does not support framed signals. The framed signal output of the converted subsystem corresponding to this block is always zero.
Pulse Generator The Simulation Model Converter cannot convert this block if it uses sample-based or external clock settings.
Reshape The Simulation Model Converter cannot convert Reshape blocks that have signals with more than two dimensions.
Transfer Fcn First Order The Simulation Model Converter cannot convert Transfer Fcn First Order blocks that use initial conditions, rounding, or saturation.
Transfer Fcn Lead or Lag The Simulation Model Converter cannot convert Transfer Fcn Lead or Lag blocks that use initial conditions, rounding, or saturation.
Transfer Fcn Real Zero The Simulation Model Converter cannot convert Transfer Fcn Real Zero blocks that use initial conditions, rounding, or saturation.
Scope When you use the Simulation Model Converter to convert a Scope block with multiple inputs, the results vary from those that the Simulink application software returns. The Control Design and Simulation Module plots multiple inputs on one graph. The Simulink application software plots multiple inputs on separate graphs.
Sine Wave The Simulation Model Converter cannot convert Sine Wave blocks that have sample-based or external clock settings.
Step The Simulation Model Converter cannot convert Step blocks that use a user-specified sample time.

 

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