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Inserts the data from the model inputs array into the model DLL inputs, takes a single step of the model DLL, and sends the data from the model DLL outputs to the model outputs array. Use the SIT Initialize Model VI before executing any steps in the model DLL. Use the SIT Finalize Model VI when you finish executing all the steps in the model.

	Simulation Data in specifies unique information about the model DLL.
	model inputs specifies the values you want to send to the model DLL before the step.
	error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	dispatchlist returns the list of tasks in a multirate model that the simulation needs to send to the model DLL at the current time step.
	Simulation Data out returns unique information about the model DLL.
	model outputs returns the values that the model DLL returns after the step.
	time returns the updated time in seconds in the simulation model after the step is complete.
	error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.
	last step? returns TRUE when the simulation is complete.