Step III_2 (In User-defined Program)

If using this step, the user has to close RecurDyn model before starting the simulation.

Library files: <Install Dir>/Toolkits/Controls/General10/CoSimRD.lib, CoSimRD.dll

Interface Function

RunRecurDyn:

• char* chDirectory

• char* chmodelname

• double controltimestep

• double endtime

• int plotStep

• int staticanalysis

• int RecurDynShow

• int RecurDynAni

• int* errorcode

This function must be called only one before interfacing.

Parameter Name	Unit	Input/Output	Type	Description
chDirectory	[-]	Input	char*	Is the RecurDyn program installed directory.
chmodelname	[-]	Input	char*	Is the RecurDyn model name
controltimestep	[-]	Input	double	Is the interface step
endtime	[-]	Input	double	Is the simulation end time
plotStep	[-]	Input	int	Is the RecurDyn request step
staticanalysis	[-]	Input	int	0: dynamic analysis 1: static analysis
RecurDynShow	[-]	Input	int	0: no 1: show the RecurDyn program
RecurDynAni	[-]	Input	int	0: no 1: show the animation
errorcode	[-]	Output	int	0: no error 1: The model can’t be simulated. 2: RecurDyn can’t be executed.

CommunicateRecurDyn:

• double sim_time

• int iNPin

• int iNPout

• double *dPIN

• double *dPOUT

• double *rd_time

• int *errorcode

This function must be called once at interface time step.

Parameter Name	Unit	Input/Output	Type	Description
sim_time	[-]	Input	double	Is the simulation time
iNPin	[-]	Input	int	Is the number of plant input
iNPout	[-]	Input	int	Is the number of plant output
dPIN	[-]	Input	double	Is the values of plant input
dPOUT	[-]	Output	double	Is the values of plant output
rd_time	[-]	Output	double	Is the RecurDyn simulation time
error code	[-]	Output	int	0: no error 1: The model is abnormally stopped 2: The RecurDyn don't respond. 3: Interface time don’t match.

CloseRecurDyn();

This function must be called only one after interfacing.