FMU

Fmu(
  path    = "mefmu_siso_cs.fmu", 
  type    = "CS",
  x       = array_x, 
  y       = array_y, 
  u       = array_u, 
  ip_addr = "localhost"
)

id

Integer

Element identification number. This number is unique among all FMUs.

label

String

The “short” name for the FMU element.

type

String

Type of FMU. Choose between “CS” (CoSimulation) or “ME” (ModelExchange)

• Default: “ME”

path

FileName

The path to the FMU file.

x

Reference(Array)

Specifies the Reference_Array used to store the continuous states, x, of this FMU.

You can use the ARYVAL() function with its ID to access the states in a MotionSolve expression. You can also use its ID in SYSFNC and SYSARY to access the states from a user subroutine.

y

Reference(Array)

Specifies the Reference_Array used to store the output, y, of this FMU.

You can use the ARYVAL() function with its ID to access the outputs in a MotionSolve expression. You can also use its ID in SYSFNC and SYSARY to access the outputs from a user subroutine.

u

Reference(Array)

Specifies the Reference_Array used to store the input u of this FMU.

You can use the ARYVAL() function with this ID to access the inputs in a MotionSolve expression. You can also use this ID in SYSFNC and SYSARY to access the inputs from a user subroutine.

ic

Reference(Array)

Specifies the Reference_Array used to store the initial conditions for the continuous states of this FMU.

You can use the ARYVAL() function with its ID to access the ICs in a MotionSolve expression. You can also use its ID in SYSFNC and SYSARY to access the IC values from a user subroutine.

static_hold

Boolean

A flag for indicating whether the value of dynamic state is kept constant during static or quasi-static simulations. It is only applicable to Model-Exchange FMUs.

See Comment 8 of the Control: FMU for more details.

dll

String

Specifies the path and name of the DLL or shared library that will be used to load the user’s FMU. MotionSolve uses this information to load the user subroutine in the DLL at run time.

• Default: “nugsefmu”

interval

Double

The time interval between successive communications with the FMU. FMU outputs are interpolated for all other calls.

• Default: HMAX, the maximum step size defined for the simulation by the simulation control parameters

ip_address

String

IP address for the FMU connecting to MotionSolve.

• Default: “PIPE”

A pipe is used as the means for inter-process communication when MotionSolve and the FMU reside on the same machine. When MotionSolve and the FMU reside on different machines, specify the actual IP address as a string.

See Comment 6 in Control: FMU for more information.

var_name

String

String that lists the name of each variable inside FMU that can be assigned a value.

• Values delimited by “;” (semicolon)
• Default: “”

var_ic

String

String that lists the value for each variable defined by “var_name” that needs to be set by the user.

• Values delimited by “;” (semicolon)
• Default: “”

x = Array(label="States", type="x")
y = Array(label="Outputs", type="y")
u = Array(label="Inputs", type="u", size=1)
u. variables = Variable(
    label    = "u[0]",
    function = "-wz(30102010)+varval(30100100)"
    )
fmu = Fmu(
   path       = "Hydraulic_Valve.fmu", 
   type       = "ME", 
   x          = x, 
   y          = y,
   u          = u, 
   ip_address = "PIPE")

1. See Properties for an explanation about what properties are, why they are used, and how you can extend these.
2. For a more detailed explanation about FMU, see the Model Statement Control: FMU.