FB_SimValve
This simplified simulation of an analog proportional or servo valve is used as part of a simulated hydraulic axis. It supports a range of typical variants of non-linearities. There is no dynamic behavior.
 | The implementation of this object is not a full-fledged and realistic simulation. |
| Objects of this type are typically used as local elements in an implementation of an axis simulation. |
Syntax:
FUNCTION_BLOCK ABSTRACT FB_SimValve
Properties
Name | Type | Access | Description |
|---|---|---|---|
AdsAddr | AMSADDR | Get, Set | This variable is used to implement a mapping interface of an analog valve. |
ControlValue | INT | Get, Set | This runtime value must be updated cyclically with an output property of a FB_SimAnalogOutputElTerminal4 instance. This assignment can be understood as the cable connecting an output terminal to an input pin of the valve connector. |
ControlValueNorm | LREAL | Get | This runtime value provides information about the current control value in abstract units (e.g. %). |
ControlValueType | E_SimControlValueType | Get, Set | This parameter must be initialized with a value that specifies the type of the control signal. It must match the type of the simulated output terminal. |
InfoDataState | UINT | Get, Set | This variable is used to implement a mapping interface of an analog valve. |
Orifice_PA | LREAL | Get | This runtime value provides information about the current opening between the supply port and the A-side port of the valve. |
Orifice_PB | LREAL | Get | This runtime value provides information about the current opening between the supply port and the B-side port of the valve. |
Overlapp_PA | LREAL | Get, Set | This parameter must be initialized with the overlap on the A-side of the valve. Typical values can be found in the manufacturer's data sheets. |
Overlapp_PB | LREAL | Get, Set | This parameter must be initialized with the overlap on the B-side of the valve. Typical values can be found in the manufacturer's data sheets. |
P_A | LREAL | Get, Set | This runtime value reports about the pressure at the A-side port of the valve. |
P_B | LREAL | Get, Set | This runtime value reports about the pressure at the B-side port of the valve. |
Q_PA | LREAL | Get | This runtime value reports about the oil flow between the supply port and the A-side port of the valve. |
Q_PB | LREAL | Get | This runtime value reports about the oil flow between the supply port and the B-side port of the valve. |
Qnominal_PA | LREAL | Get, Set | This parameter must be initialized with the capacity of the supply to the A-side opening of the simulated valve. Typical values can be found in the manufacturer's data sheets. |
Qnominal_PB | LREAL | Get, Set | This parameter must be initialized with the capacity of the supply to the B-side opening of the simulated valve. Typical values can be found in the manufacturer's data sheets. |
SpoolFeedback | INT | Get | This runtime value reports about the actual position of the valve piston. It is used to implement a mapping interface of an analog valve. |
SupplyPressure | LREAL | Get, Set | This runtime value must be updated with the supply pressure. If the value is assumed to be constant, it can be updated once during initialization. |
Toggle | BOOL | Get | This variable is used to implement a mapping interface of an analog valve. |
ValveSpoolType | E_SimValveSpoolType | Get, Set | This parameter sets the transfer characteristic of the valve. |
WcState | BOOL | Get, Set | This variable is used to implement a mapping interface of an analog valve. |
Methods
Name | Description |
|---|---|
Cyclic() | Cycle method |
Interfaces
Type | Description |
|---|---|
I_SimValve | Standard interface for FB_SimValve. |
Requirements
Development environment | Target platform | PLC libraries to include |
|---|---|---|
TwinCAT v3.1.4024.35 | PC or CX (x64, x86) | Tc3_PlasticFunctions v3.12.4.26 or higher Tc3_PlasticHydraulic v3.12.4.26 or higher |