FB_SimCylinder
This simplified simulation of a universal cylinder is used as part of a simulated hydraulic axis. A number of typical effects are supported.
 | 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 FB_SimCylinder
Properties
Name | Type | Access | Description |
|---|---|---|---|
CycleTime | LREAL | Get, Set | This parameter must be initialized with the call cycle time. |
ExternalForce | LREAL | Get, Set | This runtime value can be used to update an external force in the simulation calculation. It is used for conversion to pressure values. |
HighSideBlock | LREAL | Get, Set | The simulated upper mechanical stop. |
HighSideSpringLength | LREAL | Get, Set | The simulated spring action before the upper mechanical stop. |
LowSideBlock | LREAL | Get, Set | The simulated lower mechanical stop. |
LowSideSpringLength | LREAL | Get, Set | The simulated spring action before the lower mechanical stop. |
P_A | LREAL | Get, Set | The simulated pressure at the A-side cylinder port. |
P_B | LREAL | Get, Set | The simulated pressure at the B-side cylinder port. |
PistonDiameter | LREAL | Get, Set | The diameter of the cylinder piston. It is used to calculate the effective areas of the cylinder. |
Position | LREAL | Get, Set | The current position of the cylinder. |
Q_PA | LREAL | Get, Set | This runtime value provides information about the oil flow flowing into or out of the A-side cylinder port. This value is usually determined by a valve simulation and passed on by a hydraulic axis simulation. |
Q_PB | LREAL | Get, Set | This runtime value provides information about the oil flow flowing into or out of the B-side cylinder port. This value is usually determined by a valve simulation and passed on by a hydraulic axis simulation. |
RodDiameter | LREAL | Get, Set | The diameter of the rod of the cylinder. It is used to calculate the effective areas of the cylinder. |
Stroke | LREAL | Get, Set | The stroke length (i.e. the distance between the lower and upper mechanical end positions) of the cylinder. It is used to limit the actual position. |
Methods
Name | Description |
|---|---|
Cyclic() | Cycle method |
Interfaces
Type | Description |
|---|---|
I_SimCylinder | Standard interface for FB_SimCylinder. |
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 |