ExternalGenerating

ExternalGenerating 1:

Not available via the axis interfaces

This core function is not available via the axis interfaces. Direct access by the application is not required.

ExternalGenerating 2:

This core function is used for setpoint generation generated in TwinCAT 3 Plastic Technlogy Functions. It belongs to the group of statically controlled core functions.

Syntax:

FUNCTION_BLOCK FB_ExternalGenerating EXTENDS FB_CorefunctionFeedback

ExternalGenerating 3: Properties

Name

Type

Access

Description

InitState

BOOL

Get, Set

The core function is not completely and successfully initialized.

FB_ExternalGenerating

Position

LREAL

Get, Set

Transfer of the set position.

Limiting

LREAL

Get, Set

Transfer of the active limitation value

Velocity

LREAL

Get, Set

Transfer of the target velocity.

TorqueLimiting1

LREAL

Get, Set

Transfer of the applied torque limit.

FB_CorefunctionFeedback

AbortedState

BOOL

Get, Set

Signals the abort of a command by another Corefunction.

BusyState

BOOL

Get, Set

Signals the active execution of a command.

DoneState

BOOL

Get, Set

Signals the successful execution of a command.

IdleState

BOOL

Get, Set

The Corefunction is ready for operation and commandable.

IsCommanded

BOOL

Get

Signals the pending of a command.

FB_Corefunction

[INTERN] AxisState

E_AxisState

Get, Set

The current state of the axis state machine.

[INTERN] Connected

BOOL

Get

The Corefunction is connected to an axis.

[INTERN] CycleTime

LREAL

Get, Set

The cycle time of the PLC task from which the method Cyclic() of the Corefunction is executed.

[INTERN] CycleTimeValid

BOOL

Get, Set

A TRUE indicates that the CycleTime of the Corefunction is defined.

FailedState

BOOL

Get, Set

If IsActivated is TRUE at the same time: Signals the failure of an accepted command.

If IsActivated is FALSE at the same time: Signals the rejection of a command.

HasFeedback

BOOL

Get

The core function has responded to a pending command.

IsActivated

BOOL

Get

The core function has an accepted command pending.

IsLocalCmd

BOOL

Get

Signals that the axis is assigned with a command of this core function.

[INTERN] NextCore

I_Corefunction

Get, Set

This property is part of the execution chain and must not be affected by the application task.

[INTERN] OnlineChangeMark

BOOL

Get, Set

The axis uses this property to signal an Online Change to the Corefunction.

ReadyState

BOOL

Get, Set

The Corefunction is ready for operation, but is not commandable at this time.

Possible reasons are:
- The axis is not enabled.
- Another Corefunction is active.
- The Corefunction does not support any commands.

ExternalGenerating 4: Methods

Name

Description

[INTERN] Cyclic()

This method is called cyclically by the axis.

FB_ExternalGenerating

DoEnable()

Enables/disables external setpoint generation.

FB_Corefunction

[INTERN] ApplyCommand()

Applies the command to the axis.

[INTERN] ClearStates()

Clears up some of the possible states.

[INTERN] DoReset(bExecute)

This method is called when the axis is reset.

[INTERN] RemoveCommand()

Removes the command from the axis.

ExternalGenerating 5: Interfaces

Type

Description

I_Corefunction

Standard interface on FB_Corefunction.

I_ExternalGenerating

Standard interface on FB_ExternalGenerating.

I_CorefunctionFeedback

Standard interface on FB_CorefunctionFeedback.

Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT v3.1.4024.55

PC or CX (x64, x86)

Tc3_PlasticFunctions (>= v12.6.1.0)