MC_ActivateExternalSetpointGeneration

MC_ActivateExternalSetpointGeneration 1:

This function block activates external setpoint generation. Setpoints are generated by a function block, which is called through the ITcMcExternalSetpointGenerator interface from the MC context. Additionally custom startup data can be passed through the generator.

Syntax

Definition:

FUNCTION_BLOCK MC_ActivateExternalSetpointGeneration
VAR_IN_OUT
    Axis                      : Reference To AXIS_REF;
END_VAR
VAR_INPUT
    Execute                   : BOOL;
    ExternalSetpointGenerator : ITcMcExternalSetpointGenerator;
    AllowOtherContext         : BOOL;
    EnableDynamicChecks       : BOOL;
    InvokeId                  : XWORD;
    BufferMode                : EBufferMode;
END_VAR
VAR_OUTPUT
    Busy                      : BOOL;
    Active                    : BOOL;
    CommandAborted            : BOOL;
    Error                     : BOOL;
    ErrorId                   : UDINT;
END_VAR

MC_ActivateExternalSetpointGeneration 2: Inputs

Name

Type

Default

Description

Execute

BOOL

 

Trigger the command with rising edge.

ExternalSetpointGenerator

ITcMcExternalSetpointGenerator

 

Function block that implements (cyclic) methods for external setpoint generation

AllowOtherContext

BOOL

false

Allow the calling task to differ from the MC task (MET task). When TRUE, ensure compatible update rates and safe data access in the ITcMcExternalSetpointGenerator methods.

EnableDynamicChecks

BOOL

true

Trigger error on inconsistent setpoint values (position, velocity, acceleration) if EnableDynamicChecks = TRUE.

InvokeId

XWORD

0

Invocation identifier, passed through to the external setpoint generator. Can be used to distinguish multiple activations of the same generator, or to pass custom data (e.g. a pointer).

BufferMode

EBufferMode

Aborting

Chronological sequence of the command

MC_ActivateExternalSetpointGeneration 3: In/Outputs

Name

Type

Description

Axis

Reference To AXIS_REF

Reference to the axis

MC_ActivateExternalSetpointGeneration 4: Outputs

Name

Type

Description

Busy

BOOL

Function block is not finished and new output values are to be expected.

Active

BOOL

Function block has active control on the axis.

CommandAborted

BOOL

Command is aborted by another command.

Error

BOOL

Error occurred within function block.

ErrorId

UDINT

Error identifier

Weiterführende Informationen

Versionsinformation

  • TwinCAT Standard >= v3.1.4026.23.1
  • TF5500 MC3 Base >= v4.0.6