PTOSimple Function Block

Overview

The PTOSimple function block manages the PTO function.

Call the function block in each cycle of the MAST task.

The function block instance name is the name defined by configuration.

It is created when a user invokes PTO mode on Channel PTO 0 from the Embedded Functions configuration:

NOTE: Assign the function block instance name to the Global Variable PTO_PWM.PTO00.

Graphical Representation

IL and ST Representation

To see the general representation in IL or ST language, refer to the chapter Function and Function Block Representation.

I/O Variables Description

This table describes the input variables:

Inputs	Type	Comment
ResetError	BOOL	On rising edge, resets the detected PTO error. NOTE: The Execute pin on any PTOMoveRelative tied to the PTO00 axis must be set to FALSE for resetting detected errors.
DIS_AuxInput	BOOL	TRUE = disables the auxiliary input when configured as Drive Ready input. This pin has no effect when auxiliary input is not used.

Inputs

Type

Comment

ResetError

BOOL

On rising edge, resets the detected PTO error.

NOTE: The Execute pin on any PTOMoveRelative tied to the PTO00 axis must be set to FALSE for resetting detected errors.

DIS_AuxInput

BOOL

TRUE = disables the auxiliary input when configured as Drive Ready input.

This pin has no effect when auxiliary input is not used.

This table describes the output variables:

Outputs	Type	Comment
PTO_REF	PTO_REF	Reference to the PTO channel. To be used with the PTO_REF_IN input pin of the PTO function blocks.
PTOError	BOOL	TRUE = indicates that an error was detected. Use PTOGetDiag function block to get more information about this detected error.
Moving	BOOL	TRUE = indicates that the motion state is moving.
Stopping	BOOL	TRUE = indicates that the motion state is stopping.
Frequency	DWORD	Current velocity (in Hz) of the move.
Distance	DWORD	Distance traveled by the current move of the PTO axis (in number of pulses).