MLFB_Jog

 Function - Define to jog an axis in the selected direction at a defined speed.

Inputs

Input	Data Type	Range	Unit	Default	Description
En	BOOL	No range	N/A	No default	Enables execution. Used in the FFLD editor only.
AxisID	DINT	No range	N/A	No default	ID Name of the Axis block. The AxisID selects the axis to jog.
JogPlus	BOOL	0 to 1	N/A	No default	Enables a jog in the plus direction.
JogMinus	BOOL	0 to 1	N/A	No default	Enables a jog in the minus direction.
Speed	LREAL	No range	User unit/sec	No default	Rate the axis moves.

Outputs

Output	Data Type	Range	Unit	Description
InMotion	BOOL		N/A	Jogging is active when TRUE.

Remarks

• This function or function block can be used with PLCopen Motion engines.
• This function or function block is used to command motion in a designated direction at a defined rate. 
  • This may be used where continuous motion is required (e.g., a conveyor system or in a setup mode for manually jogging the axis).
• The JogPlus and JogMinus inputs select the direction the motion occurs in. 
  • Motion starts when the JogPlus or JogMinus input is TRUE.
    Motion stops when the input is FALSE.
  • Only one of these inputs should be enabled at a time.
  • If both are selected, the motion stops.
• If another motion is active when the jog is requested, that motion is aborted and the jog starts.
• The En input (FFLD editor only) must be high.
  • Typically wired to the rail.

This image shows the function or function block I/O.

Figure 1: MLFB_Jog

FBD Language Example

FFLD Language Example

IL Language Example

Not available.

ST Language Example

//Jog Axis1 at 6000 user units a second when JogPlus or JogMinus variables are TRUE

//Stop motion on falling edge of either variable
MLFB_Jog( PipeNetwork.AXIS1, JogPlus, JogMinus, 6000 );

See Also

MLAxisMoveVel