MCA_JogAxis (FB)

FUNCTION_BLOCK MCA_JogAxis

This function block jogs an axis for at least a given distance forward or backward with the selected jog velocity and acceleration.

This function block, after rising edge on JogForward or JogBackward, start a continuous move (at least for the minimum distance) and continue upon high-level on these inputs with a continuous motion, until they are FALSE, then on their falling edge, the axis is regularly decelerated to stop. The movement is carried out on Jog velocity for the minimum distance or longer.

• In case of both enable signals (JogForward and JogBackward) are high, the function block will not move the axis.

• In case of MinJogDistance = 0, no specified distance is moved and the movement will stop as soon as the JogForward and JogBackward is FALSE.

InOut:

Scope	Name	Type	Comment
Input	JogForward	BOOL	Move forward as long as JogForward = TRUE or at least MinJogDistance
	JogBackward	BOOL	Move backward as long as JogForward = TRUE or at least MinJogDistance
	JogVelo	LREAL	[u/s] Velocity to jog. Range: >0. If value = 0, JogVelo will be equal to parameter paraMaxVelocityAppl
	JogAcc	LREAL	[u/s°°2] Acceleration to jog. Range: >0. If value = 0, JogAcc will be equal to parameter paraMaxAccelerationAppl.If value > 0 and <= 1,JogAcc will be limited to 1.
	JogDec	LREAL	[u/s°°2] Deceleration to jog. Range: >0. If value = 0, JogDec will be equal to parameter paraMaxDecelerationAppl.If value > 0 and <= 1,JogDec will be limited to 1.
	JogJerk	LREAL	[u/s°°3] Jerk value for jog. Range: >=0, <0: value at input ignored
	MinJogDistance	LREAL	[u] Minimum distance to jog
Output	Done	BOOL	Shows the status of the function block. Done = TRUE if the execution is finished
	InVelocity	BOOL	Commanded velocity is reached when the axis is already in a continuous movement, which means it only may be true when the relative distance of the axis movement exceeds MinJogDistance
	Busy	BOOL	The function block is not finished
	Active	BOOL	Indicates that the function block has control on the axis
	CommandAborted	BOOL	Command is aborted by another command from other PLCopen function block
	Error	BOOL	Signals that error has occurred within function block
	ErrorID	ERROR_ID	Error identification. For error details refer to Enumeration ERROR_ID
Inout	Axis	Axis_Ref	Reference to axis