he SLA command is used to set the number of attempts to complete the StepNLoop operation.  The operation is completed when the position of the axis is within the tolerance range of the target position (SLT).  If after the number of attempts is reached, and the axis position is not within the tolerance range, the StepNLoop operation is canceled, and an error status is output

Access: Read/Write

Category: Stepnloop

Applies to: All Commander Controllers


ASCII                        SLA                

Syntax        

               

Read

SLA[axis]

[axis] specifies the axis to be set (X, Y, Z, U)


Write

SLA[axis]=[value]                 

[axis] specifies the axis to be set (X, Y, Z, U)

[value]      specifies the maximum number of attempts (0 – 2,147,483,647) 31-bit value (0 is unlimited attempts)


Reply 

Command is accepted and executed


Read         

Number of attempts for the specified axis


Write           

OK


Command cannot be processed

       An error message is returned. See Error Codes


Example 

Read        

SLAX                * Returns the value set indicating the number of attempts allowed for the X-axis

Write        

SLAY=10         * Sets the number of retry limit to 10 for the Y-axis


Notes

  • Joystick and buffer operation are invalid during StepNLoop operation    
  • When SLA is set to 0, there is no limit and the commander will continue to try and reach the tolerance range of the target position until successful.


See also

StepNLoop

SL, SLE, SLR, SLRA, SLS, SLT, 


Commander Manual

StepNLoop Closed Loop Control operation