138  Rockwell Automation Publication MOTION-RM002H-EN-P-February 2018 
This information applies to the CompactLogix 5370, ControlLogix 5570, 
Compact GuardLogix 5370, GuardLogix 5570, Compact GuardLogix 5380, 
CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, and GuardLogix 
5580 controllers. Controller differences are noted where applicable. 
Use the Motion Change Dynamics (MCD) instruction to selectively change the 
speed, acceleration rate, or deceleration rate of a move profile or a jog profile in 
process. 
Available Languages 
Ladder Diagram 
 
Function Block 
This instruction is not available in function block. 
Structured Text 
MCD(Axis, MotionControl, MotionType, ChangeSpeed, Speed, ChangeAccel, 
AccelRate, ChangeAccelJerk, AccelJerk, ChangeDecelJerk, ChangeDecel, 
DecelRate, SpeedUnits, AccelUnits, DecelUnits, JerkUnits); 
Motion Change Dynamics (MCD)