Rockwell Automation Publication MOTION-RM002H-EN-P-February 2018 117
Lock Direction
None
immediateforwardonly
immediatereverseonly
positionforward
positionreverse
0
1
2
3
4
Event Distance No enumeration Array or 0
Calculated Data No enumeration Array or 0
See Structured Text Syntax for more information on the syntax of expressions
within structured text.
MOTION_INSTRUCTION Data Type
To See If Check If This Bit Is
Set To
Data Type Notes
A false-to-true transition caused the
instruction to execute
EN BOOL The EN bit stays set until the process is complete and the
rung goes false.
The move was successfully initiated DN BOOL
An error happened ER BOOL
The axis is moving to the end Position IP BOOL Any of these actions stop this move and clear the IP bit:
• The axis gets to the end Position
• Another MAM instruction supersedes this MAM
instruction
• MAS instruction
• Merge from another instruction
• Shutdown command
• Fault Action
The axis is at the end Position PC BOOL
• The PC bit stays set until the rung makes a
false-to-true transition.
• The PC bit stays cleared if some other action stops the
move before the axis gets to the end Position.
Description
The MAM instruction moves an axis to either a specified absolute position or by a
specified incremental distance. The MAM instruction can also produce other
special types of moves.
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