Rockwell Automation GMLC Reference Manual - Manual (Page 275)

Publication GMLC-5.2 - November 1999
238 Motion Blocks
The radius of the helix is the vector distance from the current position of
the X and Y axes to the specified center point. In Absolute mode, the
radius of the helix is:
In Incremental mode, the radius of the helix is:
The diameter of the helix is twice its radius.
2 2
( . ) ( . ) Command Pos X Center X Command Pos Y Center Y
− + −
2 2
( ) ( ) Center X Center Y
+