·780·
Installation manual
CNC 8060
CNC 8065
10.
CNC VARIABLES.
(REF: 1402)
Variables related to the position of the axes.
10.41 Variables related to the position of the axes.
There are real and theoretical coordinates corresponding to the tool base and tool tip. All
of them may be referred to Machine Zero or to the current Part Zero.
A theoretical coordinate is the position that the axis must occupy at all times, a real coordinate
is the one it actually occupies and the difference between these two is called "following error".
PROGRAMMED COORDINATES.
(V.)[ch].A.PPOS.xn
Variable that can only be read from the program, PLC and interface.
Variable valid for rotary and linear axes.
The variable returns the value of block preparation.
Channel [ch]. Programmed part coordinates (tool tip).
Syntax.
·ch· Channel number.
·xn· Name, logic number or index of the axis.
Remarks.
This variable returns the target coordinate, in part coordinates and referred to the tool tip,
in the current reference system; i.e. taking into consideration the coordinate rotation, scaling
factor, active inclined plane, etc.
The values read from a program or from the PLC and the interface will be different when the
coordinate is affected by tool compensation or when machining in round corner mode. The
value read by program will be the programmed coordinate whereas the value read from the
PLC or interface will be the real (actual) coordinate considering tool radius compensation
and corner rounding.
(V.)[ch].G.PLPPOS1
Variable that can only be read from the program, PLC and interface.
Variable valid for rotary and linear axes.
The variable returns the value of block preparation.
Channel [ch]. Coordinate programmed in the first axis of the channel (tool tip).
Syntax.
·ch· Channel number.
V.A.PPOS.Z Z axis.
V.A.PPOS.3 Axis with logic number ·3·.
V.[2].A.PPOS.3 Axis with index ·3· in the channel ·2·.
Programmed movements. Returned values.
G1 X10 V.A.PPOS.X = 10
#SCALE [2]
G1 X10
Scaling factor of ·2·.
V.A.PPOS.X = 20
G73 Q90
G1 X10
Coordinate system rotation.
V.A.PPOS.Y = 20
The Y axis is the one that moves
V.[2].G.PLPPOS1 Channel ·2·.
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