Programming manual
CNC 8055
CNC 8055i
HIGH-LEVEL LANGUAGE PROGRAMMING
13.
·M· & ·EN· MODELS
SOFT: V02.2X
·387·
Variables
DIAM
It changes the programming mode for X axis coordinates between radius and diameter. When
changing the value of this variable, the CNC assumes the new way to program the following blocks.
When the variable is set to ·1·, the programmed coordinates are assumed in diameter; when is set
to ·0·, the programmed coordinates are assumed in radius.
This variable affects the display of the real value of the X axis in the coordinate system of the part
and the reading of variables PPOSX, TPOSX and POSX.
On power-up, after executing an M02 or M30 and after an emergency or a reset, the variable is
initialized according to the value of the DFORMAT parameter of the X axis. If this parameter has
a value equal to or greater than 4, the variable takes a value of 1; otherwise, it takes the value of ·0·.
PRBMOD
It indicates whether a probing error is to issued or not in the following cases, even if general machine
parameter PROBERR (P119) =YES.
• When a G75 probing move finishes before the probe has touched part.
• When a G76 probing move finishes but the probe is still touching the part.
The PRBMOD variable takes the following values.
The PRBMOD variable can be read and written from the CNC and the PLC an read from the DNC.
DISABMOD
This variable is used to disable some actions or modes by setting the corresponding bit value to
1. This variable may be written from the PLC and read from the PLC, DNC and CNC.
The following table shows the meaning of each bit:
CYCCHORDERR
This variable defines the chordal error of the canned cycles. It may be read and written from the
part-program.
The CYCCHORDERR variable lets modify the chordal error of the cycles so the user can increase
or decrease it for the parts as needed.
Using this variable is necessary, for example, on parts with curved areas using the 3D pocket cycle.
On these parts, if the radius is very large, the segments are noticeable. The parts get better by
decreasing the chordal error.
Using this variable, the user can decrease the chordal error on the part as needed. Decreasing the
chordal error can increase machining time.
Once the value of this variable has been changed, it remains active until the CNC is turned off.
Default value of the CYCCHORDERR variable (250 tenths of a micron).
Value Meaning
0 An error message is issued.
1 No error message is issued.
Default value 0.
Bit Meaning
0 If 1, the PLC program cannot be displayed. The PLC in ladder (contacts) diagram cannot
be displayed either.
1 If 1, the date cannot be changed, although it displays the access softkey. It is valid for
the explorer and for "UTILITIES".
2 If 1, the passwords cannot be changed. The passwords cannot be seen or changed
although it displays the access softkey. It is valid for the explorer and for "UTILITIES".
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