Programming manual
CNC 8055
CNC 8055i
HIGH-LEVEL LANGUAGE PROGRAMMING
13.
·M· & ·EN· MODELS
SOFT: V02.2X
·343·
Variables
PTOOL
Returns the magazine position to where the current tool is to be left. It matches the value that will
be received later on in the register "T2BCD" (R559) with the M6, but the latter will be in BCD format.
This variable is only accessible via the CNC.
PNXTOOL
Returns the magazine position from where the next tool is to be picked up. It matches the value that
will be received later on in the register "TBCD" (R558) with the M6, but the latter will be in BCD format.
This variable is only accessible via the CNC.
HTOR
The HTOR variable indicates the tool radius being used by the CNC to do the calculations.
Being a variable that can be read and written by the CNC and read-only from the PLC and DNC,
its value may be different from the one assigned in the table (TOR).
On power-up, after a T function, after a RESET or after an M30 function, it assumes the value of
the table (TOR).
Application example
To machine a profile with a residual stock of 0.5 mm running 0.1mm-passes with a tool whose radius
is 10 mm.
Assign to the tool radius the value of:
10.5 mm in the table and execute the profile.
10.4 mm in the table and execute the profile.
10.3 mm in the table and execute the profile.
10.2 mm in the table and execute the profile.
10.1 mm in the table and execute the profile.
10.0 mm in the table and execute the profile.
However, if while machining, the program is interrupted or a reset occurs, the table assumes the
radius value assigned in that instant (e.g.: 10.2 mm). Its value has changed.
To avoid this, instead of modifying the tool radius in the (TOR) table, use the variable (HTOR) to
change the tool radius value used by the CNC to calculate.
Now, if the program is interrupted, the tool radius value initially assigned in the (TOR) table will be
correct because it has not changed.
Read-and-write variables
TORn
This variable allows the value assigned to the radius of the indicated tool offset (n) in the tool offset
table to be read or modified.
TOLn
This variable allows the value assigned to the length of the indicated tool offset (n) to be read or
modified in the tool offset table.
TOIn
This variable allows the value assigned to the wear in radius (I) of the indicated tool offset (n) to be
read or modified in the tool offset table.
(P110=TOR3)
Assigns the radius value of tool offset ·3· to parameter P110.
(TOR3=P111)
Assigns the value indicated in parameter P111 to the radius of tool offset 3.
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