
APPENDIX 8 EXPLANATION OF TERMS
T function ..............
Function that specifies a tool or items related to it.
TH check ..............
Panty check for one character in a tape.
Tool offset ..............
To shift the tool in the direction parallel to the
controlled axis.
TV check . . . . . . . . . . . . . . .
Parity check for one block in a tape.
.
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Variable . . . . . . . . . . . . . . . . . Numeric part of a word to be assigned
variable is used in the custom macro.
later. A
Word . . . . . . . . . . . . . . . . . .
A collection of characters arranged in a certain order.
A word consists of an address and a numerical value.
Handled as one unit.
Work coordinate system
. . . . Cartesian coordinates to be fixed for a workpiece.
cf. machine coordinate system
Zero return
To move the machine along the specified control axis
to the machine origin.
Reference
JIS B0181-1986: Terms for NC machine tools
As16