Chapter 7
101
UM10372_PCNC440_Manual_0221A
PROgRAMMiNg
Input is not case sensive, except in comments, therefore any leer outside a comment may be in
uppercase or lowercase without changing the meaning of a line.
Block Delete Character
The operang system omits blocks of code that are prexed with the forward slash symbol (/).
Line Number
A line number is indicated by the leer N followed by an integer (with no sign) between 0 and
99,999,999 and wrien without commas.
Line numbers may be repeated or used out of order, although normal pracce is to avoid such
usage. A line number is not required and oen omied.
Word
A word is a leer other than N or O followed by a real value. Words may begin with any of the leers
shown in the table below. The table includes N and O for completeness, even though, as dened
above, line numbers are not words. Several leers (I, J, K, L, P and R) may have dierent meanings
in dierent contexts.
Word Inial Leers
Letter Meaning
A A-axis of mill
B B-axis of mill
C C-axis of mill
D Tool radius compensaon number
F Feed rate
G General funcon
H Tool length oset index
I
X-axis oset for arcs
X oset in G87 canned cycle
J
Y-axis oset for arcs
Y oset in G87 canned cycle
K
Z-axis oset for arcs
Z oset in G87 canned cycle
L
Number of repeons in canned cycles/subrounes
Key used with G10
M Miscellaneous funcon
N Line number
O Subroune label number