System information

SECTION FOUR - PREPARATORY FUNCTIONS (G CODES)
These codes are used if the operator is programming the Centurion 6 in the text mode or MDI
mode. They are also generated from conversational programs. It should be noted that most
programmers, particularly new programmers, use the conversational programming mode. If you
are planning to use text mode of programming, pay close attention to this section for it explains
these codes. If you are planning to use conversational mode of programming, you can skim this
section and concentrate on the conversational section.
The preparatory function code is a two-digit number preceded by the letter G. Preparatory
functions are used to determine the program operating mode and are divided into two types: one-
shot and modal. One-shot G codes are only in effect during execution of the block in which they
are present. Modal G codes establish operating modes, which remain in effect until replaced by
another mode in the same category.
The following table lists G codes accepted by the Centurion 6 control system. Each code will
have a detailed explanation later in the manual.
G Codes
Active On
Power-up
Modal One Shot
00 Rapid Positioning X
01 Linear interpolation X X
02 Circular/helical interpolation CW X
03 Circular/helical interpolation CCW X
04 Dwell X
09 Exact stop X
10 Set data on X
11 Set data off X X
12 Clear floating zero X
17 XY plane X X
18 XZ or ZX plane X
19 YZ plane X
*
20 Inch input X X
*21 Metric input X
*22 Safe zone check on X
*23 Safe zone check off X X
24 Circular pocket clear X
191
*
G20, G21, G22 and G23 are selectable by parameters on power up.