Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 302)

Introduction to Programming
Chapter 10
10-24
Example 10.9
Programming Modal G codes
G00 X1. Z2.; G00 mode is effective
Z3. ; G00 mode is effective
G01 X2. Z1. ; G01 mode is made effective
X3. Z3. ; G01 mode is in effect
G00 X1.Z2. ; G00 mode becomes effective again
G01 G00 Z3, ; G00 mode is in effect
G01 G91 Z2 ; G01 and G91 both in effect
An example of non-modal G-code execution follows:
Example 10.10
Programming Non-Modal G Codes
G00 X1. Z21 ; G00 mode is effective
G28 X2.; G28 mode, this block only
X2. Z1. ; G00 mode is effective
G04 P2. X4. ; G04 active followed by move in G00
Example 10.11
Changing Modes Mid-Block
N10G90X10G91Y10; X10 is absolute (G90) Y10 is incremental (G91)
N20X20; X20 is incremental (G91)
N30X30G90Y10; X30 is incremental (G91), Y10 is absolute (G90)
Table 10.E breaks down the G codes into their groups. For example, G
codes in group 01 are modal only with other G codes in group 01. G codes
in the 00 group are non-modal and are effective only in the block in which
they are programmed.