Omron CS1W-MC221 -, Operation Manual

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Overview of G-language Programs in the MC Unit Section 1-7
Example Program The following diagram shows the format of a basic G-language program.
Block Numbers Programs are composed of blocks, which are distinguished by block numbers
N000 through N999. Block numbers are equivalent to the program’s line num-
bers.
Always declare the program number and axis in block number N000 (
A
).
Program Numbers Program numbers range from P000 through P499. The program shown above
begins with block number N000 (
A
) and ends with the block (N004) that con-
tains the program end command, G79.
Subroutines have program numbers ranging from P500 through P999, and
end with a subroutine end command, G73.
The number of blocks and number of programs are the total numbers of
blocks and programs being used. A maximum of 100 programs and 2,000
blocks can be used in the MC Unit. A maximum of 800 blocks can be used in
any one program.
G-language Codes Code G00 in line
C
is a G-language code representing the PTP control posi-
tioning function.
Arguments Positions are input as arguments. In this example “X100” has been input to
indicate 100 on the X-axis.
The next argument, “M100,” outputs M-code 100 when the positioning to X100
has been completed.
Some commands, such as G90 in line
B
, don’t require arguments. The abso-
lute specification command (G90) indicates that coordinates are to be treated
as absolute coordinates.
Format The following table explains the contents of the MC program.
N000 P001 X
A
Axis being used.
Program number (P000 to P499)
Block number (N000 to N999)
Parameters
G-language code
N001 G90
B
N002 G00 X100 M100
C
Program end command
N003 G26 X
D
N004 G79
E
Line MC program blocks Function
A
N000 P001 X Declares program number (001) and the axis being
used (X).
B
N001 G90 Specifies positioning by absolute coordinates.
C
N002 G00 X100 M100 Moves to X-axis coordinate 100. Outputs M-code
100 when positioning is completed.
Executed the next block with the M Code Reset
Command from the CPU Unit.
D
N003 G26 X Returns to the reference origin.
E
N004 G79 Ends the MC program.