WEIHONG ELECTRONIC Ncstudio, Programming Manual

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上海维宏电子科技股份有限公司
Weihong Electronic Technology Co., Ltd.
Specialized, Concentrated, Focused 5
3 Structure of Machining File
A machining file is a group of instructions and data transmitted to the CNC device, and it is
composed of program blocks which follow a certain structure, syntax and format rule, while each
program block is composed of command words. See Fig. 3-1.
N01 G91 G00 X50 Y60
N10 G01 X100 Y500 F150 S300 M03
N
……
N200 M02
Program
block
Command
word
Fig. 3-1 Program Structure
3.1 Address Symbols and Functions
Address symbols and definitions are as shown in Form 3-1.
Form 3-1 Address Symbols
Address
Symbol
Description
B: Basic Function
O: Optional Function
D Cutter radius offset number B, O
F Feedrate function B
G Preparatory commands B, O
H Tool length offset B
I Arc center modifier for X axis B, O
J Arc center modifier for Y axis B, O
K Arc center modifier for Z axis B
L Repetition count B, O
M Miscellaneous function B
N Sequence no. or block no. B
O Program no. B
P
Dwell time in milliseconds, subprogram no.
call, custom macro no. call, block number in
main program when used with M99
O, B
Q
Depth of peck in fixed cycles G73 and G83
Shift amount in fixed cycle G76 and G87
O
R Retract point in fixed cycles O, B