Each designation in the CNC program has a certain fixed format. The format of the controller is different. Therefore, instructions must be written according to the controller's instruction format. If the format is wrong, the program will not be executed and the program will not be executed. Alert message.
Especially care should be taken when entering numerical data. General CNC milling or MC can choose to use metric units "mm" or imperial units "inch" as the unit of coordinate values. The metric system can be accurate to 0.001mm, and the inch system can be accurate to 0.0001 inch, which is also the minimum amount of movement of general CNC machines. If you enter X1.23456, the actual input value is X1.234mm or X1.2345 inches, and the extra value is ignored. And the number of words can not be too much, generally limited to 7 words, such as the input X1.2345678, due to more than 7 words, there will be a warning message, Table 1 is the address and command value range.
The listed in Table 1 is the range of instructions that the computer can accept, and the actual scope of use of the CNC machine tool is limited by the machine itself, so it should refer to the CNC machine tool's operating manual. For example, in Table 1, the X axis can be moved ± 99999.999mm, but actually the travel of the X axis of the CNC machine tool may only be 650mm, and the feed rate F may be input as 100000.0mm∕ min. However, the actual CNC machine tool may be limited to 3000mm∕min. the following. Therefore, during the production of the program, it is necessary to determine the actual limit of CNC machine tool specifications, so it must refer to the instructions issued by the CNC machine tool manufacturer.
Table 1 Address and Command Range (FANUC 0M)
function
Address
Metric units
Imperial units
Program number
: (ISO) O (EIA)
1-9999
1-9999
Sequence number
N
1-9999
1-9999
Prepare the function
G
0-99
0-99
Axis word
X, Y, Z, Q, R, I, J, K
±99999.999mm
±9999.9999inch
A, B, C
±99999.999deg
±9999.9999deg
Feed function
F
1-100000.0mm/min
0.01-400.0inch/min
Spindle speed function
S
0-9999
0-9999
Tool function
T
0-99
0-99
Auxiliary function
M
0-99
0-99
Stay
X, P
0-99999.999sec
0-99999.999sec
Subprogram number designation
P
1-9999
1-9999
repeat times
L
1-9999
1-9999
Correction number
D, H
0-32
0-32
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