Basic Knowledge of NC macro program

1. The H code of FANUC—0M macro program

Macro standard format: G65 Hm P#i Q#j R#k

2. The format of FANUC—18M macro program

1. Types of variables:

2. Non-modal call macro program:

The standard format of the program: G65 P (macro program number) L (number of repetitions) <specified argument value>

Note: The standard format of G65 must be rewritten every time it is called, and it will be cancelled automatically after use.

3. Modal call macro program:

The standard format of the program: G66 P (macro program number) L (number of repetitions) <specified argument value>

Note: Input parameter value directly without specifying G66.

4. About the parameter assignment in G65 and G66

⑴. Correspondence between the address of parameter assignment Ⅰ and the variable number:

⑵. Correspondence between the address of parameter assignment Ⅱ and the variable number:

5. Regarding the arithmetic and logical operations in G65 and G66:

6. The modal call of G67 macro program cancels the macro program.

7. The macro program can be called in the format of G××　 <specified parameter value>:

Description: ①The program number uses O9010~O9019;

②Set the parameter corresponding to the program number to the value of G code;

③The calling form is: G (parameter setting value) <specified parameter value>.

The main body number of the macro program and the corresponding parameter number:

8. Conditional transfer instructions:

3. The format of the SIEMENS macro program

1. Calculate the parameter R:

R0—R99 —— can be used freely;

R100R249 ——Machining cycle transfer parameters;

R250—R299—Internal calculation parameters used for processing cycle transmission.

Calculation: Follow the usual rules of mathematical operations, priority in parentheses, priority in multiplication and division, and addition and subtraction.

For example: R15=SQRT(R1*R1+R2*R2); meaning: R15=(R1^2+R2^2)^1/2;

N10 Z=R3 means Z assignment; the rest is the same as 18M.

2. Conditional jump:

⑴. Standard format: IF condition GoToF Label jump forward

IF condition GoToB Label jump backward

Among them: label (Label): the two characters starting with 2-8 letters or numbers must be letters or underscores.

The jump target identifier must be followed by a colon.

⑵. Comparison operation:

3. Arithmetic:

Fourth, the format of the SIEMENS programming language