Which code provides the reference name or title for a program block in a part program?

Which code provides the reference name or title for a program block in a part program?

• A. N code
• B. G code
• C. Address
• D. Coordinate code

Answer: (A)

Line numbers serve to identify and reference each program block. The N code is the tag that labels a block in the program listing, providing a convenient reference for editing, tracing, and calling blocks. It doesn’t perform a machining action itself. G codes control the motion or function, coordinate words (like X, Y, Z) specify positions, and other addresses set parameters, but none of those label the block. So the N code is the one that provides the reference name or title for a program block.

Line numbers serve to identify and reference each program block. The N code is the tag that labels a block in the program listing, providing a convenient reference for editing, tracing, and calling blocks. It doesn’t perform a machining action itself. G codes control the motion or function, coordinate words (like X, Y, Z) specify positions, and other addresses set parameters, but none of those label the block. So the N code is the one that provides the reference name or title for a program block.