Which coding scheme is used to issue instructions to CNC machines in textual form?

Which coding scheme is used to issue instructions to CNC machines in textual form?

• A. ASCII
• B. Binary Code
• C. G Code
• D. M Code

Answer: (C)

How CNC machines are controlled with a textual command language. G Code is the standard textual language used to drive CNC machines. In G-Code, you write commands that tell the tool where to move (G commands), at what path or speed (coordinates and feed rates), and when to perform actions like turning the spindle on or off or controlling coolant (M commands). Because it’s plain text, programmers can create, read, and edit these instructions easily in CAM software or text editors, and the machine controller reads and executes them to generate the desired toolpaths. The other options don’t fit as the instruction scheme: ASCII is just a way to encode characters, not a machine’s instruction set; Binary Code is binary data, not meant to be written and edited by humans for tooling; M Code is a subset of G-Code used for specific auxiliary functions rather than the complete set of motion and operation commands.

How CNC machines are controlled with a textual command language. G Code is the standard textual language used to drive CNC machines. In G-Code, you write commands that tell the tool where to move (G commands), at what path or speed (coordinates and feed rates), and when to perform actions like turning the spindle on or off or controlling coolant (M commands). Because it’s plain text, programmers can create, read, and edit these instructions easily in CAM software or text editors, and the machine controller reads and executes them to generate the desired toolpaths. The other options don’t fit as the instruction scheme: ASCII is just a way to encode characters, not a machine’s instruction set; Binary Code is binary data, not meant to be written and edited by humans for tooling; M Code is a subset of G-Code used for specific auxiliary functions rather than the complete set of motion and operation commands.