Punched tape variable block format for contouring and contouring/positioning numerically controlled machine tools

This document specifies a variable program segment format designed for computer numerical control machines utilizing punched tape. The technical requirements focus on controlling contours and the positioning of those contours within the machining process. It establishes a structured approach for encoding operational commands, ensuring compatibility and interoperability across different systems that process data from perforated tape media. The standard defines the syntax and logical organization necessary for representing geometric paths and control sequences. By standardizing these formats, it facilitates the exchange of machining instructions and supports the automation of manufacturing operations. The content addresses the specific needs of contour processing and precise location control, providing a framework for consistent data representation. This specification serves as a technical reference for developing and operating numerical control equipment, allowing for the efficient execution of complex machining tasks through standardized tape formats without deviation in the interpretation of control signals.