Subprogram – Definition from CNC Dictionary

The brand name for Siemens numerical controls.The name of the organizational unit of Siemens that designs and manufacturers numerical controls.

Checking whether the total number of characters in a block (starting immediately after an end–of–block code and ending at the next end–of–block code) is even or odd.

Checking whether the total number of 1 bits in a character is even or odd.

Shifting a specified tool along the controlled axis.

A machine tool which does primarily turning, but which has live tooling (a spindle on the turret) for doing milling operations. From a software point of view, a turning center…

Offset value used by the tool length compensation, cutter compensation, and tool offset functions.

The part of a tool offset value used to compensate for tool wear.

Retracting a tool from the workpiece, allowing the tool to be exchanged during machining (if broken) or the state of machining to be checked, and subsequently repositioning the tool to…

CNC memory used to store tool offset values.

Number preceded by the H or D address to specify a tool offset value.

Manual operation in which a reference tool and the tool to be measured are pressed against a fixed point on the machine, one after the other, and the difference in length between…

Compensating for the difference in length between the tool assumed during programming and the tool to be used for actual machining.

Setting a forbidden area in the CNC for a tool, decelerating the tool to a stop, and issuing an alarm if the tool is about to enter the forbidden area.

See “Stored stroke check”

Stroke limit check performed before the movement specified in a block is started.

Here is a Fanuc subprogram example which shows, how cnc machinists can make their cnc programs easier to write and maintain by useing sub-programming method. CNC Sub Programs Sub-programming is…

;Main Program O777 G91 G28 Z0 M06 T01 M03 S1200 G90 G54 G43 H1 G00 X30 Y110 Z2 M98 P030888 (call subprog O888 three times) G28 Z0 M30 ;Subprogram O888…

As Haas subprogram commands M97 M98 are already briefly described with subprogram examples, read here Haas M97 Local Subprogram Call with CNC Program Example Haas M98 Subprogram Call with Basic…

CNC program example code to show how Fanuc G68 Coordinate rotation g-code can be used in a subprogram to take most benefit from it’s functionality. G68 Coordinate Rotation Example Main-program N5…

Selca G72 G73 Subprogram modal recall G72 Cancels subprogram modal recall (G73) G72 Cancels subprogram modal recall (G73) Programming G72 G73 Subprogram modal recall G73 Subprogram modal recall Programming G73…