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SECTION FIVE - MISCELLANEOUS FUNCTIONS (M CODES)

Subprogram execution

A subprogram is executed when called by the main program or another subprogram. A

subprogram call has the following format.

M98 PXXXX LXXX

Where PXXXX = subprogram number

And LXXX = number of times the subprogram is to be

repeated

Example: M98 P0002 L5

M98 P2 L5

Call 2 L5

This command reads, call subprogram number 2 five times.

When the loop number is omitted, the subprogram is run once.

A subprogram call command and move command can be specified in the same block.

Example: X1 M98 P0200

In this example the subprogram 200 is called after completing movement in the X axis direction.

The execution sequence of a main program which calls a subprogram is as follows.

When the subprogram is called by another subprogram, it is executed in the same sequence as

shown in the above example.

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