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422 11 G-Code Edit, Help, & Advanced Features
11.4 Advanced Programming
If the expression is true, the program continues at N410, then to N440,
where a jump is made to N480.
If the expression is false, the 3500i skips Blocks N410 to N440 and
executes Blocks N450 to N470. In place of an expression, you can use
a variable that while not zero is treated as a true expression. (Zero
equals false. Any other value equals true).
IF - GOTO
N500 IF (expression) ) GOTO nnnn
N510 ------------
If the expression is true, the program jumps to the block number
specified (nnn). If the expression is false, the program continues at
Block N510. In place of an expression a variable can be used which
while not zero is treated as a true expression. (Zero equals false. Any
other value equals true).
WHILE - DO - END
N550 IF (expression) DO nnnn
N560 ------------
-- --
-- --
-- --
-- --
N590 ENDIF
N600 ------------
If the expression is true, the program repeats between N550 and
N590 until the expression becomes false. Similarly, if the expression
is false when Block N550 is executed, the 3500i jumps to Block N600.
The number after DO is a label (identifier only) and the same number
must be used to identify the END of the loop.
When you program IF-GOTO statements do not precede
the block number with the character "N".
For example, IF-GOTO 487 skips to block number N487.