Acu-Rite CNC 3500i user manual Modifiers, Block Separators, Modifier Function, 387

Modifiers

Use modifiers to alter the way the 3500i interprets a word address. For example, a single value in an Inch Mode program may be forced to Metric Mode, without programming G71. Or, arc center values (I, J, or K) may be forced to an absolute value.

The address and modifier must be accompanied by an ampersand

(&). Place the ampersand (&) between the address word to be modified and the modifier. The address word is programmed first, followed by &, followed by the modifier, followed by the value.

The modifier is non-modal and is applied only to the address word it accompanies.

The following available modifiers are listed.

Modifier	Function
A	Force the address word to be in Absolute Mode.
D	Force the address word to be in Incremental Mode.
E	Force the address word to be in Inch Mode.
M	Force the address word to be in Millimeter Mode.

Example: G02 X2.0 Y1.0 I&A1.5 J&A1.0

The example forces the I and J center of an arc to be in Absolute Mode. I and J are incremental by default. Assume the axes are at X1 Y1.

Block Separators

Block separators (;) can be used to place several functions on one line of a program. This is useful in Manual Data Input (MDI) Mode because you can combine several commands on one line at the command line.

The number of separate steps in a program is limited only by the available memory. Block separators can also be used in programs.

Example 1 executes five moves on the machine when you touch Start. Each move is separated by the (;) block separator.

Example 1: G90 G01 X0 Y0 F30 ; X3 ; Y-2 ; X0 ; Y0

Example 2 moves the axes linearly to X0 Y0, then CW to X1 Y1, then linearly to X2.

Example 2: G90 G01 X0 Y0 F10 ; G02 X1 Y1 I1 J0 F8 ; G01 X2

11.4 Advanced Programming

ACU-RITE 3500i 387