Acu-Rite CNC 3500i user manual User Variables

11.4 Advanced Programming

User Variables

Certain variables are set aside for the programmer to use. These may be useful when programming macros. You can read from or write to these variables. They are divided into four categories:

Local variables: #1 to #99:These variable numbers can be used only within the body of a sub-program (or macro). The 3500i generates an error message if you program these variables in the main program. Values do not hold from one sub-program to another. In this way, the same variables can be used in separate sub-programs, with different values.

Common (global) variables: #100 to #219. (Read/Write): These variables can be used anywhere in the program or sub-program and their value remains.

Read only variables: #220 to #249: These variables can only be set in the main program. Once set, the variables can be used in sub-programs or macros as "read only" variables.

Static (global) variables: #260 to #279. (Read/Write): These variables can be used anywhere in the program or sub-program and their value remains across shutdowns or software resets.

OEM and machine tool builders should use #100-#150 and #260-#269 for any custom macros. End users should use #151-#220 and #270-#279 for your custom macros. This avoids conflicting usage of the global variables.

396 11 G-Code Edit, Help, & Advanced Features