Photo Plotter Codes
The standard for photo plotter data is the Gerber format,
or RS-274D. Different code types are used by the plotter to
perform different tasks. However, the format of the codes is
the same - a letter followed by a numerical value. The
different code types used are:
These codes are also summarized in the following table.
| Code |
Description |
| * |
End of Block (end of command) |
| D |
Select aperture, or set aperture use mode |
| X |
Move to X value |
| Y |
Move to Y value |
| G |
Various setup codes |
| M |
Various control codes |
| I |
Relative X location for arc center |
| J |
Relative Y location for arc center |
|