
1.MANUAL GUIDE 0i MANUAL GUIDE 0i B-63844EN/02
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1.3.5 G-code Assistance
Now that we have added process information to the part program,
machine tool movement is usually needed to complete the machining
operation. Machine tool movement is performed using interpolations
that control the movement of the tool between the specified points.
We first need to establish a coordinate system that the CNC will use
to determine axis movement. If we know the G-codes needed to set
the CNC coordinate system, we could simply use the editor to add the
necessary information. But in the case of our example, we are not sure
of the correct G-Code.
To access the “G-Code Assistance” press the “G CODE” soft-key on
the display unit. This will display the G-Code help menu. The G-code
help menu lists all of the G-codes supported by your control system.
The menu is divided into several pages. The total number of help
pages and the current page appear at the top of the menu.
The user can use the cursor page keys on the MDI key panel to
control the display of the G-code help pages. The menu screens are of
rollover-type. That is, attempting to advance past the last page will
return to the first page. Conversely, attempting to back up beyond the
first page will bring the user to the last page.
Since we are looking for coordinate setting information we will
proceed to advance through the menu system until we see something
that pertains to this topic. If we advance to the last page, we see that
G92 is used for setting the work coordinate system. By typing in “92”
and pressing the “INPUT” key on the MDI key panel, the help
information for G92 is displayed. The user will notice there are two
soft-keys displayed at the bottom of the page. These two soft-keys
control the information that is displayed about this topic.
G CODE HELP 1 OF 7
G00 RAPID MOVE
G01 LINEAR MOVE
G02 CW CIRCLE
G03 CCW CIRCLE
G04 DWELL
G08 LOOK AHEAD CONTROL
G09 EXACT STOP
G17 XY PLANE SELECT
G18 XZ PLANE SELECT
PAGE KEYS FOR MORE
NUM=
INPUT 17 FOR G17 HELP
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