Coordinate System; Basic Machine Coordinate System; Work Coordinate System - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

When a decimal point is not used at an address where decimal point command are valid, the last digit of the
command data matches with the command unit.
(Example)
When "X1" is specified, the command is equivalent to "X0.0001".
5.5

Coordinate System

This section describes the coordinate systems.
The coordinate home position symbols that indicate the coordinate systems are shown below.
Y
Y
Y
Local
coordinates
Work coordinate
system 1
Basic machine
coordinate system
Coordinate home position symbol

Basic machine coordinate system

This is a coordinate system specific to the machine, and is used to indicate positions specifically determined by the machine
(tool exchange position, stroke end position etc.).
The tool is moved to the command position on the machine coordinate system by the G53 command and the coordinate
command that follows.
Only the G53 command and coordinate commands in the same block are commands to the machine coordinate system.

Work coordinate system

The work coordinate system is used when creating a G-code program and sets the base point on the work as the coordinate
home position. The work coordinate system specifies positions with an offset amount from the basic machine coordinate
system. The set offset amount is the distance from the machine coordinate system home position (0). Up to six work
coordinate systems (work coordinate 1 to 6) can be set. They are set in the G-code control work parameter "Workpiece
coordinate offset", or work coordinate system 1 selection (G54) to work coordinate system 6 selection (G59).
Y
Y
Y
X
Work coordinate
X
system 2
Local coordinates
X
Name
Machine coordinate home position
Work coordinate home position
Local coordinate home position
Y
X
Local
coordinates
X
Local coordinates
X
Description
Position specifically determined by the machine
Home position of the coordinate system used for processing work
Home position of the coordinate system when the work coordinate system
is temporarily changed.
5 G-CODE CONTROL PROGRAMS
X
5.5 Coordinate System
5
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