External Machine Coordinate System Compensation - Mitsubishi Electric MELDAS C6 Programming Manual

11.6 External Machine Coordinate System Compensation

11.6 External Machine Coordinate System Compensation
External machine coordinate system compensation is executed by setting compensation data
(absolute amount) in the PLC file register (R) for each axis.
Thus, the compensation timing is when PLC rewrites file register (R) compensation data. Necessary
condition, timing, etc., are set by user PLC.
The interface between user PLC and CNC is shown below.
File
register
R2300
R2350
R2400
R2450
R2500
R2550
R2600
Data in file registers (R2300 to R2950) is not backed up. If it must be backed up, use back-up file
registers (R6400 to R7199).
(Note 1) The maximum delay to compensation is (one user PLC scan + 15ms). However, smoothing
time constant and servo follow delay are not contained.
11. PLC Help Function
Contents
Compensation data for
the 1st axis
Compensation data for
the 2nd axis
Compensation data for
the 3rd axis
Compensation data for
the 4th axis
Compensation data for
the 5th axis
Compensation data for
the 6th axis
Compensation data for
the 7th axis
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File
Contents
register
Compensation data for
R2650
the 8 th axis
Compensation data for
R2700
the 9 th axis
Compensation data for
R2750
the 9 th axis
Compensation data for
R2800
the 11th axis
Compensation data for
R2850
the 12th axis
Compensation data for
R2900
the 13th axis
Compensation data for
R2950
the 14th axis