Siemens SINUMERIK 840D sl Programming Manual page 787

Example: Read machine data array with and without index
The first element will be read for
R1=$MC_EXTERN_GCODE_RESET_VALUES
as previous, this corresponds to
R1=$MC_EXTERN_GCODE_RESET_VALUES[0]
or the first element will be read
R1=$MA_POSTCTRL_GAIN[X1]
The corresponds to as before
R1=$MA_POSTCTRL_GAIN[0, X1]
The first element in synchronized actions is also read for
WHEN TRUE DO $R1 = $MC_EXTERN_GCODE_RESET_VALUES
The corresponds to as before
WHEN TRUE DO $R1 = $MC_EXTERN_GCODE_RESET_VALUES[0]
and would previously not be read with alarm 12400.
The alarm 12400 will still be issued for
R1=$MA_POSTCTRL_GAIN
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
14.5 Function call ISVAR and read machine data array index
Additional functions
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