Siemens Sinumerik 840D sl Programming Manual page 30

Flexible NC programming
1.1 Variables
General conditions
Global user variables (GUD)
In the context of the definition of global user variables (GUD), the following machine data has
to be taken into account:
No.
11140
18118
18120
18130
18140
18150
18660
18661
18662
18663
18664
18665
1)
For SINUMERIK 828D, MD can only be read!
Program-global user variables (PUD)
NOTICE
Visibility of program-local user variables (PUD)
Program-local user variables (PUD) defined in the main program will only be visible in
subprograms if the following machine data is set:
MD11120 $MN_LUD_EXTENDED_SCOPE = 1
If MD11120 = 0 the program-local user variables defined in the main program will only be
visible in the main program.
Cross-channel use of an NCK-global user variable of the AXIS data type
An NCK-global user variable of the AXIS data type initialized during definition in the data
block with an axis identifier can then only be used in other NC channels if the axis has the
same channel axis number in these channels.
30
Identifier: $MN_
GUD_AREA_ SAVE_TAB
1) MM_NUM_GUD_MODULES
MM_NUM_GUD_NAMES_NCK
1)
MM_NUM_GUD_NAMES_CHAN
1)
MM_NUM_GUD_NAMES_AXIS
1)
MM_GUD_VALUES_MEM
1)
MM_NUM_SYNACT_GUD_REAL
1)
1) MM_NUM_SYNACT_GUD_INT
1) MM_NUM_SYNACT_GUD_BOOL
MM_NUM_SYNACT_GUD_AXIS
1)
MM_NUM_SYNACT_GUD_CHAR
1)
MM_NUM_SYNACT_GUD_STRING
1)
Significance
Additional save for GUD blocks
Number of GUD files in the active file system
Number of global GUD names
Number of channel-spec. GUD names
Number of axis-spec. GUD names
Memory location for global GUD values
Number of configurable GUD of the REAL data
type
Number of configurable GUD of the INT data
type
Number of configurable GUD of the BOOL data
type
Number of configurable GUD of the AXIS data
type
Number of configurable GUD of the CHAR data
type
Number of configurable GUD of the STRING
data type
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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