Siemens SINUMERIK 840D sl Programming Manual page 37

Initialization value: CHAR data type
For variables of the CHAR data type, instead of the ASCII code (0 to 255), the corresponding
ASCII character can be programmed in quotation marks, e.g. "A".
Initialization value: STRING data type
In the case of variables of the STRING data type, the character string must be enclosed in
quotation marks, e.g. ...= "MASCHINE_1"
Initialization value: AXIS data type
In the case of variables of the AXIS data type, for extended address notation, the axis
identifier must be enclosed in brackets, e.g. ...=(X3).
Initialization value: System variable
For system variables, redefinition cannot be used to define user-specific initialization values.
The initialization values for the system variables are specified by the system and cannot be
changed. However, redefinition can be used to change the point in time (INIRE, INICF) at
which the system variable is reinitialized.
Implicit initialization value: AXIS data type
For variables of the AXIS data type the following implicit initialization value is used:
● System data: "First geometry axis"
● Synchronization GUD (designation: SYG_A*), PUD, LUD:
Implicit initialization value: Tool and magazine data
Initialization values for tool and magazine data can be defined using the following machine
data: MD17520 $MN_TOOL_DEFAULT_DATA_MASK
NOTICE
Synchronization
The synchronization of events triggering the reinitialization of a global variable when this
variable is read in a different location is the sole responsibility of the user/machine
manufacturer.
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
Axis identifier from machine data: MD20082 $MC_AXCONF_CHANAX_DEFAULT_NAME
Flexible NC programming
1.1 Variables
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