Attribute: Limit Values (Lli, Uli) - Siemens SINUMERIK 840D sl Programming Manual

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 (
which the system variable is reinitialized.
Implicit initialization value: AXIS data type
For variables of the
● System data: "First geometry axis"
● Synchronized action 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
Note
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.
See also
Variables (Page 17)
1.1.7

Attribute: Limit values (LLI, ULI)

An upper and a lower limit of the definition range can only be defined for the following data
types:
● INT
● REAL
● CHAR
Definition (DEF) of user variables: Limit values and implicit initialization values
If no explicit initialization value is defined when defining a user variable of one of the above
data types, the variable is set to the data type's implicit initialization value.
● INT: 0
● REAL: 0.0
● CHAR: 0
Job Planning
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
data type the following implicit initialization value is used:
AXIS
Axis identifier from machine data: MD20082 $MC_AXCONF_CHANAX_DEFAULT_NAME
Flexible NC programming
1.1 Variables
, ) at
INIRE INICF
35