Redefinition Of System Variables, User Variables, And Nc Language Commands (Redef) - Siemens SINUMERIK 828D Programming Manual

Flexible NC programming
1.1 Variables
1.1.6 Redefinition of system variables, user variables, and NC language commands
(REDEF)
Function
The
command attributes. A fundamental condition of redefinition is that it has to post-date the
corresponding definition.
Multiple attributes cannot be changed simultaneously during redefinition. A separate
operation has to be programmed for each attribute to be changed.
If two or more concurrent attribute changes are programmed, the last change is always
active.
Redefinable attributes
See "Overview of definable and redefinable attributes (Page 45)".
Local user variables (PUD/LUD)
Redefinitions are not permitted for local user variables (PUD/LUD).
Syntax
REDEF <name> <PP_stop>
REDEF <name> <phys_unit>
REDEF <name> <limit_values>
REDEF <name> <access_rights>
REDEF <name> <init_time>
REDEF <name> <init_time> <init_value>
Significance
REDEF
<name>
<PP stop>
<phys_unit>
30
command can be used to change system variable, user variable and NC language
REDEF
: Command for the redefinition of a specific system variable, user
variable, and NC language command attribute
: Name of a predefined variable or an NC language command
: Preprocessing stop
SYNR
SYNW
SYNRW
: Physical unit
PHU
See "Attribute: Physical unit (PHU) (Page 38)"
Note
Cannot be redefined for:
• System variables
• Global user data (GUD)
• Data types:
: Preprocessing stop while reading
: Preprocessing stop while writing
: Preprocessing stop while reading/writing
<unit>:
, ,
BOOL AXIS STRING
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
,
FRAME
REDEF
Job planning