Siemens SINUMERIK 840D sl Commissioning Manual page 50

Expanding the Operator Interface (BE1)
3 Syntax
Identifier.vld
where:
Identifier
The result of the scan can be:
FALSE = invalid value
TRUE = valid value
IF VAR1.VLD == FALSE
VAR1 = 84
ENDIF
Variable: Changing properties
Using the notation:
Identifier.property = value
to change a property assigns a new value to the variable. Examples:
Identifier.min = MIN limit value
Identifier.max = MAX limit value
Identifier.lt = Long text
Identifier.st = Short text
Identifier.gt = Graphics text
Identifier.ut = Unit text
Identifier.wr = Input mode
Identifier.ac = Access level
Identifier.al = Alignment of screen form text
Identifier.fs = Font size
Identifier.li = Limit
Identifier.hlp = Help display
Identifier.var = System or user variable
Identifier.fc = Foreground color
Identifier.bc = Background color
Identifier.htx = Help file, index, help text
Identifier.val = Variable value
Identifier.vld = Variable status
The possible properties are described in Subsection 3.3.3.
The expression on the right of the equals sign is evaluated and assigned to the
variable or variable property.
Changing the softkey label
HS3.st = "New Text"
Addressing system variables indirectly
A system variable can also be addressed indirectly, i.e., as a function of another
variable.
PRESS(HS1)
AXIS=AXIS+1
WEG.VAR="$AA_DTBW["<<AXIS<<"]"
;address axis address via variable
END_PRESS
BE1/3-44
SINUMERIK 840D sl/840D/840Di/810D HMI Installation and Start-Up Guide (IAM) – 08/2005 Edition
Name of variable
;Change softkey label
© Siemens AG, 2005. All rights reserved
08/2005