Expanding the Operator Interface (BE1) 08/2005
3 Syntax
© Siemens AG, 2005. All rights reserved
BE1/3-60 SINUMERIK 840D sl/840D/840Di/810D HMI Installation and Start-Up Guide (IAM) – 08/2005 Edition
System or OPI variables
The variables should be PLC or NC variables.
The system or user variable appears in double quotation
marks
See Section 8.4 "List of accessible system variables" and also
References /PGA 1/ "Lists of System Variables". Indexed
variables are usually used for table elements. The increments
to be used to accumulate each index in order to fill the column
are specified in the assigned offset parameter.
Column width Column width in pixels
Offset1 Step width for the 1st index
Offset2 Step width for the 2nd index
Offset3 Step width for the 3rd index
For PLC or NC variables, the index number is of significance with one or several
indices. Only those variables with index are sensibly represented as grid.
Modifying column properties
The column properties, which can be modified dynamically (written) are:
Limit values (min,max),
Column header (st),
Attributes (wr, ac and li),
Help display (hlp) and
OPI variable (var).
Column properties are modified via the variable identifier in the definition list or via
the column index (starting at 1).
Example:
Var1[1].st="Column 1"
Column properties cannot be read in the Load block.
The wr, ac and li attributes can be specified for column definitions.
See Subsection 3.3.3 "Screen form elements"
Column header from text file
The column header can be entered as text or text numbers ($8xxxx) and is not
scrolled.
String variable
If the variable is a string type variable, the string length must be specified in Type.
Example for a user variable:
DEF CHAN string [16] TEXT[41]
The column definition for the CHAN variable therefore starts, e.g., (S16/...
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