Example. Pdf

Discrete
Used to represent 2-state conditions of either 0 (False, Off) or 1 (True, On).
Integer
A 32-bit signed integer value between -2,147,483,648 and 2,147,483,647.
Real
A floating (decimal) point value between -3.4e38 and 3.4e38. All floating point calculations are
performed with 64-bit resolution, but the result is stored as a 32-bit value.
Message
A text string that can be up to 131 characters
InTouch tags fall into three main category types. Memory tags are primarily data variables local to
the machine running the InTouch 
WindowViewer
application. I/O tags act as ports that move
data to and from I/O servers and the running 
WindowViewer
application. The LNS DDE server
can be an I/O server. Indirect tags are used to perform pointer like operations to re-map tag data
sources.
Using InTouch, the developer has the option of creating the HMI visualization elements from simple
shapes, shapes grouped as cells that have one or more animation links, or using Wizards which are

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InTouch Example Description
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predefined widgets that speed development work but limit the object’s actions to a set of predefined
animation links. An animation link connects the value or a field of a tag to a specific behavior on the
screen.
InTouch also provides a number of different script types. A script is a sequence of function calls,
expressions, and simple control flow constructs that approximate a programming language
procedure. Scripts types differ by the events which trigger the scripts’ execution. For example,
there are scripts associated with window opening, closing, and periodic execution while the window
is open. Data change scripts fire when a tag value is changed. A condition script allows the
developer to cause a script to run based on a defined condition such as a tag value exceeding a
certain threshold level. The scripting features allow the HMI developer to implement part of the
control strategy on the PC.
InTouch uses additional attributes of tags to connect to alarming, event logging, historical trending,
and other key subsystems required in a full featured HMI application.