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Standard Mode
Section 4-26
4.26.1 Variable List
The variable list contains the assignment of symbolic variable names to the desti-
nation hardware. Due to its design and proximity to the PLC, this file is always
manufacturer-specific.
In the programming software, the variable list is a part of the database.
The variable list contains only the required manufacturer-specific user description
parts. Its size is therefore small in relation to the entire project. A project can be
quickly adapted to other PLC specifications by simply adapting the variable list to
the PLC to be used.
A variable list can be created in the programming system in two ways.
First method:
As a variable is defined in a mask (with or without address information) it is entered
into the variable list at the same time.
Second Method:
The first step can be to define the entries in the variable list or alternatively to insert
them from any suitable program via the clipboard. The entries will immediately be
available in the programming software on a global basis.
Third Method:
The elements of the variable list are imported from a Siemens SEQ file or a Bosch
SXS file. Only the relevant data of the import files will be extracted and inserted into
the variable list.
4.27
Application Programming
The operating concept is based on a mask structure that can be created by the user
in accordance with the requirements and on system variables that can influence
important functions in the operating terminal. Various types of masks are available
to facilitate the creation of solutions for standard tasks.
Every mask structure initially consists of 4 types of masks whose contents are
user-configurable.
Any I/O mask can be programmed as a system mask.
-
Setup mask
-
Start mask
-
Password mask
-
Main mask
After being switched on, the operating terminal is initialized and displays the startup
mask during this process. The setup mask can be called up by pressing the Enter
key while the startup mask is displayed. The setup mask can be exited by pressing
the Enter key again and the startup mask will reappear.
The next mask of the operating guidance that is displayed is the Main Mask which
represents the first mask of the user-programmed operator guidance. A menu with
menu items is normally set up in the main mask to allow selection of lower-level
masks. The user has the option of specifying a full-page help text for every mask
which can be displayed by the operator with the Help key.
Summary of Contents for NT15S
Page 1: ...Cat No V056 E1 1 Programmable Terminal NT4S NT15S NT18S OPERATION MANUAL ...
Page 2: ...ii ...
Page 3: ...iii NT4S NT15S NT18S Programmable Terminal Operation Manual Produced March 1999 ...
Page 4: ...iv ...
Page 6: ...vi ...
Page 14: ...xiv ...
Page 26: ...12 The Terminals of the NT Series Section 1 2 1 2 4 1 2 NT4S SF122B E 1 2 4 1 3 NT4S SF123B E ...
Page 37: ...23 The Terminals of the NT Series Section 1 4 1 4 1 3 NT4S SF123B E 1 4 1 4 NT15S SF121B E ...
Page 54: ...40 The Terminals of the NT Series Section 1 7 1 7 6 3 ASCII Character Set Table ...
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