Process-Dependent Operator Guidance; Branching By Means Of Soft Keys - Siemens SIMATIC HMI OP3 Equipment Manual

Process-Dependent Operator Guidance

Soft keys and
Different actions are normally required or allowed in different operating
screen hierarchies
situations. To support changing requirements during process control, you can
configure the following measures, which provide the operator with help
depending on the situation and aims:

11.1 Branching by Means of Soft Keys

Soft keys: function You can configure function calls on the OP3 by means of soft keys. Soft keys
keys with different are special function keys to which different function calls are assigned for
functions different screen entries while you edit a screen. This makes it possible for the
operator to select functions as and when required by the situation. The keys
that can be assigned as soft keys on the OP3 are F1 to F5.
The functions that can be assigned to soft keys include:
When the OP3 is connected to a PLC, a bit can be configured in a variable
for every soft key. This means that a bit is set in the PLC when a soft key is
pressed.
Operator Panel OP3
Edition 11/99
screen-dependent soft keys and
user-defined screen hierarchies.
display message level,
choose screen,
display screen directory,
display special screen,
logout.
11
11-1