System Keys - Siemens OP7 Equipment Manual

3.1.1

System Keys

Function keys for
A "function key for global function assignment" always activates the same
global function action on the OP or in the PLC irrespective of the screen currently displayed
assignment
(global meaning on the OP). Examples of such actions include:
The following keys can be assigned global functions:
Function keys for
A "function key for local function assignment" or "soft key" has a screen-
local function specific (local) meaning.
assignment (soft
The function of soft key can differ from screen to screen.
keys)
The following keys can be assigned local functions:
Two-tier soft keys are particularly suitable for implementing binary states
and machine functions – for example:
OFF
System keys
The system keys are used to make inputs on the OP. They are divided up into
input keys for numerical and alphanumeric characters (numeric keypad) and
control keys (see Figure 3-1).
3-2
Opening a screen
Starting a screen printout (Print Screen)
OP7: F1 to F4 and K1 to K4,
OP17: F1 to F8 and K1 to K16.
F1 to F4 and K1 to K4,
OP7:
F1 to F8 and K1 to K8.
OP17:
+
ON
START
–
STOP
Equipment Manual OP7, OP17
Release 04/99