Siemens SIMATIC HMI OP 77B Operating Instructions Manual page 38

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System keys
Table 5-1 Overview of control keys
Key Effect of pressing
The cursor keys have a repeat function.
In the case of I/O fields, selects the next field in
,
horizontal direction.
In the case of I/O fields, selects the next field in
vertical direction.
,
The following field is selected in the sequence
TAB
defined in the project (Tab Order).
The second function of another key is released for
SHIFT
use.
When used with the cursor keys, scroll in the
SHIFT
selection fields; refer to Chapter 5.4.3 and 5.4.5.
+
SHIFT
+
The Tab Order is reversed
SHIFT TAB
+
In character "String" input fields, the character at the
INS
current cursor position is deleted.
DEL
All the following characters move one position to the
left.
Calls in a window containing operator notes on the
HELP
selected object. Condition:
Operator notes are only available on the selected
object when the
Pressing
notes for a screen and an object; toggling for an I/O
field for example.
•
Undo
ESC
An entry can be undone by pressing this key
before the
ENTER
•
Close the System Event window, if configured
•
Cancel the display of an operator note to return to
the previous display.
Acknowledges the alarm current displayed or marked,
ACK
or all alarms in an acknowledgment group, depending
on the configuration; refer to Chapter 6.2
5–8
Release 03/2004
HELP
LED lights up.
ENTER
enables toggling between operator
key is pressed to confirm the input.
Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0