MP 277 - Service, Support Download

Transcript
Operating a project
8.5 Entering values using the keys
8.5.2
Example: Enter characters using the alphanumeric keyboard
Using the same keys of the alphanumeric keyboard you can enter up to six different
characters. The entry result depends on the combination of the keys pressed.
The values "5", "M", "m", "N", "n" and "%" are entered using the same key
keyboard. You can use the keys
,
and
of the
to switch between the different
assignments..
The following table shows the entry options using the key
8.5.3
.
Result
Key
Key
Key
No LED is lit
Not relevant
Not pressed
5
Left LED is illuminated.
Not pressed
Not pressed
m
Left LED is illuminated.
Pressed
Not pressed
M
Right LED is illuminated.
Not pressed
Not pressed
n
Right LED is illuminated.
Pressed
Not pressed
N
Not relevant
Not relevant
Pressed
%
Function keys
Function keys
Function key assignment is defined during configuration. The configuration engineer can
assign function keys globally and locally.
Function keys with global function assignment
A globally assigned function key always triggers the same action on the HMI device or in the
PLC irrespective of the screen displayed. Such an action could be, for example, the
activation of a screen or the closure of an alarm window.
Function keys with local function assignment
A function key with local function assignment is screen-specific and is therefore only
effective within the active screen.
The function assigned locally to a function key can vary from screen to screen.
The function key of a screen can be assigned one function only, either a global or local one.
The local assignment function takes priority over the global setting.
The configuration engineer can assign function keys in such a way that you can manipulate
operating elements with function keys, for example, the alarm view, trend view, recipe view
or status/force.
MP 277
Operating Instructions, 07/2014, A5E02479740-02
173
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