Siemens SIMATIC PG 720 P Manual page 23

Table 3-3
LED Displays
The LED displays for the keys NUM LOCK and SCROLL LOCK are located
below the function keys F9 to F12 and display the current status of the keys.
When the programming device is powered up, the LED displays for the NUM
LOCK, CAPS LOCK, and SCROLL LOCK keys light up briefly twice. The
keyboard is then ready for operation.
PG 720 P Programming Device
C79000-G7076-C721-02
Functions of the Special Keys
Key
ALT Key (combination key)
This key is only used in combination with other keys. For example,
Alt
you can enter the hexadecimal value of an ASCII character using this
key and the numeric keypad for example, F
to "{".
ALT Key (combination key)
Gr
You can use this key together with the other combination keys to
Alt
Gr
generate other key codes. For example, you can generate the "\"
character on the German keyboard by typing ALT
PRINT (combination key)
Print
Using the Print key, you can output the current screen display to a
SysRq
printer (depending on the software used).
PAUSE (combination key)
Pause
The Pause key interrupts program execution in the majority of
Break
applications.
NUM LOCK
CAPS LOCK
SCROLL LOCK
Getting to Know the PG 720
Function
+ ALT + 123 corresponds
n
+ ß.
Gr
3-9