Keypad Locking - Ahlborn ALMEMO 2590-2A Operating Instructions Manual

When entering alphanumeric characters select the group :
upper case characters by pressing key(s) :
upper case characters by pressing key(s) :
numbers only by pressing key(s) :
arithmetic signs by pressing key(s) :
When entering certain parameters, e.g. measuring range, relay variant, etc. this
procedure can be used to select and program not only characters but also whole
designations.

Keypad locking

9.6
In order to protect all the settings for a measuring operation against unauthor-
ized tampering it is possible not only to lock the sensor itself (see 13.4) but also
to restrict access to the rest of the programming and the process control via the
interface (see Manual, 6., 6.1.3) by assigning a locking code (password). The
locked status can then only be canceled by entering this password code or by
re-initializing (s. 7.5)
V24 command
Locking
ON
OFF
Incorrect password
Entry Acknowledgement message
c xxxx c xxxx CR LF
Locked CR LF ETX
c xxxx c xxxx CR LF
Unlocked CR LF ETX
c xyzx c xyzx CR LF
ERROR CR LF ETX
9. Display and keypad
<ABC>
< abc >
< 123 >
< + - >
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