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11 Function group "diagnostics" (0A)
Prosonic M
62
EHauser
11.5
Function "unlock parameter" (0A4)
Set-up can be locked and unlocked with this function.
11.5.1 Locking of the configuration mode
The Micropilot can be protected in two ways against unauthorised changing of
instrument data, numerical values or factory settings:
"
unlock parameter
"
(0A4):
A value
<> 100 for HART
(e.g. 99) or
<> 2457 for PROFIBUS-PA and Foundation
Fieldbus
(e.g. 2456) must be entered in "
unlock parameter
"
(0A4)
in the
"
diagnostics
"
(0A)
function group. The lock is shown on the display by the
symbol
and can be released again either via the display or by communication.
Hardware lock:
The instrument is locked by pressing the
and
and
keys at the same time.
The lock is shown on the display by the
symbol and can
only
be unlocked again
via the display by pressing the
and
and
keys at the same time again. It is
not
possible to unlock the hardware by communication.
All parameters can de displayed even if the instrument is locked.
Þ
Þ
ß
and
and
press simultaneous
ß
The LOCK_SYMBOL appears on the LCD.