LUC-M** with HART/4 mA ... 20 mA and PROFIBUS PA
Function group "diagnostics" (0A)
D
O
C
T
-08
43A
01/
2010
1855
72
55
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 LUC-M** 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 (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
O
and
S
and
F
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
O
and
S
and
F
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.
E
+
–
O
and
S
and
F
press simultaneous.
The LOCK_SYMBOL appears on the LCD.
E
+
–
Summary of Contents for LUC-M Series
Page 69: ...LUC M with HART 4 mA 20 mA and PROFIBUS PA Notes DOCT 0843A 01 2010 185572 69...
Page 70: ...LUC M with HART 4 mA 20 mA and PROFIBUS PA Notes DOCT 0843A 01 2010 185572 70...
Page 71: ...LUC M with HART 4 mA 20 mA and PROFIBUS PA Notes DOCT 0843A 01 2010 185572 71...
Page 72: ...LUC M with HART 4 mA 20 mA and PROFIBUS PA Notes DOCT 0843A 01 2010 185572 72...
Page 74: ...LUC M with HART 4 mA 20 mA and PROFIBUS PA Notes DOCT 0843A 01 2010 185572 74...
