Electrical Damping (Filter Time Constant); Key Lock And Write Protection - Siemens SITRANS P DS III Operating Instructions Manual

Operator control functions via PROFIBUS

7.5 Electrical damping (filter time constant)

See also
Level measurement (Page 108)
Pressure measurement (Page 107)
7.5 Electrical damping (filter time constant)
You can set the time constant of electrical damping (filter time constant) to a point within a
range of 0 to 100 seconds. It always applies to the "Pressure" device variable (DV0) and
thus to the measured values derived from it.
See also
Setting/adjusting electrical damping (Page 79)
7.6

Key lock and write protection

You can set operation blocks according to the following table.
Table 7- 7
Lock
Keypad and function
block (hardware
write protection)
Write block
Local operation
Combination of write
blocking and no
enabling of local
operation
116
Keypad locks
Effect
Parameter changes with SIMATIC PDM and
setting changes made locally are blocked.
Independent of other operating locks.
Write block for parameterization using
SIMATIC PDM. Local operation is possible.
With PROFIsafe devices, password protection
can be set for parameter modifications via bus.
Refer to Write protection (Page 150).
If local operation is not enabled, no access is
possible using the keypad. Regardless of the
setting of this parameter, local operation is
automatically enabled 30 seconds after loss of
communication. After communication is re-
stored, the "Local operation permitted" param-
eter is restored to its original setting in the
device.
Acts like an active keypad block. Changes to
parameters (except for keypad block) are not
possible either with local operation or using
SIMATIC PDM.
Switching on/off
Local
Mode 10
SIMATIC PDM
SIMATIC PDM
SIMATIC PDM
SITRANS P DS III/P410 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00053276-08
Display
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LC
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LL