Siemens Sitrans PROBE LU Instruction Manual page 66

2. The scaling output is applied.
For example:
6
5
4
3
2
1
0
1
3. This value is filtered using a first order filter based on a time constant provided by
the user.
4. The status of the Process Variable (input value) is checked. If the status is Bad, a
Failsafe condition occurs. The output is determined by the Failsafe Mode of the
block.
5. The target mode parameter allows the entire AI block to be overridden by a Manual
Out value.
6. The value is checked against the user parameterized warning and alarm limits.
(There is an upper and lower warning limit and an upper and lower alarm limit. The
unit of the limits corresponds to the unit of the output range. A hysteresis parameter
prevents toggling in the Status field of the OUT value.)
7. The OUT VALUE parameter is the value for the cyclic data transfer.
Page 60 SITRANS Probe LU (PROFIBUS PA) – INSTRUCTION MANUAL
2 3 4 5
Output range:
AIFB
2
Out (or AIFB Out)
2
straight to LCD
(same values displayed
on LCD as PLC)
7ML19985JB02