Siemens SITRANS P DS III - Page 118

Operator control functions via PROFIBUS
7.8 Failure behavior
SITRANS P DS III with PROFIBUS PA
118 Operating Instructions, 06/2013, A5E00053276-07
Example
G_137
Low warning limit
A
1
High alarm
G_138
High warning limit
A
2
Low alarm
G_141
Low alarm limit
W
1
High warning limit
G_142
High alarm limit
W
2
Low warning limit
Hys
Hysteresis
t
Time
w
Measured value
Figure 7-8 Warning and alarm limits