Limit Monitor - Siemens Sitrans P500 Operating Instructions Manual

Operate
6.3 Description of the operating functions
p
Figure 6-20
See also
"3.7 MinMaxPointer" (Page 130)
6.3.11.3

Limit monitor

Description
You can activate a limit value indicator to monitor the PV. The limit value indicator contains
two upper and two lower limits which you can parameterize. It reports a diagnostic warning
when the lower end of the higher limits as well as the higher end of the lower limits are
breached. It outputs a diagnostic alarm, if the upper higher limit of the lower bottom limit is
breached.
Select the menu command "3.8 Limiter" (Page 132).
You can program the following values for the limit value indicator:
Table 6- 8 Parameter of the limit monitor
Parameter names
"3.8.1.1 Alarm Enable" (Page 132)
"3.8.1.2 Warning enable"
(Page 133)
"3.8.1.3 Lo Value" (Page 133)
"3.8.1.4 LoLo Value" (Page 133)
"3.8.1.5 Hi Value" (Page 133)
166
Pressure
Basic representation of min/max indicators
Description
Here you activate the limit value indicator alarm. You can activate either the upper
limit value alarm or the lower limit value alarm or both.
Here you activate the limit value indicator warning. You can activate either the upper
limit value warning or the lower limit value warning or both.
"LO" Lower limit higher value warning in the unit of the selected PV.
"LO LO" Lower limit value alarm in the unit of the selected PV.
"HI" Upper limit value warning in the unit of the selected PV.
t Time
Operating Instructions, 12/2014, A5E02344528-09
SITRANS P500 with HART