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Configuring variables for monitoring
Configure a process value for each "Limit monitoring" tab. Select the process value to be
monitored in the "Monitored value" drop-down list. Enter the values for upper limit, lower limit
and hysteresis that trigger an event.
Limits
Each process value (monitored value) is assigned limits. The following limit parameters are
available:
● Upper limit
● Lower limit
● Hysteresis
Hysteresis
The hysteresis works as follows:
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8SSHUOLPLW
/RZHUOLPLW
/RZHUOLPLW
7LPH
0RQLWRUHGYDOXH
0RQLWRUHGYDOXH
/LPLWVZLWKK\ᚔHUHVLV
/LPLWVZLWKRXWK\ᚔHUHVLV
+\ᚔHUHVLV
+\ᚔHUHVLV
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$
%
'
&
A:Upper limit with hysteresis
An overrun event is counted when the process value rises above the upper limit (1). The next
overrun event is counted when the process value falls below the lower limit minus hysteresis
(2), and then rises above the upper limit (3).
When hysteresis is enabled (value not equal to zero entered), two events are counted within
the time period specified by 'A'.
Parameter assignment
9.3 Parameter assignment over remote operation
SITRANS P320/P420 (mA/HART)
150
Operating Instructions, 06/2018, A5E44852162-AA
Содержание SITRANS P320
Страница 10: ...Table of contents SITRANS P320 P420 mA HART 10 Operating Instructions 06 2018 A5E44852162 AA ...
Страница 18: ...Introduction 2 7 Notes on warranty SITRANS P320 P420 mA HART 18 Operating Instructions 06 2018 A5E44852162 AA ...
Страница 174: ...Functional Safety 10 7 Repair and service SITRANS P320 P420 mA HART 174 Operating Instructions 06 2018 A5E44852162 AA ...
Страница 260: ...Index SITRANS P320 P420 mA HART 260 Operating Instructions 06 2018 A5E44852162 AA ...