Endress+Hauser Fieldgate FXA320, Руководство по эксплуатации

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Fieldgate FXA320 6 Configuring the Fieldgate
Hauser 68
Overview setup
parameters
Table 6-10: Device detail parameters for overview
Parameter Description
Show in Overview Check the PV box to show the value in the overview.
Description 2x 20 characters for user description of measured value.
CurrentValue Read only parameter showing current measured value with date and time.
Limit Status Read only parameter showing the limit status with date and time:
– OK: device is operating correctly.
– HH, H, L, LL: value has exceeded or dropped below associated limit value.
Note: The limit status applies to the limit values set in the web server. It has nothing to do with
any limits set within the device itself.
min. Value
max. Value Sets min. and max. range values in the web server.
Limit settings Sets four limits in the web server for the parameter concerned:
– HH: High high limit, an alarm is set when measured value moves above the high high limit.
– H: High limit, an alarm is set when the measured value moves above the high limit.
– L: Low alarm, an alarm is set when the measured value moves below the low limit.
– LL: Low low alarm, an alarm is set when the measured value moves below the low low limit.
The status is flagged in the Limit Status column. If no value is entered, the limit is disabled.
Hysteresis limit
Gradient limit Sets a hysteresis band in percent of set range and a rate of change limit in absolute units:
– The hysteresis is set below HH and H limits and above L and LL limits. When a measured value
violates a limit, an alarm is immediately set. When it returns to within limits, the alarm is reset
only when the value leaves the hysteresis band.
– An alarm is sent when the rate of change of the measured value (in engineering units) is greater
than or equal to the set value.
Mail on ... Check the box to send an e-mail:
• LIMIT: alarm is sent when the limit is violated.
• RESET: alarm is sent when the value returns within limits, see table 6-9
Show Switch... For digital inputs, sets value, below /above which the text selected from the drop-down menu is
displayed:
– Switch level: enter limit level, e.g. 0, 1.
– Switch status: select associated text.
E-mail all Device
Parameters... Check the box to send an e-mail with all device parameters, see chap. 5.6.1.
Send Press to register your changes in the Fieldgate.
Reset Press to discard any changes made since the previous send.