Vaisala viewLinc-4.1-M211518 - Manual (Page 92)

Chapter 5: Alarms
82 © 2012 Vaisala Canada Inc
About Alarms
There are several types of alarms in viewLinc: threshold
alarms, communication alarms, event log validation alarms,
and device sampling alarms. If you are using validatable
devices, you may also receive device validation alarms and
calibration alarms.
Users with the appropriate ACL permissions can set
threshold alarm limits and when conditions exceed these
limits, alarms are triggered which notify key staff of the
condition. Staff with Acknowledge Alarms permissions or
higher then acknowledge the alarms in viewLinc.
All transactions are recorded in the Event Log and the
Historical database.
Using viewLinc, you can customize the alarm information that
is issued for threshold, communication and device alarms by
configuring them from
Options | System Configuration | Device
Manager
or by modifying alarm/threshold templates from
Options | System Configuration | Templates | Alarm Templates
.
Threshold Alarms
Threshold Alarms notify users when conditions (such as
temperature and relative humidity) are outside acceptable
limits.
Threshold alarms are not enabled by default. To trigger
threshold alarms when certain thresholds are exceeded,
users with assigned permissions must configure them.
Communication Alarms
Communication Alarms notify users when communication
between a host (Device Host or viewLinc Server) and its
devices is down. This may be because viewLinc Server can
not communicate with the device, or the device connection to
a host has been severed. Communication alarms serve as a
system health test, alerting you if there is a problem that
might disrupt viewLinc monitoring and alarming.