Yokogawa DAQWORX - Manual (Page 362)

7-186 IM WX101-01E
Setting Alarm Interval, Hysteresis, and Alarm Display Hold
Select a SETUP topic SETUP tab
Alarm display hold
(only DC100/DR)
RH alarm interval
RL alarm interval
Hysteresis setting
Alarm Interval
For high/low limit on rate-of-change alarms, variation is measured over a preset interval.
Hysteresis
Set the width between the value of alarm occurrence and its release. Hysteresis values
can be set in the 0-1% percentage range of the span. The hysteresis setting is used for
high and low limit alarms.
Alarm Display Hold (DC100, and DR only)
For DC100, and DR select whether to hold the alarm indicator after the alarm is released,
or not.
Setting Relay and Internal Switch Actions
Select a SETUP topic SETUP tab Relay AND/OR Reflashing Alarm
Relay hold
Relay (De-)
Energizing
Reflashing Alarm Setting
When several alarms share the same alarm output relay, you can select this setting
which results in a short de-operation of the relay when a second alarm occurs.
Relay AND/OR
Select how the internal switches/alarm output relays will be operated, when a group of
alarms share the same internal switch or alarm output relay.
AND: will be operated when all alarms are occurring;
OR: will be operated when at least one alarm is occurring.
7.9 Setting DARWIN