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For alarm 1, Trigger levels=SP1+A1DV 1/2 A1HY.
For alarm 2, Trigger levels=SP1+A2DV 1/2 A2HY.
A1SP and/or A2SP are hidden if alarm 1 and/or alarm 2 are set with deviation alarm. One
of 4 kinds of alarm modes can be selected for alarm 1 and alarm 2. These are Normal alarm,
latching alarm, Holding alarm and Latching/Holding alarm.
Figure 4-40.Normal Deviation Alarm
Figure 4-41.Latching Deviation Alarm
Figure 4-42.Holding Deviation Alarm