Honeywell DCP552 Mark II User Manual page 57

PV deviation rate event
Set event value is more than 0 (using upper limit event)
PV
Sampling cycle
PV deviation rate
upper limit event
operation
PV deviation rate
lower limit event
operation
Sampling (1)
Set event value is less than 0 (using lower limit event)
PV
Sampling cycle
PV deviation rate
upper limit event
operation
PV deviation rate
lower limit event
operation
Sampling
(1)
PV deviation is measured in each sampling cycle set using the event configuration
data setting while on/off states are determined by comparing event setting
deviation rate ∆PVs.
PV deviation between sampling cycles is ignored. Event on/off switching is
performed according to the sampling cycle. This function can be combined with
event on delay.
Set event
value
OFF
ON
(2)
Set event value
ON
(2)
Chapter 5. FUNCTIONS
Set event value
Set event value
ON (up alarm)
OFF
ON
OFF
(3) (4)
Set event value
Set event value
ON
OFF
ON (down alarm)
OFF
(3) (4)
Time
Time
5-11