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Chapter 4. Functions
Operation type
Operation
type
setting
Direct action
●
means that ON/OFF changes at that
value
◯
means that ON/OFF changes after
that value is passed
Reverse action
●
means that ON/OFF changes at that
value
◯
means that ON/OFF changes after
that value is passed
Standard numerical
code high and low limits
28
Value
ON
HYS
ON
HYS
Event main setting
Event subsetting
ON
HYS
HYS
Value
Event main setting
Event subsetting
PV change rate
29
Operates according to the magnitude of
the PV change.
Value change = current value − previous
value
PV change
ON
ON
Event main setting
Event subsetting
or
ON
ON
PV change
Event main setting
Event subsetting
Always ON if event main setting = event
subsetting.
Operates according to the magnitude of
the PV change.
Value change = current value − previous
value
ON
PV change
Event main setting
Event subsetting
or
ON
PV change
Event main setting
Event subsetting
Always OFF if event main setting = event
subsetting
*1. If the main setting is greater than the subsetting, the main setting and subsetting are automatically interchanged.