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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
ON
HYS
ONHYS
Event subsetting
ONHYS
HYS
Event subsetting
PV change rate 29
Operates according to the magnitude of
the PV change.
Value change = current value − previous
value
ON ON
Event main setting
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.