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10-6-2 Upper/lower limit judgment (
f-19 1
)
Relation between OK and HI
When the measured value exceeds the set upper limit value, HI is output. Even if the measured
value falls below the upper limit value after that, OK is not output immediately. OK will be output
when the measured value is reduced by the hysteresis width, or when the hysteresis time has
elapsed.
Relation between OK and LO
When the measured value falls below the set lower limit value, LO is output. Even if the measured
value returns above the lower limit value after that, OK is not output immediately. OK will be
output when the measured value is increased by the hysteresis width, or when the hysteresis time
has elapsed.
Judgment example
Hysteresis width
Hi
lo
COMP ON
HI output
OK output
LO output
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Hysteresis time
