Omron H8PS Series Manual page 17

Glossary
Addition-type (Up/Incrementing) counter
A counter having an add input and thus capable of counting in an
ascending order.
Add input
Count value
Ambient temperature (operating)
The ambient temperature at which a device can be used in the con-
tinuously operated state.
Ambient temperature (storage)
The ambient temperature at which a device without power applied,
may be stored safely.
Automatic reset
To automatically return the counter to the „0" state after the lapse of a
given time.
Counting capacity
The maximum value up to which the counter can count. The counting
capacity is usually expressed in decimal digits.
Count-up
The point in time or the state in which the output section of the
counter operates when the number of counts reaches the preset
value.
Dielectric strength
The maximum voltage a dielectric can withstand without being dam-
aged.
Electromagnetic reset
To electromagnetically reset the counter by applying a reset signal.
Electromagnetic counter
A counter which performs counting by energizing or de-energizing
the built-in electromagnet.
Electronic counter
A counter which mainly consists of transistors, ICs, micro-computers,
etc.
Memory
CPU
Electrical life expectancy
The life expectancy of a counter when the control output is operated
to switch a specified voltage/current load connected to the control
output.
External reset
To reset the counter by a required signal applied from an external
source to the reset input signal terminals of the counter.
Holding output
The control output of the counter without a self-resetting function.
The output is continuously held as long as the counter is not reset by
the power, external, manual, or electromagnetic reset.
Humidity
The ambient humidity at which a device can be used for continuous
operation.
Insulation resistance
The resistance offered by an insulating material to the flow of current
resulting from a DC voltage.
Life expectancy (mechanical)
The life expectancy of a counter when the control output of the
counter is operated without a load.
Manual reset
To mechanically reset the counter by manual means.
Maximum counting speed
The maximum counting speed at which the display or output section
of the counter operates accurately without miscounting. The maxi-
mum counting speed is expressed in units of counts per second
(cps).
Memory protective function during power failure
The function by which the number of counts at the time of a power
failure is memorized until power is again applied to the counter.
Operating mode
Control output patterns or display patterns that appear when counted
up to the value set by the preset counter.
N Mode
Set value
Count value display
Control output
C Mode
Set value
Count value display
Control output
Operating voltage range
The allowable fluctuation range of the voltage required to operate a
device (e.g. control and signal voltage).
One-shot output
A counter control output of fixed duration which can be reset by a
self-reset.
Count value display:
Held
Control output: Held
Count value display:
Instantaneous reset
Control output: one shot
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