Datasheet

Appendix APCI-3xxx
Term Description
Optical isolation The technique of using an optoelectric transmitter and
receiver to transfer data without electrical continuity, to
eliminate high-potential differences and transients.
Output voltage The nominal voltage output reading when shaft is rotated to
full range, expressed in volts DC /Vo DC)
Parameter The parameters of a control comprise all for the control
process required numeric values, e.g. for limit values and
technological number.
PCI bus PCI bus is a fast local bus with a clock rate up to 33 MHz.
This bus is used for processing a great number of data. The
PCI bus is not limited like the ISA and EISA systems.
Protective circuitry A protective circuitry of the active part is done in order to
protect the control electronic. The simplest protective
circuitry is the parallel switching of a resistance.
Protective diode At the input of the integrated MOS (Metal Oxide Semi-
Conductor)-circuits used diodes, which operates at the
permitted input voltages in the reverse range, but at
overvoltage in the transition range and therefore protects the
circuits against damage.
Reference voltage A point to which all further potentials of a series are referred
(often ground potential). In the field of control and
regulation, all voltages are measured against a reference
voltage.
Reference voltage Reference voltages are stable voltages that are used as
reference unit. From them voltages can be derived that are
required for example in current supplies and in other
electronic circuitries.
Resolution The smallest significant number to which a measurement
can be determined. For example a converter with 12-bit
resolution can resolve 1 part in 4096.
Scan mode Scan modes are: Single software scan, single hardware
triggered scan, continuous software scan, continuous
software scan with timer delay, continuous hardware
triggered scan and continuous hardware triggered scan with
timer delay.
Sensor A device that responds to physical stimuli (heat, light,
sound, pressure, motion, etc.) and produces a corresponding
electrical output.
Sequence mode A sequence consists of a certain number of acquisitions, and
the sequence mode defines the mode of acquisition (simple
sequence mode and sequence mode with delay)
Settling time The time required, after application of a step input signal,
for the output voltage to settle and remain within a specified
error band around the final value. The settling time of a
system includes that of all of the components of the system.
Short circuit A short circuit of two clamps of an electric switch is when
the concerning clamp voltage is zero.
Short circuit current Short circuit current is the current between tow short-
circuited clamps.
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