Publication 1769-UM005A-EN-P
G-4
resolution
– The smallest detectable change in a measurement, typically
expressed in engineering units (e.g. 1°C) or as a number of bits. For
example a 12-bit system has 4096 possible output states. It can therefore
measure 1 part in 4096.
RTD
– Resistance temperature detector. A temperature-sensing device that
consists of a temperature-sensing element connected by two, three, or
four lead wires that provide input to the module. The RTD uses the basic
concept that the electrical resistances of metals increase with temperature.
When a small current is applied to the RTD, it creates voltage that varies
with temperature. The module processes and converts this voltage into a
temperature value.
sampling tim
e – The time required by the A/D converter to sample an
input channel.
step response time
– The time required for the channel data word signal
to reach a specified percentage of its expected final value, given a
full-scale step change in the input signal.
update time
– see “module update time”
Содержание Compact 1769-IR6
Страница 1: ...Compact I O RTD resistance Input Module Catalog Number 1769 IR6 User Manual AB PLCs ...
Страница 10: ...Publication 1769 UM005A EN P P 4 ...
Страница 40: ...Publication 1769 UM005A EN P 3 16 Installation and Wiring ...
Страница 74: ...Publication 1769 UM005A EN P 4 34 Module Data Status and Channel Configuration ...
Страница 115: ...AB PLCs ...
Страница 116: ...Publication 1769 UM005A EN P February 2001 2001 Rockwell International Corporation Printed in the U S A ...