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Table 1: Instruction Data Types
Function Argument Data Types Edge Triggered
plc glossary -35.1
1. COMBINED GLOSSARY OF TERMS
2. A
abort -the disrupption of normal operation.
absolute pressure -a pressure measured relative to zero pressure.
absorption loss -when sound or vibration energy is lost in a transmitting or reflecting medium. This is the result of generation of other forms of energy such as heat.
absorbtive law -a special case of Boolean algebra where A(A+B) becomes A.
AC (Alternating Current) -most commonly an electrical current and voltage that changes in a sinusoidal
pattern as a function of time. It is also used for voltages and currents that are not steady (DC).
Electrical power is normally distributed at 60Hz or 50Hz.
AC contactor -a contactor designed for AC power.
acceptance test -a test for evaluating a newly purchased system’s performance, capabilities, and conformity
to specifications, before accepting, and paying the supplier.
accumulator -a temporary data register in a computer CPU.
accuracy -the difference between an ideal value and a physically realizable value. The companion to
accuracy is repeatability.
acidity -a solution that has an excessive number of hydrogen atoms. NEXT Easy Access To All Pages 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88
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