Automating Manufacturing Systems - Process Control and ...

plc glossary - 35.4
decimal(base 10)
0
1
2
3
4
5
6
7
8
9
10
11
.
.
.
binary(base 2)
0
1
10
11
100
101
110
111
1000
1001
1010
1011
.
.
.
octal(base 8)
0
1
2
3
4
5
6
7
10
11
12
13
.
.
.
e.g. differences
decimal
binary
15 ... tens
3,052 ... thousands
1,000,365 ... millions
1 ... bit
0110 .... nibble (up to 16 values)
10011101 ... byte (up to 256 values)
0101000110101011 ... work (up to 64,256 values)
Most significant bit
least significant bit
BITNET (Because It’s Time NET) - An academic network that has been merged with CSNET.
blackboard - a computer architecture when different computers share a common memory area (each has its
own private area) for sharing/passing information.
block - a group of bytes or words.
block diagrams - a special diagram for illustrating a control system design.
binary - specifies a number system that has 2 digits, or two states.
binary number - a collection of binary values that allows numbers to be constructed. A binary number is
base 2, whereas normal numbering systems are base 10.
blast furnace - a furnace that generates high temperatures by blowing air into the combustion.
bleed nozzle - a valve or nozzle for releasing pressure from a system.
block diagram - a symbolic diagram that illustrates a system layout and connection. This can be ued for
analysis, planning and/or programming.
BOC (Bell Operating Company) - there are a total of 7 regional telephone companies in the U.S.A.
boiler - a device that will boil water into steam by burning fuel.
BOM (Bills Of Materials) - list of materials needed in the production of parts, assemblies, etc. These lists are
used to ensure all required materials are available before starting an operation.
Boolean - a system of numbers based on logic, instead of real numbers. There are many similarities to
normal mathematics and algebra, but a separate set of operators, axioms, etc. are used.