Omron SYSMAC C200HW-PCS01-EV1, Руководство по эксплуатации

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Glossary
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Bus Connection Unit A Unit used to connect a single PC Card Unit to the C200HX/HG/HE PC or to one
SYSMAC LINK Unit or SYSMAC NET Link Unit to the C200HX/HG/HE PC
together with one PC Card Unit.
byte A unit of data equivalent to 8 bits, i.e., half a word.
central processing unit A device that is capable of storing programs and data, and executing the instruc-
tions contained in the programs. In a PC System, the central processing unit
executes the program, processes I/O signals, communicates with external
devices, etc.
channel See word.
character code A numeric (usually binary) code used to represent an alphanumeric character.
checksum A sum transmitted with a data pack in communications. The checksum can be
recalculated from the received data to confirm that the data in the transmission
has not been corrupted.
CIO Area A memory area used to control I/O and to store and manipulate data. CIO Area
addresses do not require prefixes.
clear The process of turning a bit or signal OFF.
client A process or node requesting processing from a server.
Communications Board A board that is installed into a C200HX/HG/HE PC enabling communications
with peripheral devices or Special I/O Units via RS-232C, RS-422, or RS-485.
completion code A code stored in the PC to indicate the results (i.e., normal or error) of PC com-
munications.
control bit A bit in a memory area that is set either through the program or via a Program-
ming Device to achieve a specific purpose, e.g., a Restart Bit is turned ON and
OFF to restart a Unit.
control data An operand that specifies how an instruction is to be executed. The control data
may specify the part of a word is to be used as the operand, it may specify the
destination for a data transfer instructions, it may specify the size of a data table
used in an instruction, etc.
control signal A signal sent from the PC to effect the operation of the controlled system.
CPU The name of the Unit in a PC that contains the main CPU and other main PC
components. See also central processing unit.
CPU Bus Unit A special Unit used with CV-series PCs that mounts to the CPU bus. This con-
nection to the CPU bus enables special data links, data transfers, and proces-
sing.
CPU Bus Unit Area A part of the CIO Area allocated to CPU Bus Units. The use of the words and bits
in this area is determined by the Unit to which they are allocated.
CPU Rack The main Rack in a building-block PC, the CPU Rack contains the CPU, a Power
Supply, and other Units. The CPU Rack, along with the Expansion CPU Rack,
provides both an I/O bus and a CPU bus.
CSV File format which allows data to be processed with commercially available
spreadsheet software. Supported by the PC Card Unit.