Omron SYSMAC LINK C1000H-SLK21-V1 System Manual page 156

bus
byte
central processing unit
channel
C-mode
combined Link System
common data
common data areas
communications cable
Control System
controlled system
controller
Converting Link Adapter
CPU Backplane
CPU Rack
CPU Unit
C-series PC
142
Glossary
A communications path used to pass data between any of the Units connected
to it.
A unit of data equivalent to 8 bits, i.e., half a word.
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.
See word .
The form of communications useable with either C-series or CV-series PCs. See
CV-mode .
A control system that includes more than one of the following systems: SYS-
MAC LINK System, Remote I/O System, PC Link System, Host Link System,
or NET Link System.
Data that is stored in a memory of a PC and which is shared by other PCs in the
same the same system. Each PC has a specified section(s) of the area allocated
to it. Each PC writes to the section(s) allocated to it and reads the sections allo-
cated to the other PCs with which it shares the common data.
LR data areas in separate PCs whose contents are kept the same. Each PC
writes data to certain LR area words, and then transfers this data to the same
LR area words in the other PCs that have a PC or SYSMAC LINK Unit con-
nected in series with it. Common data areas are created in PC Link Systems
and SYSMAC LINK Systems.
Cable used to transfer data between components of a control system and con-
forming to the RS-232C or RS-422 standards.
All of the hardware and software components used to control other devices.
A Control System includes the PC System, the PC programs, and all I/O
devices that are used to control or obtain feedback from the controlled sys-
tem.
The devices that are being controlled by a PC System.
A device on a general-purpose interface bus that is capable of controlling com-
munications.
A Link Adapter used to convert between different types of optical fiber cable, dif-
ferent types of wire cable, or between optical fiber cable and wire cable. Such
conversion is necessary to connect Units that use different forms of communica-
tion.
A Backplane used to create a CPU Rack.
Part of a building-block PC, the CPU Rack contains the CPU Unit, a Power
Supply, and other Units. With most PCs, the CPU Rack is the only Rack that
provides linkable slots.
See central processing unit .
Any of the following PCs: C2000H, C1000H, C500, C200H, C200Hj, C40H,
C28H, C20H, C60K, C60P, C40K, C40P, C28K, C28P, C20K, C20P, C120, or
C20.