C200H-CN221 Omron, C200H-CN221 Datasheet - Page 161

• Manufacturer Part Number: C200H-CN221
• Description: C200H I/O CABLE, 2M (COO)
• Manufacturer: Omron

Specifications of C200H-CN221

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ASCII code
ASCII Unit
Backplane
back-up
baud rate
bit
central processing unit
communication cable
Control System
counter
CPU
cycle time
data area
[A(merican) S(tandard) C(ode for) I(nformation) I(nterchange)] A standard
computer code used to facilitate the interchange of information among vari-
ous types of data-processing equipment.
An Intelligent I/O Unit. The ASCII Unit has its own CPU and 16 kilobytes of
memory. This Unit enables communication between the PC and any other
device which uses ASCII code. The ASCII Unit can be programmed in BA-
SIC.
A base to which Units are mounted to form a Rack. Backplanes provide a
series of connectors for these Units along with wiring to connect them to the
CPU and Power Supply. Backplanes also provide connectors used to con-
nect them to other Backplanes. In some Systems, different Backplanes are
used for different Racks; in other Systems, Racks differ only by the Units
mounted to them.
A copy of existing data which is valuable if data is accidentally erased.
Transfer speed between two devices in a system measured in bits per
second. For example, an optical sensor might be configured to send its infor-
mation to the FIT at 9600 baud. It is important for both of the devices to be
set to the same baud rate.
The smallest piece of information that can be represented on a computer. A
bit has the value of either zero or one, corresponding to the electrical signals
ON and OFF. A bit is one binary digit.
A device that is capable of storing a program and data, and executing the set
of instructions contained in the program. In a PC System, the central pro-
cessing unit executes the program, processes I/O signals, communicates
with external devices, etc.
Cable used to transfer data between components of a control system and
conforming 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 de-
vices that are used to control or obtain feedback from the controlled system.
A PC function that counts the number of occurrences of a certain event.
An acronym for central processing unit.
The total time it takes the PC to perform internal operations, i.e., reset the
watchdog timer, read the program, receive input data, send output data, and
execute instructions. Cycle time is monitored by the watchdog timer within
the PC, and if it takes longer than a certain specified amount of time, an error
message may be generated, or the CPU may just stop. Cycle times will differ
depending on the configuration of the system.
An area in the PC’s memory that is designed to hold a specific type of data,
e.g., the LR area is designed to hold common data in a PC Link System.
Glossary
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