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Glossary
350
A programming device with advanced programming and debugging capabili-
ties to facilitate PC operation. A Graphic Programming Console is provided
with a large display onto which ladder-diagram programs can be written di-
rectly in ladder-diagram symbols for input into the PC without conversion to
mnemonic form.
hardware error
An error originating in the hardware structure (electronic components) of the
PC, as opposed to a software error, which originates in software (i.e., pro-
grams).
hexadecimal
A number system where all numbers are expressed to the base 16. In a PC
all data is ultimately stored in binary form, however, displays and inputs on
Programming Devices are often expressed in hexadecimal to simplify opera-
tion. Each group of four binary bits is numerically equivalent to one hexadeci-
mal digit.
Host Link System
A system with one or more host computers connected to one or more PCs
via Host Link Units so that the host computer can be used to transfer data to
and from the PC(s). Host Link Systems enable centralized management and
control of PC Systems.
Host Link Unit
An interface used to connect a PC to a host computer in a Host Link System.
host computer
A computer that is used to transfer data or programs to from a PC in a Host
Link System. The host computer is used for data management and overall
system control. Host computers are generally personal or business comput-
ers.
HR area
A data area used to store and manipulate data, and to preserve data when
power to the PC is turned OFF.
increment
Increasing a numeric value.
indirect address
An address whose contents indicates another address. The contents of the
second address will be used as the operand. Indirect addressing is possible
in the DM area only .
initialization error
An error that occurs either in hardware or software during the PC System
startup, i.e., during initialization.
initialize
Part of the startup process whereby some memory areas are cleared, system
setup is checked, and default values are set.
input
The signal coming from an external device into the PC. The term input is of-
ten used abstractly or collectively to refer to incoming signals.
input bit
A bit in the IR area that is allocated to hold the status of an input.
input device
An external device that sends signals into the PC System.
input point
The point at which an input enters the PC System. Input points correspond
physically to terminals or connector pins.
input signal
A change in the status of a connection entering the PC. Generally an input
signal is said to exist when, for example, a connection point goes from low to
high voltage or from a nonconductive to a conductive state.
Graphic Programming
Console
Summary of Contents for SYSMAC C200H
Page 1: ...OPERATION MANUAL C200H CPU01 E 03 E 11 E SYSMAC Programmable Controllers Cat No W130 E1 05 ...
Page 2: ...C200H Programmable Controllers CPU01 E 03 E 11 E Operation Manual Revised June 2003 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 8: ...TABLE OF CONTENTS ix Glossary 345 Index 363 Revision History 369 ...
Page 342: ...336 Programmer Program Date Page Word Contents Notes Word Contents Notes Data Storage ...
Page 374: ...Cat No W130 E1 05 C200H Programmable Controllers CPU01 E 03 E 11 E OPERATION MANUAL ...