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Glossary
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system error
An error generated by the system, as opposed to one resulting from execu-
tion of an instruction designed to generate an error.
system error message
An error message generated by the system, as opposed to one resulting
from execution of an instruction designed to generate a message.
TC area
A data area that can be used only for timers and counters. Each bit in the TC
area serves as the access point for the SV, PV, and Completion flag for the
timer or counter defined with that bit.
TC number
A definer that corresponds to a bit in the TC area and used to define the bit
as either a timer or a counter.
terminal instruction
An instruction placed on the right side of a ladder diagram that uses the final
execution conditions of an instruction line.
terminator
The code comprising an asterisk and a carriage return (* CR) which indicates
the end of a block of data, whether it is a single-frame or multi-frame block.
Frames within a multi-frame block are separated by delimiters.
timer
A location in memory accessed through a TC bit and used to time down from
the timer’s set value. Timers are turned ON and reset according to their ex-
ecution conditions.
TM area
A memory area used to store the results of a trace.
transmission distance
The distance that a signal can be transmitted.
TR area
A data area used to store execution conditions so that they can be reloaded
later for use with other instructions.
trace
An operation whereby the program is executed and the resulting data is
stored in TM memory to enable step-by-step analysis and debugging.
transfer
The process of moving data from one location to another within the PC, or
between the PC and external devices. When data is transferred, generally a
copy of the data is sent to the destination, i.e., the content of the source of
the transfer is not changed.
trigger address
An address in the program that defines the beginning point for tracing. The
actual beginning point can be altered from the trigger by defining either a
positive or negative delay.
UM area
The memory area used to hold the active program, i.e., the program that is
being currently executed.
Unit
In OMRON PC terminology, the word Unit is capitalized to indicate any prod-
uct sold for a PC System. Though most of the names of these products end
with the word Unit, not all do, e.g., a Remote Terminal is referred to in a col-
lective sense as a Unit. Context generally makes any limitations of this word
clear.
unit number
A number assigned to some Link Units and Special I/O Units to facilitate
identification when assigning words or other operating parameters to it.
Содержание SYSMAC C200H
Страница 1: ...OPERATION MANUAL C200H CPU01 E 03 E 11 E SYSMAC Programmable Controllers Cat No W130 E1 05 ...
Страница 2: ...C200H Programmable Controllers CPU01 E 03 E 11 E Operation Manual Revised June 2003 ...
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Страница 8: ...TABLE OF CONTENTS ix Glossary 345 Index 363 Revision History 369 ...
Страница 342: ...336 Programmer Program Date Page Word Contents Notes Word Contents Notes Data Storage ...
Страница 374: ...Cat No W130 E1 05 C200H Programmable Controllers CPU01 E 03 E 11 E OPERATION MANUAL ...