Omron SYSMAC CV Series Operation Manual page 137

most-significant (bit/word)
nesting
Network Service Board
Network Service Unit
network support table
node
node number
noise interference
nonfatal error
NOT
NSB
NSU
octal
odd parity
OFF
OFF delay
offset
ON
ON delay
Glossary
See leftmost (bit/word).
Programming one loop within another loop, programming a call to a subroutine
within another subroutine, or programming an IF–ELSE programming section
within another IF–ELSE section.
A device with an interface to connect devices other than PCs to a SYSMAC NET
Link System.
A Unit that provides two interfaces to connect peripheral devices to a SYSMAC
NET Link System.
Tables of settings used to establish operating parameters for SYSMAC LINK
and SYSMAC NET Link Systems.
One of the positions in a LAN. Each node incorporates a device that can commu-
nicate with the devices at all of the other nodes. The device at a node is identified
by the node number.
A number used to identify a node on a network. The node number of a CV-series
PC is called the "unit number" in the PC Setup.
Disturbances in signals caused by electrical noise.
A hardware or software error that produces a warning but does not stop the PC
from operating.
A logic operation that inverts the status of the operand. For example, AND NOT
indicates an AND operation with the opposite of the actual status of the operand
bit.
An acronym for Network Service Board.
An acronym for Network Service Unit.
A number system where all numbers are expressed in base 8, i.e., numbers are
written using only numerals 0 through 7.
A communications setting that adjusts the number of ON bits so that it is always
odd. See parity.
The status of an input or output when a signal is said not to be present. The OFF
state is generally represented by a low voltage or by non-conductivity, but can be
defined as the opposite of either.
The delay between the time when a signal is switched OFF (e.g., by an input
device or PC) and the time when the signal reaches a state readable as an OFF
signal (i.e., as no signal) by a receiving party (e.g., output device or PC).
A positive or negative value added to a base value such as an address to specify
a desired value.
The status of an input or output when a signal is said to be present. The ON state
is generally represented by a high voltage or by conductivity, but can be defined
as the opposite of either.
The delay between the time when an ON signal is initiated (e.g., by an input de-
vice or PC) and the time when the signal reaches a state readable as an ON sig-
nal by a receiving party (e.g., output device or PC).
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