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Glossary
IOM (Area)
A collective memory area containing all of the memory areas that can be ac-
cessed by bit, including timer and counter Completion Flags. The IOM Area in-
cludes all memory area memory addresses between 0000 and 0FFF.
JIS
An acronym for Japanese Industrial Standards.
jump
A type of programming where execution moves directly from one point in a pro-
gram to another, without sequentially executing any instructions in between.
Jumps in ladder diagrams are usually conditional on an execution condition;
jumps in SFC programs are conditional on the step status and transition con-
dition status before the jump.
LAN
An acronym for local area network.
least-significant (bit/word)
See
rightmost (bit/word)
.
LED
Acronym for light-emitting diode; a device used as for indicators or displays.
leftmost (bit/word)
The highest numbered bits of a group of bits, generally of an entire word, or the
highest numbered words of a group of words. These bits/words are often called
most-significant bits/words.
link
A hardware or software connection formed between two Units. “Link” can refer
either to a part of the physical connection between two Units or a software con-
nection created to data existing at another location (i.e., data links).
link parameter table
See
common link parameter table
.
Link System
A system used to connect remote I/O or to connect multiple PLCs in a network.
Link Systems include the following: SYSMAC BUS Remote I/O Systems, SYS-
MAC BUS/2 Remote I/O Systems, SYSMAC LINK Systems, Host Link Sys-
tems, and SYSMAC NET Link Systems.
Link Unit
Any of the Units used to connect a PLC to a Link System. These include Re-
mote I/O Units, SYSMAC LINK Units, and SYSMAC NET Link Units.
load
The processes of copying data either from an external device or from a storage
area to an active portion of the system such as a display buffer. Also, an output
device connected to the PLC is called a load.
local area network
A network consisting of nodes or positions in a loop arrangement. Each node
can be any one of a number of devices. This kind of network usually operates
over a small area such as a group of offices or a factory floor.
local network table
A table that specifies all of the networks that a PLC belongs to and the unit
numbers of the Units connecting the PLC to each of these networks.
master
In a SYSMAC NET Link System, a Unit specified to manage network commu-
nications.
master number
A number assigned to a master in a SYSMAC NET Link System. This number
is different from the unit number.
MCR Unit
Magnetic Card Reader Unit.
megabyte
A unit of storage equal to one million bytes.
memory area
Any of the areas in the PLC used to hold data or programs.
Summary of Contents for CS1W-SLK11-21 - 06-2004
Page 1: ...Cat No W367 E1 02 SYSMAC CS1W SLK11 21 SYSMAC LINK Units...
Page 2: ...CS1W SLK11 21 SYSMAC LINK Units Operation Manual Revised June 2004...
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Page 170: ...153 Appendix B Dimensions CS1W SLK11 Optical SYSMAC LINK Unit Unit mm...
Page 171: ...154 Dimensions Appendix B CS1W SLK21 Coaxial SYSMAC LINK Unit Unit mm...
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