Publication 1747-UM005B-EN-P - March 2006
Preface
3
Half-duplex
-
a mode of operation for a point-to-point or multi-point
baseband link with two physical circuits, in which messages or
transmission blocks can be sent in one direction or the other, but not
both at the same time.
Modem
-
Modulator/demodulator. Equipment that connects data
terminal equipment to a communication line.
RAM
-
random access memory. The type of memory in which each
storage location is by X/Y coordinates, as in core or semiconductor
memory. (Tape or bubble memory cannot be random access.) Thus,
the data access time is independent of the location of the data. Unless
stated otherwise, RAM usually implies read/write and volatile.
RS-232-C
-
an EIA standard that specifies electrical, mechanical, and
functional characteristics for serial-binary communication circuits in a
point-to-point link.
RS-422
-
an EIA standard that specifies electrical characteristics of
balanced-voltage digital interface circuits in a point-to-point link.
RS-423
-
an EIA standard that specifies electrical characteristics of
unbalanced voltage digital interface circuits in a point-to-point link.
RS-485
-
an EIA standard that specifies mechanical and functional
characteristics for digital interface circuits. This standard is used in
combination with either RS-422 or RS-423.
SLC 500
controller -
the SLC 500 family of fixed and modular
controllers.
Conventions Used in This
Manual
The following conventions are used throughout this manual.
•
Bulleted lists such as this one provide information, not
procedural steps.
•
Numbered lists provide sequential steps or hierarchical
information.
•
Bold
type is used for emphasis
Summary of Contents for 1747-KE
Page 1: ...DH 485 RS 232C Interface Module Catalog Number 1747 KE User Manual AB Parts ...
Page 4: ...Publication 1747 UM005B EN P March 2006 2 Summary of Changes Notes ...
Page 12: ...Publication 1747 UM005B EN P March 2006 4 Preface ...
Page 26: ...Publication 1747 UM005B EN P March 2006 2 4 Quick Start ...
Page 88: ...Publication 1747 UM005B EN P March 2006 7 4 Interpret the LED Indicators ...
Page 116: ...Publication 1747 UM005B EN P March 2006 8 28 Application Examples ...
Page 120: ...Publication 1747 UM005B EN P March 2006 A 4 Specifications ...
Page 130: ...Publication 1747 UM005B EN P March 2006 C 6 Lithium Battery Replacement Handling and Disposal ...
Page 134: ...Publication 1747 UM005B EN P March 2006 D 4 Interface Module Configuration Worksheets ...
Page 138: ......