Emerson PACSystems RX3i User Manual page 16

User Manual
GFK-2911E
IIN Bits
IPv4
LAN
LED
LIS
LLA
Object
PACSystems Machine
Edition
ST
ST Block
SOE
TCP/IP
Variance
Introduction
Indicators that are returned to the Master Station from the Outstation, in
general to describe conditions that are not point-related which may exist at
the Outstation.
Internet Protocol version 4 (IPv4) is the fourth version in the development of
the Internet Protocol (IP), and routes most traffic on the Internet. IPv4 is
described in IETF publication RFC 791.
Local Area Network
Light Emitting Diode
LAN Interface Status Bits are data provided by the module concerning the
health and status of its Ethernet interface. The status includes that of the
physical module as well as of the attached network.
The Lower Level Address of a DNP3 node, sometimes called its station
address.
A generic term used for referring to a collection of data points, or a single
data point, on a DNP device. An object can have a specific action on an
Outstation and all objects are defined in the DNP3 Specification.
PAC Machine Edition – used to configure, program and monitor RX3i
Systems.
Structured Text: a programing language supported by RX3i CPUs.
A program block within ST. In this application one uses a single ST Block to
convey a COMMREQ from the RX3i CPU to the EDS001 in order to set up all
its DNP3 parameters.
Sequence of Events: a generic term used to describe a mechanism that can
detect data change, then time-stamping each change for the purpose of
establishing the sequence in which the changes were detected.
The Transmission Control Protocol (TCP) is one of the core protocols of the
Internet Protocol suite (IP), and is so common that the entire suite is often
called TCP/IP. TCP provides reliable, ordered and error-checked delivery of a
stream of octets between programs running on computers connected to a
local area network, intranet or the public Internet. It resides at the transport
layer.
A specification sub-group of Group that typically refers to a format of the
data, or a specific sub-command to an action, as defined in the DNP3
Specification. Variance many times is a micro sub-category of Object and is
not unique when describing Objects and Groups.
Chapter 1
Sep 2019
10