Eaton easyE4 User Manual

R
Retention
Refers to the ability of operands to retain their
value (memory contents) in the event of a loss
of voltage
ROM (read-only memory)
Non-volatile read-only memory
Router
Routers are devices used to forward ("route")
requests from a network to the Internet (or to
another network). Routers provide a measure
of security for private networks, as nodes out-
side of the network will be unable to determ-
ine which specific computer requested the
data. This is because all the computers on the
private network will appear under the same IP
address on the Internet.
RTC
Real Time Clock
RxD
Receive cable for received data
S
SD card
Secure Digital memory cards are non-volatile,
rewritable flash data storage devices that are
used with Eaton and are commonly referred to
as microSD cards. Data written to these cards
is stored in a non-volatile manner that does
not require any additional (secondary) power.
SELV (safety extra low voltage)
Circuit in which no dangerous voltage occurs
even in the event of a single fault.
Server:
The term "server" is usually used to refer to
computers that provide services on a network.
Admittedly, however, this definition is not very
precise. More specifically, servers are
applications on a computer that are respons-
ible for providing or processing data. In fact,
every computer can provide such services.
Servers are not active in and of themselves.
They wait until they are addressed by a client,
after which they perform the corresponding
tasks. Each server application provides its ser-
vice on the network via a specific port.
Slot
Refers to a slot for a memory card
SmartWire-DT
Eaton communication system
SNTP
Simple Network Time Protocol
SSL/TLS
Secure Sockets Layer/ Transport Layer Secur-
ity
ST
Structured Text - programming method
Stroke
A hub is a device used to connect various net-
work devices together. Hubs broadcast all
data to all connected devices (devices con-
nected with a patch cable).
Subnet mask
A subnet mask is an IP address "filter." It has
the same syntax as an IP address. This mask
defines which computers can transfer data
between themselves within a network. This
also means that subnet masks define the max-
imum size of the corresponding subnetworks.
SWD
Abbreviation or SmartWire-DT
Switch
Switches are networking devices that are
more advanced than hubs. One of the main
features that sets them apart from the latter is
the fact that they are more "intelligent" and
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Eaton easyE4 Specifications

General

Brand	Eaton
Model	easyE4
Category	Relays
Language	English