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The
AD4ETH is a 4-channel Ethernet analogue input/alarm unit with a
built-in webserver allowing analogue input values to be viewed from
any web-browser. High and low alarms can be specified to generate
email or SNMP alerts. The AD4ETH also supports a wide range of
communication protocols such as TCP/IP ASCII, UDP/IP ASCII, SNMP2,
MODBUS TCP2, HTTP (WEB, WAP, XML, SOAP).
WEB
page
It
is possible to easy monitor the measured values and also to
configure AD4ETH over the Intranet interface. The pages are secured
by means of user name and password. It is possible to setup a
separate password for the configuration and another one for the
display of current values. Inputs are shown as numeric vales, bar
graph with colour coded alarm indications.
XML
file
It
is also possible to import all the values from AD4ETH in the XML
file format. This format is easy to process by the application or to
read by the web service.
WAP
page for PDA of mobile phone
AD4ETH
contains a simple WAP page with measured data. It is possible to
open this page in a mobile phone, PDA or another mobile device. Thus
the current status of the device can be viewed whenever needed.
Inserting
the current values into the WEB sites (HTTP GET)
AD4ETH
enables you to periodically call a script (for example PHP or ASP)
on a selected WEB server and to hand the measured values and other
parameters over to the server in the form of HTTP GET parameter. Thus
you can easily include the currently measured values directly into
your WEB site.
Current
values handing-over to the WEB service (HTTP POST, SOAP)
AD4ETH
is also able to periodically send the measured data as HTTP POST in
the format of XML SOAP (Simple Object Access Protocol). This way is
ideal for further processing of the measured values by the WEB
service waiting in a server on the Internet or Intranet. This data in
the XML format can be easily processed, e.g. in the.NET or PHP
environment – there is no need to program any communication
protocol, etc. The only thing than needs to be done is to process the
delivered XML file.
SNMP
protocol
The
SNMP protocol is used in large companies for the centralized
administration and monitoring of all hardware and technologies.
AD4ETH is able to communicate via this protocol and, according to the
setup, It sends SNMP traps when the pre-set critical limits are
exceeded. It is also able to periodically send traps with current values.
E-mail
According
to the setup, AD4ETH is able to inform the user via email that the
critical limits, pre-defined for individual channels, have been
exceeded. (Thanks to services provided by operators it is possible to
forward the e-mail easily to a mobile phone as an SMS message.)
TCP
or UDP protocol
AD4ETH
is also able to operate as the TCP client or TCP server or to
communicate via UDP. The Spinel protocol is used by AD4ETH in these
ways of communication. This way of communication is similar to the
serial link communication.
MODBUS
TCP protocol
AD4ETH
is also able to communicate via the standard industry protocol of
MODBUS TCP use by popular SCADA packages such as DAQFactory
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