| A low cost, web server
module with 48 programmable digital I/O ports, an
integrated Ethernet interface, RS232 serial
interface and EEPROM file system. |
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| PicoServ HDI
MOdule | The
PicoServ HDI miniature web server module is an
‘Internet engine’ designed to be able to provide a
web browser based interface over a LAN or the
internet in a small space, at low power, at low
cost and with minimal design effort.
The
PicoServ HDI supports dynamic web pages enabling
reading and writing of the I/O port values from a
standard web browser.
Dynamic web pages are
supported using an innovative and simple to use
method which allows the real-world input and
output port
values to be displayed or changed
using only simple HTML techniques.
The
EEPROM file storage area can support almost any
type of file including HTML, GIF, JPEG, and JAVA,
and means that only standard web authoring
techniques are required to
provide an eloquent
and professional browser based interface for
almost any system.
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Digital I/O
Ports
PicoServ HDI provides 48 on-board
Digital I/O ports, programmable as inputs or
outputs.
The TTL level ports have a 50mA
sink/source drive capability per output and a
maximum
drive of 600mA per module.
The
digital I/O ports may be read, set or configured
using either the built-in web server
or
alternatively via a simple UDP
interface.
RS232 Serial
Port
A general purpose full duplex
asynchronous RS232 serial port allows
communication with
an off-board RS232 device.
Web browser or UDP/SCPI commands can be used to
send
data to and read data from the serial
port.
IEE 488.2 / SCPI
Interface
In addition to the internal
web server the PicoServ HDI module implements an
IEE 488.2
/ SCPI over IP/UDP protocol for
reading and setting the digital I/O ports and
other system
parameters from applications other
than a web browser. The IEE 488 / SCPI
command
structure makes integration of the
PicoServ HDI into test and measurement
environments
particularly straight
forward. |
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