Opticon ECB 1000 User Manual

Page 11

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Opticon Ethernet Converter - 11

2.3

Establishing a TCP/IP connection with Opticon handheld terminals

Writing an application for the Ethernet converter box is (almost) identical to writing an application with the
TCP/IP library that makes use of a dialup modem.

For more information about writing applications with the TCP/IP library and example applications, please refer to
the manuals of the 'TCP/IP library for Opticon Handheld terminals'.

The Ethernet converter box accepts almost all AT-modem commands. However there are few additional AT-
commands that are different or additional:

ATD… or ATDT…

Establish a connection between an Opticon handheld terminal (with TCP/IP library)
and an Ethernet Converter box.

Response:

<CR><LF>CONNECT<CR><LF>
<PPP frame><PPP frame>

Normally the ATD(T)-command should be made by the connect()-function of the
TCP/IP library after which the application continues the TCP/IP session.

ATIx

Returns the current software version

AT?

Shows all current settings

ATV0

Normal response codes: i.e. OK / ERROR

ATV2

Barcode reader response codes, in case an Opticon barcode reader is used to
configure the Ethernet box with AT-commands. <ESC>B or <ESC>E that will result in
a good or bad read sound.

AT+CPIN?

Returns: +CPIN: READY\r\n\r\nOK\r\n for GSM/GPRS modem simulation

AT+DISCOVERY

Returns IP and MAC address of all Ethernet boxes that are connected to the local
Ethernet.

Example response:

Searching...
192.168.0.2 00-12-6A-00-12-34 OSE_ETHERNETBOX
Done

AT+BAUDxxxxx

Configure a baud rate between 4800 and 230400bps (the OK response might be
returned at the new baud rate!)

AT+RESET

(Software) Resets the Ethernet-to-RS232 converter box

Note:
§ Disconnect a connection by sending '+++' with a 1-second pause before and after the command.

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