User's Guide

Guia de usuário Edge-30R+ Autoid / Edge-30R-N+ Autoid

Rev. 13

77 de 92

11.2 TCP/IP connection, disconnection, and reconnection logic

Readers have the behavior of a Server, that is, it accepts TCP/IP connections on the user-configured

port. Below are some important points regarding the reader server behavior:

• The reader accepts up to six (6) simultaneous connections on the configured port;

• For reconnection in case of passive disconnection, the Keepalive time interval must be

respected.

• If after an already established connection, the physical link of the network drops (LED LINK of

the PCI Interface erased), that is, there is no more physical connection between the reader and

the host, it is recommended an attempt to reconnect by the host.

For connection/disconnect/reconnection logic it is recommended to constantly check the Keepalive

String + Keepalive end of line sent by the reader constantly even when there is no tag, so it is possible

to check if a connection has been lost. The send interval of keepalive is configured in Keepalive time

interval, it is recommended a timeout interval of receiving data by the host of a time value equal to or

greater than the value configured in this parameter.

Below is a simple flowchart with the host logic of receiving the data sent by the reader.

Makes socket connection on

configured port

Processes the

received data

Connection?

Sim

Não

Sim

Não

Start

Keepalive

or tags?

Destroys the

current

connection