At+ Maxsk; At+Tcpb; At+Tcpptb - Jinan USR IOT Technology USR-WIFI232-A2 User Manual

TCP timeout: module began to count when TCP channel did not receive any data, receive data purge
count.If the timing time exceed TCPTO, disconnect the TCP channel.If module work in TCP Client , it
will take the initiative to rewiring the TCP Server, If module work in the TCP Server, the TCP Client
need active reconnection.
4.13.2.2.26

AT+ MAXSK

Function: Set/Query maxima TCP connection;

Format:

Query Operation

AT+ MAXSK<CR>
+ok=<num><CR>< LF ><CR>< LF >
Set Operation

AT+ MAXSK =<num ><CR>
+ok<CR>< LF ><CR>< LF >
Parameters:

num: 1~32, default 32. maxima TCP connection;

When configure as TCP/Server, USR-WIFI232-A/B/C support maxima 32 TCP connections. If not
require so much connection, user can resetting this parameters.
4.13.2.2.27

AT+TCPB

Function: Open/Close TCPB function;

Format:

Query Operation

AT+TCPB<CR>
+ok=<sta><CR>< LF ><CR>< LF >
Set Operation

AT+ TCPB=<on/off><CR>
+ok<CR>< LF ><CR>< LF >
Parameters:

sta: TCPB enable status



After USR-WIFI232-A2 module boots up again, the setting will be effective.
4.13.2.2.28

AT+TCPPTB

Function: Set/Query TCPB port number;

Format:

Query Operation

AT+TCPPTB<CR>
+ok=<port><CR>< LF ><CR>< LF >
Set Operation

AT+ TCPB=<port><CR>
+ok<CR>< LF ><CR>< LF >
Parameters:

port: decimal ,<65535

Jinan USR IOT Technology Limited
USR-WIFI232-A2 User Manual
on, TCPB enable
off, TCPB disable
Page 58 of 76
http://www.usriot.com
tec@usr.cn