CSE-H25 User
’
s Manual Ver. 1.2
Sollae Systems Co., Ltd.
- 37 -
http://www.sollae.co.kr
AT Command State
During TCP disconnected, AT commands can be used
To use AT commands during the connection, required escape
sequence
Online State
During TCP connected, all serial data to CSE-H25 convert TCP
and send to Ethernet
6.4.1 Changing Online State to AT Command State
To change online state to AT command state during the connection(Online State), +++
string should be transmitted to CSE-H25 as following time interval.
When transm++ string to CSE-H25, +++ string will be sent to peer host.
The time from final data the first „+‟ data
of „+++‟ string
No data over 500ms(guard time)
time intervals between „+‟s
0~500ms
Time interval after receiving last „+‟
No data over 500ms (guard time)
Users can select whether “+++” data is transmitted or not by using AT+PSE command.
6.4.2 Changing AT Command State to Online State
If CSE-H25‟s state is in AT command state during TCP connection, CSE-H25‟s state can
be changed into online state by an ATO command.
6.5
Example of Configuration with AT Command
Serial Port
Description
AT+PLIP=192.168.1.200<CR>
▶
Setting LOCAL IP address
◀
<CR><LF>OK<CR><LF>
Command OK
AT+PGIP=192.168.1.254<CR>
▶
Setting GATEWAY IP address
◀
<CR><LF>OK<CR><LF>
Command OK
AT+PSM=255.255.255.0<CR>
▶
Setting SUBNET MASK
◀
<CR><LF>OK<CR><LF>
Command OK
AT+PLP=1470<CR>
▶
Setting LOCAL PORT
◀
<CR><LF>OK<CR><LF>
Command OK
AT+PTO=10<CR>
▶
Setting TIME OUT
◀
<CR><LF>OK<CR><LF>
Command OK
AT+PWP<CR>
▶
Saving setting value to Flash
Reset automatically
◀
<CR><LF>OK<CR><LF>
Command OK
