Doc. Title
ST3940 User Manual
Concerning:
Rev.
Date (dd-mm-yy)
Page of Pages
Features and how to configure ST3940
1.06
0
18-6-19
22 of 54
It can be used only when UDP server is used.
If ‘0’ or empty, the device would use port 9000.
If not zero, the device can receive commands on port
DEV_PORT.
Reserved
‘0’
Reserved
‘0’
Reserved
‘0’
Reserved
‘0’
Reserved
‘0’
Reserved
‘0’
<Example>
[command]
ST600ADP;0123456789;02;T;T;0;;0;0;0;0;0;0
[response]
ST600ADP;Res;0123456789;309;T;T;0;;0;0;0;0;0;0
<ACK in case of UDP>
UDP is a protocol which does not check if the data has been transmitted successfully. So, the device checks completion
of sending with ACKdepending on UDP_ACK type.
ACK is sent by the server when the data is received.
If the ACK is not sent for more than 2 minutes after sending, the device recognizes that the data has not reached the
server and sends the data again.
Examples of ACK report
are as below.
String Format : “
ST600ACK
;0
123456789”
Device users are recommended to set ACK_TYPE to ‘1’ to confirm that all the data can be transmitted successfully.
Report Type
UDP_ACK=0
UDP_ACK=1
UDP_ACK=2
UDP_ACK=3
Alive
X
X
X
X
STT
X
O
X
X
Alert, Etc.
X
O
O
X
Emergency
X
O
O
O