ST3500 User Manual
17
This command can be applied from software version 22.
ACK in case of UDP
UDP is protocol that doesn’t check whether the data is transmitted successfully. So, the device checks
completion of sending with ACK depending on UDP_ACK type.
ACK is sent by server when the data is received.
If the ACK is not sent during more than 2 minutes after sending, the device recognizes the data was not
reached to server and sends the data again.
Examples of ACK report
are as below.
String Format : “
ST3500ACK
;850000”
Zip Format :
0x15
0x85 0x00 0x00
It is recommended ACK_TYPE is set to ‘1’ to confirm all data can be transmitted safely.
Report Type
UDP_ACK=0
UDP_ACK=1
UDP_ACK=2
UDP_ACK=3
Alive
X
X
X
X
STT
X
O
X
X
Event, Alert, Etc.
X
O
O
X
Emergency
X
O
O
O
4-7. Set Parameters of Main Voltage
HDR
DEV_ID
VER
CHR_STOP_THRES_12
DECIDE_BAT_12
OPERATION_STOP_THRES_12
IGNDET_H
IGNDET_L
● Definition
: Set some value of main voltage.
Field
Definitions Remark
HDR
“ST3500MBV” Command type
DEV_ID
6 char.
Device ID
