Chengdu Ebyte Electronic Technology Co., Ltd.
E78-915LN22S(6601) User Manual
Copyright © 2012–20 2 1 , Chengdu Ebyte Electronic Technology Co., Ltd.
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Bit1: 0-Not ACK, 1-ACK
Bit2: 0-not carried, 1-carried, indicating whether the downlink data carries the LINK
command response
Bit3: 0-not carried, 1-carried, indicating whether the downlink data carries the TIME
command response, only when the bit is 1, it means the time synchronization is
successful
Bit4~Bit7: Default 0, reserved
PORT: 1Byte, downstream transmission port
LEN: 1Byte, downlink data length
DATA: nByte, downstream data, when LEN=0, this field does not exist.
Example
AT+DTRX=1,2,10,0123456789
OK+SEND:03
OK+SENT:01
OK+RECV:02,01,00
means that the confirm data is sent successfully, the valid data received by the server
should be
"
0123456789
"
, and Downstream acknowledgment received.
Precautions
Access the network first, then send data
command
characters
Command
type
command format
response
DRX
(
receive data
)
test
command
AT+DRX=?
+DRX:<Length>,<Payload>
OK
query
command
AT+DRX?
+DRX:<Length>,<Payload>
OK
Parameter
Description
Return value:
Length: 0 means empty data packet;
Payload: hexadecimal string data;
OK: no abnormality in the received data packet;
Return value
description
Example
AT+DRX?
OK
Precautions
Receive data packets from the receive buffer, and clear the receive buffer;
command
characters
Command
type
command format
response
CCONFIRM
(
Set Upstream
Transmission
Type
)
test
command
AT+CCONFIRM=?
+CCONFIRM:
"
value
"
OK
query
command
AT+CCONFIRM?
+DRX:<Length>,<Payload>
OK
set command
AT+CCONFIRM =<value>
OK
Parameter
Description
<value>: as follows.
0: UnConfirmed up message
1: Confirmed up message
Return value
description
Example
AT+CCONFIRM=1
