HF Elfin-EG11 User Manual

4G_2G DTU Products Function
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AT+<CMD>[op][para-1,para-2,para-3,para-4…]<CR>
◼ AT+：Command message prefix
◼ CMD：Instruction string;
◼ [op] ：Instruction operator, specified as parameter setting or query
◆ "=" : Indicates parameter setting
◆ "NULL" : Indicates the query
◼ [para-n]: Input when parameter setting, such as query is not required
◼ <CR>: Terminator, carriage return, ASCII code 0x0a or 0x0d
<Notes>：
When user enter a command, the "AT+<CMD>" character is automatically echoed to
uppercase and the parameter portion remains unchanged.
➢ Response Massage
+<RSP>[op] [para-1,para-2,para-3,para-4…]<CR><LF><CR><LF>
◼ + : Response message prefix;
◼ RSP: Respons string, including:
◆ “ok” : Indicate success
◆ “ERR”: Indicate failure
◼ [op] ：=
◼ [para-n] : Return parameters when querying or error code when error
occurs
◼ <CR>: ASCII code 0x0d；
◼ <LF>: ASCII code 0x0a；
➢ Error Code
Error Code Description
Error Code
Notes
-1
Invalid command format
-2
Invalid command
-3
Invalid operator
-4
Invalid parameter
-5
Operation not allowed
2.4.2. AT Instruction Set
List of AT+ Instruction Set
Instruction
Description
<null>
Null
Management Instruction Set
H
Help
E
Open/Close Show Back Function
CMDPW
Set/Query AT command prefix character for sending AT command
in throughput mode.

HF Elfin-EG11 Specifications

General

Brand	HF
Model	Elfin-EG11
Category	Network Hardware
Language	English