HF2111 GPRS Serial Server User Manual
Shanghai High-Flying Electronics Technology Co., Ltd
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“=” : The command requires parameters input;
“NULL”: Query the current command parameters setting;
[para-n]: Parameters input for setting if required;
<CR>:”Enter” Key, it’s 0x0a or 0x0d in ASCII;
Notes:
When input AT+Instruction, “AT+<CMD>” character will display capital letter
automatic and other
parts will not change as you input.
Response Message
+<RSP>[op] [para-1,para-2,para-3,para-
4…]<CR><LF><CR><LF>
+: Prefix of response message;
RSP: Response string;
“ok” : Success
“ERR”: Failure
[op] : =
[para-n]: Parameters if query command or Error code when error happened;
<CR>: ASCII 0x0d;
<LF>: ASCIII 0x0a;
Error Code
Table5.
Error Code Describtion
Error Code
Description
-1
Invalid Command Format
-2
Invalid Command
-3
Invalid Operation Symbol
-4
Invalid Parameter
-5
Operation Not Permitted
4.2.2.
AT+Instruction Set
Table6.
AT+Instruction Set List
Instruction
Description
<null>
NULL
Managment Instruction Set
E
Open/Close show back function
ENTM
Set product into transparent transmition mode
VER
Query product software version information
APPVER
Query customized software version information
RELD
Restore to factory default setting
Z
Re-start product
CFGTF
Save current setting as factory setting
FCLR
Clear saved factory setting
H
Help
UART Instruction Set
UART
Set/Query serial port parameters
UARTINTERVA L
Set/Query serial port frame time
UARTTYPE
Set/Query serial port type
