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AT COMMAND CONFIGURATION GUIDE

1 SCOPE

This configuration guide describes the AT Command Set used with SerialComm’s ETH-SER-EE9 Serial Device Server (Ethernet to Serial Converter). Use of the AT Command Set requires an active and open virtual COM port accessing the ETH-SER-EE9.

2 AT COMMAND SET

The ETH-SER-EE9 can be configured by the serial port using the AT Command Set. The AT Command Set is a standard configuration interface that configures and displays the main functions of ETH-SER-EE9. It is an option to use the AT Command Set and is not necessary if configuring the Ethernet port with the VSP software management system and built in browser-based configuration tool. The AT Command Set is useful if you are using SCM (Software Configuration Management) or your own software to configure the ETH-SER-EE9. In order to use the AT Command Set it is necessary to have an established and working virtual COM port.

2.1 AT COMMAND TYPE

AT Commands are supported by the ETH-SER-EE9. They are case sensitive and always begin with "AT" and end with "\r\n" (Enter/Line Feed). Return values and the format of the parameter description are fixed. There are three types of AT Commands; Non-parameter Command, Query Command, and Parameter Command.

Non-parameter Command: This command type is the simplest type; no parameters are required. The format is AT+ Space+[command]\r\n. For example, the quit command is AT+Space+QUIT\r\n.

Query Command: This command type is used for querying the configuration command. The format is AT+Space+[command]?\r\n. For example, the name command is AT+NAME? \r\n.

Parameter Command: This is the most widely used format. It is used to enter configuration parameters. The format is AT+Space+[command]=[],[],[]..r\n. For example, the IP command is AT+IP=192.168.1.254r\n.

2.2 TYPICAL COMMAND RESPONSES

The following table shows the typical command errors and successful responses:

Type Condition Return Value
Incorrect info No Login No Login! ERROR
Command does not have an “AT” Not Supported! ERROR
“AT+LOGIN” Login, password incorrect ERROR
Command non-existent Not Supported! ERROR
When configure parameters, such as theparameter type is incorrect or input parameter was out of range ERROR
Input parameters quantity less than the required parameters ERROR
Configure the display-only parameters Not Supported! ERROR

Correct info

Query command, display the current value display the correct parameter,OK
Parameters configure successful OK

2.3 AT COMMAND DEFINITION TABLE

This table defines the supported AT Commands:

NO. AT Command Operation Description Parameters Description Function Description
1 LOGIN At +Space+login= "N" N consists of letters and/or numbers and the length is less than 30 characters. It is case sensitive If the user name and password is correct, then you can enter AT commands
2 QUIT AT+Space+QUIT Quit AT operation.   If did not restart the device, operation disable Use to query the parameter
3 ETH AT+Space+ETH= "N" N is "0-N" N is the network card subtracted by 1.  Used with multiple network cards Set the network card. Support multiple network cards
AT+Space+ETH? Display current network card
4 COM AT+Space+COM= "N" N is corresponding serial port Set serial port, used with multiple serial ports.
AT+Space+COM? Display current serial port
5 SES AT+Space+SES= "N" N are sessions,  range:0-3, total 4 sessions, default is 0 Configure and display current session
AT+Space+SES? Display current session
6 ECHO AT+Space+ECHO="N" N is 0 or 1. If N is 1 supports Echo.  IF N is 0, does not support echo Set AT command echo or not
AT+Space+ECHO? Display support echo or not
7 DEF AT+Space+DEF No parameter Default factory
8 RBT AT+Space+RBT No parameter Device restart
9 SAVE AT+Space+SAVE No parameter Save current parameter and write into flash or eeprom
10 VER AT+Space+VER No parameter Display the version of software and hardware
11 TYPE AT+Space+TYPE= "N" N arecharacters including letters, digits, dash ('-') and underscore ('_'). No more than 30 characters.  It is case sensitive Set or display description information
AT+Space+TYPE? display description information
12 NAME AT+Space+NAME="N" N arecharacters including letters, digits, dash ('-') and underscore ('_').  No more than 30 characters.  It is case sensitive Set or display name information
AT+Space+NAME? Display name information
13 MAC AT+Space+MAC? Display MAC address Please did not modify the MAC address
14 IPM AT+Space+IPM="N" N is 0 or 1.  0 is dynamic IP, 1 is static IP Set or display dynamic or static IP mode
AT+Space+IPM? Display current IP mode
15 IP AT+Space+IP= "N" N is a legal IP address, can set as octal, decimal or hexadecimal, but display is decimal Set or display IP address, save it as configured address. Effect or not, it is up to IP mode
AT+Space+IP? Display current IP address
16 MASK AT+Space+MASK="N" N is a legal Mask address, can set as octal, decimal or hexadecimal, but display is decimal Set or display the Mask address. Save it as configured address. Effect or not, it is up to IP mode
AT+Space+MASK? Display current Mask address
17 GATE AT+Space+GATE= "N" N is a legal Gateway address, can set as octal, decimal or hexadecimal, but display is decimal Set or display Gateway address, save it as configured address. Effect or not, it is up to IP mode
AT+Space+GATE? Display current Gateway address
18 DNSM AT+Space+DNSM= "N" N is 0 or 1. 0 is the DNS working mode as static, 1 is DNS working mode as dynamic Set or display the DNS address, save it as configured address. Effect or not, it is up to IP mode
AT+Space+DNSM? Display current DNS working mode
19 DNSA AT+Space+DNSA="N" N is a legal DNS address. You can set as octal, decimal or hexadecimal, but display is decimal Set or display the DNS address.  Save it as configured address. Effect or not, it is up to IP mode
AT+Space+DNSA? Display current DNS address
20 SYSWM AT+Space+SYSWM="N" N is 0 or 1.   0 is in low consumption, 1 is in high consumption Set or display system working mode
AT+Space+SYSWM? Display system working mode
21 SESE AT+Space+SESE= "N" N is 0 or 1.  0 is session enable valid, 1 is session enable invalid Set or display the session.  You can just set the session when the session is enabled
AT+Space+SESE? Display the status of session enable
22 WM AT+Space+WM= "N" N is 0, 1, 2 or 3. 0 is UTP mode, 1 is TCP Server mode, 2 is TCP Client mode and 3 is TCP Auto mode The setting is available in RealCOM, Socket and Pair Connection modes
AT+Space+WM? Display current working mode
23 SESS AT+Space+SESS? Display is 0, disconnect, 1, Must be connected Display the information after the session connection
24 LP AT+Space+LP= "N" N is an integer from "1—65535". Includes 1 and 65535 Set or display Destination port information
AT+Space+LP? Display Destination port information
25 DAF AT+Space+DAF= "N" N is 0 or 1. 0 is the current IP address, 1 is the current domain name address Set or display the current IP address of the current session
AT+Space+DAF? Display the current format of destination address (IP address, domain name address)
26 DIP AT+Space+DIP= "N" If DAF=0 then can set DIP value, N as a legal IP address Set or display the current IP address of the current session
AT+Space+DIP? Display the destination IP address.  Display the current IP address.  N is a legal Mask address and can be the set as octal, decimal or hexadecimal, but display is decimal
27 DDN AT+Space+DDN= "N" If DAF=1 then can set DDN value.   N is a legal domain name address, including letters, digits, dash ('-') and underscore ('_').  No more than 30 characters. It is case sensitive Set or display the current domain name address of the current session
AT+Space+DDN? Display the current domain name address
28 DP AT+Space+DP= "N" N is a integer in "1—65535", includes 1 and 65535 Set or display the information of destination port number
AT+Space+DP? Display port number information
29 CM AT+Space+CM= "N" N is 0 or 1. 0 is connect immediately(power on, connect).  1 is"trigger mode"(It is available once in working mode in the TCP client or PPPOE mode.)  0 is  keep connection Set or display the information of the connection mode
AT+Space+CM? Display session’s connection mode (Trigger or Connect immediately)
30 KAT AT+Space+KAT= "N" N is a integer in "1—65535", including 1 and 65535 Set or display the time of keep-live
AT+Space+KAT? Display keep-live time
31 COMM AT+Space+COMM= "N" N is 0 or 1. 0 is half-duplex, 1 is full-duplex Set or display serial working mode
AT+Space+COMM? Display serial working mode (half or full duplex)
32 RCE AT+Space+RCE="N" N is 0 or 1.  0 is RealCom close mode, 1 is RealCom open mode Set or display the RealCom working mode
AT+Space+RCE? Display RealCom information
33 BR AT+Space+BR? Display baud rate Set or display the serial baud rate
AT+Space+BR= "N" Set baud rate N to 300,600,1200,2400,4800,9600,19200,38400, 57600 or 115200
34 DB   AT+Space+DB="N" N is 5, 6, 7 or 8. The data bits. If in 5bit, can transfer maximum decimal of 31, hexadecimal 1F.  If in 6 bit, can transfer maximum decimal of 63, hexadecimal 3F.  If in 7 bit, can transfer maximum decimal of 127, hexadecimal 7F.  If in 8 bit, can transfer maximum decimal of 255, hexadecimal FF Set or display the length of the serial data bits
AT+Space+DB? Display serial data bit
35 PT AT+Space+PT= "N" N is 0, 1, 2 or 3. 0:none 1:even    2:odd   3:space  4:mark      Set display parity: (0:none 1:even 2:odd   3:space and 4:mark)
AT+Space+PT? Display parity
36 SB AT+Space+SB= "N" N is 0 or 2.
0 is 1 bit; 2 is 2 bit
Set or display stop bits (0:1bit and 2:2bit)
AT+Space+SB? Display stop bit
37 LEN AT+Space+LEN= "N" N is the length of character string, range is 1-1024
includes 1, 1024
Set or display the information of the serial data frame
AT+Space+LEN? Display the length of the serial data frame
38 DLY AT+Space+DLY= "N" N is the length of the character string, range is 1-500 includes 1, 500 Set or display the length of the character string
AT+Space+DLY? Display the length of  character string
39 UN AT+Space+UN= "N" N is user name, it consists of letters and/or numbers. It is casesensitive Set user name
40 PWD AT+Space+PWD= "N" N is password, it consists of letters and/or numbers, it is casesensitive Set password
41 AIMC AT+Space+AIMC= "N" N is 0 or 1. 0 is CtrlBreak inactive, 1 is CtrlBreak active. With N = 1, press"Ctrl+Break", to enter hyper terminal Set or display the information of CtrlBreak
AT+Space+AIMC? Display the status of CtrlBreak
42 AIMS AT+Space+AIMS= "0/1+Space+xx-xx-xx" xx value is 01-1F. if the format is "0+Space+xx-xx-xx" then just require to close this function.  The format can as simple as "0+Space+0".  If you want to zero clear, can set all xx to 0 (must be 0).  If the format is "1+Space+xx-xx-xx", it opens the trigger mode of character string, and sets the character string. Set or display the trigger mode of character string
AT+Space+AIMS? Display the information of character string
43 CBOT AT+Space+CBOT= "N" N is CtrlBreak default output time, range is 0-60000 Set or the display CtrlBreak default output time
AT+Space+CBOT? Display CtrlBreak default output time

When using DEF command to default factory it must be used with the SAVE and RBT commands, otherwise DEF is ineffective.

First enter into AT command mode and enter the input password. After entering into AT command mode, it the password is incorrect, it will forbid quit and you will need to enter the password again. If there is no operation within 5 minutes, system will forbid user quit to AT command, and you will need to enter again. Between AT and the next AT command, there must be 1 space. AT commands are case sensitive.

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