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Chapter 7 – PING Services

Multi-Tech Systems, Inc. AT Commands for Wireless Modems with IP Connectivity (S000333B) 35

Chapter 7 – PING Services

Parameters Definitions

#PINGDELAY PING Delay Time

Definition: This command sets the waiting delay, in seconds, before an echo request is considered as a no reply.

It is also the delay between two echo requests (if PINGNUM > 1).

Values: From 1 to 255 inclusive. Default value is 1.

Syntax: Set Value: AT#PINGDELAY=<Value>

Get Value: AT#PINGDELAY? or AT#VPING, AT#VALL

#PINGNUM Number of PING Requests

Definition: This command sets the number of PING echo requests to issue to PINGREMOTE.

Values: From 1 to 255 inclusive.

Default value is 4.

Syntax: Set Value: AT#PINGNUM=<Value>

Get Value: AT#PINGNUM? or AT#VPING, AT#VALL

#PINGREMOTE IP Address of PING Request

Definition: Sets the IP address or alphanumeric ASCII text string, up to 120 characters long if DNS is available.

Values: 32-bit number is dotted-decimal notation (i.e., xxx.xxx.xxx.xxx) or

Alphanumeric ASCII text string up to 120 characters if DNS is integrated.

There is no default value for this parameter.

Syntax: Set Value: AT#PINGREMOTE=<Value>

Get Value: AT#PINGREMOTE? or AT#VPING, AT#VALL

#PING Start PING Request

Definition: Once an IP link is established, and if no other TCP/IP stack resource is active, this command sent by

the attached host directs the TCP/IP stack to start PING requests.

Values: Read parameters:

PINGDELAY

PINGNUM

PINGREMOTE

Syntax: AT#PING

Command Possible Responses

AT#PING

"wavecom.com" is alive : time = 900 ms

"wavecom.com" is alive : time = 800 ms

"wavecom.com" is alive : time = 1000 ms

NO answer from "wavecom.com"

"wavecom.com" is alive : time = 900 ms

"wavecom.com" is alive : time = 800 ms

"wavecom.com" is alive : time = 900 ms

Note: TCP/IP stack sends PINGNUM = 10 requests

AT#PING #CME ERROR: 38027

Note: The address of the remote has not been resolved by the DNS servers. The

TCP/IP stack is not able to reach the primary and secondary DNS servers or a

wrong remote address has been filled in.

AT#PING #CME ERROR: <value>

Note: An error has occurred during the PING requests.

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