Rainbow-electronics GM862-QUAD-PY Bedienungsanleitung PDF herunterladen (Seite 10)

GM862-QUAD / PY Software User Guide

1vv0300747 Rev. 3 - 10/07/07

2.2 Command Response Timeout

Every command issued to the Telit GM862-QUAD / PY returns a result response if response codes

are enabled (default) (see command ATQn). The time needed to process the given command and

return the response varies from command to command and may depend also from the network on

which the command may interact. As a result every command is provided with a proper timeout time, if

this time elapses without any result from the operation, then the ERROR response is reported as if the

operation was not successful.

The timeout time is quite short for commands that imply only internal set up commands, but may be

very long for command that interact with the network (or even Networks).

NOTE: In case no response is received after the timeout time has been elapsed, then try

repeating the last command and if still no response is received until the timeout time, then an

Unconditional Shutdown MUST be issued and then the device shall be powered ON again.

In the table below are listed all the commands whose timeout differs from the default 100 ms and their

effective timeout is reported:

Command Time-Out (Seconds)

+CBST 0.2

+CR 0.2

+CRC 0.2

+CRLP 0.2

+CSCS 0.2

+CEER 5

+CGMI 5

+CGMM 5

+CGMR 5

+CGSN 20

+CIMI 20

+CNUM 20

+CREG 5

+COPS 180

+CLCK 180

@CLCK 180

+CPWD 180

+CLIP 180

+CLIR 180

+CCFC 180

+CCWA 20

+CHLD 20

+CUSD 180

+CAOC 20

+CSSN 20

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Rainbow-electronics GM862-QUAD-PY Bedienungsanleitung Seite 10