Rainbow-electronics GM862-QUAD-PY Manual de usuario descargar pdf (Pagina 16)

AT Commands Reference Guide

80000ST10025a Rev. 5 - 09/07/08

3.2.4 Command Response Time-Out

Every command issued to the Telit modules returns a result response, if response codes are enabled

(default). The time needed to process the given command and return the response varies, depending

on the command type. Commands that do not interact with the SIM or the network, and involve only

internal set up settings or readings, have an immediate response. Commands that interact with the

SIM or the network could take many seconds to send a response, depending on SIM configuration

(e.g., number of contacts stored in the phonebook, number of stored SMS), or on the network the

command may interact with.

In the table below are listed only the commands whose interaction with the SIM or the network could

lead to long response timings. When not otherwise specified, timing is referred to set command.

For phonebook and SMS writing and reading related commands, timing is referred to commands

issued after phonebook sorting is completed.

For DTMF sending and dialling commands timing is referred to module registered on network

(“AT+CREG?” answer is “+CREG: 0,1” or “+CREG: 0,5”).

For Python commands, timing is referred to commands issued with module in idle, flash memory not

full and not fragmented, and after the first Python command. The first Python command to be issued

causes a system initialization that could last a couple of minutes. Baud rate is fixed at 115200.

Command Estimated maximum time to get

response (Seconds)

+COPS 30 (test command)

+CLCK 15 (SS operation)

5 (FDN enabling/disabling)

+CLAC 5

+CPWD 15 (SS operation)

5 (PIN modification)

+CLIP 15 (read command)

+CLIR 15 (read command)

+CCFC 15

+CCWA 15

+CHLD 30

+CPIN 5

+CPBS 5 (FDN enabling/disabling)

+CPBR 5 (single reading)

15 (complete reading of a 250 records

full phonebook)

+CPBF 10 (string present in a 250 records full

phonebook)

5(string not present)

+CPBW 5

+CACM 5

+CAMM 5

+CPUC 5

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 433 434

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