AT Commands Reference Guide
80529ST10815A Rev.2– 2017-09-14
ReproductionforbiddenwithoutTelitCommunicationsS.p.A.writtenauthorization‐AllRightsReserved page23of233
+WS46
10
#QDNS
170
#SGACT
150
#SH
10
#SD
140 (DNS resolution + connection timeout set with AT#SCFG)
Command Issuing Timing
The chain ‘Command
Response’ shall always be respected and a new command must not be issued before
the module has terminated all the sending of its response result code (whatever it may be).
This applies especially to applications that “sense” the OK text and therefore may send the next command
before the complete code <CR><LF>OK<CR><LF> is sent by the module.
It is advisable anyway to wait for at least 20ms between the end of the reception of the response and the issue
of the next AT command.
If the response codes are disabled and therefore the module does not report any response to the command,
then at least the 20ms pause time must be respected.
During command mode, due to hardware limitations, under severe CPU load, the serial port can loose some
characters if placed in autobauding at high speeds. Therefore, if you encounter this problem fix the baud rate
with +IPR command.
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