Insys GSM 4.2 Compact 11-02-01-03-04.002 Manuale Utente

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Functions and their Configuration 
 
INSYS GSM 4.2  
INSYS GSM 4.2 compact 
 
56
 
 
 
 
 
 
 
 
 
 
 
 
Sep-06
 
The number of SMS storage locations which the INSYS GSM should consider during its 
query routine can be set in the HSComm software in the tab "Basic settings" in the group 
"GSM connection" in the entry field "Configured SMS storage locations".  
A problem may occur if there are more incoming SMS than SMS storage locations are 
queried. In this case, SMS are stored in the storage location which is not considered by 
the query and can therefore no longer be processed by the INSYS GSM. 
 
Note 
When the buffer of the SIM card is full, no further SMS messages 
will be accepted: 
 
Pertinent AT commands 
AT**SMSBUF 
Specification of existing SMS storage locations in the SIM card 
6.2.3  Automatic SMS processing 
When you activate automatic SMS processing, the INSYS GSM will check each incoming 
SMS for usability and the validity of the SMS (format, password, selective call accep-
tance
). 
The INSYS GSM processes each usable SMS, sends a response, if necessary, and deletes it 
from the SMS memory.  
SMS usable by the INSYS GSM: 
¾
  All SMS messages with a correct configuration password. 
¾
  All SMS messages with correct syntax and no configuration password. 
¾
  SMS messages starting with AT**
¾
  SMS messages which have the text "ACKN" as content 
¾
  SMS messages, where the content is an alarm message saved in the INSYS GSM 
(acknowledgement of alarms). 
If the SMS message can not be used by the INSYS GSM, the INSYS GSM will immediately 
delete it from the memory. The GSM engine is operated in the operation mode 
AT+CMGF=1 (SMS text mode). 
SMS processing through the application 
The INSYS GSM will not delete unknown SMS messages if in the HSComm software in 
the tab "Basic settings" in the group "GSM connection" the check box "Leave remote SMS 
in SIM buffer" is marked. End device applications can therefore use these SMS messages. 
(Operating mode AT**SMSRX=2), 
The SMS which are not processed by INSYS GSM stay in the buffer of the SIM card until 
they are retrieved by the application via the serial interface, and deleted.  
 
 
Note 
When the buffer of the SIM card is full, no further SMS messages 
will be accepted: 
 
Suggested solution for buffer overflow: 
1. 
Assign a configuration password.