Westermo GS-01 User Manual download pdf (Page 37)

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If the command is correct, the following indication message is sent:

+CPMS: <used1>,<total1>,<used2>,<total2>

When <mem1> is selected, all following +CMGL, +CMGR and +CMGD commands are

related to the type of SMS stored in this memory.

Application to GSM AT+CPMS=? Possible message storages

GSM to application +CPMS: ((”SM”,”BM”), Read, list, delete: SMS or

(”SM”)) CBM. Write,send: SMS

Application to GSM AT+CPMS? Read it

GSM to application +CPMS: ”SM”, Read, write…SMS from/to

3, 10,”SM”,3,10 SIM 3 SMS are stored in

OK SIM. 10 is the total available

SIM memory.

Application to GSM AT+CPMS=”AM” Select false message storage

GSM to application +CMS ERROR: 302

Application to GSM AT+CPMS=”BM” Select CBM message storage

GSM to application +CPMS: 2, 20,3,10 Read, list,delete CBM from

OK RAM. 2 CBM are stored in

RAM

Application to GSM AT+CPMS? Read it

GSM to application +CPMS: ”BM”, 2, 20, Read, list,delete CBM from

”SM”,3,10 RAM. Write SMS to SIM.

+CMGF – Preferred Message Format

The formats implemented are the text mode and the PDU mode.

In PDU mode, a complete SMS Message including all header information is passed as a

binary string (in hexadecimal format, so only this set of characters is allowed:

{‘0’,’1’,’2’,’3’,’4’,’5’,’6’,’7’,’8’,’9’, ‘A’, ‘B’,’C’,’D’,’E’,’F’}).

Each pair or characters is converted to a byte (ex: ‘41’ is converted to the ASCII

character ‘A’, which ASCII code is 0x41 or 65).

In Text mode, every commands and responses are in ASCII characters.

The chosen format is stored in EEPROM by the command +CSAS.

Application to GSM AT+CMGF? Current message format

GSM to application +CMGF: 1 Text mode

Application to GSM AT+CMGF=? Possible message format

GSM to application +CMGF: (0-1) Text or PDU modes are available

Example to send a SMS Message in PDU mode:

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 55 56

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Westermo GS-01 User Manual Page 37