Manual Supercom 646 GPRS rev. 04-02-2011
40
12.2 SMS
12.2.1 General syntax
12.2.1.1 Content of a command SMS sent to the central unit
Syntax:
[password]command[?] param1, param2, …
Details:
[ ] :
optional element
password:
if the SMS password is defined in the central unit, it must be specified when a command
is sent.
command:
name of the command (in either upper case or lower case)
command?:
name of the command followed by a question mark, request for a specific reply; some
commands do not automatically send a reply.
param1:
parameter
The password is case-sensitive (upper case/lower case).
The command is not case-sensitive. For example, you may use "
TEST
", "
test
" or "
Test
".
The password and the command name must be separated by at least one space.
When the question mark is used, it must immediately follow the command name without a space.
The command name (with or without?) and the first parameter must be separated by at least one space.
The parameters are separated by commas. The parameters of some commands can be optional.
12.2.1.2 Content of a reply SMS sent by the central unit
Syntax:
num_id command result 1, result 2, …
Details:
num_id :
central unit identification number
command:
the name of the command at the origin of the reply in upper case and without the final '?'
The results are separated by commas.
The results sent back depend on the command.
12.2.1.3 Processing of command SMS messages by the central unit
If a password is incorrect, the SMS will be disregarded and no reply sent back.
If the command is not recognised, an error message will be sent back to the originator in the form:
num_id
ERROR
command
UNSUPPORTED
If some parameters are not correct for the requested command, or if a fatal error occurred during execution
of the command, an error message is sent back to the originator in the form:
num_id
ERROR
command message
12.2.2 Commands
12.2.2.1 TEST
This command enables the working of the SMS, the GPRS module and the central unit in general to be veri-
fied.
The answer which is sent back contains information on the current status of the GPRS module and of the
central unit.
Содержание Supercom 646
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