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5.1 Introduction
Document AMS8061EN-10112-1.29 - © NARDA 2021
5 – Command protocol
This chapter provides information about the communications protocol of the
AMS-8061 Area Monitor System via mobile phone using SMS (Short
Message System) or through RS232, USB, Ethernet by means of Windows
Hyper Terminal or similar applications.
The AMS-8061 station can be reached by any GSM mobile phone and the
commands sent via SMS will enable the User to change the settings or
query various functions of the station.
The commands have the following general format:
#SMQCommand(parameters)*
# = opens the command string;
SM = string always included;
Q = ? for query commands;
S for setting commands ;
Command = command string;
(parameters) = value of setting parameters (if any);
* = closes the command string.
The commands available via SMS message are divided into three main
categories:
•
Query COMMANDs;
•
Setting COMMANDs.
•
Modem COMMANDs.
Expect of "EVN", "EVNL", "EVNR" and "BNDALL" (not present on
SMS) all the commands are available on SMS, Modem, RS232, USB,
Ethernet.
Every SMS sent to the AMS-8061 must contain as a first command the
invitation to authenticate the device password. This is to protect the
station for undesired access.
Therefore every SMS, to be processed correctly, must start with the string:
#SM?IDN psw*
Where psw is the device password set for the station (the default password
is PASSPMM).
Example: to request the last reading (average value) the SMS message to
be sent to the AMS-8061 with the password set by the factory is as follows:
#SM?IDN PASSPMM*#SM?LFA*
Any command sent via RS232, USB, Ethernet immediately rouses the
microcontroller. However, because of the peculiarity of the stop
status, in this case the command is lost and must be sent again in
order to be carried out. This is done automatically by the 8061SW-02
software and should be taken into consideration by the User in
developing any custom software.
Obviously, this does not occur in case of commands issued via SMS
or in case of connection via modem, as the microcontroller is always
on when the GSM is on stand-by.
where:
SMS Messages and Commands
5-1
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