Doc:MSGB102A0205.doc 15/07/11 P. 18/20
Connection via GSM modem
To make a remote connection through the GSM cellular network a GSM modem needs to be connected to
the ATL and a second, traditional or GSM modem has to be connected to the PC.
Lovato guarantees correct operation of the connection using GSM modems of the following type:
•
Funkanlagen Falcom A-2D
This type of modem is highly versatile and allows access to functions that are not normally possible with a
traditional modem (SMS, E-mail). However, though taking place at 9600 bps, transmission via ether needs
longer signal transfer times, to the disadvantage of communication speed.
Though very simple in conception, connection via GSM modem requires that the installer have a
minimum of experience concerning the problems connected with serial communication, modem
programming, types of telephone lines, etc. In an attempt to simplify the configuration procedure as
far as possible, we have subdivided the operations to be carried out in the following steps:
1. Configuration of the GSM modem at the ATL end
From the ATL end the modem must be configured before it can be used. Configuration serves to
implement the following functions:
•
Disable the echo
•
Set a fixed communication speed at 9600 baud
•
Disable the PIN request after switch on
•
Set the SMS service provider number
•
Set the SMS mode on ‘Text mode’
•
Permanently store the two previous settings as default at switch on
To make these configurations the GSM modem to be connected to the ATL should be momentarily
connected to the PC with its standard cable. Then start the PM.EXE program (supplied together with this
software) and press the
GSM modem program
button. Wait for the confirmation message and then
disconnect the GSM modem from the PC.
Important:
A SIM-CARD enabled for data transmission is needed to make the GSM modem work. A normal
SIM-CARD for cell phone does not work if used with the GSM modem. Contact the SIM-CARD
Supplier to have it enabled. If the SIM card has different phone numbers for voice and data, use
the phone number for data.
2. ATL
configuration
Also the ATL needs configuration to be able to converse with the modem.
•
Connect the PC to the ATL with the direct cable RS232 (51C2).
•
Check that the software revision in the ATL is 11 or over
•
Set the password
•
From the Online mode, choose
Modem parameters
from the
Parameters
menu (see description on
previous pages).
•
Activate the general modem enable (first option at top left).
•
Activate the
GSM
Modem
option
•
If you want the ATL to call the PC on its own initiative, activate the
enable calls from ATL
and
Connect to
PC
boxes, specifying the PC modem telephone number in the
phone number
box and the conditions that
will determine the call (against alarm and/or periodical)
•
If you want the ATL to send an SMS message in the occurrence of the above-mentioned conditions,
activate one or more
Send SMS
options and specify the number of the cell phone to which the SMS is to
be sent for each one of them.
•
In the same way, if you want the ATL to send an electronic mail message, activate the
Send E-mail
option and specify the electronic mail address of the addressee in the special box.
•
Transmit the settings with the
Transmit
button
•
From the ATL front panel, enter Setup menu P7 and set the parameter
P7.03 RS-232 protocol
to
Modbus ASCII + modem
