SIEMENS
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Siemens IK PI · 2015
Industrial Remote Communication
TeleControl Basic for the stations
MD720 MODEM
7
■
Overview
•
The MODEM MD720 is the successor of the SINAUT modem
MD720-3. All functions of the replaced SINAUT modem
MD720-3 are also supported by the MODEM MD720.
•
GSM/GPRS mobile radio modem MD720 with RS 232
interface for IP-based communication in industrial applica-
tions
•
DIN rail mounting
•
24 VDC power supply
•
Supports the GSM services CSD
1)
, SMS and GPRS
•
Use with Telecontrol Basic:
Data transmission over tunneled GPRS connection with
SIMATIC S7
•
Use with SINAUT ST7:
Data transmission via CSD, GPRS, transmission of text
messages
•
AT command interface: for remote maintenance or sending
text messages
1)
CSD –
C
ircuit
S
witched
D
ata (data transmission via GSM dialup
connection)
■
Benefits
•
Can be used worldwide due to quad band technology
(observe national regulations)
•
Quick assembly due to standard rail mounting
For GPRS operation in combination with TeleControl Server Basic:
•
Low operating costs for a permanent wireless online
connection due to optimized communication with efficient
message format
•
The location of the central control station is irrelevant due to
the Internet connection between the mobile phone provider
and the OPC (UA) server (TeleControl Server Basic)
•
Secure connection over public networks through encrypted
data transmission plus additional measures of the GPRS
provider
•
Simple configuration of wireless connected plants without
specialist radio knowledge
•
Modem replacement is possible by non-specialists since
parameterization is carried out through the S7-200
•
Cost savings thanks to remote servicing and remote
programming
•
Various different example applications are available in
Customer Service under the heading "Application & Tools"
to enable applications to be created quickly using combina-
tions of perfectly interacting automation components.
© Siemens AG 2014