Accessories
C.2 Modems
CP 1243-8 IRC
126
Operating Instructions, 06/2015, C79000-G8976-C385-01
C.2.2
MODEM MD720
MODEM MD720
Article number: 6NH9720-3AA01-0XX0
Figure C-5 MODEM MD720
Use of the MD720
The MD720 is a GPRS/GSM modem for industrial applications.
It is intended for use in SIMATIC S7 stations that are part of a telecontrol or remote
maintenance system and for communication with other stations in the network or an OPC
server in the master station. Depending on the configuration, the control center can be either
TeleControl Server Basic, SINAUT ST7cc, SINAUT ST7sc or SINAUT MICRO SC.
The MD720 supports the following types of communication:
●
IP-based communication with the control center using GPRS and the MSC protocol or the
MSCsec secure protocol
●
SMS messages from or to a mobile telephone
●
CSD communication for maintenance and for data connections
Current manual version and further information on the Internet
You will find the current version of the manual and further information (e.g. FAQs) on the
following Internet page of Siemens Industry Online Support:
22502072 (
http://support.automation.siemens.com/WW/view/en/22502072
Accessories
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