Siemens SIMATIC S7-1200 CP 1243-8 IRC - Page 206

Accessories
C.2 Modems and routers
CP 1243-8 IRC
206 Operating Instructions, 02/2018, C79000-G8976-C385-03
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Communications partners of the MD720 for SMS messages:
– Mobile phone
– Fax machine (when using a gateway)
The MD720 operates in terminal mode.
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Communications partners of the MD720 installed in an S7-200:
– Engineering station with STEP 7-Micro/WIN
(via GSM network, ISDN network, analog dial-up network)
The MD720 operates in terminal mode.
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Communications partners of the MD720 installed in an S7-300/400 with TIM:
– SIMATIC S7-300/400 with TIM module (including classic)
(via GSM network, ISDN network, analog dial-up network)
The MD720 operates in terminal mode.
Connection resources
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Active connections at runtime
At runtime, the MD720 can connect to 1 communications partner.
The connection partner is configured in the program blocks.
Technical specifications (excerpt)
Connection to Industrial Ethernet
X1 interface
Number:
1
Implementation:
D-sub 9-pin, female
Characteristics: RS-232
Control using AT commands
Transmission speed: 19200 bps
Permitted range: 300 ... 57600 bps
Wireless interface
Antenna connector
Number:
1
Implementation:
SMA socket
Impedance:
50 Ω nominal
Frequency bands
GPRS / CSD:
Quad band: 850, 900, 1800, 1900 MHz
GPRS Characteristics: Maximum of 5 time slots at the same time,
of which:
• Up to 2 uplinks
• Up to 4 downlinks