SIEMENS
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Siemens NC 82 · 2017
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SINUMERIK CNC controls
Supplementary components
MD720 GSM/GPRS, 2G modem
■
Overview
MD720 GSM/GPRS, 2G modem
The MD720 GSM/GPRS, 2G modem transmits the text
messages into the GSM network of the mobile radio operator. By
inserting any SIM card into the MD720 GSM/GPRS, 2G modem,
it is possible to freely select the required mobile radio operator.
With Easy Message the SINUMERIK 828D BASIC/828D CNCs
provide a means of transmitting process data using text
messages (SMS). This makes it possible to send messages to
various mobile phones of the operating and maintenance
personnel to notify them, for example, of the workpiece counter
reading or the fact that a tool has reached its wear limit.
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Benefits
7
Rugged GSM modem for industrial use
7
High-quality signal transmission thanks to powerful external
antenna
7
Simple mounting on standard mounting rails in the control
cabinet or operator panel housing
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Design
The MD720 GSM/GPRS, 2G modem features the following
interfaces as standard:
•
9-pin Sub-D socket for connection to the CNC
(RS232C interface)
•
4-pin screw terminal for connection to a 24 V DC supply
voltage
•
SMA antenna connection socket for GSM/GPRS antenna
•
Slot for inserting a GSM-SIM card
The MD720 GSM/GPRS, 2G modem has diagnostic LEDs for
modem status, field strength and connection control.
Easy Message provides the following functions:
•
Input of PIN number
•
Configuration of user profiles
•
Display of modem status and field strength
•
Generation of outgoing text messages (SMS)
•
Processing of incoming text messages (SMS)
•
Visualization of transmission protocol
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Integration
The MD720 GSM/GPRS, 2G modem can be used for the
following CNCs:
•
SINUMERIK 828D BASIC
•
SINUMERIK 828D
The following components can be connected:
•
Modem cable for RS232C interface
•
ANT 794-4MR antenna
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Technical specifications
■
Selection and ordering data
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More information
You can find additional information on the Internet at:
/industrymall
Article No.
Short product code
Product designation
6NH9720-3AA01-0XX0
MD720
Mobile network modem
GSM/GPRS, 2G
Supply voltage at DC
24 V
Power loss, typical
5 W
Transfer rate with GSM transmission
9600 bit/s
• With downlink maximum
54 kbit/s
• With uplink maximum
42 kbit/s
Operating frequency with
GSM transmission
850/900/1800/1900 MHz
Interfaces
• RS232C
9-pin Sub-D socket
• Antenna
SMA antenna socket (50
Ω
)
• Power supply
4-pin terminal strip
Degree of protection
IP30
Maximum relative humidity
at 25 °C
95 %
Ambient temperature, during
• storage
-25 ... +85 °C
• transport
-25 ... +85 °C
• operation
-20 ... +60 °C
Width
30 mm
Height
100 mm
Depth
90 mm
Net weight
150 g
Certificate of suitability
CE, CSA, UL
Wireless approvals
Current approvals can be found on
the Internet at
/
mobilenetwork-approvals
Description
Article No.
MD720 GSM/GPRS, 2G modem
Mobile network modem with
RS232 interface
6NH9720-3AA01-0XX0
ANT 794-4MR antenna
6NH9860-1AA00
Modem cable
For RS232C interface
Length 2.5 m
6NH7701-5AN
© Siemens AG 2016