MM20-GSM

Interface converter

MM20-GSM

Interface converter

FEATURES

DESCRIPTION

MM20-GSM is communication device intended for remote readout over GSM/GPRS connection:

– devices on M-Bus line with M-Bus protocol (heat, water, electric, gas meters…)

– devices on RS-485 line with transparent or Modbus RTU protocol (PLCs, I/O modules, pumps…)

M-Bus port is galvanically isolated and designed to withstand short circuit on M-Bus line. RS-485 port can be configured to convert Modbus TCP to Modbus RTU protocol. Device setup can be done locally or remotely over SMS messages or telnet service using the TCP protocol on port 23. LED indications show device status and can be used for complete diagnostic. Depending on version, power supply is 9-30V DC or 230V AC. Device is prepared for 35mm DIN rail mounting and it is fully adjusted for industrial communications, automation processes and telemetry.

APPLICATION

MM20-GSM acts on M-bus line as standard M-Bus master device which can sustain up to 20 M-Bus slave devices. Simultaneously with readout of M-Bus slave devices, it can communicate with devices on RS-485 line. GSM/GPRS communication is carried out via microcontroller controlled GSM module which enables multiple UDP/TCP server connections. M-Bus and RS-485 ports can be assigned to one of these connections. MM20-GSM is designed to work with fixed IP addresses in VPN (Virtual Private Network).

PC, over serial connection and GSM modem, or LAN connection and 2G/3G router, connects to GSM/GPRS VPN network. Client software sends UDP/TCP packets with requests for RS-485 and M-Bus devices. MM20-GSM converter extracts serial requests from UDP/TCP packets and sends it to RS-485 and M-Bus ports. Responses from serial ports are packed by MM20-GSM device in to UDP/TCP packets and sent back to client software.

TECHNICAL SPECIFICATION

GSM module
uBlox SARA G340, Dual-band GSM/GPRS
GSM antenna connection
SMA jack
SIM card
Standard (1.8V/3.0V) SIM card
Remote connection
Over GPRS, multiple TCP/UDP/IP servers
Remote setup
Over SMS messages or telnet service
Serial interface
Connection: RJ45
RS-232 DCE – device setup, firmware update
speed 115200 bps, data format 8N1
RS-485 – transparent or Modbus RTU protocol
speed and data format adjustable for RS-485 interface
M-Bus interface
Connection: pluggable screw terminal, max 2.5mm2
M-Bus master – transparent protocol up to 20 M-Bus slave devices
speed (300–9600 bps) and data format adjustable
quiescent current: 0-30mA short circuit: 50-70mA with restart function,
line voltage: 30.5V ± 5%, internal resistance <100 Ohm
overvoltage protection: tranzorb
>12km@300bps, > 4km@2400bps, > 1km@9600bps
cable JYSTY nx2x0.8
LED indications
On, Gsm, Bus, 485
Power supply
Connection: pluggable screw terminal, max 2.5mm2
9-30V DC 10W, reverse polarity and overvoltage protection
230 AC 0.2A, optional, with galvanic isolation
Protection
IP30
Temperature range
from -20°C to +50°C, humidity <90% non condensing
Dimension
95x35x77mm
Mounting
35mm DIN rail

ORDERING INFORMATIONS

Model

SKU

Description

Price

MM20-GSM DC

10318

Interface converter - DC Power supply

€245

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MM20-GSM AC

10336

Interface converter - AC Power supply

245.00

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*Minimum functionality kit needs to include the device and an appropriate power supply. Please note that all accessories are sold separately.

ORDERING INFORMATIONS

MM20-GSM DC

Interface converter - DC Power supply

245.00

View cart

MM20-GSM AC

Interface converter - AC Power supply

245.00

View cart

ORDERING INFORMATIONS

MM20-GSM DC

Interface converter - DC Power supply

245.00

View cart

MM20-GSM AC

Interface converter - AC Power supply

245.00

View cart

ACCESSORIES

ANT-GSM-R

GSM Rod antenna, 2.2 dBi, SMA, quad band

5.00

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ANT-GSM-S

GSM Swivel antenna, 2.2 dBi, SMA, quad band

6.00

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ANT-GSM-M

GSM antenna, Magnetic mount, cable 2.5m, 2.2 dBi, SMA, quad band

7.00

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PS-1212-AD

AC/DC adapter, DC12V 12W, AC100-240V 50/60Hz

8.00

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PS-2415-DIN

Power supply, DIN rail mount, DC24V 15W, AC85-264V 50/60Hz

11.00

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ACCESSORIES

ANT-GSM-R

GSM Rod antenna, 2.2 dBi, SMA, quad band

5.00

View cart

ANT-GSM-S

GSM Swivel antenna, 2.2 dBi, SMA, quad band

6.00

View cart

ANT-GSM-M

GSM antenna, Magnetic mount, cable 2.5m, 2.2 dBi, SMA, quad band

7.00

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PS-1212-AD

AC/DC adapter, DC12V 12W, AC100-240V 50/60Hz

8.00

View cart

PS-2415-DIN

Power supply, DIN rail mount, DC24V 15W, AC85-264V 50/60Hz

11.00

View cart

ACCESSORIES

Model

SKU

Description

Price

ANT-GSM-R

21760

GSM Rod antenna, 2.2 dBi, SMA, quad band

5.00

View cart

ANT-GSM-S

21757

GSM Swivel antenna, 2.2 dBi, SMA, quad band

6.00

View cart

ANT-GSM-M

23266

GSM antenna, Magnetic mount, cable 2.5m, 2.2 dBi, SMA, quad band

7.00

View cart

PS-1212-AD

10261

AC/DC adapter, DC12V 12W, AC100-240V 50/60Hz

8.00

View cart

PS-2415-DIN

23601

Power supply, DIN rail mount, DC24V 15W, AC85-264V 50/60Hz

11.00

View cart

PRODUCT DOCUMENTS

TitleCategoriesFile TypeFile SizeLinkhf:doc_categorieshf:file_type
MM20 GSM – User Manual 1.4pdf2 MBuser-manualpdf
MM20 GSM – Datasheetpdf161 KBdatasheetpdf
MM20 GSM – User Manual 1.3pdf2 MBuser-manualpdf

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