The MB3180, MB3280, and MB3480 are standard Modbus gateways that convert between Modbus TCP and Modbus RTU/ASCII protocols. Up to 16 simultaneous Modbus TCP masters are supported, with up to 31 RTU/ASCII slaves per serial port. For RTU/ASCII masters, up to 32 TCP slaves are supported.
The three standard MGate™ models (MB3180, MB3280, and MB3480) are designed for easy integration of Modbus TCP and RTU/ASCII networks. With these models, Modbus serial slave devices can be seamlessly incorporated into an existing Modbus TCP network, and Modbus TCP slaves can be made accessible to serial masters. The MB3180, MB3280, and MB3480 offer features that make network integration easy, customizable, and compatible with almost any Modbus network.
The MGate™ MB3000 gateways can effectively connect a high density of Modbus nodes to the same network. The MB3280 can manage up to 62 serial slave nodes, and the MB3480 can manage up to 124 serial slave nodes. Each RS-232/422/485 serial port can be configured individually for Modbus RTU or Modbus ASCII operation and for different baudrates, allowing both types of networks to be integrated with Modbus TCP through one Modbus gateway.
Moxa’s Auto-Device Routing function helps eliminate many of the problems and inconveniences encountered by engineers who need to configure large numbers of Modbus devices. A single mouse click is all that’s required to set up a slave ID routing table and configure Modbus gateways to automatically detect Modbus requests from a supervisory control and data acquisition (SCADA) system. By removing the need to manually create the slave ID routing table, the Auto-Device Routing function saves engineers significant time and cost.
Ethernet Interface | |
10/100BaseT(X) Ports (RJ45 connector) | 1 (Auto MDI/MDI-X connection) |
Magnetic Isolation Protection | 1.5 kV (built-in) |
Ethernet Software Features | |
Industrial Protocols | Modbus TCP Client (Master), Modbus TCP Server (Slave) |
Configuration Options | Web Console (HTTP), Device Search Utility (DSU), MGate Manager, Telnet Console |
Management | ARP, DHCP Client, DNS, HTTP, HTTPS (MGate MB3180 Excluded), SMTP (MGate MB3180 Excluded), SNMP Trap (MGate MB3180 Excluded), SNMPv1/v2c/v3, TCP/IP, Telnet, UDP, NTP Client (MGate MB3180 Excluded) |
MIB | RFC1213, RFC1317 |
Time Management | NTP Client (MGate MB3180 Excluded) |
Serial Interface | |
No. of Ports | MGate MB3180: 1 MGate MB3280: 2 MGate MB3480: 4 |
Connector | DB9 male |
Serial Standards | RS-232/422/485 (software selectable) |
Baudrate | 50 bps to 921.6 kbps |
Data Bits | 7, 8 |
Parity | None, Even, Odd, Space, Mark |
Stop Bits | 1, 2 |
Flow Control | DTR/DSR, RTS Toggle (RS-232 only), RTS/CTS |
RS-485 Data Direction Control | ADDC® (automatic data direction control) |
Pull High/Low Resistor for RS-485 | 1 kilo-ohm, 150 kilo-ohms |
Terminator for RS-485 | MGate MB3180: None MGate MB3280/MB3480: 120 ohms |
Serial Signals | |
RS-232 | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
RS-422 | Tx+, Tx-, Rx+, Rx-, GND |
RS-485-2w | Data+, Data-, GND |
RS-485-4w | Tx+, Tx-, Rx+, Rx-, GND |
Serial Software Features | |
Industrial Protocols | Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave |
Modbus (Transparent) | |
Max. No. of Client Connections | 16 |
Max. No. of Server Connections | 32 |
Power Parameters | |
Input Voltage | 12 to 48 VDC |
Input Current | MGate MB3180: 200 mA @ 12 VDC MGate MB3280: 250 mA @ 12 VDC MGate MB3480: 385 mA @ 12 VDC |
Power Connector | MGate MB3180: Power jack MGate MB3280/MB3480: Power jack and terminal block |
Physical Characteristics | |
Housing | Metal |
IP Rating | IP30 |
Dimensions (with ears) | MGate MB3180: 22 x 75 x 80 mm (0.87 x 2.95 x 3.15 in) MGate MB3280: 22 x 100 x 111 mm (0.87 x 3.94 x 4.37 in) MGate MB3480: 35.5 x 102.7 x 181.3 mm (1.40 x 4.04 x 7.14 in) |
Dimensions (without ears) | MGate MB3180: 22 x 52 x 80 mm (0.87 x 2.05 x 3.15 in) MGate MB3280: 22 x 77 x 111 mm (0.87 x 3.03 x 4.37 in) MGate MB3480: 35.5 x 102.7 x 157.2 mm (1.40 x 4.04 x 6.19 in) |
Weight | MGate MB3180: 340 g (0.75 lb) MGate MB3280: 360 g (0.79 lb) MGate MB3480: 740 g (1.63 lb) |
Environmental Limits | |
Operating Temperature | 0 to 60°C (32 to 140°F) |
Storage Temperature (package included) | -40 to 85°C (-40 to 185°F) |
Ambient Relative Humidity | 5 to 95% (non-condensing) |
Standards and Certifications | |
Safety | EN 60950-1, UL 60950-1 |
EMC | EN 55032/24 |
EMI | CISPR 32, FCC Part 15B Class A |
EMS | IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV IEC 61000-4-5 Surge: Power: 1 kV (MB3180/MB3280) IEC 61000-4-5 Surge: Power: 1 kV; Signal: 2 kV (MB3480) IEC 61000-4-6 CS: 3 V IEC 61000-4-8 PFMF IEC 61000-4-11 DIPs |
MTBF | |
Time | MGate MB3180: 908,440 hrs MGate MB3280: 749,455 hrs MGate MB3480: 1,242,173 hrs |
Standards | Telcordia SR332 |
Warranty | |
Warranty Period | 5 years |
Details | See www.moxa.com/warranty |
Name | Type | Version | Release Date | |
Datasheet for MGate MB3180/MB3280/MB3480 Series | Datasheet | V1.0 | 12 November 2018 |
No. of Serial Ports | 1 |
No. of Serial Ports | 2 |
No. of Serial Ports | 4 |
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