Description

Moxa MGate MB3270 2-port advanced Modbus gateway

Introduction

The MGate MB3170 and MGate MB3270 are 1 and 2-port Modbus gateways, respectively, that convert between Modbus TCP, ASCII, and RTU communications protocols. The gateways provide both serial-to-Ethernet communication and serial (master) to serial (slave) communications. In addition, the gateways support simultaneously connecting serial and Ethernet masters with serial Modbus devices. The MGate MB3170 and MB3270 Series gateways can be accessed by up to 32 TCP master/clients or connect to up to 32 TCP slave/servers.

Routing through the serial ports can be controlled by IP address, TCP port number, or ID mapping. Serial-port routing by TCP port and IP address allows access for up to 4 TCP clients/masters (MB3270 models), while routing by ID mapping allows access for up to 32 TCP clients/masters (MB3170/MB3270). A featured priority control function allows urgent commands to obtain an immediate response. All models are rugged, DIN-rail mountable, and offer optional built-in optical isolation for serial signals.

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Features and Benefits

• Supports Auto Device Routing for easy configuration
• Supports route by TCP port or IP address for flexible deployment
• Connects up to 32 Modbus TCP servers
• Connects up to 31 or 62 Modbus RTU/ASCII slaves
• Accessed by up to 32 Modbus TCP clients (retains 32 Modbus requests for each Master)
• Supports Modbus serial master to Modbus serial slave communications
• Built-in Ethernet cascading for easy wiring
• 10/100BaseTX (RJ45) or 100BaseFX (single mode or multi-mode with SC/ST connector)
• Emergency request tunnels ensure QoS control
• Embedded Modbus traffic monitoring for easy troubleshooting
• Serial port with 2 kV isolation protection (for “-I” models)
• -40 to 75°C wide operating temperature models available
• Supports redundant dual DC power inputs and 1 relay output

Ethernet Interface/ MGate MB3270

10/100BaseT(X) Ports (RJ45 connector) : 2 (1 IP, Ethernet cascade), 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/HTTPS), Device Search Utility (DSU), MGate Manager, MCC Tool, Telnet Console
Management : ARP, DHCP Client, DNS, HTTP, HTTPS, SMTP, SNMP Trap, SNMPv1/v2c/v3, TCP/IP, Telnet, UDP, NTP Client

MIB : RFC1213, RFC1317
Time Management : NTP Client

Security Functions

Authentication : Local database
Encryption : HTTPS, AES-128, AES-256, SHA-256
Security Protocols : SNMPv3, HTTPS (TLS 1.2)

Serial Interface/ MGate MB3270

No. of Ports : 2
Connector : 2 x DB9 male
Serial Standards : RS-232/422/485 (software selectable)
Baud-rate : 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
Pull High/Low Resistor for RS-485 : 1 kilo-ohm, 150 kilo-ohms
Terminator for RS-485 : 120 ohms
RS-485 Data Direction Control : ADDC (automatic data direction control)

Serial Signals

RS-232 : T x D, R x D, 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/ MGate MB3270

Industrial Protocols : Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave

Modbus (Transparent)

Max. No. of Client Connections : 32
Max. No. of Server Connections : 32

Power Parameters

Input Voltage : 12 to 48 VDC
Input Current : 435 mA @ 12 VDC
Power Connector : 7-pin terminal block

Relays

Contact Current Rating : Resistive load: 1 A @ 30 VDC

Physical Characteristics/ MGate MB3270

Housing : Plastic
IP Rating : IP30
Dimensions (with ears) : 29 x 89.2 x 124.5 mm (1.14 x 3.51 x 4.90 in)
Dimensions (without ears) : 29 x 89.2 x 118.5 mm (1.14 x 3.51 x 4.67 in)
Weight : 380 g (0.84 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)

Warranty

Warranty Period : 5 Years

Additional information

Brand	MOXA
Product ID	MGate MB3270
Magnetic Isolation Protection	1.5kV (Built-in)
No. of Parts	2
Connector	2 x DB9 Male
Serial Standards	RS-232/422/485 (software selectable)
Pull High/Low Resistor for RS-485	1 kilo-ohm, 150 kilo-ohms
Housing	Metal
Dimensions (with ears)	29 x 89.2 x 124.5 mm (1.14 x 3.51 x 4.90 in)
Warranty Period	5 Years