MGate MB3660 Series

Features and Benefits

Supports Auto Device Routing for easy configuration
Supports route by TCP port or IP address for flexible deployment
Innovative Command Learning for improving system performance
Supports agent mode for high performance through active and parallel polling of serial devices
Supports Modbus serial master to Modbus serial slave communications
2 Ethernet ports with the same IP or dual IP addresses for network redundancy
SD card for configuration backup/duplication and event logs
Accessed by up to 256 Modbus TCP clients
Connects up to Modbus 128 TCP servers
RJ45 serial interface (for “-J” models)
Serial port with 2 kV isolation protection (for “-I” models)
Dual VDC or VAC power inputs with wide power input range
Embedded traffic monitoring/diagnostic information for easy troubleshooting
Status monitoring and fault protection for easy maintenance

Overview

The MGate MB3660 (MB3660-8 and MB3660-16) gateways are redundant Modbus gateways that convert between the Modbus TCP and Modbus RTU/ASCII protocols. They can be accessed by up to 256 TCP master/client devices, or connect to 128 TCP slave/server devices. Routing through the serial ports can be controlled by IP address, TCP port number, or ID mapping. Serial-port routing by designated TCP port and IP address allows access for up to 4 TCP clients/masters, while routing by ID mapping (slave ID table) allows access for up to 256 TCP clients/masters. The MGate MB3660 isolation model provides 2-kV isolation protection suitable for power substation applications. The MGate MB3660 gateways are designed to easily integrate Modbus TCP and RTU/ASCII networks. The MGate MB3660 gateways offer features that make network integration easy, customizable, and compatible with almost any Modbus network.

For large-scale Modbus deployments, MGate MB3660 gateways can effectively connect a large number of Modbus nodes to the same network. The MB3660 Series can physically manage up to 248 serial slave nodes for 8-port models or 496 serial slave nodes for 16-port models (the Modbus standard only defines Modbus IDs from 1 to 247). 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.

High Performance with Innovative Command Learning

The MGate MB3660 gateways support two communication modes: transparent mode and agent mode. For transparent mode, the gateway converts Modbus commands from Modbus TCP to Modbus RTU/ASCII, and vice versa, or from serial (master) to serial (slave). However, since only one Modbus protocol request-response action can be executed at any given time, each Modbus device has to wait its turn, resulting in poorer performance.
In order to provide better performance, the MGate MB3660 gateways are designed with an innovative Command Learning function, which can be activated with a single mouse click. Once activated, the gateway will learn and remember the Modbus commands it receives, and once a command has been learned, the gateway will act as though it were in agent mode, and actively send Modbus requests to the relevant Modbus devices. Since the data is saved in a different memory space that can be accessed by the SCADA system, the SCADA system can retrieve Modbus response data directly from the gateway’s memory, instead of waiting for the data to pass through the Modbus devices, dramatically increasing communication performance.

Auto-Device Routing for Easy Configuration

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 reduces cost.

Modbus Gateway with Power and Ethernet Redundancy

For a complicated Modbus system, redundancy is extremely important. The MGate MB3660 Modbus gateways support redundancy for both the power input and Ethernet connection. The MGate MB3660 gateways come with dual AC or DC power inputs built in for power redundancy, and have dual Ethernet ports (with different IPs) for network redundancy. To accommodate different types of applications, the dual Ethernet ports can be configured in one of two ways:

Use the same IP for both Ethernet ports. In this case, the MGate MB3660 gateway will automatically switch to the backup LAN when the main LAN fails.
Use different IP addresses for each of the two Ethernet ports. In this case, Modbus clients/masters can use both Ethernet ports to communicate with Modbus RTU/ASCII slave devices at the same time.

Specifications

Ethernet Interface

10/100BaseT(X) Ports (RJ45 connector)

2 IP addresses
Auto MDI/MDI-X connection

Ethernet Software Features

Industrial Protocols:

Modbus TCP Client (Master)
Modbus TCP Server (Slave)

Configuration Options:

Web Console (HTTP/HTTPS)
Device Search Utility (DSU)
MCC Tool
Telnet Console

Management:

ARP
DHCP Client
DNS
HTTP
HTTPS
SMTP
SNMP Trap
SNMPv1/v2c/v3
TCP/IP
Telnet
UDP
NTP Client
RADIUS

MIB:

RFC1213
RFC1317

Time Management:

NTP Client

Security Functions

Authentication

Local database
RADIUS

Encryption

HTTPS
AES-128
AES-256
SHA-256

Security Protocols

SNMPv3
HTTPS (TLS 1.2)

Serial Interface

No. of Ports

MGate MB3660-8 models: 8
MGate MB3660-16 models: 16

Connector

MGate MB3660-8/16: DB9 male
MGate MB3660-8/16-J: RJ45

Serial Standards

RS-232/422/485 (software-selectable)

Baudrate

50 bps to 921.6 kbps

Data Bits

7, 8

Stop Bits

1, 2

Parity

None
Even
Odd
Space
Mark

Flow Control

RTS/CTS
DTR/DSR
RTS Toggle (RS-232 only)

Console Port

RS-232 (TxD, RxD, GND)
8-pin RJ45 (115200, n, 8, 1)

Isolation

2 kV (I models)

RS-485 Data Direction Control

Automatic Data Direction Control (ADDC)

Pull High/Low Resistor for RS-485

1 kilo-ohm
150 kilo-ohms

Terminator for RS-485

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

Configuration Options

Serial Console

Modbus RTU/ASCII

Mode

Master
Slave

Functions Supported

1, 2, 3, 4, 5, 6, 15, 16, 23

Max. No. of Commands

256 per serial port

Memory Size

65535 bytes

Modbus TCP

Mode

Client (Master)
Server (Slave)

Max. No. of Client Connections

Max. No. of Server Connections

Functions Supported

1, 2, 3, 4, 5, 6, 15, 16, 23

Max. No. of Commands

Memory Size

65535 bytes

Modbus (Transparent)

Max. No. of Client Connections

Max. No. of Server Connections

Power Parameters

Input Voltage

All models: Redundant dual inputs

AC models: 100 to 240 VAC (50/60 Hz)
DC models: 20 to 60 VDC (1.5 kV isolation)

No. of Power Inputs

Power Connector

Terminal block (for DC models)

Power Consumption

MGate MB3660-8-2AC: 109 mA @ 110 VAC
MGate MB3660-16-2AC: 141 mA @ 110 VAC
MGate MB3660-8/16-J-2AC: 235 mA @ 110 VAC
MGate MB3660I-8/16-2AC: 310 mA @ 110 VAC
MGate MB3660-8-2DC: 312 mA @ 24 VDC
MGate MB3660-16-2DC: 494 mA @ 24 VDC

Relays

Contact Current Rating

Resistive load: 2 A @ 30 VDC

Physical Characteristic

Housing

Metal

IP Rating

IP30

Dimensions (with ears)

480 x 45 x 198 mm (18.90 x 1.77 x 7.80 in)

Dimensions (without ears)

440 x 45 x 198 mm (17.32 x 1.77 x 7.80 in)

Weight

MGate MB3660-8-J-2AC: 2600 g (5.73 lb)
MGate MB3660-16-J-2AC: 2670 g (5.89 lb)
MGate MB3660-8-2DC: 2684 g (5.92 lb)
MGate MB3660-8-2AC: 2731 g (6.02 lb)
MGate MB3660I-8-2AC: 2753 g (6.07 lb)
MGate MB3660-16-2DC: 2780 g (6.13 lb)
MGate MB3660I-16-2AC: 2820 g (6.22 lb)
MGate MB3660-16-2AC: 2830 g (6.24 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)

Standard and Certifications

EMC

EN 55032/35

EMI

CISPR 32, FCC Part 15B Class A

EMS

IEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m
IEC 61000-4-4 EFT: Power: 1 kV; Signal: 1 kV
IEC 61000-4-5 Surge: Power: 2 kV; Signal: 1 kV
IEC 61000-4-6 CS: 10 V
IEC 61000-4-8 PFMF

Safety

All models excluding “J” models: IEC 62368-1, UL 62368-1, IEC 60950-1, UL 60950-1

Freefall

IEC 60068-2-31

Shock

IEC 60068-2-27

Vibration

IEC 60068-2-6
IEC 60068-2-64

MBTF

Time

MGate MB3660-8-2AC: 721,988 hrs
MGate MB3660-8-2DC: 711,978 hrs
MGate MB3660-8-J-2AC: 616,505 hrs
MGate MB3660-16-2AC: 495,416 hrs
MGate MB3660-16-2DC: 490,684 hrs
MGate MB3660-16-J-2AC: 437,337 hrs
MGate MB3660I-8-2AC: 429,807 hrs
MGate MB3660I-16-2AC: 256,208 hrs

Standards

Telcordia SR332

Warranty

Warranty Period:

5 years

Models