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The MGate MB3660 (MB3660-8 and MB3660-16) series 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. The MGate MB3660 series 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 series 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 series 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. Agent mode is designed to overcome this performance weakness. By allowing users to manually key in Modbus commands, the gateway can send Modbus commands to multiple Modbus devices at the same time. Since the gateway actively and continuously retrieves data from Modbus devices simultaneously through the different serial ports, users will see a dramatic reduction in the amount of time a Modbus device needs to wait to be accessed.
• Ethernet Interface
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Protocols
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Modbus TCP Client/Server
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Number of Ports
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2 (2 IP addresses)
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Speed
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10/100 Mbps, Auto MDI/MDIX
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Connector
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RJ45 x 2
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• Serial Interface
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Protocols
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Modbus RTU/ASCII Master/Slave
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Number of Ports
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MGate MB3660-8: 8 MGate MB3660I-8: 8 MGate MB3660-16:16
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Serial Standards
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RS-232/422/485, software selectable
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Connectors
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DB9 male
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RS-485 Data Direction Control
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ADDC® (automatic data direction control)
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Isolation Protection
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2 kV (for “-I” model)
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• Serial Communication Parameters
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Data Bits
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8
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Stop Bits
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1, 2
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Parity
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None, Even, Odd, Space, Mark
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Flow Control
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RTS/CTS, DTR/DSR, RTS Toggle (RS-232 only)
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Baudrate
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50 bps to 921.6 Kbps
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• Serial Signals
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RS-232
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TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
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RS-422
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Tx+, Tx-, Rx+, Rx-, GND
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RS-485-4w
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Tx+, Tx-, Rx+, Rx-, GND
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RS-485-2w
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Data+, Data-, GND
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• Software
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Configuration Options
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Web console, Serial console, Telnet console
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Utilities
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Device Search Utility (DSU) for Windows 95, 98, ME, NT, 2000, Windows XP, Server 2003, Vista, Server 2008 (x86/x64), Windows Server 2008 R2, Windows 7/8/8.1 (x86/x64), Windows Server 2012 (x64), Windows 2012 R2
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Network protocols
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TCP/IP, UDP, HTTP, SMTP, NTP, DNS, DHCP Client, SNMPv1 (read only), ARP, Telnet, Radius
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Multi-master and Multi-drop
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Master mode: 128 TCP slaves/servers Slave mode: 256 TCP masters/clients
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• Physical Characteristics
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Fault Relay Circuit
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3-pin circuit with current carrying capacity of 2 A @ 30 VDC
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External Storage Drive
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SD card for configuration backup
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Housing
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Metal, IP30 protection
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Dimensions
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Without ears: 440 x 45 x 198 mm (17.32 x 1.77 x 7.80 in) With ears: 480 x 45 x 198 mm (18.90 x 1.77 x 7.80 in)
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• Environmental Limits
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Operating Temperature
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0 to 60°C (32 to 140°F)
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Storage Temperature
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-40 to 85°C (-40 to 185°F)
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Ambient Relative Humidity
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5 to 95% (non-condensing)
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• Power Requirements
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Input Voltage
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For DC models: Dual 20 to 60 VDC (1.5 kV isolation) For AC models: Dual 100 to 240 VAC, 47 to 63 Hz
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Power Connector
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Terminal block (for DC models)
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Power Consumption
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MGate MB3660-8-2AC: 144mA/110V, 101mA/220V MGate MB3660-8-2DC: 312mA/24V, 156mA/48V MGate MB3660I-8-2AC: 244mA/110V, 159mA/220V MGate MB3660-16-2AC:178mA/110V,120mA/220V MGate MB3660-16-2DC: 390mA/24V, 195mA/48V
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• Standards and Certifications
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Safety
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UL 60950-1, EN 60950-1 (LVD)
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EMC
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EN 55022/24
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EMI
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CISPR 22, FCC Part 15B Class A
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EMS
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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 2 kV; Signal: 1 kV IEC 61000-4-6 (CS): Signal: 1 kV IEC 61000-4-8
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Shock
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IEC 60068-2-27, IEC 60870
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Freefall
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IEC 60068-2-32
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Vibration
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IEC 60068-2-64, IEC 61373
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• Warranty
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Warranty Period
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5 years
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Details
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See www.moxa.com/warranty
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Features
- Innovative Command Learning eliminates the need to key-in SCADA Modbus commands (acts as an agent gateway)
- High performance through active and parallel polling of serial devices
- Supports serial (Master) to serial (Slave) communication
- 2 Ethernet ports with the same IP or dual IP addresses
- SD card for configuration backup
- Access by up to 256 TCP master/client devices, or connect to 128TCP slave/server devices
- Dual VDC or VAC power inputs with wide power input range
- 3-pin fault relay circuit for event alarms
- 2 kV isolation protection (for “-I” models)
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