Standard Modbus TCP/RTU/ASCII Network Integration
PLANET MG-120 2-port RS232/422/485 Modbus Gateway supports the standard Modbus Protocol, which makes it possible for converting any Modbus Protocols between Modbus TCP, Modbus RTU, and Modbus ASCII for all supported hardware interfaces. Its serial protocol can be used for industrial automation where SCADA or HMI system is in place.
Moreover, its network integration can be upgraded from the SNMP network to the automated Modbus TCP network, which brings interconnection over Ethernet longer distances, thus making a network infrastructure more flexible.
A Conversion Bridge for Flexible Network Deployment
The MG-120 can be a conversion bridge between the equipment with the Modbus RTU/ASCII Protocol and the administrator workstations that run the Modbus TCP/IP Protocol. The RS232/422/485 serial interface of the MG-120 provides the Modbus RTU/ASCII operation mode and various baud rate options to meet the demand of integration between the Modbus TCP/IP Protocol, Modbus RTU Master/Slave Protocol and Modbus ASCII Master/Slave Protocol.
The advantage of having the MG-120 is to assist users to build an environment between the Modbus TCP Protocol and the Modbus RTU/ASCII Protocol easily, thus offering an application solution to the control equipment without Ethernet ports, and the control equipment can only control through a PC workstation or control panel.
In addition, the effective integration solution of Modbus Ethernet devices, Modbus serial equipment or multi Modbus master / slave in a hybrid network brings the following:
The MG-120 makes the connected Modbus RTU/ASCII equipment become IP-based facilities and is able to connect to the Modbus TCP/IP network via its R232/422/485 serial interface and 10/100BASE-TX RJ45 Ethernet port. It provides a remote web management and telnet Interface for efficient remote network management. The MG-120 also provides PLANET Modbus Gateway utility tool and supports PLANET Smart Discovery utility to help network administrator to easily get the current IP subnet address information or change the IP subnet address setting of the MG-120.
Modbus Serial Port State Monitoring
The MG-120 shows the details of the total bytes transmitted and received on the RS232/422/485 serial interface, and the detailed total number of frames transmitted and received on the remote web/telnet management interface. This function allows network administrator to check the status and statistics of the MG-120 via the single RS232/422/485 serial interface.
RTU/ASCII Master to Multi Modbus TCP/IP Slaves
The MG-120 can act as a bridge between the RTU/ASCII master equipment and the multi-TCP/IP slave equipment in a Modbus TCP/IP networking environment to control multi-TCP/IP slave equipment via the RTU/ASCII master equipment.
Multi Modbus TCP/IP Master to RTU/ASCII Slaves
The MG-120 can operate as a bridge between the multi-TCP/IP master equipment and the RTU/ASCII slave equipment in a Modbus TCP/IP networking environment to control the RTU/ASCII slave equipment via the multi-TCP/IP master equipment.
Case and Installation
|2 x DB9 male
|Baud Rate (Data Rate)
|50bps to 921Kbps
|5, 6, 7, 8
|1, 1.5, 2
|Odd, Even, None, Space, Mark
|RTS/CTS and DTR/DSR (RS232 only)
|RTU Master/RTU Slave/ASCII Master/ASCII Slave
Master mode: Supports up to 32 TCP slave connection requests
Slave mode: Supports up to 32 TCP master connection requests
|1 x RJ45
|DIN-rail kit and wall-mount ear
|Dimensions (W x D x H)
|97 x 70 x 26mm
TP Port: Link/Active
Serial Port: Active
|External Power Adaptor 5V DC, 2A max.
|5.5 watts (max.)
|< 5 sec: System reboot
> 5 sec: Factory default
Telnet Console management
Windows-based MB VCOM Utility management
SNMPv1, v2c / SNMP Trap
PLANET Smart Discovery Utility
|Virtual COM Utility Platform Supports
Windows Server 2003
Windows Server 2008
Windows 8 (Must install the latest version of WinPcap)
Windows Server 2012 (Must install the latest version of WinPcap)
|Record: System log / SNMP trap
|Accessible IP (white list)
|SNMP v1 and v2c
|FCC Part 15 Class A,
CE Certification Class A
|IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
RFC 768 UDP
RFC 793 TFTP
RFC 791 IP
RFC 792 ICMP
RFC 854 Telnet
RFC 958 NTP
RFC 1908 SNMPv2c
RFC 2068 HTTP
RFC 2131 DHCP Client
|-10 ~ 60 degrees C
|-10 ~ 70 degrees C
|5 ~ 95% (non-condensing)
*Note: This utility is only for the MG-110, MG-120, MG-115A, IMG-2100T, IMG-2102T, IMG-2102TS, IMG-2105AT, IMG-2200T, and IMG-2400Tand NOT compatible with IMG-110 Tand IMG-120T.
|1-port RS232/422/485 Modbus Gateway
|1-port RS232/422/485 Modbus Gateway with 1-Port 100BASE-FX SFP
|Industrial 1-port RS232/422/485 Modbus Gateway
|IMG-2105AT / IMG-2102T / IMG-2102TS
|Industrial 1-port RS232/422/485 Modbus Gateway with 1-Port 100BASE-FX SFP
|Industrial 2-Port RS232/422/485 Modbus Gateway
|Industrial 4-Port RS232/422/485 Modbus Gateway
|2-port RS232/422/485 Modbus Gateway (-10~60 degrees C)