1-port RS232/422/485 Modbus Gateway with 1-Port 100BASE-FX SFP

» MG-115A

Standard Modbus TCP/RTU/ASCII Network Integration

PLANET MG-115A 1-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-115A 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-115A 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-115A 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:

  • Master mode supports up to 32 slave TCP connection requests
  • Slave mode supports up to 32 TCP master connections

 

Remote Management 

The MG-115A 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 100BASE-FX Ethernet port. It provides a remote web management and telnet Interface for efficient remote network management. The MG-115A 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-115A.

Modbus Serial Port State Monitoring

The MG-115A 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-115A via the single RS232/422/485 serial interface.

 

Fiber-optic Link Capability Extends the Range of Network Deployment

The maximum distance between two IP devices via Ethernet UTP cable is 100 meters. To flexibly extend the deployment range of Modbus gateway, the MG-115A’s SFP slot supporting 100BASE-FX SFP modules, and more can reach a transmission distance of up to 120km.

 

Easy Chassis Installation

The MG-115A can be used as a stand-alone unit or as a slide-in module to the PLANET Media Converter Chassis (MC-700 and MC-1500 chassis). The media chassis can assist in providing DC power to the MG-115A and can be DIN-rail or wall mounted for efficient use of cabinet space, without the need of replacing the existing serial equipment and software system.

RTU/ASCII Master to Multi Modbus TCP/IP Slaves

The MG-115A 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-115A 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.

Serial Interface

  • One DB9 interface supports RS232, 2-wire RS485, 4-wire RS485 and RS422 standards
  • Asynchronous serial data rates up to 921600bps

Ethernet Interface

  • 1-port 100BASE-FX SFP slot

Management Function

  • Built-in IP-based Web interface and telnet interface for remote management
  • Software Protocol supports Modbus TCP, Modbus RTU, Modbus ASCII, IP, ARP, DHCP and DNS
  • Supports RTU Master, RTU Slave, ASCII Master, and ASCII Slave four serial operation modes via management interface
  • Master mode supports 32 slave TCP connection requests
  • Slave mode supports 32 TCP master connections
  • PLANET Modbus Gateway utility for finding client device on the network.
  • PLANET Smart Discovery utility automatically finds the client devices on the network
  • Firmware upgrade/configuration backup and restore via HTTP protocol

Case and Installation

    • Compact size for easy Installation

– Standalone – Wall mountable or DIN-rail mounting (optional accessory)

    – Co-works with PLANET media chassis (MC-700/1500)
  • -10 to 60 degrees C operating temperature
  • Reset button for resetting to factory default

 

Serial Interface
Serial Ports 1 x DB9 male
Serial Standards RS232
RS422
4-wire RS485
2-wire RS485
Baud Rate (Data Rate) 50bps to 921Kbps
Data Bits 5, 6, 7, 8
Stop Bit 1, 1.5, 2
Parity Type Odd, Even, None, Space, Mark
Flow Control RTS/CTS and DTR/DSR (RS232 only)
XON/XOFF
Signals RS232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS422: Tx+, Tx-, Rx+, Rx-, GND
4-wire RS485: Tx+, Tx-, Rx+, Rx-, GND
2-wire RS485: Data A (+), Data B (-), GND
Pin Assignment
Pin RS232 RS422
RS485-4W
RS485-2W
1 DCD TxD+
2 RxD TxD-
3 TxD RxD- Data-
4 DTR RxD+ Data+
5 GND GND GND
6 DSR
7 RTS
8 CTS
9
Operation Mode RTU Master/RTU Slave/ASCII Master/ASCII Slave
Master mode: Supports up to 32 slave TCP connection requests
Slave mode: Supports up to 32 master TCP connection requests
Ethernet Interface
Ethernet Ports 1 x SFP
Standard 100BASE-FX
Distance 2km to 120km, Vary on SFP modules
ESD Protection 6KV
Hardware
Installation DIN-rail kit and wall-mount ear
Dimensions (W x D x H) 94 x 70.3 x 26.2mm
Weight 185g
LED Indicators System: Link
SFP: Link/Active
Serial Port: Active
Power Requirements External Power Adaptor 5V DC / 2A max.
Power Consumption 5.5 watts (max)
Mechanical Metal
Reset Button < 5 sec: System reboot > 5 sec: Factory default
Compatible Media Converter Chassis MC-700/MC-1500/MC-1500R
Management
Management Interfaces Web management
Telnet Console management
Windows-based MB VCOM Utility management
SNMPv1, v2c / SNMP Trap
UNI-NMS monitoring
PLANET Smart Discovery Utility
IP Version IPv4
Operation Mode RTU Master
RTU Slave
ASCII Master
ASCII Slave
Virtual COM Utility Platform Supports Windows-based Only:
Windows XP
Windows Server 2003
Windows 7
Windows Server 2008
Windows 8 (Must install the latest version of WinPcap)
Windows Server 2012 (Must install the latest version of WinPcap)
Windows 10
Fault Alarm Record: System log / SNMP trap
Time NTP
Security Accessible IP (white list)
SNMP SNMP v1 and v2c
Standards Conformances
Regulatory Compliance FCC Part 15 Class A,
CE Certification Class A
Stability Testing IEC60068-2-32 (Free fall)
IEC60068-2-27 (Shock)
IEC60068-2-6 (Vibration)
Standards IEEE 802.3u 100BASE-FX
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
EIA/TIA RS232/422/485
Regulatory Approval RoHS
Environment
Operating Temperature -10 ~ 60 degrees C
Storage Temperature -10 ~ 70 degrees C
Humidity 5 ~ 95% (non-condensing)
Date Version Description Download
2020/31/031.0

MG-115A

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Date Version Description Download
2020/26/031.0

Initial release.

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Date Version Description Download
2020/30/111.0

Initial release.

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Date Version Description Download
2020/10/061.0

EC Declaration.

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Date Version Description Download
2021/08/011.1910b200518

Bug Fixed –
Fix the problem that TP Port cannot ping IP at 10M speed.

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Date Version Description Download
2021/17/052007221630_0904_1334_101

Initial release.
*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.

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Ordering Information

MG-115A

1-port RS232/422/485 Modbus Gateway with 1-Port 100BASE-FX SFP

Ordering Information

MG-115A

1-port RS232/422/485 Modbus Gateway with 1-port 100BASE-FX SFP (-10~60 degrees C)
                         

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