Modbus TCP/IP to IEC 60870-5-104 Gateway


IIntegration of Modbus TCP/IP® products into IEC 60870-5-104 networks can be a challenge, but not with ProSoft Technology’s PLX32-MBTCP-104 gateway.

The gateway has dual Ethernet ports, providing the option to have one Ethernet port communicating on both Modbus TCP/IP and IEC 60870-5-104 networks, or independent communication ports for each protocol.

The gateway provides powerful communications on the Modbus TCP/IP network, operating as either a Client or a Server to various devices such as PLC’s, Drives, HMI’s and various other equipment supporting the Modbus TCP/IP protocol.

On the IEC 60870-5-104 side of the communications, the gateway operates as a server, accepting commands from client devices such as a SCADA system or DCS system.


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Funktionen und Vorteile

  • Up to 10,000 words of user-defined memory to share data between IEC 60870-5-104 and Modbus TCP/IP networks
  • Up to 1000 points of each supported ASDU type can be exchanged on the IEC-60870-5-104 network
  • Modbus TCP/IP support as both Client (Master) and Server (Slave)
  • Ability to operate using one Ethernet port, or 2 individual Ethernet ports
  • Upload, Download, Diagnostics via ProSoft Configuration Builder (PCB) via an Ethernet connection
  • Configurable Common ASDU address (sector) and Information Object Address for IEC 60870-5-104 application
  • Optional support for SD card for configuration storage (Sold separately)

Technische Daten

Modbus TCP/IP Specifications 



Number of Modbus TCP/IP Client Connections


Supported Function Codes

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

Number of Modbus TCP/IP Client Commands

16 each client connection
160 total

Number of Modbus TCP/IP Server Connections

5 Simultaneous Server connections


IEC 60870-5-104 Server 



Operating Mode

IEC 60870-5-104 Server

Simultaneous Connections


Unsolicited Messaging

Either cyclic or spontaneous

Group Interrogation

Global, General 1 to 16, Global Counters, Counters 1 to 4

Supported ASDU types

Up to a maximum of 1000 of each of the following ASDU types are supported: M_SP_NA, M_DP_NA, M_ST_NA, M_ME_NA, M_ME_NB, M_ME_NC, M_IT_NA, C_SC_NA, C_DC_NA, C_RC_NA, C_SE_NA, C_SE_NB, C_SE_NC


Power Supply

24 VDC nominal
10 to 36 VDC allowed
Positive, Negative, GND Terminals

Current Load

24 VDC nominal @ 300 mA

10 to 36 VDC @ 610 mA maximum

Operating Temperature

-25°C to 70°C (-13°F to 158°F)

Storage Temperature

-40°C to 80°C (-40°F to 176°F)


IEC 60068-30; 5% to 95%, with no condensation


IEC 60068-2-27; 15G @ 11ms (Operational)
IEC 60068-2-27; 30G @ 11ms (Non-Operational)


IEC 60068-2-6; 5G @ 10 to 150 Hz

Dimensions (H x W x D)

5.38 x 1.99 x 4.38 in
13.67 x 5.05 x 11.13 cm

Ethernet Port

(2) 10/100 Base-T, RJ45 connector

SD Card

(Optional) Maximum supported size 32GB (located at back of gateway)


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