Siemens TCP/IP Server Ethernet

See purchasing information for more details
Download Free Demo

Product Overview

The Siemens TCP/IP Server Ethernet driver was designed specifically for use with the KEPServerEX communications platform. It acts as a simulated Siemens PLC, and is intended for simulation of Siemens S7-300. The mode of communications is S7 Messaging on Industrial Ethernet (ISO 8073 Class 0) over TCP/IP as defined in RFC1006.

The Siemens TCP/IP Server Ethernet driver does not require special libraries or hardware. All that is needed is a standard Ethernet card. Devices require specialized ladder programming to communicate with this driver.



  • Supports 256 virtual devices
  • Supports the SFB14-GET and SFB15-PUT commands


  • Siemens Industrial Ethernet

Supported Devices

  • Simulated S7-300 (Slave)

Available Languages

  • English
  • German
  • Japanese
  • Simplified Chinese

Application Support

  • DDE Format CF_Text and AdvancedDDE
  • NIO Interface for iFIX
  • OPC .NET Service (OPC .NET) Version 1.00
  • OPC Alarms and Events (OPC AE) Version 1.10
  • OPC Data Access (OPC DA) Versions 1.0a, 2.0, 2.05a, and 3.0
  • OPC Unified Architecture (OPC UA) Clients
  • SuiteLink and FastDDE for Wonderware

Release Notes



  • Removed non-inclusive terms out of respect for users of our software. Renamed this driver in compliance with updated terminology.



  • Increased the maximum channel count from 256 to 1024.



  • Added support for larger PDU sizes of 480 and 960.

    Note: Using larger PDU sizes allows for increased throughput and larger array size access from the device.
  • Added a new setting called Maximum PDU Size. The driver communicates using the PDU size defined in this setting. Available PDU sizes include 240, 480, and 960.



  • Added Chinese language support.



  • Added German language support.
  • Added Japanese language support.



  • Fixed a runtime crash that could occur if there was a socket error while reading unsolicited data.


  • The driver will now check for License Activation upon receiving unsolicited communications.

What Is a Driver?

KEPServerEX is more than an OPC server—it's a connectivity platform for industrial automation and IoT. Simply download KEPServerEX, and then select from Kepware's library of more than 150 device drivers, client drivers, and advanced plug-ins to fit the communication requirements unique to your industrial control system.

A driver is a software component that enables KEPServerEX to meet the connectivity requirements of a specific device, system, or other data source. The driver handles all proprietary communications to the data source for KEPServerEX; the client interfaces handle all supported OPC, proprietary, and open standards connectivity to applications that monitor or control the devices.

Drivers may be licensed individually or in suites. Additional drivers can be licensed on demand as connectivity needs evolve.