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Siemens S7 MPI

The Siemens S7 MPI driver for Kepware Server exchanges data between OPC clients and Siemens S7-300 and S7-400 PLCs using the MPI protocol.

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Available in these suites

This product is only available as part of a suite. Choose one of the options below to get access to this and other tools.
  • Enterprise Connectivity

    Kepware+

    Get all of the Kepware Server connectivity in one package - designed for enterprises looking to standardize and manage their connectivity at scale.

    Suite Kepware
  • Project Connectivity

    Advanced Manufacturing Suite

    Kepware’s Advanced Manufacturing Suite bundles every driver with tag linking and database logging unlocked data from any device for automation projects.

    Suite Kepware
  • Device Connectivity

    Siemens Plus Suite

    Kepware's Siemens Plus Suite provides connectivity to Siemens S7-1500 controllers via the OPC UA Client driver in addition to the features supported in the standard Siemens Suite for Kepware Server.

    Suite Kepware

Details

Overview

Product Overview

The Siemens S7 MPI driver exchanges data between OPC clients and Siemens S7-300 and S7-400 PLCs using the MPI protocol. The MPI interface requires the use of the Siemens S7 MPI serial port adapter available from your Siemens dealer. The serial port MPI adapter allows communications with Siemens S7-300 and S7-400 PLCs at either 19.2 KBaud or 38.4 KBaud. The driver talks directly to the MPI adapter cable without additional software packages or libraries. Kepware automatically optimizes data acquisition based on client demand and ensures data integrity through extensive error handling.

Performance

  • Supports Ethernet Encapsulation
  • Supports multiple Master Multi-drop
  • Automatically handles network configuration
  • Supports Stations 0-126
  • Supports the following Memory Types: I, E, Q, A, M, F, T, C, Z, and Data Block Access
  • Supports bit-level access
  • Supports all data types
  • Supports arrays for byte, char, word, short, DWORD, long, float and LBCD data types
  • Modem Support
    • Automatic dial configuration
    • Multiple phone number management

Protocols

  • Multi Point Interface (MPI) S7-300/400 Communications Protocol

Supported Devices

  • S7-300 - Family
  • S7-400 - Family

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

Documents

Release Notes

Access and search all Kepware product release notes here.

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Also consider

Kepware+

Get all Kepware Server connectivity in one package, built for enterprises seeking to standardize and manage connectivity at scale.

Kepware Server Free Trial

Explore all Kepware Server capabilities for free and experience secure, reliable industrial connectivity before committing to purchase.