Siemens S7-200

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Product Overview

The Siemens S7-200 driver exchanges data between OPC clients and Siemens S7-200 PLCs using the PPI (11 bit) or PPM (10 bit) protocol. It includes direct support for the EM241 Modem Module. Kepware automatically optimizes data acquisition based on client demand and ensures data integrity through extensive error handling.

  • Supports the EM241 Modem Module
  • Supports the PPI (11 bit) and PPM (10 bit) protocols
  • Supports Single Master Multi-drop RS485
  • Supports Stations 0-126
  • Supports Communication Serialization
  • Supports the following Memory Types: I, Q, M, S, V, T, C, HC, AI, and AQ
  • Supports all data types
  • Modem Support
    • Automatic dial configuration
    • Multiple phone number management
  • Point-to-Point (PPI) S7-200 Communications Protocol
  • Point-to-Point Modem (PPM) S7-200 Communications Protocol
  • Any Siemens S7-200 devices
  • S7-212
  • S7-214
  • S7-215
  • S7-216
  • S7-224
  • English
  • German
  • Japanese
  • Simplified Chinese
  • 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



  • Added Chinese language support.



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



  • Added support for Communication Serialization.

The driver normally operates using the standard 11 bit PPI protocol. If the use of the EM 241 modem module is required, the S7-200 PPM model must be selected. The S7-200 PPM model allows the driver to operate in a 10 bit mode, which is more compatible with a wide range of off-the-shelf modems. The 10 bit PPM mode can also be used directly on the PLC's programming port. To enable the 10 bit PPM mode, set the S7-200 programming cable 10 bit mode.