Request for Information on Commercially Available And/or Proven Technology for Re-engineering of the Opc Da (data Access) Communication Protocol for Control Systems That Are Impacted by the Microsoft Security Changes for Systems Using the Windows Operating System and Have the Opc Classic Architecture Infrastructure Based on Dcom Based Communication (where Oem Support is No Longer Available as They Have Exited the Business).

E2574GXMPGRO

See details below or the tender documentation

Tender Closed on: 2026-03-06 10:00

Information and Communications Technology, Plant Automation, PLC, SCADA, Building Management Systems, Software Programming and Application Development

Balfour, Mpumalanga

ESKOM

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Tender Number: E2574GXMPGRO
Department: ESKOM
Tender Type: Request for Information
Province: Mpumalanga
Closing Date: Friday, 06 March 2026 - 10:00
Place where goods, works or services are required: Grootvlei Power Station - Grootvlei - Balfour - 2420
Special Conditions: Tenders are uploaded via Eskom Tender bulletin site on the Eskom E- tendering page. https://etendering.eskom.co.za / where the documents are uploaded.
ENQUIRIES:
Contact Person: Manala Mabhena
Email: [email protected]
Telephone number: 017-779-8789
FAX Number: N/A
BRIEFING SESSION:
Is there a briefing session?: NO Is it compulsory? NO
Briefing Date and Time:
Briefing Venue:

This tender is also available from www.etenders.gov.za


Tender Summary

Objectives

The primary objective of this tender is to identify commercially available and/or proven technology solutions for re-engineering the OPC DA (Data Access) communication protocol. This re-engineering aims to address challenges posed by Microsoft security changes affecting control systems that utilize the Windows operating system and are based on the OPC Classic architecture with DCOM-based communication. The goal is to ensure continued secure and reliable data access and communication within control system infrastructures where OEM support is no longer available due to business exit.

Scope

The scope of the tender includes:

  • Assessment of existing OPC DA communication protocols impacted by recent security updates.
  • Identification and evaluation of suitable commercial or proven technologies for re-engineering the OPC DA protocol.
  • Development or adaptation of solutions that are compatible with Windows operating systems and OPC Classic architecture.
  • Implementation considerations for systems where original OEM support has ceased.
  • Ensuring the re-engineered solution maintains system integrity, security, and interoperability within existing control system infrastructure.

Technical Requirements

The technical requirements for the proposed solutions include:

  • Compatibility with Windows operating systems used in existing control systems.
  • Ability to replace or re-engineer OPC DA (Data Access) communication protocols impacted by Microsoft security updates.
  • Support for OPC Classic architecture based on DCOM communication, or alternative protocols that can seamlessly integrate with existing infrastructure.
  • Proven reliability and security features to mitigate vulnerabilities introduced by recent Microsoft security changes.
  • Minimal disruption to existing control system operations during implementation.
  • Compliance with relevant industry standards and best practices for control system communication protocols.

Skills Requirements

The skills required for bidders include:

  • Expertise in OPC DA and OPC Classic architecture, including DCOM communication protocols.
  • Experience with re-engineering or developing communication protocols for control systems.
  • Knowledge of Windows operating system security features and their impact on control system communications.
  • Proficiency in cybersecurity best practices relevant to industrial control systems.
  • Capability to deliver proven or commercially available solutions with documented performance and reliability.
  • Strong technical support and implementation skills to ensure seamless integration and minimal system downtime.
This summary is AI generated. Download the tender documents for all the information.

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