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).

E2574GXMPGROR

See details below or the tender documentation

2026-07-14 10:00

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Tender Number: E2574GXMPGROR
Department: ESKOM
Tender Type: Request for Information
Province: Mpumalanga
Closing Date: Tuesday, 14 July 2026 - 10:00
Place where goods, works or services are required: Grootvlei Power - Grootvlei - Balfour - 2420
Special Conditions: N/A
ENQUIRIES:
Contact Person: Manala Mabhena
Email: [email protected]
Telephone number: 017-779-8500
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 and acquire 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 recent 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 exchange in control system environments where OEM support is no longer available due to business exit.

Scope

The scope of the tender includes:

  • Assessment of existing OPC DA communication infrastructure based on DCOM architecture.
  • Identification and evaluation of commercially available or proven alternative technologies or solutions for re-engineering the OPC DA protocol.
  • Development or integration of re-engineered communication protocols compatible with Windows OS environments impacted by security updates.
  • Implementation and testing of the selected technology solutions within relevant control system environments.
  • Documentation and support for deployment, ensuring minimal disruption to existing control system operations.

Technical Requirements

The technical requirements for the tender include:

  • Solutions must be compatible with Windows operating systems used in control systems.
  • Re-engineered protocols should maintain or improve upon the security, reliability, and performance of existing OPC DA communications.
  • Solutions must be capable of integrating with existing OPC Classic infrastructure based on DCOM.
  • Proven track record or commercially available solutions with demonstrated effectiveness in similar environments.
  • Support for seamless migration with minimal downtime and operational impact.
  • Compliance with relevant security standards and best practices.

Skills Requirements

The skills and expertise required for tenderers include:

  • Expertise in OPC DA and OPC Classic architecture, including DCOM communication protocols.
  • Experience in re-engineering or developing communication protocols for control systems.
  • Knowledge of Windows operating system security updates and their impact on DCOM-based communications.
  • Proficiency in cybersecurity best practices relevant to industrial control systems.
  • Capability to implement, test, and support secure communication solutions in control environments.
  • Strong technical documentation and support skills for deployment and maintenance.
This summary is AI generated. Download the tender documents for all the information.

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