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Legacy Controls & Migration

Legacy Controls & Migration

 

Marrying today's technology to yesterday's controls for continuing life-cycle support...

 

Upgrade your control systems today! We offer a number of efficient pre-packaged upgrades to minimize downtime. Click on the tabs below for more information about legacy controls and migration programs.


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Mark IV to Mark VIe

GE offers a Mark IV to Mark VIe migration program to upgrade these legacy systems to modern technology with minimum downtime. Prefabricated bases with Mark VIe electronics are installed in the existing Mark IV cabinets and connected to the existing terminal boards with plug-in wire harnesses. Field terminations and turbine devices are retained to minimize installation time.

First generation operator interfaces are replaced with modern HMIs, graphics packages, configuration and diagnostics tools, and Ethernet networks. The Mark IV's serial communications to plant monitoring systems are replicated and modern protocols such as OPC are available to upgrade communications.

For power generation applications, a Digital Front End (DFE) upgrade is available for the control section of GE exciters. It shares the same configuration and diagnostics software as the Mark VIe (ControlST) to simplify maintenance.

Features

  • Minimum downtime for upgrade by retaining field terminations and turbine devices
  • Improved fault tolerance and reliability
  • Enhanced on-line repair at the I/O module level
  • Modern HMI tools for ease of operation
  • Modern maintenance tools and diagnostics to quickly identify faults
  • Flexible Ethernet networks to distribute data
  • Distributed I/O to integrate instrumentation in other cabinets
  • Compatible with all new turbine technology, such as dry low NOx

Mark V to Mark VIe

GE offers a Mark V to Mark VIe migration program to upgrade these legacy systems for heavy duty gas turbines with minimum downtime. Mark VIe processors, power supplies, and communications are installed in the existing Mark V modules and connected to the existing I/O interface. Field terminations and turbine devices are retained to minimize installation time.

Operator interfaces are replaced with modern HMIs, graphics packages, configuration and diagnostics tools, and Ethernet networks. The Mark V’s communications links to plant monitoring systems are replicated and modern protocols such as OPC are available to upgrade communications.

For power generation applications, a gateway is available for communication with EX2000 generator excitation systems. Also, a Digital Front End (DFE) upgrade of the control section of the exciter can be provided, which shares the same configuration and diagnostics software as the Mark VIe (ControlST) to simplify maintenance.

Features

  • Increased compute power and I/O capacity for new features to improve turbine performance and reliability
  • Modern, high-speed networks at all levels with Ethernet client/server capability
  • Many new I/O types to choose from and distribute in any configuration
  • Elimination of single-point communication failures within the control and options for cost-effective network redundancy between controls and HMIs
  • Ease of operation with improved graphics, alarm/event management, trending, etc.
  • More efficient maintenance with one, modern software tool for configuration of networks, processors, and I/O boards, along with editors, block libraries, and diagnostics
  • Minimum down time: dependant on site conditions upgrade requires as little as five outage days
  • Compatible with current programs for compliance with cybersecurity standards, maintenance programs, and remote monitoring & diagnostics

Above all, a Mark V upgrade gives you a clear path for future enhancements and life cycle support.

Mark VI to Mark VIe

Mark VI Control was introduced in 1999 for gas and steam turbine controls on generator and mechanical drives. This scalable control is applied to systems large and small, such as industrial steam turbine controls, large gas turbine control systems, and plant controls.

Normal Mark VI Control system production ended in 2009, after the widespread acceptance of the Mark VIe Control, its successor.  However, a full suite of spare parts is still in production to support Mark VI Control systems in the field.

Applications

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Descriptions English
Mark IV to Mark VIe Migration Fact sheet acrobat-reader
Mark IV to Mark VIe Migration Product Description acrobat-reader
Mark V to Mark VIe Migration Fact sheet acrobat-reader
Mark VI Training Simulator Fact sheet acrobat-reader
Mark VI Training Simulator Product Description acrobat-reader


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