Ge Appliances Mark Controls Upgrades Fact Sheet GEA14803_MkIV VIe Migration

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GE
Energy
Mark* IV to Mark* VIe Migration
Gas Turbine Controls Upgrade

fact sheet

Now you can upgrade your Mark* IV gas turbine control to

Since the I/O modules are distributed via 100MB Ethernet, they

GE’s latest technology, without changing your existing field

can also be located in adjacent cabinets, such as generator

terminations, field wiring, or turbine devices. GE Energy offers a

protection panels to replace RTD monitors or analog meters on

prefabricated package to enable a seamless Mark IV to Mark VIe

the door. The “25” backup synch check relay is now a function

migration, replacing all of the vintage electronics in the existing

performed by redundant I/O modules and coordinated with

Mark IV cabinet. Standard wire harnesses connect the new Mark

another set of modules for auto synchronizing.

VIe I/O to the Mark IV terminal boards with plug-in connectors
to ensure point-to-point connectivity.

Even basic power distribution is improved. For example, your Mark
IV has two feeders to isolate critical and non-critical solenoids. The

Reliability of a Modern Control System

new I/O has a pair of on-board fuses to isolate every solenoid and

In addition to retaining 100% of your field wiring and turbine

diagnostics to monitor their status.

devices, you also retain the same control and protection philosophy
that has delivered operation and tripping reliability all these years.

Operator Interface

Your upgraded Mark VIe control will still be triple redundant, but

The operator interface on the cabinet door is replaced with a

with improved fault tolerance. For example, failure of an A/D

modern HMI in the same location. Now, you have a Proficy*

converter in the Mark IV causes one of the three controllers to

HMI/SCADA CIMPLICTY* graphics package with accurate turbine

trip, but not in Mark VIe. Also, on-line repair of Mark IV systems

screens, convenient navigation, superior alarm management,

require that one of the three controllers be taken off-line, but the

and tools for editing, trending, data analysis, and exporting data.

Mark VIe can be repaired on-line.

The logging printer on the door is no longer needed since alarms
are logged in the HMI. Similarly, the new Trip History handles

Your board racks with hardwired backplanes are replaced with

significantly more points, with better time resolution, and stores

smart I/O modules with local distributed processors to interface

data for 30 trips.

with turbine devices. This eliminates berg jumpers for addressing,
PROMs to change, and BRAM/EEPROM for non-volatile memory.

Remote operator panels and Smart Remotes can be replaced with
HMIs and Historians that communicate in client/server configuration

I/O Enhancements

on modern Ethernet networks. HMIs communicate directly with

Your smart I/O modules will provide features like 1ms time-tags

the redundant controllers, thereby eliminating the existing Mark IV

for all contact inputs for Sequence of Events (SOE) monitoring.

Communicator module and the need for a backup display. For units

Additionally, the SOE can be synchronized between multiple units

with DCS links, a replica of the Mark IV simple data dump protocol is

and to a plant time source. Flame scanners will be continuously

available along with Modbus*, OPC, and GSM.

monitored to see the actual light intensity instead of the simple
on/off indication of the Mark IV.

fact sheet
Configuration and Diagnostic Tools

Benefits

The Mark VIe comes with the ToolboxST* software suite. Application

• Minimum downtime for upgrade by retaining field terminations

software is upgraded from 16 bit integer data to 32 bit floating
point and graphically represented as interconnected function

and turbine devices
• Improved fault tolerance and reliability

blocks. Data can be dragged and dropped between blocks or onto
trending screens. Features include block libraries, help files, math

• Enhanced on-line repair at the I/O module level

blocks, macros, logic and analog forcing. Changes to application

• Modern HMI tools for ease of operation

software can be made on-line without rebooting the controllers
as required in Mark IV.
ToolboxST is used to configure everything from I/O devices to
networks and operator stations. It provides more extensive and
precise diagnostics with clear messages to quickly identify fault
locations and reduce mean-time-to-repair.

• 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

Related Products
Generator excitation upgrades are also available with cost-effective
products, such as the Digital Front End (DFE), which replaces just
the control portion of the exciter without affecting the power

4-.

bridges. DFE shares the same ToolboxST software tools as the
Mark VIe, HMIs, and has peer-to-peer Ethernet communications
instead of hardwiring all signals.

Ii

Bently Nevada* Asset Condition Monitoring solutions are also

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available for the turbine and driven load equipment with
communication on the same networks as the Mark VIe and DFE.

Mark IV

Mark VIe

Contact Information
GE Energy
Control Solutions
3800 North Wilson Avenue
Loveland, CO 80538
energy.controlsolutions@ge.com
http://www.ge-energy.com/oc
800-835-5182 / +1 970-461-5201
©2005, General Electric Company. All rights reserved.
* Proficy and CIMPLICITY are registered trademarks of GE Fanuc Automation North America, Inc. Ethernet is a
registered trademark of Xerox Corporation. Mark, ToolboxST and Bently Nevada are trademarks of the General
Electric Company. Modbus is a registered trademark of Schneider Automation.
GEA-14803 (10/06)



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