Ge Appliances Mark Controls Upgrades Fact Sheet GEA14803_MkIV VIe Migration

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GE

Energy

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

GE’s latest technology, without changing your existing field

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

prefabricated package to enable a seamless Mark IV to Mark VIe

migration, replacing all of the vintage electronics in the existing

Mark IV cabinet. Standard wire harnesses connect the new Mark

VIe I/O to the Mark IV terminal boards with plug-in connectors

to ensure point-to-point connectivity.

Reliability of a Modern Control System

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

devices, you also retain the same control and protection philosophy

that has delivered operation and tripping reliability all these years.

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

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

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

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

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

Mark VIe can be repaired on-line.

Your board racks with hardwired backplanes are replaced with

smart I/O modules with local distributed processors to interface

with turbine devices. This eliminates berg jumpers for addressing,

PROMs to change, and BRAM/EEPROM for non-volatile memory.

I/O Enhancements

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

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

Additionally, the SOE can be synchronized between multiple units

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

monitored to see the actual light intensity instead of the simple

on/off indication of the Mark IV.

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

can also be located in adjacent cabinets, such as generator

protection panels to replace RTD monitors or analog meters on

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

performed by redundant I/O modules and coordinated with

another set of modules for auto synchronizing.

Even basic power distribution is improved. For example, your Mark

IV has two feeders to isolate critical and non-critical solenoids. The

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

diagnostics to monitor their status.

Operator Interface

The operator interface on the cabinet door is replaced with a

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

HMI/SCADA CIMPLICTY* graphics package with accurate turbine

screens, convenient navigation, superior alarm management,

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

The logging printer on the door is no longer needed since alarms

are logged in the HMI. Similarly, the new Trip History handles

significantly more points, with better time resolution, and stores

data for 30 trips.

Remote operator panels and Smart Remotes can be replaced with

HMIs and Historians that communicate in client/server configuration

on modern Ethernet networks. HMIs communicate directly with

the redundant controllers, thereby eliminating the existing Mark IV

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

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

available along with Modbus*, OPC, and GSM.

Mark* IV to Mark* VIe Migration

Gas Turbine Controls Upgrade fact sheet

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Mark VIeMark IV

Configuration and Diagnostic Tools

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

software is upgraded from 16 bit integer data to 32 bit floating

point and graphically represented as interconnected function

blocks. Data can be dragged and dropped between blocks or onto

trending screens. Features include block libraries, help files, math

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

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.

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

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.

Bently Nevada* Asset Condition Monitoring solutions are also

available for the turbine and driven load equipment with

communication on the same networks as the Mark VIe and DFE.

Benefits

• 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

GEA-14803 (10/06)

fact sheet

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.