GE IS200VRTDH1DAC: General Electric Mark VI IS200 Series RTD Input Board

Name: GE IS200VRTDH1DAC: General Electric Mark VI IS200 Series RTD Input Board
Brand: General Electric

Model: IS200VRTDH1DAC

Brand General Electric

Series Mark VI

Model IS200VRTDH1DAC

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Technical Dossier

Product Details And Specifications

General Electric IS200 Series Technical Notes

The General Electric IS200 series represents the core I/O and control module platform of the Mark VI Turbine Control System, one of the most widely deployed distributed control architectures in global heavy industry. Installed across gas turbine power plants, combined-cycle facilities, petrochemical complexes, nuclear auxiliary systems, and offshore oil & gas platforms, the Mark VI / IS200 platform has accumulated decades of field-proven operational history. The IS200VRTDH1DAC is a Resistance Temperature Detector (RTD) input board within this ecosystem, responsible for acquiring temperature data from PT100 and PT1000 sensors across turbine hot gas paths, bearing housings, and exhaust systems. Its continued demand in the aftermarket reflects the long operational lifespan of Mark VI-controlled assets worldwide.

The Evolution of IS200 Architecture

The IS200 module family was introduced as the I/O backbone of the GE Mark VI Turbine Control System, succeeding the Mark V platform (TCCA, TCPS, TCEA boards) in the mid-1990s. Mark VI adopted a triple-redundant TMR (Triple Modular Redundancy) architecture for critical control paths, with IS200 modules distributed across three control racks (R, S, T) communicating over the IONet serial backplane. Early IS200 revisions used through-hole PCB construction; later revisions transitioned to surface-mount technology with improved EMI shielding. The platform reached maturity in the 2000s and entered a managed lifecycle phase as GE introduced the Mark VIe (IS420 series) successor platform. IS200 modules are no longer in active production, but remain in service at thousands of installed sites globally. Compatibility between IS200 revisions (e.g., H1 vs. H2 board revisions) requires verification against the specific Mark VI system software version and rack configuration. Cross-compatibility with Mark VIe is not supported without gateway hardware.

IS200 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced components within the GE Mark VI IS200 module family, classified by functional category:

RTD & Thermocouple Input Modules

IS200VRTDH1DAC: RTD input board, 16-channel PT100/PT1000, Mark VI VMR rack mount
IS200VRTDH1BAA: RTD input board, earlier B-revision, compatible with Mark VI TMR systems
IS200VTCCH1DAC: Thermocouple input board, 16-channel, cold junction compensation integrated
IS200VTCCH1BAA: Thermocouple input board, B-revision, legacy Mark VI rack configuration

Analog Input / Output Modules

IS200VAICH1DAC: Analog input board, 16-channel 4–20 mA / 0–10 V, 12-bit resolution
IS200VAOAH1BAA: Analog output board, 8-channel 4–20 mA, used for valve positioner control
IS200VAOCH1DAC: Analog output board, 16-channel, high-density configuration

Digital Input Modules

IS200VDICH1DAC: Digital input board, 24 VDC, 32-channel, contact sensing
IS200VDICH1BAA: Digital input board, B-revision, 24 VDC discrete input
IS200VSVOH1BAA: Servo output board, used for electro-hydraulic servo valve control

Digital Output Modules

IS200VDOAH1DAC: Digital output board, relay-type, 16-channel, 120/240 VAC rated
IS200VDOAH1BAA: Digital output board, B-revision relay output, legacy rack

CPU & Controller Boards

IS200UCVEH2A: Mark VI main controller board, VME-format, primary CPU module
IS200UCVEH2B: Mark VI controller board, B-revision, enhanced memory configuration
IS200EPDMG1A: Ethernet/IONet communication interface board, dual-port

Power Supply Modules

IS200EPSMG1A: Mark VI power supply module, 24 VDC regulated output, rack-mount
IS200EPSMG2A: Power supply module, enhanced current capacity variant

Quality Control for the IS200 Range

IS200 modules present specific test challenges due to their multi-layer backplane bus architecture and mixed analog/digital signal paths. DriveKNMS applies a structured verification protocol for each IS200 board processed:

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