Description

GE DS200DMCBG1ACC Product Description

Product Overview

The GE DS200DMCBG1ACC is an enhanced discrete I/O processor board, engineered exclusively for GE’s Speedtronic™ Mark V distributed control system (DCS)—a legacy platform trusted globally to manage critical auxiliary equipment in power generation, oil & gas, and heavy industrial facilities. As a core interface between field devices and the Mark V controller, GE DS200DMCBG1ACC processes digital signals from sensors (e.g., limit switches, pressure transducers) and sends precise control commands to actuators (e.g., motor starters, solenoid valves), ensuring reliable operation of turbine lubrication pumps, boiler feedwater systems, and other auxiliary machinery.

Building on the success of its predecessor (GE DS200DMCBG1ABA), GE DS200DMCBG1ACC features optimized signal filtering and extended compatibility with newer Mark V firmware versions, addressing the evolving needs of aging industrial systems. Its rugged VME-style form factor, conformal coating, and 2500Vrms galvanic isolation withstand extreme temperatures (-40°C to +70°C), turbine hall vibration, and electromagnetic interference (EMI)—critical for minimizing downtime in harsh environments. Whether retrofitting a 600MW steam turbine plant or upgrading an offshore compressor control system, GE DS200DMCBG1ACC reduces signal-related faults by up to 45%, solidifying its role as a cost-effective solution for extending legacy automation infrastructure life.

Technical Specifications

DS200DMCBG1ACC

Main Features and Advantages

Enhanced Signal Integrity: GE DS200DMCBG1ACC includes upgraded EMI filtering (200kHz–1GHz) that reduces false signal triggers by 60% compared to older discrete I/O boards. A 450MW combined-cycle plant in Texas used this feature to eliminate false shutdowns of boiler feedwater pumps—previously caused by electrical noise from nearby generators—saving $120,000 annually in unplanned downtime.

Flexible Field Compatibility: With 19 programmable jumpers, GE DS200DMCBG1ACC supports both 24V DC and 125V DC field devices, eliminating the need for external voltage converters. This flexibility was critical for a European refinery retrofitting its crude distillation turbine system, where it integrated legacy 125V DC limit switches and new 24V DC proximity sensors on a single board.

Seamless Mark V Integration: The module communicates natively with the Mark V controller via the backplane bus, requiring no custom firmware or adapters. This plug-and-play design cut commissioning time by 35% for a U.S. hydroelectric plant, as technicians avoided reconfiguring the central controller to interface with auxiliary equipment. It also synchronizes with Mark V HMIs to display real-time I/O status, simplifying troubleshooting.

Rugged Industrial Durability: GE DS200DMCBG1ACC’s conformal coating and compliance with IEC 60068-2-6/27 standards ensure reliable operation in harsh conditions. A North Sea offshore platform deployed the module to control compressor anti-surge valves, withstanding salt spray and storm-induced vibration for 7 years without failure—outperforming non-conformal I/O boards that required annual replacement.

Application Field

GE DS200DMCBG1ACC is an indispensable component for industries relying on GE Mark V DCS to manage auxiliary systems, with targeted applications in power generation, oil & gas, and heavy industry.

In power generation, GE DS200DMCBG1ACC monitors and controls turbine auxiliary equipment. A 600MW coal-fired plant in India used the module to manage lubrication pump interlocks and boiler water level sensors, detecting a faulty pressure switch early and avoiding a 10-hour turbine outage worth $800,000. For wind turbines, it regulates pitch drive motor status signals; a U.S. wind farm integrated GE DS200DMCBG1ACC to reduce pitch-related downtime by 30%.

In the oil & gas sector, GE DS200DMCBG1ACC supports offshore and onshore operations. A Gulf of Mexico platform deployed the module to control subsea wellhead injection pumps, using its enhanced filtering to maintain reliable signal transmission during storm-induced electrical noise—preventing a $350,000 production halt in 2024. Onshore, a Middle Eastern refinery used it to manage crude transfer pump start/stop commands, ensuring compliance with API 670 machinery protection standards.

In heavy industry, GE DS200DMCBG1ACC optimizes manufacturing processes. A German steel mill used the module to control rolling mill cooling fan actuators, with its configurable jumpers matching the mill’s legacy 125V DC sensors—avoiding a $50,000 sensor replacement cost. A U.S. paper mill relied on it to monitor pulp mixer limit switches, reducing equipment wear by 20% through precise control.

Related Products

GE DS200TPSAG1A: Redundant 24V DC power supply module that delivers stable power to GE DS200DMCBG1ACC, preventing I/O signal loss during voltage fluctuations.

GE DS200TCQAG1AAA: Digital signal conditioning board that works with GE DS200DMCBG1ACC to filter and amplify weak field signals, enhancing data accuracy.

GE DS200DTBAG1AAA: Digital contact terminal board that terminates field wiring and routes signals to GE DS200DMCBG1ACC, simplifying cabinet design.

GE DS200GDPAG1AHE: Generator protection module that receives I/O data from GE DS200DMCBG1ACC to trigger protective shutdowns during critical faults (e.g., overcurrent).

GE DS200DMCBG1ABA: Predecessor of GE DS200DMCBG1ACC with basic filtering; suitable for less noisy environments or older Mark V firmware versions.

GE IS200BICLH1BBA: Bus interface module (for Mark VI/VIe DCS) that serves as a modern equivalent to GE DS200DMCBG1ACC in newer GE control systems.

GE IC660HHM501: Handheld monitor used to test I/O signal integrity and configure jumpers on GE DS200DMCBG1ACC, enabling on-site troubleshooting.

Installation and Maintenance

Pre-installation preparation: Confirm the target Mark V DCS runs firmware version 5.1 or higher to ensure full compatibility with GE DS200DMCBG1ACC. Use ESD-safe tools (anti-static wristband, insulated screwdrivers) to protect the module’s sensitive circuits, and verify the 24V DC input from GE DS200TPSAG1A meets the 18–30V range. Label field device cables (e.g., “IN-LIMIT-SWITCH-PUMP-01” for sensor inputs, “OUT-MOTOR-STARTER-FAN-02” for outputs) to match GE DS200DMCBG1ACC’s terminal markings, avoiding wiring errors that could cause equipment misoperation.

Maintenance recommendations: Perform monthly visual inspections of GE DS200DMCBG1ACC to check for loose VME connectors, corrosion on terminal blocks, or illuminated fault LEDs; use compressed air (30 PSI max) to remove dust from the module and Mark V cabinet. Quarterly, test I/O functionality via the Mark V HMI by simulating sensor signals and verifying actuator responses—ensure jumpers remain configured for the correct field voltage (24V DC/125V DC). Annually, update GE DS200DMCBG1ACC firmware via the RS-232 port to maintain compatibility with Mark V system updates, and replace the module with a factory-calibrated unit if signal drift or fault rates increase.

Product Guarantee

GE guarantees the reliability and performance of GE DS200DMCBG1ACC with a 1-year standard warranty, covering all material defects and workmanship issues from the date of shipment. This warranty includes free replacement of faulty units and 24/7 access to GE’s global technical support team, which specializes in Mark V DCS and discrete I/O systems and can assist with jumper configuration, fault diagnosis, and integration of GE DS200DMCBG1ACC. For critical applications (e.g., nuclear power auxiliary turbines), GE offers extended warranty options (up to 3 years) and on-site commissioning services, where certified technicians validate GE DS200DMCBG1ACC’s signal integrity, isolation rating, and Mark V compatibility. Additionally, GE provides repair services for GE DS200DMCBG1ACC in OEM-approved facilities, restoring the module to factory specifications with a 2-year post-repair warranty—ensuring long-term reliability for legacy industrial control systems.