DS200SBCAG1A GE

¥999.00

The DS200SBCAG1A is a specialized communication board manufactured by General Electric (GE) for the Mark V Speedtronic Turbine Control System. The “SBCA” designation indicates a Serial Bus Communication Adapter, while the “G1A” suffix denotes the first-generation “A” revision of this critical communication interface module. This board serves as the primary communication gateway between the Mark V processor and external serial devices, enabling data exchange with plant DCS, SCADA systems, remote I/O, and other serial communication networks. The DS200SBCAG1A provides multiple serial ports with support for various communication protocols, making it an essential component for integrating the Mark V turbine control system with plant-wide automation and monitoring systems. As a legacy spare part, the DS200SBCAG1A is valued in power generation plants and industrial facilities operating GE turbines where reliable serial communication is essential for control system integration.

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Description

Key Technical Parameters

Parameter Specification
Function Serial bus communication adapter for Mark V system
Communication Ports 4x RS-232/RS-485 serial ports (software-configurable)
Protocols Supported MODBUS RTU, DNP3, GE proprietary Mark V communication protocols
Baud Rate 300 bps to 115.2 kbps (software-selectable)
Data Format 7 or 8 data bits, odd/even/no parity, 1 or 2 stop bits
Diagnostic Indicators 8 LEDs – 4 “TX” (transmit), 4 “RX” (receive), 1 “PWR OK”, 1 “COM ACT”
Isolation 2,500 VAC isolation between communication ports and backplane
Temperature Range 0 to +55°C ambient
Form Factor 6U VME, 1-slot width
Weight 0.5 kg (approx. 1.1 lbs)

Advantages & Core Features

  • Multiple serial ports – Four RS-232/RS-485 serial ports provide flexible connectivity to plant DCS, SCADA, remote I/O, and other serial devices.

  • Protocol flexibility – Supports MODBUS RTU, DNP3, and GE proprietary protocols, enabling integration with a wide range of automation and monitoring systems.

  • Software-configurable ports – Each port can be independently configured for RS-232 or RS-485, baud rate, data format, and protocol.

  • Diagnostic LEDs – Transmit/receive LEDs for each port provide immediate visual indication of communication activity, simplifying troubleshooting.

  • Galvanic isolation – 2,500 VAC isolation protects the Mark V backplane and processor from communication line voltage spikes and ground loops.

  • Compact 1-slot form factor – Occupies a single slot in the Mark V rack.

Application Cases

  • DCS integration – A combined-cycle plant uses the DS200SBCAG1A to communicate with the plant DCS via MODBUS RTU over RS-485, enabling real-time turbine data exchange.

  • SCADA connectivity – A pipeline facility uses the DS200SBCAG1A to transmit turbine status and control data to a central SCADA system.

  • Remote I/O communication – A chemical plant uses the DS200SBCAG1A to connect to remote I/O modules over RS-485.

  • Data logging – A hydroelectric plant uses the DS200SBCAG1A to send turbine performance data to a local data logger.

Comparison with Related Variants

Feature DS200SBCAG1A (Base) External Serial Gateway GE Mark VIe Communication Module
Serial Ports 4 Varies (1-4) Varies
Integration Direct Mark V backplane External wiring Mark VIe compatible only
Protocols MODBUS RTU, DNP3, GE proprietary Varies MODBUS, DNP3, IEC 61850
Isolation 2,500 VAC Varies 2,500 VAC
Availability Rare Common New
Cost High Low-moderate Very high

Selection Suggestions

  1. Assess communication requirements – Select the DS200SBCAG1A if you need to connect the Mark V system to MODBUS RTU or DNP3 devices.

  2. Count required ports – The board provides 4 serial ports. Ensure this is sufficient for your application.

  3. Determine interface type – Verify that RS-232 or RS-485 is compatible with your external devices.

  4. Check slot availability – The board occupies a single slot. Verify availability.

  5. Procurement – The DS200SBCAG1A is rare. Purchase from reputable suppliers offering functional testing (port verification, LED testing). Lead times: 8-12 weeks.

Important Precautions

  • Power down completely – De-energize the entire rack before insertion or removal. Hot-swapping is not supported.

  • ESD protection – Use wrist strap and anti-static mat.

  • Communication cable routing – Route communication cables away from high-voltage power cables to avoid noise coupling.

  • Configuration – Ensure each port is correctly configured for RS-232/RS-485, baud rate, and protocol before connecting to external devices.

  • Cleaning – Use compressed air only (max 50 PSI). No liquids.

  • Storage – Store at 10-30°C, 20-50% RH.

Final Expert Recommendation

The DS200SBCAG1A is a serial communication adapter designed for Mark V systems requiring integration with external serial devices. Its four software-configurable ports and support for MODBUS RTU and DNP3 protocols make it a flexible solution for plant DCS, SCADA, and remote I/O connectivity.

Select the DS200SBCAG1A when:

  • You need to connect the Mark V system to MODBUS RTU or DNP3 devices

  • You require up to 4 serial communication ports

  • You need galvanic isolation for communication lines

  • You have a clean indoor environment (no conformal coating required)

For most applications, the DS200SBCAG1A is the standard serial communication solution for Mark V systems. For applications requiring additional ports or protocols, consider multiple boards or external communication gateways.

When sourcing the DS200SBCAG1A, ensure functional testing of all ports and LEDs is performed. With proper installation and configuration, this board will provide years of reliable serial communication for Mark V turbine control systems.

SCHNEIDER 140CPU67160
GE DS200DCFBG1BNC
ENTERASYS A4H254-8F8T

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