I/O modules

The GE DS200MBHAG1A DS200MBHAG1AFC manage data exchange between Mark V turbine controllers. These communication boards handle serial and network-based protocol conversion. You can use either board to connect with HMIs, PLCs, and plant DCS systems. The units support multiple industrial protocols for flexible integration.

Communication and Protocol Specifications

The GE DS200MBHAG1A DS200MBHAG1AFC provide two configurable serial communication ports. These communication boards support Modbus RTU, Modbus ASCII, and DNP 3.0 protocols. You can configure each port independently for RS-232 or RS-485 operation. The units include a 128 KB FIFO buffer for smooth data handling.

Physical Dimensions and Weight

Each communication board weighs 0.31 kg for secure chassis mounting. The unit measures 235 mm long by 152 mm wide. Its PCB thickness reaches 1.6 mm with four internal copper layers. You can mount either board using four M4 screws through the designated holes.

Interface and Connection Points

Two 9-pin D-sub connectors provide the RS-232/RS-485 serial interfaces. A 50-pin ribbon cable header connects to the main turbine controller. The GE DS200MBHAG1A DS200MBHAG1AFC include a 4-pin power input connector. You will find eight LED indicators showing port activity and status. Additionally, six test points provide access for diagnostic measurements.

Energy Storage and Internal Circuitry

These communication boards store minimal energy for data buffering purposes. Eight electrolytic capacitors provide 220 µF of total bulk storage. These capacitors filter power supply noise for the communication processor. The boards do not contain any battery for configuration retention. An onboard EEPROM stores protocol settings and port configurations permanently.

Component Layout and Construction

A dedicated 16-bit communication processor manages all protocol conversion tasks. Two UART controllers handle the serial data streams independently. You will find 78 resistors, 52 capacitors, and 10 integrated circuits on the board. The GE DS200MBHAG1A DS200MBHAG1AFC include transient protection on all serial ports. A metal shield covers the processor section for electromagnetic interference reduction.

Variant Equivalence and Use

The GE DS200MBHAG1AFC represents a functional equivalent or later revision. Both versions share identical dimensions, connectors, and mounting hole locations. You can substitute one for the other without hardware modifications. Transitioning to these boards restores communication functionality to Mark V systems. Use GE DS200MBHAG1A DS200MBHAG1AFC for data exchange with plant DCS or SCADA systems. For best results, use shielded cables for all serial connections.

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