DS200TCDAG1BDB GE Mark V I/O Board Digital Input Output Turbine Control

Description

Product Overview

The GE DS200TCDAG1BDB is a Digital I/O Board. It belongs to the Mark V Speedtronic series. GE designed this board for steam and gas turbine control systems. The Mark V uses triple modular redundant (TMR) technology for high reliability.

What Makes This Board Special

• 12 relay channels for digital outputs
• Three product revisions – BDB version has all updates
• Hardware jumpers for flexible configuration
• IONET communication for fast data transfer
• Wide temperature range -30 to +65°C

Technical Specifications

• Brand: General Electric (GE)
• Model: DS200TCDAG1BDB
• Series: Mark V Speedtronic / Mark V LM
• Product Type: Digital I/O Board (TCDA)
• Functional Abbreviation: TCDA
• Power Requirements: +5V DC, 6 Amps
• Power Supply Voltage: 28V DC
• Relay Channels: 12
• Mounting: DIN rail
• Technology: Surface mount
• Operating Temperature: -30°C to +65°C
• Size: 15.9 cm (H) x 17.8 cm (W)
• Country of Origin: United States
• Repair Time: 3-7 days
• Availability: In Stock
• Manual: GEI-100182B
• Revision Quantity: 3 revisions
• Backwards Compatible: Yes, with first two revisions

Model Number Breakdown

• DS200 = General Electric Mark V series prefix
• TCDA = Functional abbreviation (Digital I/O board)
• G = Assembly type (Normal assembly)
• 1 = Revision number
• BDB = Specific revision with three product revisions

Hardware Features

• LED panel – shows board status at a glance
• Resistor network arrays – for voltage limiting
• Pin connectors – vertical plug type
• Integrated circuits – surface mount technology
• Capacitors and relays – for signal processing
• PCB coating – protects against wear and contamination
• Factory drilled holes – for easy mounting
• Alignment marks – along board edge for correct installation

Jumper Settings Guide

• J1, J8 – Factory testing only. Do not change.
• J2, J3 – IONET termination resistors
• J4, J5, J6 – IONET ID addressing. Leave at factory settings.
• J7 – Enables stall timer
• For complete jumper details, see Appendix A in the manual.

Connectors on This Board

• JP – Distributes power from TCPS board to Q11, Q21, Q51 cores
• JQ – Connects to DTBA board for contact input signals
• JR – Connects to DTBB board for contact input signals
• JO1 – Sends relay signals to TCRA board (location 4)
• JO2 – Sends relay signals to TCRA board (location 5)
• JX1 – Shielded cable for IONET signals to TCEA board
• JX2 – Same function as JX1 (use either port)

How This Board Works

• It manages digital contact input signals from DTBA and DTBB boards.
• It handles contact output signals (relays and solenoids) from TCRA boards.
• Signals travel through the IONET network.
• The board works inside the Mark V R1 core.
• Software configuration uses the HMI I/O Configuration Editor.
• Set contact input inversions through the software.

Compatible Boards in the Same Core

• TCEA
• TCQE
• TCQA
• UCPB
• STCA

Installation Guide

• Mount on DIN rail in the correct core (Q11, Q21, or Q51).
• Use alignment marks along the board edge.
• Secure with factory-drilled mounting holes.
• Connect JP for power distribution.
• Attach JQ and JR for input signals from DTBA and DTBB.
• Connect JO1 and JO2 for output signals to TCRA boards.
• Use JX1 or JX2 for IONET communication.
• Verify jumper settings before powering on.
• Refer to manual GEI-100182B for full details.

Configuration Tips

• Set hardware jumpers J4-J6 for IONET ID. Leave at factory defaults.
• Enable stall timer with J7 jumper if needed.
• Use HMI I/O Configuration Editor for software settings.
• Input constants for contact input inversions via software.
• No DIP switches – all software controlled.

Maintenance & Diagnostics

• Check LED panel for board status.
• Monitor MODULE OK indicator during operation.
• Use IONET diagnostics through the operator interface.
• The board reports faults via the Mark V alarm system.
• Replace board if relay channels fail or IONET drops.
• Keep PCB coating intact – do not scratch.

Compatibility Notes

• Works with Mark V Speedtronic turbine control systems.
• Compatible with DTBA and DTBB terminal boards.
• Works with TCRA boards for relay outputs.
• Backwards compatible with first two revisions of TCDA board.
• Use with TCEA, TCQE, TCQA, UCPB, STCA in same core.

Typical Applications

• GE steam turbine control systems
• GE gas turbine control systems
• Digital contact input monitoring
• Relay and solenoid output control
• Industrial power generation plants

Diagnostic Capabilities

• IONET communication status monitoring
• Contact input signal verification
• Relay output channel testing
• Stall timer status check
• Power supply voltage monitoring (28V DC, 5V DC)

Warranty & Shipping

• 12 months warranty from delivery date.
• Covers manufacturing defects only.
• Does not cover wrong jumper settings or improper installation.
• We ship by FedEx, UPS, or DHL.
• Tracking number provided after dispatch.

Package List

• 1 x DS200TCDAG1BDB Digital I/O Board
• No cables or connectors included (sold separately)
• Manual available as PDF upon request (GEI-100182B)

Professional FAQ

• What is the difference between DS200TCDAG1 and DS200TCDAG1BDB?
• The BDB version has three product revisions. The original TCDAG1 does not have these updates. BDB is more advanced.
• Can I use this board with Mark VI or Mark VIe systems?
• No. This board works only with Mark V Speedtronic systems. Check your system version before buying.
• Experience: My IONET communication keeps failing. What should I check?
• Check jumpers J2 and J3 for termination resistors. Also verify J4-J6 IONET ID settings. Wrong addressing causes communication loss.
• Experience: One relay channel stopped working. Is the whole board bad?
• Not necessarily. Other channels may still work. Replace the board if the failed channel is critical. We have spare boards in stock.
• Buying guide: Do I need the BDB revision or can I use older TCDA boards?
• Use BDB for new installations. It has all three revisions. Older boards may lack features. BDB is backwards compatible with older revisions.
• Buying guide: How many relay channels do I need for my turbine?
• Count your solenoids and relays first. This board has 12 channels. Use multiple boards if you need more outputs.
• Buying guide: What power supply do I need for this board?
• You need +5V DC at 6 Amps and 28V DC supply. The Mark V rack usually provides these. Verify before connecting.
• Can I configure jumpers without the manual?
• No. Always use Appendix A in manual GEI-100182B. Wrong jumper settings may damage the board or connected devices.

For questions or orders, contact us: +86 158 8020 0923 (WhatsApp)

Copyright © 2026 PLCDCS HUB Limited. All rights reserved.
Original Source: https://plcdcshub.com/
Partner: Powergear X Automation Limited
Oiltech Controls Limited