Description
Key Specifications
| Parameter | Specification |
|---|---|
| Discrete Inputs | 16 optically isolated digital inputs (24 VDC) |
| Discrete Outputs | 16 optically isolated digital outputs (24 VDC, 0.5 A per channel) |
| Serial Ports | 2 configurable serial ports (RS-232, RS-422, RS-485) |
| Serial Data Rate | Up to 115.2 kbps |
| Ethernet Bridge | 2 Ethernet ports (10/100/1000Base-T) for I/O Net and plant network bridging |
| Protocol Support | I/O Net, Modbus TCP, Modbus RTU, EtherNet/IP, DNP3 |
| Serial Protocols | Modbus RTU, DNP3, ASCII, GE Serial |
| Isolation | 1500 VDC (I/O-to-backplane, serial-to-backplane) |
| Diagnostics | 500-event fault log with timestamps |
| Communication | I/O Net (dual Ethernet ports for redundancy) |
| Form Factor | 6U VME64x (160 × 233 mm), single-slot width |
| Indicators | Per-channel LED, serial port status, module health, communication status |
| Operating Temp | 0 °C to +60 °C |
| Power Draw | 10 W (+5 V / +3.3 VDC) + external 24 VDC field power |
| Connectors | Front-panel terminal block with gold-plated contacts and captive washer screws + DB9 serial ports + RJ45 Ethernet ports |
Advantages & Distinctive Features
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Multi-Function Integration: Combines 16 DI, 16 DO, 2 serial ports, and Ethernet bridging in one module.
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Versatile Serial Support: RS-232, RS-422, RS-485 with Modbus RTU and DNP3 protocols.
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Ethernet Bridge: Two Ethernet ports enable I/O Net communication and plant network bridging.
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Optical Isolation: 1500 VDC isolation protects the backplane from field wiring faults.
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Protocol Gateway: Converts between serial and Ethernet protocols—enables legacy device integration.
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High-Density I/O: 16 inputs and 16 outputs for discrete control.
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Gold-Plated Captive Washer Terminals: Corrosion-resistant and vibration-proof.
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Hot-Swappable: No rack power-down for replacement.
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Direct Retrofit: Replaces older DSCB series boards.
Application Fields
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Gas Turbines: Discrete valve control, serial communication with field devices, network bridging
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Steam Turbines: Discrete valve control, serial communication, network bridging
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Compressors: Discrete control, serial communication with sensors
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Balance of Plant: Discrete I/O, serial device integration
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Legacy Device Integration: Serial-to-Ethernet protocol conversion
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Offshore platforms: Communication bridging
Comparison with WDIIH3A and Competitors
| Feature | GE IS210DSCBH1A | GE IS200WDIIH3A | Competitor A | Competitor B |
|---|---|---|---|---|
| Discrete Inputs | 16 | 16 | 16 | 16 |
| Discrete Outputs | 16 | 16 | 16 | 16 |
| Serial Ports | 2 (RS-232/422/485) | None | None | 1 |
| Ethernet Bridge | Yes (2 ports) | No | No | Yes |
| Protocol Conversion | Yes | No | No | Yes |
| Hot-Swappable | Yes | Yes | No | Yes |
Selection Guidelines
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When to choose: Applications requiring combined discrete I/O, serial communication, and network bridging.
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Serial Configuration: Configure port type (RS-232/422/485), baud rate, parity, and protocol.
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Ethernet Configuration: Configure bridging and protocol settings.
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Discrete I/O: Configure inputs for sourcing/sinking; outputs for sourcing/sinking.
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Compatibility: Fits all Mark VIe VME64x racks. Requires ControlST v6.0 or higher.
Operational Precautions
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Wiring: Follow GE wiring diagrams—correct polarity for external field power.
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Serial Connections: Verify wiring for RS-232/422/485—incorrect wiring can damage ports.
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Ethernet Configuration: Configure IP addresses and protocol settings before plant network connection.
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LED Diagnostics: Green = normal; Amber = fault; Red = module fault.
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Fault Log: Access 500-event log via Toolbox ST.
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Hot-Swap: Remove/insert slowly under power.
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Spare Stock: Maintain 1 spare per 3–4 racks.
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ESD: Handle by edges with grounded wrist strap.
A-B 1756-IF8
A-B 1756-PA75
A-B 1756-IF8
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