ABB SPDSO14 Symphony Plus Digital Output Module 16-Channel
Product Overview
The ABB SPDSO14 is a high-density Digital Output (DO) module engineered for the ABB Bailey INFI 90, Symphony Harmony, and Symphony Plus distributed control systems (DCS). It serves as the primary command execution interface, allowing the controller to drive field devices such as solenoid valves, motor starters, actuators, and alarm indicators.
Equipped with 16 independent output channels, the SPDSO14 utilizes an open collector design (often interfaced with relay terminal units) to provide flexible switching for both AC and DC loads. The module features comprehensive optical isolation to protect sensitive control logic from field-side electrical surges and noise. With its hot-swappable architecture and per-channel LED diagnostics, the SPDSO14 ensures maximum system availability and simplified troubleshooting in mission-critical environments like power generation and petrochemical processing.
Technical Specifications
Detailed hardware and operational parameters for the SPDSO14:
| Parameter | Specification Details |
| Model Number | SPDSO14 |
| Manufacturer | ABB Bailey |
| Product Type | Digital Output (DO) Module |
| System Platform | Symphony Plus, Harmony, INFI 90 |
| Number of Channels | 16 Independent Channels |
| Output Type | Open Collector (typically drives external relays) |
| Load Capacity | Load dependent on termination unit (e.g., 5A @ 250VAC) |
| Isolation | Optical isolation between logic and field circuitry |
| Status Indicators | Dual LED indicators per channel (Status/Fault) |
| Hot-Swap Support | Yes (Module replacement during operation) |
| Operating Voltage | 24 VDC (Supplied via backplane) |
| Operating Temp | -20 °C to +70 °C |
| Dimensions (W x H x D) | 279.4 mm x 360.68 mm x 73.66 mm |
| Net Weight | 0.91 kg |
| Shipping Weight | 3.0 kg |
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Guide
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