Product Overview
The SPDSI14 is a high-density digital input module designed for the ABB Symphony Plus (S+ HR) Harmony Rack I/O system. While often incorrectly categorized in general listings, the SPDSI14 specifically functions as a Digital Sequence of Events (SOE) input module, collecting discrete signals from field devices such as limit switches, push buttons, and alarm contacts. It converts these field signals into filtered digital data for the Symphony Plus controller. Engineered for high-speed industrial environments, the module features robust optical isolation to protect the control backplane from electrical noise and transients, ensuring reliable logic execution in utility-scale power and process automation.
Detailed Technical Specifications
| Feature | Specification |
| Manufacturer | ABB |
| Model Number | SPDSI14 |
| Product Type | Digital Input Module (Sequence of Events) |
| System Compatibility | Symphony Plus, Harmony Rack I/O (S+ HR) |
| Input Channels | 14 Digital Input Channels |
| Input Voltage | Typically 24 VDC / 48 VDC (Configuration dependent) |
| Isolation | Optical and electrical isolation (Channel-to-Bus) |
| Input Filtering | Hardware and software debouncing filters |
| Power Consumption | Low power dissipation for rack-mount density |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | -40 °C to +85 °C |
| Dimensions | 30.5 cm x 17.8 cm x 5.1 cm (12.0" x 7.0" x 2.0") |
| Net Weight | 0.2 kg (6.1 oz) |
| Tariff Code | 8538907080 |
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Guide
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