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Product Overview
The ABB Bailey SPDSI13 is a high-performance Digital Input (DI) module developed for use in Symphony and INFI 90 Distributed Control Systems (DCS). Designed to monitor discrete signals from field devices such as push buttons, limit switches, and relay contacts, the SPDSI13 provides reliable state detection in mission-critical industrial automation environments.
It supports 32 input channels, each optically isolated to prevent electrical noise and interference. With high-speed processing, advanced diagnostics, and ruggedized construction, the SPDSI13 is ideal for digital signal acquisition in sectors that demand stable, scalable, and secure input interfaces.
Key Features
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32 digital input channels with optical isolation
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Compatible with ABB Symphony and INFI 90 DCS systems
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Designed for clean and dry contact inputs
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High immunity to electrical noise and surges
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LED indicators for real-time channel status and module health
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Plug-in modular construction for easy installation and maintenance
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Diagnostic features for input and communication health monitoring
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Wide operating temperature range for harsh environments
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Supports hot replacement in redundant configurations
Technical Specifications
| Item | Specification |
|---|---|
| Manufacturer | ABB |
| Product Name | Digital Input Module |
| Model Number | SPDSI13 |
| System Compatibility | Symphony, INFI 90 |
| Number of Channels | 32 digital inputs |
| Input Signal Type | 24 V DC dry contact |
| Input Isolation | Optical isolation per channel |
| Input Voltage Range | 18–30 V DC |
| Input Current | 2–5 mA typical |
| Input Response Time | <5 ms |
| Power Supply | From I/O chassis |
| Diagnostic Features | Input status monitoring, fault detection |
| Status Indicators | Per-channel LEDs and module-level status indicators |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% non-condensing |
| Mounting Type | Rack-mounted |
| Cooling Method | Natural convection |
| Hot-Swappable | Yes (when configured with redundancy) |
| Dimensions | 260 × 100 × 50 mm |
| Weight | 0.45 kg |
| Certifications | CE, UL, CSA (varies per unit) |
Industry Applications
The SPDSI13 is a versatile digital input module used across multiple industrial domains requiring robust discrete signal acquisition:
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Oil & Gas – For monitoring valve positions, safety interlocks, and alarm conditions.
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Power Generation – Tracks equipment statuses, breaker conditions, and field device states.
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Chemical & Petrochemical – Ensures reliable contact signal acquisition in hazardous areas.
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Water & Wastewater Treatment – Monitors pump states, level alarms, and operator inputs.
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Manufacturing & Assembly Lines – Integrates with safety circuits, switches, and sensors.
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Metals & Mining – Detects conveyor states, machine protection trips, and gate sensors.
Product Advantages
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High Channel Density – 32 channels per module reduce space and cost.
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Reliable Isolation – Optical isolation protects the controller from surges and ground loops.
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Flexible Deployment – Easily fits into Symphony or INFI 90-based systems.
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Field Diagnostics – Simplifies maintenance with LED status and fault indicators.
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Low Power Consumption – Efficient operation without excessive heat generation.
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Proven Industrial Durability – Performs in harsh temperature and vibration conditions.
Frequently Asked Questions (FAQ)
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Q: How many input points does the SPDSI13 support?
A: It supports 32 optically isolated digital input channels. -
Q: What type of digital inputs does this module accept?
A: It accepts 24 V DC clean or dry contact signals. -
Q: Is each input channel isolated?
A: Yes, each input channel features optical isolation for noise immunity. -
Q: Can this module be used in hazardous environments?
A: Yes, it’s designed for industrial use and can function in challenging environments, though additional enclosure certifications may be needed. -
Q: Is the SPDSI13 compatible with Symphony DCS?
A: Yes, it integrates directly with both Symphony and INFI 90 systems. -
Q: Are there diagnostic capabilities on the module?
A: Yes, per-channel LED indicators and built-in diagnostics monitor status and faults. -
Q: Is the module hot-swappable?
A: Yes, when used in a redundant configuration, it can be replaced without shutting down the system. -
Q: What is the input response time?
A: The module typically responds in under 5 milliseconds. -
Q: What is the installation method?
A: It is rack-mounted into ABB I/O chassis. -
Q: How much does the SPDSI13 weigh?
A: It weighs approximately 0.45 kg.
Related ABB Bailey Models
| Model | Description |
|---|---|
| SPDSI12 | 32-Channel Digital Input Module with extended diagnostics |
| SPDSO14 | 32-Channel Digital Output Module |
| SPASI23 | 16-Channel Analog Input Module |
| SPACA01 | Analog Control Actuator Module |
| IMMFP12 | Multi-Function Processor Module |
| INNIS21 | Network Interface Slave Module |
Popular ABB Bailey Models
| Model | Description |
|---|---|
| IPFLD125 | Field Power Supply Module |
| IMDSI14 | 16-Channel Digital Input Module |
| INICT13A | Network Interface Controller |
| IMTCL01 | Time Clock Link Module |
| IMASI23 | Analog Signal Input Module |
| IMDSO14 | Digital Output Module |
