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ABB SPDSI22 16-Channel Universal Digital Input Module Symphony Plus

The ABB SPDSI22 (also known as DSI22) is a high-density universal Digital Input module that processes 16 independent channels. Each channel can be configured via jumpers to handle different voltage levels commonly found in industrial plants. It integrates seamlessly into Symphony Plus HR Series racks and is backward-compatible with Harmony / INFI 90 systems. This module is optimized for reliable monitoring of switch contacts, relay states, sensors, and other binary signals, supporting critical control and diagnostics in DCS applications.

• 16 Universal Channels: Independently configurable for multiple voltage levels.

• Wide Voltage Support: 24/48/125 VDC and 120 VAC inputs.

• Jumper Configuration: 32 jumpers for precise channel-voltage matching and flexibility.

• High Density: Compact design maximizes I/O count in limited rack space.

• Robust Isolation: Excellent noise immunity for harsh industrial environments.

• Hot-Swappable: Supports online replacement in compatible configurations.

• Backward Compatibility: Form-fit-function with legacy Harmony / INFI 90 systems.

• Proven Reliability: Widely used in power, oil & gas, and process industries.

• Product Type: Universal Digital Input Module (DI)

• Ordering Code: SPDSI22

• Number of Channels: 16

• Input Voltages: 24 VDC, 48 VDC, 125 VDC, 120 VAC (universal via jumpers)

• Configuration: 32 jumpers

• Input Impedance: Approx. 4.7 kΩ (typical)

• Response Time: Approx. 10 ms

• Power Requirements: Standard Harmony Rack supply (+5 VDC, etc.)

• Dimensions (approx.): Height 358.14 mm, Width 269.24 mm, Depth 73.66 mm

• Weight: Approx. 0.2–0.8 kg

• Compatibility: Symphony Plus HR Series, Harmony / INFI 90

• Mounting: Harmony Rack with appropriate terminal units

• Operating Temperature: Standard industrial range (0°C to +70°C typical)

• Power generation and turbine control systems

• Oil & gas and petrochemical facilities

• Chemical and pharmaceutical plants

• Water & wastewater treatment

• Discrete signal monitoring in DCS/SCADA systems

• Retrofit and expansion of existing Harmony / INFI 90 installations

Q: What is the main function of the ABB SPDSI22?A: It is a 16-channel universal digital input module that accepts multiple voltage levels for acquiring discrete field signals in Symphony Plus systems.

Q: Which voltage levels does it support?A: 24 VDC, 48 VDC, 125 VDC, and 120 VAC, configurable per channel via jumpers.

Q: How many jumpers does it have?A: 32 jumpers for flexible input voltage configuration.

Q: Is it compatible with legacy systems?A: Yes, fully compatible with Symphony Plus HR Series and legacy Harmony / INFI 90 installations.

Q: What is the channel count?A: 16 independent digital input channels.

Q: Does it support hot-swapping?A: Yes, in supported Harmony rack configurations to minimize downtime.

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

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How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.