ABB DI811 3BSE008552R1 Digital Input Modules

The ABB DI811 3BSE008552R1 is a 16-channel, 24 V DC isolated digital input module within the renowned ABB S800 I/O series. It is engineered to provide high-performance digital input signal acquisition for distributed control systems such as ABB 800xA and AC 800M.

The DI811 is notable for its channel-to-channel isolation, which ensures increased reliability and signal integrity in systems exposed to electrical noise or needing signal separation. Each input channel is electrically isolated, enhancing safety and system modularity. The module connects to field devices through compatible terminal units such as TU810V1, TU812V1, and TU830V1, offering flexible wiring options.

Key Features

• 16 individually isolated digital inputs

• Operates on 24 V DC nominal voltage (sink-type logic)

• Channel-to-channel isolation of 500 V

• Per-channel LED status indicators for diagnostics

• Designed for use in harsh industrial environments

• Compatible with multiple ABB terminal units (TU810, TU812, TU830)

• Certified for CE, UL, and marine use

• Hot-swappable for increased maintainability

Technical Specifications

Industry Applications

• Oil & Gas – Used in offshore/onshore monitoring stations

• Energy and Utilities – Monitoring digital signals in power generation units

• Metals and Mining – Signal isolation for sensors, safety switches, and relays

• Water & Wastewater – Field signal collection from valves and pump stations

• Pharmaceutical – High-precision digital input processing for critical systems

• Pulp & Paper – Used in distributed systems requiring isolated input integrity

Product Advantages

• Isolated Channel Design – Reduces risk of signal interference and cross-talk

• System Reliability – Channel isolation protects against surges and ground loops

• ABB S800 Compatibility – Seamless integration with AC 800M and 800xA systems

• Real-Time Diagnostics – LED indicators allow fast fault detection

• Hot Swapping Enabled – Ensures system uptime during maintenance

• Compliance Certified – Meets industrial safety, EMC, and marine standards

Frequently Asked Questions (FAQ)

1. What is the key difference between DI811 and DI810?

   DI811 features channel-to-channel isolation, while DI810 does not.

2. Can DI811 be used in high-noise environments?

   Yes, its 500 V isolation makes it ideal for electrically noisy areas.

3. What type of logic does it support?

   It supports sink-type logic (negative logic).

4. How are the inputs connected to the module?

   Via terminal units such as TU810V1, TU812V1, or TU830V1.

5. Is this module compatible with ABB 800xA?

   Yes, it is fully compatible with 800xA and AC 800M control systems.

6. Can I hot-swap this module during operation?

   Yes, DI811 supports hot-swapping without shutting down the system.

7. How is the module protected against environmental factors?

   It meets IP20 protection and is certified for marine and industrial use.

8. Are LEDs included for each channel?

   Yes, each of the 16 input channels has its own status LED.

9. Is this module certified for safety compliance?

   Yes, it has CE, UL, CSA, RoHS, and marine approvals.

10. What is the module’s weight?

    The DI811 weighs approximately 0.15 kg.