Overview
The ABB CBI 20 is a robust binary input module engineered for use within the Symphony DCS (Distributed Control System) architecture. It supports fast and accurate signal acquisition from field devices such as switches, relays, and sensors. With 32 inputs divided into two independent supply groups, the module ensures reliable signal separation and enhanced fault tolerance.
Moreover, the CBI 20 offers 1 ms time resolution for event detection, making it ideal for applications requiring precise sequence-of-events logging. In addition, its integrated module diagnostics and configurable filter times improve system reliability and reduce false triggering. The module is DIN-rail mountable and supports redundancy configurations for critical systems.
Therefore, it’s widely adopted in power generation, oil and gas, and process automation environments where input integrity and timing accuracy are essential.
Technical Data
| Parameter | Specification |
|---|---|
| Model Number | CBI 20 |
| Dimensions | 20.3 cm x 5.1 cm |
| Weight | 1.0 kg |
Typical Applications
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Power Plants: Captures fast binary events for turbine and switchgear monitoring.
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Oil & Gas Facilities: Interfaces with safety systems and remote I/O for real-time diagnostics.
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Process Automation: Used in chemical and manufacturing plants for input signal acquisition.
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Substations and Utilities: Supports sequence-of-events recording for fault analysis and protection.
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OEM Control Panels: Integrated into custom automation solutions requiring high-speed input processing.
For instance, operators in substations rely on its 1 ms resolution to reconstruct fault sequences accurately. In addition, its galvanic isolation enhances safety and signal integrity in high-voltage environments.
FAQ
Q: What types of input signals does the CBI 20 support?
A: It supports 48 VDC, 24 VDC, and 8.2 VDC NAMUR-standard inputs.
Q: Can this module be used in redundant systems?
A: Yes, it supports redundancy configurations for critical applications.
Q: What is the benefit of 1 ms time resolution?
A: It allows precise event logging and sequence reconstruction for fault analysis.
Q: Is the module compatible with Symphony DCS systems?
A: Yes, it is designed specifically for ABB Symphony automation platforms.
Q: How are the inputs grouped?
A: The 32 inputs are divided into two supply groups of 16 each, improving fault isolation.
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|---|---|
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