Description
B&R 8LSA55.E2045D200-0 — High-Performance Digital Input Module
Product: 8LSA55.E2045D200-0, Digital Input Module
Manufacturer: B&R Industrial Automation (now part of ABB Group)
Product Line: X20 System — High-Performance I/O Series
Primary Application: A high-density, 16-channel digital input module designed for reliable acquisition of binary signals (ON/OFF states) from sensors, switches, and control devices in demanding industrial automation environments, featuring advanced diagnostics and fast response times.
1. Core Overview & Positioning
The B&R 8LSA55.E2045D200-0 is a premium digital input module within B&R’s modular X20 I/O system. The «8LSA55» identifier places it in a high-performance series known for enhanced speed, advanced diagnostics, and robust construction suitable for critical applications.
Key Value: It combines high channel density (16 inputs) with sophisticated diagnostic capabilities (wire-break and short-circuit detection) in a compact form factor, making it ideal for applications requiring both extensive I/O and reliable monitoring.
2. Key Features & Functions
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High-Density Input: Provides 16 independent, isolated digital input channels in a single module slot, optimizing control cabinet space.
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Advanced Diagnostics: Each channel supports wire-break detection and short-circuit detection when used with compatible 3-wire PNP sensors. This enables predictive maintenance and quick fault localization.
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Fast & Configurable Response: Features very fast response times (<1 ms) and software-configurable digital filters to eliminate contact bounce and electrical noise without sacrificing speed.
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Robust Electrical Design: Includes channel-to-channel and channel-to-system isolation (500V) for noise immunity and protection against ground potential differences.
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Clear Status Indication: Equipped with per-channel LED indicators (green/red) for immediate visual feedback on input state and diagnostic status.
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Hot-Swappable: Designed for online insertion and removal in live systems (with compatible X20 configuration), minimizing downtime for maintenance.
3. Technical Specifications
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Input Current: Typically 3-5 mA per channel at 24V.
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Isolation: 500 V between channels and between channels and the system bus.
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Filter Time: Configurable from 0.1 ms to 12.8 ms per channel in software.
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Connection: Via a removable 32-pin front connector.
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Diagnostics: Wire-break and short-circuit detection for 3-wire sensors.
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Mounting: Plugs into a standard X20 bus base module (e.g., X20BB19xx) on a DIN rail.
4. System Integration & Configuration
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Hardware Setup: The module installs into an X20 bus base, which is part of a distributed station that includes a power supply (X20PS…) and a communication interface (e.g., X20BC… for POWERLINK).
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Wiring: Field devices (e.g., pushbuttons, proximity sensors) are connected to the module’s front connector. For diagnostic features, 3-wire PNP sensors must be used.
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Software Configuration: The module is fully configured using B&R Automation Studio. Engineers set:
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Filter times for signal debouncing.
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Enable/disable diagnostic functions.
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Map each physical input to a process variable in the PLC program.
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Data Access: The state of all 16 inputs is read cyclically by the controller and is available for logic processing, alarm generation, and visualization.
5. Typical Applications
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Machine Status Monitoring: Reading limit switches, door sensors, and part presence sensors on automated assembly lines.
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Process Interlocks: Monitoring valve feedback, pump running status, and level switches in process control systems.
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High-Density Sensor Clusters: Applications with many discrete sensors, such as packaging machines, material handling systems, and automotive test stands.
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Condition Monitoring: Utilizing the diagnostic features to monitor sensor health and predict failures.
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