Product Details
Description
The CI840A-EA is the main intelligence unit for S800 I/O stations, managing up to 12 modules via the ModuleBus. It converts fieldbus commands into local I/O actions and reports process data to the master controller. Supporting PROFIBUS DP-V1, it enables advanced diagnostics and remote configuration, making it ideal for critical oil and gas, pharmaceutical, and power applications.
Specifications
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Manufacturer: ABB
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Country of Origin: Sweden
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Model Number: CI840A-EA (3BSE041882R1)
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Protocol: PROFIBUS DP-V1
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Baud Rate: Auto-detecting up to 12 Mbit/s
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I/O Capacity: Supports up to 12 S800 modules per station
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Redundancy: Full 1:1 redundancy support when paired
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Input Power: 24 VDC nominal
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Current Consumption: 160 mA typical
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Galvanic Isolation: Integrated system-to-field isolation
Features
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Redundant Fault Tolerance: Optimized for paired operation to eliminate single points of failure in the communication backbone.
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Smart Device Integration: Supports DP-V1 acyclic services, enabling deep diagnostic access to HART-compatible devices through the I/O rack.
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Deterministic Performance: Provides high-speed data processing and low-latency throughput for demanding real-time control loops.
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Dynamic Module Supervision: Automatically detects, initializes, and monitors the health of all connected analog and digital units in the cluster.
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Live Module Replacement: Supports hot-swapping functionality, allowing for the maintenance of individual I/O modules without halting the station bus.
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Hardened Industrial Design: Built to withstand harsh electromagnetic conditions and a wide operating temperature range in industrial cabinets.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Evolving SCADA System Architectures in Industrial Automation
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Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
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Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.