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
Implementing FIFO and LIFO Data Sequencing in PLC Programming
Data management serves as a cornerstone of modern industrial automation. Whether tracking materials on a conveyor or managing batch sequences in a process, engineers frequently rely on sequential logic. Two primary structures—First-In-First-Out (FIFO) and Last-In-First-Out (LIFO)—form the bedrock of this data handling. Mastering these blocks allows programmers to optimize complex machine operations efficiently.
Evolving SCADA System Architectures in Industrial Automation
A robust Supervisory Control and Data Acquisition (SCADA) system serves as the heartbeat of modern industrial operations. Understanding SCADA system architecture is vital for engineers designing efficient control systems. These architectures have evolved from isolated, monolithic structures to highly interconnected, networked ecosystems. Choosing the right design requires balancing data visibility, processing power, and long-term scalability requirements.
Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.