Product Details
Description
The CI840A module controls communication between S800 I/O stations and the PROFIBUS DP network. Supporting the DP-V1 protocol and line redundancy, it enables advanced diagnostics and uninterrupted operation, ideal for high-reliability applications in oil, pharmaceutical, and utility industries.
Specifications
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Manufacturer: ABB
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Country of Origin: Sweden
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Model Number: CI840A
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Order Number: 3BSE041882R1
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Product Series: S800 I/O
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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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Redundancy: Supports dual-FCI line redundancy
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Input Voltage: 24 V DC
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Approximate Weight: 0.32 kg
Features
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Enhanced Diagnostics: Implements DP-V1 functionality for comprehensive alarm handling and acyclic data access to field instruments.
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Redundant Architecture: Supports seamless failover when used in a redundant pair, maintaining process stability during hardware or link faults.
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Hot-Swappable Design: Allows for the removal and replacement of the module under power without disturbing the remaining I/O cluster.
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Automatic Baud Rate Detection: Simplifies commissioning by automatically synchronizing with the network master's transmission speed.
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Status Monitoring: Integrated LED indicators provide local status for module health, network activity, and redundancy synchronization.
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
Redundant Automation Systems: Core Architecture, Business Value, and Technical Advantages
Unplanned downtime poses a major financial threat to process manufacturing. To prevent costly interruptions, engineers deploy redundant PLC and DCS architectures that ensure continuous operation when hardware fails. This technical guide explores redundancy principles, critical system nodes, and real-world scenarios.
Preventing Emergency Stop Spurious Trips in Industrial Control Systems
Emergency Stop pushbuttons use Normally Closed contacts for fail-safe safety, but mechanical wear can cause costly spurious trips. This technical guide examines E-Stop contact failure root causes, redundant hardware setups, PLC logic monitoring, and maintenance strategies to maximize plant availability.
Why 24V DC Is the Universal Standard for Industrial Automation Power Supplies
Industrial manufacturing requires continuous uptime to prevent equipment damage. Unlike AC power, 24V DC circuits seamlessly integrate with UPS units and battery banks. During main grid failures, a 24V DC backup system instantly maintains PLC memory, instrument loops, and critical safety valves without interruption.