The ABB 3BSE025255R1, designated as the CI820V1, is a high-performance communication interface module for the AC 800M controller platform. It is specifically engineered to enable redundant communication between the controller and the S800 I/O system over the Advant Fieldbus 100 (AF 100). By supporting a dual-channel configuration, the CI820V1 ensures that the control system remains operational even if one communication path fails, making it an essential component for high-availability industrial processes where downtime is not an option.
Product Specifications (Datasheet)
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Model: CI820V1
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Part Number: 3BSE025255R1
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Protocol: Advant Fieldbus 100 (AF 100)
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Dimensions: 186 mm x 119 mm x 45 mm (H x W x D)
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Weight: 0.55 kg
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Country of Origin: Sweden
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Power Supply: 24 V DC (19.2 – 30 V)
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Power Consumption: Typ. 140 mA at 24 V
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Redundancy Support: Dual-channel (Line A and Line B)
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Module Type: S800 I/O Communication Interface
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Mounting: Vertical or Horizontal DIN rail via TP830 baseplate
Key Application Fields
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Continuous Process Industries: Ideal for oil refineries and chemical plants requiring 24/7 uptime.
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Power Grid Management: Facilitating reliable data exchange in substations and generation control centers.
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Critical Infrastructure: Managing life-safety systems and water treatment facilities where failure is a safety risk.
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Marine & Offshore: Providing redundant telemetry for engine monitoring and dynamic positioning systems.
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Large-Scale HVAC: Centralized control for skyscraper climate systems and airport terminal automation.
Product Usage Instructions
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Mounting: Snap the CI820V1 onto its required baseplate (typically TP830). Ensure the baseplate is firmly attached to a grounded 35mm DIN rail within a protected cabinet.
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Redundancy Link: For true hardware redundancy, two CI820V1 modules should be installed. Connect the AF 100 twisted-pair cables to both Line A and Line B terminals to establish independent communication paths.
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Address Setting: Configure the station address using the rotary switches or DIP switches located on the module or baseplate. Ensure each station on the AF 100 bus has a unique ID.
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Wiring: Use shielded twisted-pair cables for the AF 100 bus. Proper termination (82 or 150 ohms depending on cable type) must be applied at both ends of the physical bus segment.
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Initialization: Power up the module and verify the “Run” LED is green. Use the ABB Compact Control Builder or 800xA Engineering software to scan and configure the I/O cluster.
Q&A: Frequently Asked Questions
Q: What is the main advantage of the “V1” version compared to older CI820 models? A: The V1 version typically includes updated firmware and hardware components designed for better long-term reliability and compatibility with newer AC 800M firmware revisions.
Q: Does the CI820V1 support fiber optic connections? A: Directly, the CI820V1 interfaces with electrical twisted-pair AF 100. To use fiber optics, you must integrate an optical modem (such as the TB820V2) into the bus segment.
Q: Can I use this module without a redundant partner? A: Yes, the CI820V1 can operate in a single (non-redundant) configuration, but you will lose the “bumpless” failover capability that defines the module’s primary purpose.
Q: How do I identify a communication fault on one of the lines? A: The module features front-panel LEDs for Line A and Line B. If one line fails, its corresponding LED will turn off or turn red, while the system continues to communicate over the healthy line.
Explore the technical benefits of the CI820V1 and secure your system’s availability with our full range of AC 800M redundant components.
Similar Model Recommendations
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ABB CI810V1: A single-channel version of the AF 100 interface for non-redundant S800 I/O clusters.
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ABB CI820: The legacy version of the redundancy module, often used in older system maintenance.
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ABB PM864AK01: A redundant processor kit that frequently works as the master for CI820V1 interface units.
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ABB TB820V2: An optical bus modem used to extend AF 100 communication via fiber optics.
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ABB CI801: A communication interface specifically for PROFIBUS DP-V1 integration within the S800 system.
