ABB CI810B 3BSE020520R1 – Fieldbus Communication Interface | AC800M DCS Platform
Engineering Background
The ABB CI810B (catalog ref. 3BSE020520R1) is a dedicated Fieldbus Communication Interface module engineered for the ABB AC800M Distributed Control System platform. Designed to bridge the AC800M controller with PROFIBUS DP field devices, it delivers deterministic, high-speed process data exchange in demanding industrial environments — from power generation and oil & gas to pulp & paper and chemical processing.
Product Positioning
As a procurement engineer sourcing automation spares or system expansion modules, the CI810B represents ABB’s proven approach to fieldbus integration: a single-slot, hot-standby-capable interface that eliminates the need for external gateways. Konmask.com supplies this module from verified surplus and authorized channels, fully tested and ready for immediate deployment.
Complete Technical Specifications
- Part Number: CI810B
- ABB Reference: 3BSE020520R1
- Platform Compatibility: ABB AC800M (S800 I/O system)
- Communication Protocol: PROFIBUS DP (IEC 61158 / EN 50170)
- PROFIBUS DP Speed: Up to 12 Mbit/s
- Max. DP Slaves: 125 per segment
- Redundancy Support: Hot standby (HSB) capable
- Module Format: Single-slot plug-in module for AC800M controller unit
- Power Supply: Supplied via AC800M backplane (no external PSU required)
- Operating Temperature: 0 °C to +55 °C
- Storage Temperature: −25 °C to +70 °C
- Relative Humidity: 5–95% RH (non-condensing)
- Weight: Approx. 400 g
- Certifications: CE, UL, cUL (per ABB product documentation)
- Firmware: Configurable via ABB Control Builder M
Proven Application Environments
- Oil & Gas: PROFIBUS DP integration of field transmitters, valve positioners, and motor starters in upstream/downstream DCS architectures
- Power Generation: Turbine control and BOP (Balance of Plant) fieldbus networks requiring redundant communication
- Pulp & Paper: High-node-count PROFIBUS segments for distributed actuator and sensor networks
- Chemical & Petrochemical: SIL-rated process loops where deterministic fieldbus timing is critical
- Water & Wastewater: Remote I/O expansion over PROFIBUS DP in geographically distributed plants
Engineering Advantages
- Native AC800M Integration: No external gateway or protocol converter — CI810B slots directly into the controller unit, minimizing latency and single points of failure
- Hot Standby Redundancy: Supports HSB configuration for continuous availability in critical process loops
- High Node Density: Up to 125 DP slaves per interface, reducing the number of modules required for large fieldbus segments
- Full-Speed PROFIBUS: 12 Mbit/s maximum baud rate ensures fast scan cycles for time-critical process data
- Seamless Engineering: Configured entirely within ABB Control Builder M — no third-party tools required
- Proven Reliability: Deployed in thousands of AC800M installations globally across safety-critical industries
System Architecture & Signal Flow
The CI810B occupies a dedicated communication slot within the AC800M controller unit. On the controller side, it communicates with the PM8xx processor module via the internal S-bus. On the field side, it presents a standard 9-pin D-sub PROFIBUS DP connector. The module autonomously manages DP master class 1 (DPM1) cyclic data exchange with all configured slaves, offloading fieldbus polling from the main CPU and ensuring deterministic update rates independent of application cycle load.
In redundant configurations, two CI810B modules operate in active/standby mode. On primary failure, the standby module assumes master role within one bus cycle, with no data loss to the AC800M application layer.
Sourcing & Quality Verification
- Source: Verified surplus and authorized distribution channels
- Inspection: Each unit visually inspected for physical integrity, label authenticity, and firmware version prior to shipment
- Functional Test: Power-on and communication self-test performed where test fixtures are available
- Packaging: Anti-static bag + foam-lined carton for safe international transit
- Documentation: ABB datasheet and declaration of conformity available on request
- Warranty: 90-day Konmask operational warranty against DOA defects
Procurement Process
- Confirm Compatibility: Verify your AC800M controller unit revision and Control Builder M version against CI810B firmware requirements
- Request Quote: Contact support@konmask.com with quantity, required delivery date, and destination port
- Order Confirmation: Receive proforma invoice with lead time, shipping method, and Incoterms
- Shipment & Tracking: DHL / FedEx express with full tracking; export documentation (CO, packing list, commercial invoice) included
- Incoming Inspection: Konmask recommends incoming QC against provided datasheet before installation
Technical FAQ
- Q: Is CI810B compatible with AC800M PM851, PM856, and PM860 processors?
- A: Yes. The CI810B is compatible with all AC800M PM8xx series processor modules. Confirm firmware revision compatibility via ABB Control Builder M release notes.
- Q: Can CI810B operate as a PROFIBUS DP Class 2 master?
- A: The CI810B operates as a DPM1 (Class 1) cyclic master. DPM2 acyclic services are supported for parameterization via Control Builder M engineering tools.
- Q: What is the maximum cable length at 12 Mbit/s?
- A: Per PROFIBUS standard, maximum segment length at 12 Mbit/s is 100 m (Type A cable). Use repeaters for longer runs or lower baud rates for extended distances.
- Q: Is this module suitable for SIL 2 / SIL 3 safety applications?
- A: The CI810B is a standard (non-safety) communication module. For SIL-rated fieldbus communication in AC800M Safety, refer to ABB’s dedicated safety I/O and communication modules.
- Q: Do you provide an ABB factory warranty?
- A: Konmask supplies verified surplus stock covered by our 90-day operational warranty. For new factory-sealed units with full ABB warranty, please specify at time of inquiry.
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