Process Communication Solution – ABB CI851K01 | AC800M Series
Where This Product Is Used
The ABB CI851K01 (3BSE018101R1) Communication Interface Module is a PROFIBUS DP master module designed for the ABB AC800M Distributed Control System (DCS). It is widely deployed in mission-critical industrial environments where deterministic fieldbus communication is essential:
- Oil & Gas: Upstream wellhead automation, downstream refinery process control, and pipeline SCADA integration.
- Power Generation: Turbine control systems, boiler management, and substation automation interfacing with IED devices.
- Pulp & Paper / Chemical: Continuous process lines requiring high-speed cyclic data exchange between AC800M controllers and PROFIBUS DP field devices (drives, valves, transmitters).
- Water & Wastewater: Pump station automation and treatment plant DCS architectures.
- Pharmaceutical & Food: FDA-compliant batch process control with validated fieldbus topologies.
Technical Specifications
| Manufacturer Part Number | CI851K01 |
| ABB Order Code | 3BSE018101R1 |
| Module Type | Communication Interface Module — PROFIBUS DP Master |
| Compatible Platform | ABB AC800M DCS (PM851, PM856, PM860, PM861, PM864, PM866 series) |
| Fieldbus Protocol | PROFIBUS DP V0 / V1 |
| Max Slave Devices | Up to 125 PROFIBUS DP slaves per segment |
| Baud Rate | 9.6 kbps – 12 Mbps (auto-negotiated) |
| Connector | 9-pin D-Sub (DB9) female |
| Backplane Interface | AC800M S800 I/O bus |
| Power Consumption | Supplied via AC800M controller backplane |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -40 °C to +70 °C |
| Weight | 400 g (approx.) |
| Form Factor | Single-width plug-in module |
Why Engineers Specify This Model
- Native AC800M Integration: Plug-and-play with ABB’s Control Builder M engineering tool — no third-party gateway required.
- Deterministic Cyclic Communication: Guarantees scan-cycle synchronization between the AC800M controller and PROFIBUS DP field devices, critical for closed-loop process control.
- Redundancy-Ready: Supports hot-standby controller configurations when paired with redundant PM8xx processor modules.
- Broad Device Compatibility: Communicates with ABB S800 I/O, ABB drives (ACS series), Siemens ET200, Pepperl+Fuchs remote I/O, and hundreds of certified PROFIBUS DP slaves.
- Long Product Lifecycle: Part of ABB’s extended lifecycle commitment for AC800M, ensuring spare parts availability and firmware support.
Complete System Bill of Materials
For a fully operational AC800M PROFIBUS DP node, engineers typically specify:
- ABB PM864AK01 / PM866AK01 — AC800M Processor Module
- ABB CI851K01 (3BSE018101R1) — PROFIBUS DP Communication Interface Module (this item)
- ABB TB851 — PROFIBUS DP Termination Board
- ABB S800 I/O Modules (AI810, AO810, DI810, DO810 series)
- ABB TP830 / TP854 — Termination Panel
- PROFIBUS DP cable (shielded, 24 AWG, impedance 150 Ω)
- PROFIBUS DP bus terminator plugs (active, at both cable ends)
Compliance & Industry Standards
- PROFIBUS International (PI) certified — DP V0/V1 conformance tested
- CE Marking — EMC Directive 2014/30/EU compliant
- IEC 61158 / IEC 61784 — Fieldbus standard compliance
- UL / cUL listed (as part of AC800M system)
- ATEX / IECEx compatible when installed in approved enclosures
- RoHS compliant
Quality Assurance & Sourcing
At Konmask.com, every ABB CI851K01 unit is subject to our industrial-grade sourcing protocol:
- Traceable supply chain — sourced from authorized distributors and verified OEM channels.
- Pre-shipment functional inspection: visual check, label verification, and firmware version confirmation.
- Anti-static packaging with humidity indicator cards for long-haul international shipments.
- Batch documentation available on request (COC, test reports).
- Minimum 90-day warranty on all stocked units; extended warranty available.
How to Source This Part
Ready to procure the ABB CI851K01 / 3BSE018101R1?
- In-Stock Orders: Add to cart and check out directly — ships within 2 business days.
- Bulk / Project Quotation: Email support@konmask.com with your BOM and required delivery date.
- Urgent Requirement: Call or WhatsApp +0086 19859288691 for same-day quotation.
- Lead Time Inquiry: Contact us for ETA on non-stocked quantities or factory-new sealed units.
Application-Specific FAQ
Q: Is CI851K01 compatible with AC800M firmware version 6.x?
A: Yes. CI851K01 is supported across AC800M firmware versions 5.x through 6.x. Always verify compatibility with your specific PM8xx processor firmware release notes in ABB’s Control Builder M documentation.
Q: Can I use CI851K01 as a PROFIBUS DP slave?
A: No. CI851K01 operates exclusively as a PROFIBUS DP Class 1 Master. For slave functionality, refer to ABB’s CI854 or CI856 modules.
Q: How many CI851K01 modules can be installed per AC800M controller?
A: Up to 12 communication interface modules can be installed per AC800M controller unit, subject to backplane slot availability and processor loading.
Q: Does CI851K01 support PROFIBUS PA?
A: Not directly. PROFIBUS PA requires a DP/PA coupler (e.g., ABB or Pepperl+Fuchs DP/PA Link) between the CI851K01 DP master port and the PA segment.
Q: What is the difference between CI851K01 and CI851?
A: CI851K01 (3BSE018101R1) is the current production revision with enhanced EMC performance and extended temperature tolerance. It is a drop-in replacement for the earlier CI851 variant.
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