Product Core Brief

• Full Model: CI854BK01
• ABB Article Code: 3BSE069449R1
• Kit Composition: Complete factory integrated set = CI854B communication module + matched TP854 DIN rail termination baseplate, single part number includes both components
• Brand: ABB Control Systems
• Series: CEX expansion bus communication module for AC800M / System 800xA DCS (New generation, direct successor of legacy CI854AK01)
• Core Function: PROFIBUS DP-V1 Class 2 master via controller internal CEX bus; dual DB9 ports on TP854 base support media line redundancy + module master redundancy, cyclic real-time I/O exchange, DP-V1 acyclic HART device parameter & diagnostic polling, compatible with S800/S900 distributed I/O, ACS series VFDs and third-party Profibus DP field instrumentsABB.
• Product Type: Slide-in CEX Profibus master communication interface full kit (module + baseplate)
• Key Specs: Dual DP-V1 independent trunk channels | Max 124 DP slaves per kit | 500V galvanic isolation | Official IEC hot-swap certified | Fully RoHS 2 compliantNote: Current standard active production model for all new 800xA projects; legacy CI854AK01 (3BSE030220R1) EOL, only used for old system maintenance spare replacement. Up to 12 CI854BK01 kits can be installed on one AC800M controller CEX busABB.

Core Model Difference: vs CI854AK01

Key Technical Specifications

• Power supply: Powered entirely by AC800M internal CEX backplane, typical consumption 190mA, max power dissipation 5W, no external 24V auxiliary power neededABB
• Profibus protocol: PROFIBUS DP-V0 cyclic real-time I/O + DP-V1 acyclic device parameter/diagnostic access (Class 2 Master)
• Baud rate range: 9.6 kbit/s ~ 12 Mbit/s full range software configurable in Control Builder M
• Physical interface: TP854 base integrates two female DB9 RS485 connectors for dual redundant trunk wiring; single segment max 32 slaves, with repeaters total 124 DP slaves per kit
• Cyclic data throughput: At 12 Mbit/s, total 4000 bytes combined input/output process data
• Minimum bus cycle time: 1ms (single slave at 12Mbit/s); typical 10–20ms multi-slave scan cycle
• Dual-layer redundancy capabilities
  1. Profibus media line redundancy: Two fully independent cable paths, automatic primary/secondary fault switchover within milliseconds
  2. Module master redundancy: Pair two kits for full Profibus master hot-backup, combined with CPU/CEX bus redundancy (BC810)
• Galvanic isolation: 500VAC 1-minute dielectric separation between Profibus field wiring side and controller CEX logic circuit
• Supported core industrial functions
  1. HCIR (Hot Configuration In Run): Add/remove Profibus slave devices online without full controller shutdown
  2. HART pass-through: Route DP-V1 HART secondary variables and fault diagnostics from AI815/AO815 HART I/O modules
  3. Aggregated full slave diagnostics: Wire-break, short-circuit, module undervoltage, slave offline alarm centralized to DCS HMI
  4. Fast automatic redundant bus switchover for safety critical control loops
• PCB coating: ISA-S71.04 G3 industrial conformal coating for mild corrosive power, pulp and chemical plant cabinet environments
• Status indicators: Module front multi-color LEDs: PWR, CEX RUN, BUS FAULT, CH1/CH2 Profibus communication status
• Mechanical lock: TP854 base with fixed alpha mechanical lock, prevents incompatible CEX communication modules forced insertion damage
• Operating ambient: 0 ℃ ~ +55 ℃ continuous duty; compact vertical narrow racks limited to 0 ~ +40 ℃ABB
• Storage range: -40 ℃ ~ +70 ℃, non-condensing RH 5–95%
• Certifications: CE, UL508, ATEX II 3G Ex nA IIC T4 Gc Zone 2, cULus Class I Div 2 Groups A-D; RoHS 2 / WEEE compliantABB
• Overall dimensions (module + base integrated set): W59 mm × H185 mm × D127.5 mm; total weight ~700gABB

Product Introduction

(3BSE069449R1) is the current-generation complete packaged PROFIBUS DP master gateway for AC800M / System 800xA DCS. The one-piece kit integrates CI854B communication board and matching DIN rail baseplate, eliminating separate baseplate procurement for maintenance spare replacement or new project construction.It inserts into the AC800M controller rack’s CEX expansion bus to connect all Profibus DP field assets: S800/S900 distributed I/O racks, ABB ACS series variable frequency drives, HART smart valve positioners and third-party DP transmitters/instruments.Dual independent DB9 ports on the base realize full media redundancy, eliminating single cable failure risk for safety-critical furnace, boiler and pipeline control loops. Galvanic isolation suppresses ground-loop EMI noise from long field trunk cables and variable frequency drives, avoiding intermittent I/O value freezing or random slave offline faults.DP-V1 Class2 master function enables direct access to smart device diagnostic data without separate HART multiplexers; HCIR online modification avoids full process shutdown during field device expansion or replacement. The biggest upgrade vs legacy CI854AK01 is official hot-swap support and RoHS environmental compliance, greatly reducing maintenance downtime and meeting global green manufacturing standards. Up to 12 complete sets can be installed in one rack to build large-scale multi-segment Profibus plant backbone architectures.

QA & Testing SOP (Transparency Building)

1. Incoming Inspection: Cross-reference serial numbers and 3BSE069449R1 full kit part code against ABB spare databases. Inspect dual DB9 connector pin integrity, alpha lock matching, full front LED bank functionality, complete matching CI854B module + base assembly and intact factory anti-static vacuum packaging to filter counterfeit stock.
2. Live Bench Testing: Install full kit inside test rack paired with PM865 CPU simulator. Run continuous 24-hour cyclic Profibus scan testing with mixed S800 I/O, drive and HART instrument slave nodes while logging stable CEX backplane supply via Fluke 115 multimeter. Simulate primary Profibus trunk disconnection, segment short-circuit and HCIR slave hot-add to validate automatic redundant bus failover and diagnostic flag timing.
3. Electrical Isolation Test: Use 500V Megger to measure insulation resistance between Profibus field circuit and CEX bus logic; pass threshold ≥10 MΩ. Inject 50Hz differential ground-loop noise to confirm no random slave communication loss or bus switchover jitter.
4. Firmware & Configuration Backup: Record factory default Profibus baud rate, slave address mapping and redundancy parameters via Control Builder M engineering software. Capture high-resolution photos of dual DB9 pinout and wiring layout for field commissioning reference.
5. Final Packaging: Fit plastic dust caps over both DB9 Profibus ports; keep module and baseplate matched as one complete set. Place full assembly inside foam-lined anti-static shielding bag, affix dated QC pass label before sealing in original factory carton.

Installation Pitfalls & Guide

❗Firmware Mismatch Risk: controller firmware older than v5.3.0 lacks CEX register mapping for fast dual-line redundant bus failover and optimized DP-V1 HART polling logic. Post-replacement, DCS switchover delay increases and throws intermittent PROFIBUS COMM LOSS alarms. Remediation: Flash matching firmware revision to PM86x CPU before installing the full kit.❗Redundancy Cabling Error Risk: Dual Profibus trunk lines must run separate physical cable trays to achieve true fault tolerance; routing both cables inside one tray completely negates media redundancy protection during tray damage events.❗Profibus Termination Rule Violation: Each Profibus segment only installs termination resistor on the farthest end slave device; duplicate or missing termination creates signal reflection, persistent scan jitter and random slave offline faults.❗Hot-Swap Precondition: Though certified hot-swap, pause all Profibus cyclic polling logic blocks in Control Builder M before module extraction to avoid temporary field device data loss.❗CEX Bus Quantity Limit: Max 12 full communication kits per single controller rack, exceeding this limit triggers CEX bus overload fault codes.❗ESD Damage Risk: Ungrounded handling exposes dual Profibus transceiver and CEX bus logic traces to static discharge from dry control room air. Field records show unprotected handling burns both communication channels simultaneously; full process unit downtime labor cost exceeds $1,420. Remediation: Place anti-static mat under controller rack, wear grounded wrist strap, touch bare cabinet chassis ground for 3 seconds before handling the module/baseplate assembly.

4-step Replacement Procedure (Support Hot-Swap)

1. Pre-install Preparation: supports certified hot-swap (rack 24V power remains energized). Photograph dual DB9 redundant trunk wiring layout, Profibus segment slave address mapping and redundancy mode configuration in Control Builder M; pause all Profibus cyclic polling logic blocks to suspend field device data exchange.
2. Removal: Unlatch base retention clip, slide the old CI854B module upward out of the base slot, disconnect dual DB9 Profibus trunk cables; store old module inside static-safe sleeve.
3. Installation: Take new complete kit, insert factory-matched CI854B module fully into the base and lock retention latch; reconnect dual redundant Profibus trunk cables to matching CH1/CH2 DB9 ports, install end-of-line termination resistor on each segment’s farthest slave device.
4. Power-on Commissioning Test: Rack power remains energized (hot-swap permitted). Verify front PWR, RUN and CH1/CH2 COM LEDs illuminate steady green, perform full Profibus slave scan to confirm all field devices communicate correctly, test primary trunk cable disconnection to validate fast automatic redundant bus failover function before re-enabling automatic DCS closed-loop process control.

FAQ

Q1: Can be hot-swapped while the controller rack remains powered?A: Yes, carries official ABB IEC hot-swap certification for standard control room environments. Only pause Profibus polling logic beforehand to avoid temporary field data loss, no full rack power isolation required.

Q2: Does this full Profibus master kit carry original OEM factory warranty?A: ABB original factory production warranty follows standard lifecycle coverage for active production hardware. All new original kits pass full in-house bench QA testing and carry a 12-month internal stock replacement warranty, limited to manufacturing defects detected during validation testing.

Q3: Can serve as a direct drop-in replacement for legacy CI854AK01?A: Mechanical base fit fully compatible, field wiring pinout identical. After replacement only verify full Profibus slave scan and redundancy function, no field wiring modification required; adds hot-swap and RoHS compliance as extra benefits.

Q4: What minimum CPU firmware version enables full fast dual-line redundancy and optimized DP-V1 HART support?A: PM86x controller firmware v5.3.0 or newer. Older firmware has slow bus switchover response and inefficient HART secondary variable polling.

Q5: Will Profibus slave address, baud rate and redundancy configuration persist after kit replacement?A: All bus configuration data resides in CPU non-volatile memory; no local parameter storage on module hardware. No full reconfiguration required post-swap, only complete Profibus slave scan and redundancy failover verification test.

Q6: Is compatible with legacy Advant AC450 / MasterPiece DCS racks?A: No. uses modern CEX expansion bus architecture, with zero electrical and mechanical compatibility with Advant AC450 CEX bus CI54x communication modules.

Q7: How many Profibus slave devices can one full kit connect?A: Single Profibus segment maximum 32 slaves; with Profibus repeaters cascaded, total up to 124 DP slave nodes per complete set.

Q8: What is the difference between (3BSE069449R1) and standalone board?A: is a complete factory kit including communication module + baseplate; standalone only contains the PCB board alone, baseplate must be ordered separately.