1. General Information

• Model: CI855

• Order Number: 3BSE018106R1

• Product Type: MB300 (MasterBus 300) communication interface module

• Applicable System: ABB AC 800M / System 800xA control systems

• Baseplate: TP853 (dual RJ45 ports, DIN rail mount)

• Manufacturer: ABB

• Country of Origin: Sweden

2. Communication Specifications

• Protocol: ABB MasterBus 300 (MB300)

• Data Rate: 10 Mbps

• Throughput: Up to 200 data sets per second

• Ports: 2 × RJ45 (8‑pin), electrical isolation, network redundancy

• Controller Bus: CEX bus (AC 800M)

• Max Nodes on CEX: 12 units

• Communication Mode: Peer‑to‑peer, master‑slave

3. Electrical Characteristics

• Power Supply: 24 V DC (18–36 V DC)

• Current Consumption: 150 mA (typical)

• Protection: Overload, short‑circuit, overvoltage

• LED Indicators: Power, Run, Bus Activity, Fault

4. Mechanical & Environmental

• Dimensions (W×H×D): 59 × 185 × 127.5 mm (2.3 × 7.3 × 5.0 in)

• Weight (with baseplate): 700 g (1.5 lbs)

• Protection Rating: IP20 (front)

• Operating Temperature: +5 °C to +55 °C (+41 °F to +131 °F)

• Storage Temperature: -40 °C to +70 °C (-40 °F to +158 °F)

• Humidity: 5%–95% RH, non‑condensing

• Vibration: 10–500 Hz, ≤2 g (IEC 60068‑2‑6)

• Shock: 15 g, 11 ms half‑sine (IEC 60068‑2‑27)

5. Key Features

• MB300 Network Redundancy: Dual‑port redundancy for high availability

• Clock Synchronization: Precision time sync across MB300 network

• DataSet Communication: Efficient, high‑speed data exchange

• Hot Swap: Replace module without system shutdown

• Peer‑to‑Peer Communication: Connect AC 800M (800xA) with legacy MB300 controllers (AC410, AC450, MasterPiece 200/1)

6. Certifications & Compliance

• CE Marking: Yes

• Marine Approvals: BV, DNV‑GL, LR

• RoHS: Compliant (2011/65/EU)

• WEEE: Compliant (2012/19/EU)

7. Applications

• Interconnection of new System 800xA (AC 800M) and existing Advant OCS/MB300 systems

• Process automation: power, pulp & paper, petrochemical, metals

• High‑availability control networks with redundancy