ABB TU890 3BSC690075R1 Communication interface unit module

ABB TU890 3BSC690075R1 Communication interface unit module

Specific Parameters

• Electrical ParametersCommunication Interfaces: 2 PROFIBUS DP interfaces (RS485), 1 internal communication bus interfaceCommunication Protocols: Supports PROFIBUS DP V1/V2, ABB AC 800M system bus protocolData Rate: Configurable PROFIBUS DP rate (9.6kbps-12Mbps), internal bus rate 100MbpsConnection Capacity: Single unit can manage up to 8 I/O racks, supporting ≥64 I/O modulesPower Supply Voltage: 24V DC ±20%, supporting dual-channel redundant power supplyPower Consumption: Typical 5W, maximum 7WElectrical Isolation: 2.5kVrms isolation between communication interface and power supply, compliant with IEC 61010-1 standardDiagnostic Output: 1 fault alarm relay contact (SPDT, 250V AC/30V DC, 5A)
• Environmental ParametersOperating Temperature: -40℃ to 70℃ (non-condensing environment, compliant with IEC 60068-2-1/2 standard)Storage Temperature: -40℃ to 85℃Relative Humidity: 5% to 95% (non-condensing, compliant with IEC 60068-2-3 standard)Protection Rating: IP20 (unit itself, compliant with IEC 60529 standard)Anti-interference Performance: Compliant with IEC 61326-1 standard, common-mode interference immunity ≥100dB, differential-mode interference immunity ≥60dBVibration Resistance: 10-500Hz frequency range, 1g acceleration (sine wave), 30 minutes per axisShock Resistance: 15g acceleration (11ms duration), compliant with IEC 60068-2-27 standard
• Mechanical ParametersOverall Dimensions: 100mm×160mm×35mm (L×W×H, compatible with AC 800M I/O rack installation)Housing Material: Cold-rolled steel plate with anti-static coating, featuring RFI shieldingWeight: Approximately 400gMounting Method: 35mm standard DIN rail mounting or AC 800M dedicated I/O rack slot mountingStatus Indication: 4 LED indicators (Power 1, Power 2, Communication 1, Communication 2, Fault)

Product Performance

Strong communication real-time performance: The maximum 12Mbps PROFIBUS DP rate combined with 100Mbps internal bus ensures data transmission latency ≤1ms, meeting the high-speed interaction needs of control commands and I/O data in industrial processes.

Outstanding redundancy reliability: Dual-channel redundant power supply and dual PROFIBUS DP interface design enable self-healing time ≤100ms when the communication link fails, ensuring uninterrupted communication between the control layer and I/O layer, and meeting the high availability requirements of DCS systems.

Excellent management capability: A single unit can cover 8 I/O racks and more than 64 I/O modules, reducing the number of communication nodes, simplifying system wiring and configuration, and lowering overall deployment costs.

Comprehensive diagnostic functions: Real-time monitoring of communication rate, bus load, and power status; triggers an alarm and uploads diagnostic information within 50ms after a fault occurs; cooperates with LED indicators to quickly locate fault types (power/communication).

Wide compatibility: Seamlessly adapts to AC 800M controllers and the full range of I/O modules such as AI895, AO890, and DI890; supports access to third-party PROFIBUS DP slave devices without additional protocol conversion modules.