Introduction to ABB VBX01TA
VBX01TA Product Overview
The ABB VBX01TA is a high-performance bus extender specifically designed for ABB’s Symphony Plus distributed control system (DCS), focusing on solving long-distance communication challenges in large-scale industrial sites. As a key link between the central controller and field devices, it extends the communication distance of HN800/CW800 fieldbuses to 2000 meters, effectively breaking the distance limitation of traditional bus systems in petrochemical plants, power stations, and metallurgical workshops. Integrating analog signal processing and digital I/O control capabilities, it supports 4-20mA current and ±10V voltage signals from sensors, with 16-bit AD conversion ensuring precise data acquisition. Its industrial-grade redundant design and IP67 protection rating enable stable operation in harsh environments with extreme temperatures (-40°C to +70°C), dust, and water splashes. Compatible with Modbus RTU, Profibus DP, and other industrial protocols, it can connect up to 30 slave devices and avoid port conflicts during multi-device concurrent reading and writing.
VBX01TA Technical Specifications
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Product Model: VBX01TA
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Product Type: High-performance Bus Extender for DCS
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Series Affiliation: ABB Symphony Plus DCS Series
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Core Functions: HN800/CW800 bus distance extension, analog/digital signal processing, multi-device communication management
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Communication Performance: Extends bus distance up to 2000m; Supports up to 30 slave devices; Resolves multi-device port conflict
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Signal Compatibility: Analog input: 4-20mA current, ±10V voltage; 16-bit AD conversion accuracy
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Communication Interface: Optical fiber, RS485; Supports Modbus RTU, Profibus DP protocols
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Protection Rating: IP67 (dustproof and waterproof)
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Operating Environment: Temperature -40°C to +70°C; Humidity 5-95% (non-condensing)
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Power Supply: DC 24V ±15%; Redundant input supported; Power consumption ≤18W
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Processing Performance: Signal response time ≤1ms; Data transmission rate up to 1Mbps
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Safety Certification: SIL 2 (TÜV certified); Complies with IEC 61508 functional safety standard
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Mechanical Features: Din rail or flange mount; Weight ~1.2kg; LED status indicators (power, communication, fault)
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Application Compatibility: Safety Instrumented System (SIS), Emergency Shutdown System (ESD), Nuclear Power Reactor Protection System
Recommended ABB Products
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ABB PPC905AE101 3BHE014070R0101: Symphony Plus CPU module that connects with VBX01TA to realize centralized control of distributed devices.
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ABB CI854A 3BSE022363R1: Profibus DP communication module that enhances VBX01TA’s compatibility with fieldbus networks.
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ABB AI835 3BDH000055R1: High-precision analog input module that cooperates with VBX01TA to improve sensor data acquisition accuracy.
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ABB PP846 3BSE042238R1: AC 800M CPU module that integrates VBX01TA’s communication data into hybrid DCS systems.
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ABB REF615 1MRK504153-BEN: Protection relay that receives fault signals transmitted by VBX01TA to trigger safety actions.
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ABB VBX01B: Pulse counter module that pairs with VBX01TA to collect and transmit high-frequency pulse signals in industrial sites.
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ABB PS860 3BSE008545R1: Redundant power supply module that ensures stable DC 24V input for VBX01TA.
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ABB CP635H 3BSE050199R1: 15-inch HMI panel that displays VBX01TA’s communication status and fault information.
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ABB ACS580: Frequency converter whose operating data is transmitted to the controller via VBX01TA’s bus extension function.
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ABB UNITROL 1020 3BHE030579R0003: Excitation controller that connects with VBX01TA to realize remote monitoring in power plant systems.
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