Introduction to ABB VBX01BA
VBX01BA Product Overview
The ABB VBX01BA is a high-precision digital signal processing module tailored for ABB’s Symphony Plus distributed control system (DCS), specializing in reliable acquisition and preprocessing of industrial digital signals. As a critical interface between field digital sensors/actuators and the central DCS, it features 32 configurable digital I/O channels, supporting both PNP and NPN signal types to adapt to diverse on-site equipment. Unlike conventional signal modules, it integrates edge computing capabilities, enabling real-time logic judgment (such as pulse counting, state transition detection) at the field level, which reduces data transmission pressure to the central controller. Widely applied in steel rolling mills, water treatment plants, and pharmaceutical production lines, it ensures accurate capture of equipment on/off status, valve position signals, and sensor pulse data.

VBX01BA Technical Specifications
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Product Model: VBX01BA
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Product Type: High-precision Digital Signal Processing Module
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Series Affiliation: ABB Symphony Plus DCS Series
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Core Functions: Digital signal acquisition, pulse counting, edge detection, bus data transmission, on-site logic processing
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I/O Configuration: 32 configurable digital channels (16 inputs/16 outputs); Supports PNP/NPN switching
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Signal Performance: Input response time ≤0.05ms; Output switching time ≤0.1ms; Pulse counting range 0-10MHz
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Bus Compatibility: HN800/CW800 fieldbus; Supports hot bus connection
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Communication Interface: RS485, Ethernet; Compatible with Modbus TCP/RTU, Profibus DP protocols
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Protection Features: Channel-level short-circuit protection, reverse polarity protection, surge protection (2kV)
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Power Supply: DC 24V ±15%; Redundant input supported; Power consumption ≤22W
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Operating Environment: Temperature -30°C to +70°C; Humidity 10-90% (non-condensing); Protection rating IP65
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Mechanical Features: DIN rail mount; Dimensions 120mm×80mm×60mm (L×W×H); Weight ~0.9kg
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Certifications: CE, UL, TÜV certified; Compliant with IEC 61131-2, SIL 2 safety standards
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Special Functions: Supports on-site logic programming (IEC 61131-3); Built-in self-diagnostic and fault alarm
Recommended ABB Products
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ABB VBX01TA: Bus extender module that pairs with VBX01BA to extend digital signal transmission distance up to 2000m.
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ABB PPC905AE101 3BHE014070R0101: Symphony Plus CPU module that processes digital data collected by VBX01BA.
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ABB CI854A 3BSE022363R1: Profibus DP module that expands VBX01BA’s connectivity to fieldbus networks.
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ABB AI835 3BDH000055R1: Analog input module that complements VBX01BA for mixed-signal acquisition systems.
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ABB REF615 1MRK504153-BEN: Protection relay that uses VBX01BA’s status signals to trigger safety interlocks.
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ABB PP846 3BSE042238R1: AC 800M CPU module that integrates VBX01BA’s data into hybrid DCS systems.
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ABB PS860 3BSE008545R1: Redundant power supply that ensures stable DC 24V input for VBX01BA.
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ABB CP635H 3BSE050199R1: 15-inch HMI panel that displays VBX01BA’s signal status and fault information.
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ABB ACS580: Frequency converter whose control signals are transmitted via VBX01BA’s digital output channels.
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ABB UNITROL 1020 3BHE030579R0003: Excitation controller that connects with VBX01BA for generator status monitoring.







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