Introduction to ABB PCD235B101 3BHE032025R0101
The ABB PCD235B101 (order number: 3BHE032025R0101) is a high-reliability distributed I/O module, serving as the “field signal gateway” in large-scale industrial automation systems. As a key product in ABB’s PCD series for process control, it specializes in collecting and conditioning analog signals from field sensors (such as temperature, pressure, and flow transmitters) and transmitting standardized data to upper-level controllers. This module is widely applied in power generation (boiler parameter monitoring), petrochemicals (reactor process control), and industrial robotics (sensor data acquisition for ABB robots) . Its robust design features 1500Vrms galvanic isolation between channels, effectively resisting electromagnetic interference from high-power equipment like frequency converters . The compact modular structure supports hot-swapping and seamless integration with ABB’s AC 800M DCS platform, while LED status indicators for each channel simplify on-site fault diagnosis, significantly enhancing the stability of distributed control systems.
3BHE032025R0101 Key Technical Specifications
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Device Type: Distributed analog input I/O module for industrial process control
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Input Configuration: 16-channel analog input; supports 4-20mA DC current signals
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Measurement Accuracy: ±0.05% full scale (FS); ensures precise capture of micro-signal changes
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Resolution: 24-bit AD conversion; compatible with high-precision sensors
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Sampling Rate: 50 samples per second per channel; total system sampling rate up to 800 S/s
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Power Supply: 24V DC (nominal); input range 18-36V DC; typical current consumption 120mA
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Communication Interface: Integrates with ABB CEX bus; supports real-time data transmission to AC 800M controllers
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Isolation Performance: 1500Vrms between channels; 1000Vrms between I/O and system
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Operating Environment: Temperature -20°C to +70°C; humidity 5-95% (non-condensing)
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Physical Specifications: 124mm × 74mm × 44mm; weight ~0.35kg; 35mm DIN rail mounting
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Protection Features: Overvoltage protection (up to 30V DC); short-circuit protection; EMC compliant with IEC 61000-4
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Certifications: CE, RoHS compliant; meets IEC 61131-2 industrial control standards
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