ABB PCD235B101 3BHE032025R0101
ABB PCD235B101 3BHE032025R0101
ABB PCD235B101 3BHE032025R0101
ABB PCD235B101 3BHE032025R0101
ABB PCD235B101 3BHE032025R0101

ABB 3BHE032025R0101 PCD235B101 | S800 I/O Communication Interface Module

  • Brand: ABB
  • Model: 3BHE032025R0101 PCD235B101
  • Product Type: Communication Interface Module
  • Series: S800 I/O (CI858)
  • Core Function: Provides master communication for fieldbus networks; connects controller to distributed I/O.
  • Key Specs: Supports PROFIBUS DP or FOUNDATION Fieldbus; integrates with S800 I/O stations.
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Part number: ABB 3BHE032025R0101 PCD235B101
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Description

3BHE032025R0101 PCD235B101: Product Overview
This component is a master fieldbus interface module, designated as part of ABB’s S800 I/O system. Its specific position in an automation system is to act as the communication master between a central controller, such as an AC800M, and distributed I/O stations or intelligent field devices on a fieldbus network. It is typically mounted in an S800 I/O rack, which can be located remotely from the control room, forming a node in a distributed architecture.
The core functionality involves managing all communication on the connected fieldbus network. As a master device, it polls slave devices (e/O modules, drives, transmitters) for input data, writes output data to them, and handles all protocol-specific tasks. It processes data packets for protocols like PROFIBUS DP or FOUNDATION Fieldbus, ensuring reliable and timely exchange of process variables, status information, and control commands. This offloads the central controller, allowing it to focus on core application logic.
This module belongs to the S800 I/O product family, a platform known for its modularity, high density, and robust performance in demanding industrial environments. The benefits of this platform include a significant reduction in field wiring through distributed architecture, simplified system expansion via plug-and-play modules, and a consistent engineering environment that streamlines configuration and maintenance. The hot-swappable design of the modules further enhances system availability.ABB PCD235B101 3BHE032025R0101
3BHE032025R0101 PCD235B101: Technical Specifications
  • Model Number: 3BHE032025R0101 PCD235B101
  • Manufacturer: ABB
  • Product Type: Master Fieldbus Interface Module
  • Fieldbus Protocol: PROFIBUS DP (up to 12 Mbps) or FOUNDATION Fieldbus (H1)
  • Role: Master
  • Number of Channels: 1 (single port)
  • Connector Type: 9-pin D-sub (PROFIBUS) or terminal block (FF)
  • Isolation: Optical isolation
  • Power Supply: 24 V DC (from backplane)
  • Operating Temperature: 0°C to +55°C
  • Storage Temperature: -40°C to +70°C
  • Dimensions: 45 mm (width) x 119 mm (height) x 112 mm (depth)
  • Weight: Approximately 0.3 kg
  • Certifications: CE, UL
Core Features & Customer Value​
The module’s primary feature is its role as a dedicated fieldbus master. By handling all communication tasks locally, it frees the central controller from the overhead of polling numerous I/O points. For the engineer, this means the controller’s processing power can be allocated to complex control strategies rather than routine data exchange. For the plant operator, this translates to more deterministic control and higher system performance.
Support for industry-standard protocols like PROFIBUS DP and FOUNDATION Fieldbus provides significant flexibility. This allows integration with a wide ecosystem of third-party devices and ABB’s own intelligent instruments and drives. The benefit to the customer is the ability to select best-in-class field devices without concern for communication incompatibility, protecting the investment in the automation system.
The module’s design as part of the S800 I/O system offers inherent advantages. The distributed nature of the I/O reduces the amount of copper wiring required, lowering installation costs and complexity. The modular, hot-swappable design simplifies maintenance, allowing a failed module to be replaced without shutting down the entire system. This focus on serviceability minimizes downtime and reduces the total cost of ownership.

ABB PCD235B101 3BHE032025R0101

ABB PCD235B101 3BHE032025R0101

Typical Applications​
In a power generation facility, this module is used to connect the plant’s DCS to a remote I/O station controlling the coal handling system. Via a PROFIBUS DP network, it gathers data from belt scale sensors, motor starters, and valve positions, while sending control commands to adjust conveyor speeds and discharge gates.
At a chemical processing plant, the module interfaces an AC800M controller with a distillation column’s remote I/O. It communicates with analog input modules collecting temperature and pressure readings, and with analog output modules adjusting control valve positions to maintain product purity.
In a water and wastewater treatment plant, the module is employed to connect to a network of FOUNDATION Fieldbus devices. It acquires data from pH and turbidity sensors in a neutralization tank and controls chemical dosing pumps, ensuring effluent meets discharge standards.

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