Description
| Product model | PCD530A102, also known as 3BHE041343R0102 |
| Manufacturer | ABB |
| Product category | Digital Input Module |
| Control platform | AC 800M DCS |
| Number of channels | 32 digital inputs |
| Input voltage | 24 VDC (nominal), range 18–30 VDC |
| Input type | Isolated, sink or source configurable |
| Isolation voltage | 500 VAC between channels and backplane |
| Response time | ≤ 1 ms per channel |
| Bus interface | CI854 or CI853 communication interface (Profibus/Modbus) |
| Mounting | Standard 35 mm DIN rail, horizontal orientation |
| Operating temperature | -25°C to +60°C |
| Storage temperature | -40°C to +85°C |
| Certifications | CE, UL, CSA, ATEX (when used in approved cabinets) |
Product introduction
The ABB PCD530A102 (product code 3BHE041343R0102) is a high-performance, 32-channel digital input module designed for integration into ABB’s AC 800M Distributed Control System (DCS), a leading automation platform in power generation, oil & gas, and process industries. As a critical component of the I/O subsystem, the ABB PCD530A102 reliably captures discrete field signals from sensors, switches, and actuators, converting them into process data for real-time control and monitoring.
Engineered for mission-critical applications, this module provides galvanic isolation between field circuits and the control system, protecting sensitive electronics from voltage spikes, ground loops, and electrical noise. It is fully compatible with ABB’s ControlBuilder M engineering software, allowing seamless configuration, diagnostics, and integration into larger automation architectures. The 3BHE041343R0102 is widely used in turbine control, boiler management, emergency shutdown (ESD) systems, and pump sequencing, where fast, accurate signal acquisition is essential for safety and efficiency.

ABB PCD530A102 3BHE041343R0102
Core advantages and technical highlights
High channel density and flexibility
The ABB PCD530A102 offers 32 isolated digital inputs in a compact form factor, maximizing I/O density and minimizing cabinet space. Each input can be individually configured for sink or source operation, accommodating a wide range of field devices and wiring practices.
Ultra-fast response and precise timing
With a response time of less than 1 millisecond per channel, the 3BHE041343R0102 ensures rapid detection of critical events such as emergency stops, limit switches, or alarm conditions. This makes it ideal for safety interlocks and high-speed sequencing applications.
Robust electrical isolation
Featuring 500 VAC isolation between field and logic circuits, the PCD530A102 protects the AC 800M controller from electrical transients and ground faults, enhancing system reliability in harsh industrial environments.
Seamless integration with AC 800M
The ABB PCD530A102 works in conjunction with CI854 or CI853 communication interfaces to provide transparent data exchange with the controller. It supports standard protocols like Profibus and Modbus, enabling easy integration into existing networks.
Wide operating temperature range
Rated from -25°C to +60°C, the 3BHE041343R0102 performs reliably in extreme conditions, including offshore platforms, desert power plants, and arctic processing facilities.
Advanced diagnostics and LED indicators
Each channel features individual LED status indicators for real-time monitoring. The module also supports diagnostic reporting via the DCS, enabling predictive maintenance and rapid fault isolation.
Typical application scenarios
The ABB PCD530A102 is extensively used in large-scale industrial automation projects where reliable signal acquisition is paramount. In combined cycle power plants, the 3BHE041343R0102 monitors turbine trip conditions, valve positions, and burner status, feeding critical data to the AC 800M safety system for fast-acting protection.
In oil refineries and petrochemical plants, the PCD530A102 is deployed in boiler control systems to track flame detectors, pressure switches, and level sensors. Its isolated inputs prevent interference from high-power equipment, ensuring stable operation during combustion control.
In water and wastewater treatment facilities, the ABB PCD530A102 monitors pump run status, tank levels, and filter clogging signals. Its 24 VDC compatibility aligns with standard field instrumentation, simplifying integration.
The 3BHE041343R0102 is also used in manufacturing and discrete automation, where it interfaces with machine guards, safety relays, and robotic cells. Its fast scan time ensures immediate response to emergency stops, enhancing operator safety.

ABB PCD530A102 3BHE041343R0102
Related model recommendations
- ABB PCD555A102 (3BHE041347R0102): 16-channel relay output module, pairs withPCD530A102 for complete I/O control.
- ABB PCD515A102 (3BHE041341R0102): 16-channel analog input module, complements3BHE041343R0102 for mixed-signal applications.
- ABB CI854 (3BSE018801R1): Communication interface for Profibus DP, essential for connectingPCD530A102 to AC 800M.
- ABB PCD531A102 (3BHE041344R0102): 32-channel digital output module, counterpart toPCD530A102 for actuator control.
- ABB PCD517A102 (3BHE041342R0102): High-density analog output module, integrates with same I/O rack as3BHE041343R0102.
- ABB AC 800M Controller (PM866AK01): Main controller that processes data fromPCD530A102 for real-time automation.
- ABB PCD532A102 (3BHE041345R0102): 64-channel digital input module, higher density option for large-scale systems.
- ABB PCD545A102 (3BHE041346R0102): RTD/thermocouple input module, often used alongsidePCD530A102 in temperature-critical processes.
Installation, commissioning and maintenance instructions
Installation preparation: Before installing the ABB PCD530A102, ensure the control cabinet is powered down and properly grounded. Mount the module on a 35 mm DIN rail, ensuring adequate ventilation and clearance. Verify that the field wiring uses shielded cables and that the 3BHE041343R0102 is connected to a stable 24 VDC power supply. Avoid routing digital input cables parallel to high-voltage lines to prevent noise coupling.
Commissioning steps: After physical installation, power up the system and confirm the PCD530A102 status LEDs indicate normal operation (green RUN light). Use ControlBuilder M to verify module recognition and configure input types (sink/source). Test each channel with simulated field signals to ensure correct data transmission to the AC 800M controller.
Maintenance suggestions: Periodically inspect the 3BHE041343R0102 for loose terminals or corrosion. Clean dust buildup with dry compressed air. Monitor diagnostic logs for intermittent faults or high error counts. Keep spare PCD530A102 units calibrated and ready for hot-swapping during outages.
