ABB PPC902AE101 3BHE010751R0101
ABB PPC902AE101 3BHE010751R0101
ABB PPC902AE101 3BHE010751R0101
ABB PPC902AE101 3BHE010751R0101
ABB PPC902AE101 3BHE010751R0101

ABB PPC902AE101 | Industrial DCS Process Control Computer for Symphony Systems

  • Brand: ABB
  • Model: PPC902AE101 3BHE010751R0101
  • Product Type: Process Control Processor
  • Series: Symphony Harmony
  • Core Function: Executes control logic, manages I/O data exchange, and handles communication in Symphony Harmony DCS; supports redundant configuration for high availability.
  • Key Specs: PowerPC processor, redundant active/standby support, -25°C to +60°C operating temperature.
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Part number: ABB PPC902AE101
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Description

PPC902AE101 3BHE010751R0101: Product Overview
The PPC902AE101 3BHE010751R0101 is a process control processor within ABB’s Symphony Harmony distributed control system (DCS) family, designed for medium- to large-scale industrial automation applications. Its role is to serve as the central computational unit in rack-mounted DCS architectures, positioned to execute user-defined control strategies, process data from distributed I/O modules, and manage communication with field devices, peer controllers, and supervisory systems. In continuous process industries—such as chemical manufacturing, power generation, and oil refining—it ensures precise regulation of temperature, pressure, flow, and level by running deterministic control logic.
Functionally, the processor handles cyclic tasks (real-time I/O updates, PID loops) and acyclic tasks (diagnostics, configuration changes, SCADA integration). It leverages the Symphony Harmony platform’s modular architecture, which supports redundant active/standby configurations, compatibility with ABB Control Builder M engineering software, and native integration with S800 I/O modules. Benefits include enhanced system availability, simplified scalability through plug-and-play components, and reduced engineering effort via reusable control libraries aligned with IEC 61131-3 standards.

ABB PPC902AE101 3BHE010751R0101

ABB PPC902AE101 3BHE010751R0101

PPC902AE101 3BHE010751R0101: Technical Specifications
  • Model Number: PPC902AE101 3BHE010751R0101
  • Manufacturer: ABB
  • Product Type: Process Control Processor
  • Processor: PowerPC 750, 800 MHz
  • Memory: 256MB RAM, 1GB Flash (user/application storage)
  • Communication Protocols: Ethernet/IP, Profibus DP, Modbus TCP, IEC 61850 (optional)
  • Redundancy Support: Active/standby (hot standby), automatic failover ≤100ms
  • Operating Temperature: -25°C to +60°C
  • Humidity Range: 5% to 95% non-condensing
  • Power Supply: 24V DC (18-32V DC range, redundant inputs supported)
  • Power Consumption: 12W (typical, single processor)
  • I/O Capacity: Up to 32,000 I/O points (via Symphony Harmony I/O modules)
  • Dimensions: 245mm x 135mm x 115mm (width x height x depth, fits Symphony rack)
  • Weight: 1.0kg
  • Certifications: CE, UL, cULus, ATEX (Zone 2), RoHS
Core Features & Customer Value​
Redundant architecture for continuous operation: The processor supports active/standby configuration with automatic failover in ≤100ms. For customers in industries like chemical manufacturing, where unplanned shutdowns risk reactor instability or product loss, this eliminates single-point controller failures. The standby unit continuously mirrors active unit data, ensuring seamless transition during faults.
Deterministic control performance: The 800 MHz PowerPC processor and 256MB RAM enable execution of complex logic (e.g., multivariable cascade control, batch sequencing) without scan time overruns. Engineers can implement advanced algorithms for distillation column optimization or turbine governor control, maintaining precision even with 10,000+ I/O points.
Flexible communication integration: Native support for Ethernet/IP, Profibus DP, and Modbus TCP allows direct connection to ABB S800 I/O, third-party PLCs (e.g., Siemens S7-1500), and SCADA systems. This avoids protocol converters, reducing wiring complexity and integration costs. For example, in a water treatment plant, it can poll 50+ remote sensors via Profibus DP while transmitting data to a central SCADA via Ethernet/IP.
Engineering efficiency via Control Builder M: Compatibility with ABB’s engineering software streamlines programming, debugging, and commissioning. Reusable function blocks (e.g., motor starter, valve interlock) cut development time by 20-30%, while online monitoring tools aid real-time troubleshooting of control loops.

ABB PPC902AE101 3BHE010751R0101

ABB PPC902AE101 3BHE010751R0101

Typical Applications​
In a petroleum refinery’s catalytic reformer, the processor serves as the primary controller, managing 2,000+ I/O points (reactor temperature, hydrogen flow, product yield) via Symphony Harmony I/O modules. Its redundant configuration ensures uninterrupted control during catalyst regeneration, while Ethernet/IP transmits data to the plant’s 800xA DCS for real-time optimization.
At a power plant’s boiler-turbine island, it executes coordinated control of feedwater pumps and steam valves, using PID loops to maintain drum level and turbine speed. The -25°C cold-start capability supports outdoor installations, and Modbus TCP integrates with the plant’s historian for emissions reporting.
In a pharmaceutical batch reactor, the processor runs sequential logic for ingredient dosing and temperature ramping, storing recipe data in its 1GB Flash. Hot-swappable design allows maintenance during planned turnarounds without halting production batches.

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