PP846A | 3BSE042238R2 | Process Controller Module

Technical Specifications

Key Features and Advantages

The PP846A delivers high-performance process control with dual-redundant architecture, achieving 99.999% availability in critical applications. Its real-time operating system ensures deterministic response times ≤10ms for complex control loops.

Advanced integration: Supports seamless communication with ABB 800xA DCS and third-party PLCs via PROFIBUS and OPC UA. The module’s hot-swappable design allows component replacement without process interruption, minimizing downtime.

Robust design: Conformal coating and IP20-rated enclosure protect against dust and humidity. Built-in diagnostics monitor CPU load, memory usage, and network health for predictive maintenance.

Application Areas

In power plants, the PP846A manages turbine control systems and boiler automation, ensuring IEC 61508 SIL 2 compliance. Its dual-core processing enables fast response for grid synchronization tasks.

Water treatment facilities utilize this module for SCADA-controlled filtration and chemical dosing systems. The wide voltage input range (19-30V DC) ensures stable operation during power fluctuations.

Oil & gas pipelines leverage its PROFIBUS integration for remote monitoring of compressor stations and leak detection systems, even in extreme temperatures.

Related Products

PM802F: Redundant processor module
CI854A: PROFIBUS communication interface
SD822: System 800xA integration module
TP857: Touch panel HMI
SA811F: Safety-certified I/O module

Installation and Maintenance

Installation preparation: Use shielded CAT6 cables for network connections. Maintain 50mm clearance around the PP846A for airflow. Ground the DIN rail to ≤1Ω resistance using 4mm² copper wire.

Maintenance recommendations: Update firmware via ABB Control Builder M software. Perform annual memory battery check (CR2032). Clean ventilation slots quarterly with dry compressed air.

Product Assurance

The PP846A undergoes 1000-hour burn-in testing and complies with IEC 60068-2 environmental standards. ABB provides 24/7 global support with guaranteed 8-hour response for critical failures. The 3-year warranty includes firmware updates and configuration backup services.