ABB PPC902CE101 Overview
The ABB PPC902CE101 is a modular control unit designed for industrial automation and process control applications. It is commonly used in ABB Ability™ System 800xA systems as well as various DCS/PLC platforms. The following provides an overview of its main features and technical specifications:

Product Positioning
Part of ABB’s control system module series, the PPC902CE101 can serve as an analog input, digital I/O, communication, or power unit, and is compatible with both ABB and third-party control platforms.
Features a compact aluminum alloy enclosure, compliant with IP20 industrial protection standards and RoHS certification.
Core Hardware Specifications
Processor: 1.5 GHz dual-core ARM Cortex-A9
Power Supply: 24 V DC (±20%) or 200–240 V AC (optional)
Operating Temperature: –10 °C to +55 °C
Dimensions: approx. 190 mm × 139 mm × 60 mm
Weight: approx. 0.3 kg – 1.6 kg (depending on configuration)
Functions and Interfaces
Analog Inputs: Supports ±10 V, ±20 V, ±50 V, ±100 V, and ±20 mA, ±40 mA, ±100 mA, ±200 mA ranges; 16-bit resolution; ±0.05% accuracy; 1000 Hz sampling rate.
Digital I/O: 8 digital inputs and 8 digital outputs (available on specific models).
Communication: RS-485 (Modbus RTU), Ethernet (TCP/IP, UDP, HTTP, etc.), and high-speed Ethernet interfaces supporting multiple industrial protocols.
Diagnostics & Fault Localization: Built-in LED indicators and self-diagnostic functions for rapid troubleshooting.
Typical Applications
Process and machine control
Discrete manufacturing and factory automation
Motor/inverter control and energy systems
Chemical, pharmaceutical, and transportation industries for field monitoring and control
Summary
The ABB PPC902CE101 combines high-precision analog data acquisition, flexible digital I/O, and multi-protocol communication capabilities, making it ideal for automation systems that demand high reliability and real-time performance. Its modular design allows for quick field expansion or replacement, meeting the needs of both small control stations and large-scale DCS projects.