Equipment builders continually seek ways to enhance equipment performance and flexibility while reducing system size and complexity. Emerson’s PACSystems™ controllers, combined with an extensive portfolio of I/O options, deliver fast, easy-to-configure connectivity that enables scalable machine automation and highly distributed, modular machine designs. The result is high-performance automation engineered for the Industrial Internet.

High Performance

Analyze and optimize even the most complex applications directly at the source. The latest RX3i Controllers feature multiple processing cores, enabling higher throughput and greater application capability. Large working memory in every high-speed RX3i controller allows more data to be stored and accessed faster than ever before.
Whether transferring consistent gigabit-speed data across the backplane or communicating over fiber across kilometers, RX3i controllers deliver premier performance, fast data handling, and reliable operation across multi-disciplined control systems.

PROFINET® Advantage

PROFINET I/O solutions provide significant productivity and performance benefits across a wide range of industrial applications. RX3i controllers connect seamlessly to Emerson’s purpose-built I/O families via PROFINET, delivering advanced flexibility, deterministic performance, and simplified integration for modern control architectures.

Flexibility and Scalability

PACSystems offers a comprehensive range of I/O, communications, and specialty modules to support both process and discrete control applications. It provides one of the industry’s best migration paths, allowing Series 90-30 modules to be reused directly in the PACSystems backplane—reducing rewiring, minimizing downtime, and saving panel space.
In addition, applications migrate easily to PAC Machine Edition (PME), enabling rapid configuration and startup in minutes.

Secure by Design

Security is embedded at every level of RX3i controller design. Defense-in-depth architectures protect critical assets from evolving cyber threats using technologies such as Trusted Platform Modules (TPM) and digitally signed firmware.
RX3i controllers are engineered to defend against man-in-the-middle and denial-of-service attacks, as validated by Achilles Level 2 certification. Encrypted communications are enabled through pre-installed, pre-licensed OPC UA, while a comprehensive suite of cybersecurity tools helps prevent unauthorized access and updates—ensuring long-term system integrity.