| | | | |

New Emerson Safety Controller Streamlines Integration, Offers Superior Safety and Functionality

December 9, 2025

New Emerson Safety Controller Streamlines Integration, Offers Superior Safety and Functionality
Emerson’s PACSystems™ RX3i CPS400 Safety Controller streamlines the creation of SIL2 designs with pre-built, certified blocks and templates readily integrated with sophisticated automation solutions.

PACSystems Safety Controller enables SIL2 designs with pre-built templates for reliable performance in demanding, safety-critical applications

Emerson has announced the new PACSystems™ RX3i CPS400 Safety Controller, designed to enable Safety Integrity Level 2 (SIL2) strategies for infrastructure, fire and gas, burner management systems, and other emergency shutdown systems. The PACSystems Safety Controller is a compact, high-performance solution with robust security measures and a scalable architecture with 2,000 available I/O points, ideal for complex projects with evolving requirements.

As project automation becomes more sophisticated and data-driven, OEMs and systems integrators need a range of more powerful hardware and software products to ensure compliance with standards and regulations for protecting workers, whether onboard a single piece of equipment or distributed throughout a much larger process.

A large 64-megabyte memory capacity and scalable digital architecture enables the PACSystems Safety Controller to support a diverse range of mission-critical applications. Using built-in industrial communications protocols, including OPC UA, Ethernet Global Data (EGD), and Modbus TCP, the RX3i CPS400 controller is ready to connect peer-to-peer and with higher level hosts, providing complete operational visibility.

As a secure-by-design solution incorporating Secure Boot® and the Trusted Platform Module (TPM) standard, the new controller delivers rigorous data integrity and protection against potential threats. Safety-certified function blocks and pre-configured templates simplify overall system certification in accordance with the IEC 61511 standard.

Available in simplex or redundant controller configurations, the RX3i CPS400 controller can perform all safety data messaging with duplex communications using the black channel principle over EGD, allowing standardized and reliable connectivity with Emerson’s PACSystems VersaMax™ SafetyNet I/O system. The platform is IEC 61508 safety-certified, providing a capable SIL2 simplified solution to help designers build appropriate protection schemes.

Developers can configure the new controller using familiar software tools employed for programmable logic controllers (PLC), operator interfaces, and other automation elements, namely Emerson’s PAC Machine Edition development environment. As a unified tool chain with a user-friendly interface, the PAC Machine Edition suite streamlines development efforts so users can easily create complete and integrated automation, visualization and safety solutions for rapid startups and maximum operating efficiency.

“Adding the PACSystems RX3i CPS400 Safety Controller to our extensive portfolio of safety products, we continue to deliver tools users need to create compliant safety systems that are easily developed and integrated into sophisticated automation solutions,” said Daniel Smith, senior product manager with Emerson’s discrete automation business.

More Information

For more information, please visit https://www.emerson.com/en-us/catalog/emerson-ic695cps400

https://www.emerson.com/en-us/news/2025/new-emerson-safety-controller-streamlines-integration-offers-superior-safety-and-functionality

Related Product

Emerson’s Next-Generation of Industrial PCs Provide a Powerful and Rugged Computing Platform for AI-Enabled Automation

New PACSystems IPCs from Emerson combine latest generation of industrial-rated processors with optimized cooling and pre-loaded software to simplify advanced computing and integration.

Related Articles

Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More

Latest Articles

  • How Motor Pole Count Influences Speed and Torque in Servo Motors

    December 9, 2025 Servo motors deliver precise, repeatable motion, and their performance is shaped by how torque, speed, and stability interact under load. One structural element that defines this behavior is motor pole count. Pole count determines how the magnetic field rotates inside the motor and how much torque the motor can produce at different… Read More…

  • Digital Revolution in Transformer Substations

    December 9, 2025 The energy sector is under a lot of pressure. German distribution grid operators need to get their infrastructure ready for the energy transition and fast. By 2030, some 80 percent of electricity is to be generated from renewable sources. A pilot project at naturenergie netze GmbH is demonstrating how transformer substations can… Read More…