Industrial PLC and PAC Solutions
Programmable Logic Controllers (PLCs) and Process Automation Controllers (PACs) are the cornerstone of modern industrial automation, providing the flexibility and precision needed to manage complex systems. At Relevant Industrial, we offer PLCs and PACs that support multiple programming languages as defined by IEC 61131-3, including Ladder Diagram (LD), Sequential Function Charts (SFC), Function Block Diagram (FBD), Structured Text (ST), and Instruction List (IL).
Our solutions include advanced Modular I/O Systems that allow seamless integration and scalability. Whether you’re controlling an assembly line or managing a large-scale industrial process, these controllers provide the reliability and performance necessary for efficient operations.
By offering tailored solutions backed by in-house expertise and partnerships with leading manufacturers, we ensure that your PLC and PAC systems are optimized for your specific applications. From initial selection to implementation and maintenance, we provide end-to-end support for enhanced productivity and system reliability.
Applications of PLCs & PACs
Food & Beverage
Automation controllers ensure precision in batching, mixing, and packaging processes while maintaining compliance with hygiene and safety regulations.
Water & Wastewater Treatment
PLCs and PACs optimize pump control, monitor water quality, ensure compliance with environmental standards, improving the efficiency of treatment plants.
Power Generation
PLCs and PACs are used to monitor turbines, generators, and grid connections, ensuring optimal performance and reliable energy distribution.
Manufacturing
PLCs and PACs control assembly lines, robotic systems, and machinery, ensuring seamless production and operational efficiency. Modular I/O systems allow for easy scalability as production demands grow.
Oil & Gas
These controllers manage complex processes such as drilling, refining, and pipeline operations, providing real-time monitoring and ensuring safety in high-demand environments.
Tailored PLC & PAC Solutions
At Relevant Industrial, we provide customized solutions for Programmable Logic Controllers (PLCs), Programmable Automation Controllers (PACs), and Modular I/O Systems to meet the specific needs of your industry. Whether you need a standalone solution or an integrated automation system, our team of experts works closely with you to ensure seamless design, fabrication, implementation and long-term support.
Contact us today to discover how our PLC and PAC solutions can enhance your automation capabilities and drive operational excellence.

Schneider PLC & PAC Systems
Schneider Electric Modicon offers a full line of innovative PLC’s and PAC’s. Modicon, known for innovation, introduced the first PLC in 1968 and launched the first PAC in 1996. They continue to lead the way with the first web-embedded PAC, the first all in one PAC and the first ePAC. The Modicon M171 and M172 are used for optimizing HVAC and pumping applications. The M221 is for small to medium machine control and the M340 PAC is for medium process automation. The M241 and M251 are for advanced machine automation and the M580 ePAC is used for medium to large process automation. Schneider has a wide array of I/O and software options.

Honeywell PAC & PLC
Honeywell offers the HC900 as both a PAC and a SIL2 safety system. For PLC’s, Honeywell provides MasterLogic and ControlEdge.

Red Lion PLC
