Safety Programmable Logic Controller (PLC) Remote Input/Output (I/O) Market Report 2026

The safety plc remote i/o market size has grown strongly in recent years. It will grow from $2.68 billion in 2025 to $2.92 billion in 2026 at a compound annual growth rate (CAGR) of 8.7%. The growth in the historic period can be attributed to rising industrial automation, growing demand for distributed safety systems, increasing workplace safety concerns, expansion of oil and gas and energy sectors, and growing adoption of robotics and machine safety.

The safety plc remote i/o market size is expected to see strong growth in the next few years. It will grow to $4.03 billion in 2030 at a compound annual growth rate (CAGR) of 8.4%. The growth in the forecast period can be attributed to increasing integration with IIoT and industry 4.0, growing focus on predictive and condition-based maintenance, rising demand for redundant and fault-tolerant systems, expansion of safety adoption in emerging markets and SMEs, growing subscription-based support and service models. Major trends in the forecast period include integration with cloud-based monitoring and remote diagnostics, adoption of high-speed and deterministic safety protocols, advancements in cyber-secure safety systems, development of energy-efficient and compact safety modules, and research and development in digital twins and simulation platforms.

The implementation of strict safety regulations across process industries is expected to drive the growth of the safety programmable logic controller (PLC) remote input/output (I/O) market in the coming years. Strict safety regulations refer to mandatory rules and enforceable standards that require industrial facilities to deploy certified systems capable of preventing hazardous failures. The enforcement of safety regulations in process industries is increasing as authorities intensify efforts to prevent industrial accidents and strengthen worker protection. Safety programmable logic controller (PLC) remote input/output (I/O) systems address these requirements through certified modules that perform safety-critical control functions and ensure compliance across widely distributed field devices. For instance, in September 2023, according to the Occupational Safety and Health Administration, a US-based federal agency, OSHA carried out 34,221 inspections in FY 2023, including targeted inspections in high-risk industries, indicating stronger enforcement compared to previous years. Therefore, the implementation of strict safety regulations across process industries is contributing to the growth of the safety programmable logic controller (PLC) remote input/output (I/O) market.

The increasing demand for industrial automation is also expected to support the growth of the safety programmable logic controller (PLC) remote input/output (I/O) market going forward. Industrial automation refers to the use of control systems, machinery, software, and robotics to operate and monitor industrial processes with minimal human intervention. The demand for industrial automation is rising due to the need to enhance operational efficiency as organizations work to lower costs, reduce errors, and improve productivity. Safety programmable logic controller (PLC) remote input/output (I/O) systems support industrial automation by enabling secure, flexible, and centralized control of distributed machinery and processes. They enhance operational efficiency and safety by enabling real-time monitoring, reducing wiring complexity, and ensuring adherence to industrial safety standards. For instance, in September 2025, according to the International Federation of Robotics, a Germany-based non-profit organization, there were 4,664,000 robotic units operating in factories worldwide in 2024, representing a 9% increase from 4,281,585 units in 2023. Therefore, the increasing demand for industrial automation is contributing to the expansion of the safety programmable logic controller (PLC) remote input/output (I/O) market.

Major companies operating in the safety programmable logic controller (PLC) remote input/output (I/O) market are focusing on developing advanced products, such as safety I/O modules with integrated communication protocols, to enhance efficiency, improve safety, and reduce manual workload and risk in industrial operations. Safety I/O modules are industrial control components designed to manage critical safety signals and are certified to meet stringent international safety standards. For instance, in September 2024, Belden Inc., a US-based provider of network infrastructure and digitization solutions, introduced the new LioN-Safety I/O Modules. These rugged, compact modules support PROFIsafe and CIP Safety protocols, enabling seamless integration of safety and non-safety signals within a single PLC environment. They feature standardized device description files for easy integration into PLC engineering tools and are TÜV Rheinland certified up to safety integrity level (SIL) 3, category 4, and performance level e (PLe), ensuring functional safety in highly automated applications. They also incorporate a design that enables the transmission of safety-critical data and diagnostics over existing networks, helping manufacturers save time, resources, and control panel space.

Major companies operating in the safety programmable logic controller (plc) remote input/output (i/o) market are Siemens AG, Mitsubishi Electric Corporation, Schneider Electric SE, ABB Ltd., Eaton Corporation plc, Rockwell Automation Inc., OMRON Corporation, Yokogawa Electric Corporation, Phoenix Contact GmbH & Co. KG, Advantech Co. Ltd., SICK AG, Beckhoff Automation GmbH & Co. KG, IFM Electronic GmbH, Turck Holding GmbH, Pepperl+Fuchs SE, Wieland Electric GmbH, Pilz GmbH & Co. KG, HMS Industrial Networks AB, WAGO GmbH & Co. KG, Bihl+Wiedemann GmbH.

North America was the largest region in the safety plc remote i/o market in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the safety programmable logic controller (plc) remote input/output (i/o) market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the safety programmable logic controller (plc) remote input/output (i/o) market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

Tariffs have impacted the safety plc remote i/o market by increasing costs of electronic components, communication modules, and industrial enclosures. High safety level systems and distributed i/o segments are most affected, particularly in asia-pacific manufacturing regions. These pressures have slowed some capital investments. Tariffs are encouraging regional manufacturing and localization of industrial automation components.

Safety programmable logic controller (PLC) remote input/output (I/O) refers to distributed I/O modules designed to operate with safety-certified programmable logic controllers to perform safety-related control functions. These modules gather signals from field devices and transmit them to the central safety PLC through secure, deterministic communication networks. They improve system reliability by decentralizing control, reducing wiring complexity, and ensuring fail-safe responses in industrial safety applications.

The main types of safety PLC remote I/O include modular remote input/output, compact remote input/output, and distributed remote input/output systems. Modular remote input/output systems offer flexible and scalable solutions for industrial automation, enabling easy integration into existing control architectures. These devices operate using communication protocols such as Process Field Bus (PROFIBUS), Process Field Network (PROFINET), Ethernet Industrial Protocol (Ethernet/IP), Modular Bus (Modbus), and others. They support various safety integrity levels, including Safety Integrity Level 1 for basic safety systems, Safety Integrity Level 2 for medium-risk industrial safety systems, Safety Integrity Level 3 for high-risk safety environments, and Safety Integrity Level 4 for extreme-risk and critical infrastructure applications. These systems are deployed across multiple industry verticals, including automotive, oil and gas, chemicals, food and beverage, pharmaceuticals, energy and power, water and wastewater, and others.

The safety programmable logic controller (PLC) remote input/output (I/O) market consists of revenues earned by entities by providing services such as commissioning, maintenance, remote monitoring, technical support, training, calibration, and consulting. The market value includes the value of related goods sold by the service provider or included within the service offering. The safety plc remote i/o market includes sales of communication gateways, fieldbus adapters, power supply units, industrial enclosures, wiring harnesses, and terminal blocks. Values in this market are ‘factory gate’ values, that is, the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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