A wave of new and revised open interoperability standards is redefining procurement, cybersecurity governance, and system integrator dynamics for mid-market manufacturers undertaking operational technology (OT) retrofit projects, as robotics adoption reaches record levels across manufacturing and logistics.
North American companies ordered 36,766 robots valued at $2.25 billion in a recent 12-month period, a 6.6% increase in unit volume and a 10.1% increase in revenue year over year, according to the Association for Advancing Automation (A3). That acceleration is forcing plant managers and operations directors-particularly at small and medium-sized manufacturers-to confront legacy infrastructure built on proprietary, closed protocols incompatible with modern robotic cells and industrial IoT (IIoT) architectures.
Background
For decades, factory floors have relied on vendor-specific communication stacks, effectively locking facilities into single-supplier ecosystems. As robotics deployments expand beyond automotive into food processing, logistics, and precision manufacturing, the inability of proprietary systems to interoperate across multi-vendor environments has become a critical operational and financial liability. More than 4.2 million industrial robots have been deployed worldwide as of 2023, with new installations continuing to grow globally across automotive, aerospace, supply chain logistics, and additive manufacturing, according to the ANSI blog.
Standards bodies have responded with a cluster of coordinated releases. The Association for Advancing Automation published ANSI/A3 R15.06-2025, the first major revision of the U.S. safety standard for industrial robots since 2012, after nearly eight years of development. The standard is a national adoption of revised international standards ISO 10218-1:2025 and ISO 10218-2:2025 and now includes more than 30 explicit safety functions, compared with only two to three in the 2012 version, according to A3 Standards Manager Maren Roush. Critically for integrators, the updated standard places safety evaluation at the system level-accounting for interactions among robots, vision systems, programmable logic controllers (PLCs), and human operators-rather than assessing individual devices in isolation.
Separately, open communication protocols OPC UA (Open Platform Communications Unified Architecture) and MQTT (Message Queuing Telemetry Transport) have emerged as the de facto interoperability backbone for brownfield OT retrofit projects. OPC UA standardizes data from robots, lasers, and vision systems, capturing context such as lot codes, process parameters, and equipment IDs in a structured, secure format, according to automation integrator Andrews Cooper. MQTT with the Sparkplug B extension-an open standard maintained by the Eclipse Foundation-then transports that structured data to manufacturing execution systems (MES) or cloud analytics platforms. This hybrid architecture enables mid-market plants to integrate legacy PLCs and new robotic cells without custom protocol converters or full line replacements.
Details
The open-standards shift carries direct implications for procurement strategy. Proprietary extensions that block real compatibility can force users back into a single-vendor ecosystem, disrupting universal connectivity across the value chain, according to industrial automation analysts at Hicron Software. Manufacturers adopting OPC UA companion specifications-which define standardized information models for specific device types, including robotics-gain the ability to source robot controllers, sensors, and SCADA systems from competing vendors without incurring bespoke integration costs at each project phase. The OPC UA for Robotics companion specification ensures that any compliant robot controller exposes position, speed, and status information in the same standardized way, regardless of manufacturer.
Cybersecurity risk has become an equally decisive factor. According to the IBM X-Force 2026 Threat Intelligence Index, manufacturing was the most targeted industry for five consecutive years, accounting for 27.7% of incidents across critical sectors. Brownfield OT retrofit projects that open previously isolated ICS networks to IIoT connectivity directly expand the attack surface. The Fortinet 2025 State of OT and Cybersecurity Report found that 50% of organizations still experienced one or more cybersecurity intrusions impacting OT systems. The ISA/IEC 62443 standard-which defines security levels, zones, and conduits for industrial automation and control systems-has emerged as the primary framework guiding system integrators through compliant OT retrofit architecture.
On the regulatory front, enforcement timelines are tightening. The EU's NIS2 Directive, which took effect in October 2024, expands mandatory cybersecurity requirements to cover manufacturing, energy, and water utilities, with stricter incident reporting and governance obligations. The EU Cyber Resilience Act further mandates security-by-design for OT hardware and software, including continuous patch obligations across product lifespans and accountability for supply chain security. According to the Fortinet 2025 State of OT and Cybersecurity Report, 52% of organizations now place OT security under the CISO, up from 16% in 2022. For system integrators operating as trusted third parties in OT environments, that governance shift translates to new vetting requirements and heightened contractual liability.
Outlook
Aligning with open-standards ecosystems is shifting from a differentiator to a baseline procurement requirement for vendors supplying mid-market manufacturers. ANSI/A3 R15.06-2025 clarified that functional safety requirements now apply across the entire robotic ecosystem, providing clearer guidance, better classifications, and a safety roadmap for the intelligent automation era, according to A3 Director of Standards Development Carole Franklin. As ISA/IEC 62443 alignment becomes embedded in NIS2 and Cyber Resilience Act compliance audits, system integrators unable to demonstrate standards-conformant OT architectures face growing exclusion from competitive procurement processes. Vendors that have yet to publish OPC UA companion specification support or ISA/IEC 62443 certification roadmaps should anticipate accelerating pressure from both plant operators and insurers as robotics density on factory floors continues to rise.
