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AI at the PLC — what ships, what doesn't

Five AI-on-the-PLC products, graded honestly against production.

Eighteen months after the first Industrial Copilot previews, five real products are in the field. Siemens Engineering Copilot TIA (B+), Rockwell FactoryTalk Design Studio Copilot (Incomplete), Siemens TM NPU (A-), Edge Impulse + Arduino Opta (A), Beckhoff TwinCAT CoAgent (B). A scorecard, three pre-pilot tests, and the edge retrofit I would install Monday.