AI article
An AI Agent Programmed a Siemens S7-1500 Through an MCP Bridge — Here's the SCL and the Race Conditions It Caught
Community description: We gave an LLM agent an MCP server that drives TIA Portal via Openness, then asked it for a conveyor-sorting state machine in SCL. It added the CPU, validated the simulator, wrote the FB, and shipped 14 test cases — and refused three things it shouldn't own.
Dev.to | Oct 12, 2026 | tia-forge
Automated excerpt
Bridge: an MCP server (TiaLink) exposing TIA Portal operations over MCP — add device, create block, write SCL, compile, download, read back. Target: TIA Portal V19 with Openness, S7-PLCSIM for verification. Dual-cylinder hard interlock must be pneumatic or electrical.
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