My production line is built around a Siemens S7-1200 and I need a clean, well-documented program created in TIA Portal. The project scope is straightforward: • Interfacing with sensors and actuators – every digital and analogue signal must be mapped, debounced or filtered where required, and exposed through clearly-named tags. • Sequential control processing – the machine runs through several automatic cycles; each step should be coded as a separate state with permissive checks and definable timers so I can tweak behaviour later. • Communication with other networked devices – the PLC has to exchange status bits and recipe data with an existing Profinet panel and an OPC UA server on the plant network. Acceptance criteria 1. Compilable TIA Portal project for the S7-1200 (latest V17 preferred, earlier versions acceptable if noted). 2. Commented ladder or structured-text code that matches the above functions. 3. An I/O list and brief commissioning guide so my maintenance team can load the program and verify operation without you onsite. If you are comfortable with Siemens best practices—add-in instructions, data blocks, online diagnostics—this should be a concise job. Let me know which TIA Portal version you plan to use and your lead time to deliver the first tested build.