INDUSTRIAL AUTOMATION NEWS Planning Ahead for the S7-1200 SM 1223 I/O Lifecycle As industrial plants continue to maintain long-running SIMATIC S7-1200 installations, spare-part planning is becoming increasingly important. The Siemens 6ES7223-1BH32-0XB0 remains a compact digital I/O option for S7-1200 applications, while its published lifecycle timeline makes advance replacement planning esp...