S7-1200 SM1222 Digital Outputs

SM1222 digital output modules are used when the control narrative is still correct but the actuator count has outgrown the original S7-1200 configuration. The family is most useful in pragmatic expansion work where the main question is how to add switching capacity without changing the controller platform. Use this series page to narrow output-module choices around channel count, load expectations, and panel planning. Good selection here comes from matching real actuator behavior, not from treating every digital output card as interchangeable. S7-1200 SM1222 Digital Outputs currently indexes 2 model entries in this seed. Use that list as a decision queue, not as proof that every order code is equivalent for your application.