In PLC programming, FB (Function Block) and FC (Function) are two commonly used programming elements. Their design purposes and data processing methods differ, which directly leads to FB requiring a DB (Data Block) while FC does not. Why does FB require DB? The static variables and input/output parameters of FB need to be persistently stored … Read more
Invoking function blocks is akin to setting a one-button operation mode for various small appliances in a kitchen; just press a button, and it will automatically complete a series of actions. In the S7-1200, function blocks serve as “containers” for packaging reusable code, encapsulating commonly used control logic that can be called upon as needed, … Read more
Click the blue text for more exciting information Remote Monitoring Solutions for Industrial Automation Driven by PLC Function Block Diagrams Just two days ago, I received a call; Old Li’s paper mill had another problem. He insisted on using that cheap domestic RTU for protocol conversion last time, and now, well, it keeps dropping connections … Read more