The FB contains also a Method (FB_Init) which needs three inputs at the moment one of these inputs is used to specify the type of the valve and is based on an enum. At the moment it consists of four inputs and two outputs which I realized by adding them as attributes with the stereotype Input and Output. The first FB I’ve created is one for a valve. One for the function blocks and another for the program.įor the FBs I have added a class diagram and another one for used EMUMs. I’ve created an EA project with two Packages under the root package. But my question is how to start and how to do it right? I’ve created a sample project in TC3 and created a UML model from it with TC3, but the result doesn’t appeal to me. I’m not sure at the moment, if I will use methods or not. I thought I’ll create a function block for each device. Even after reading most parts of the compendium I’m still a newbie.įor the current project I should create a software with which real hardware (e.g., valves, door switch, and so on) should be simulated against the machine PLC, good cases and failure cases. During the last project I was working on, I had to modify an existing Software and had to plan the modification in advance with EA, which till that day I’ve never used. For the first time since I'm working for different customers on PLC related projects since the beginning of 2008, I want to plan a software project in advance.
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