And this is what Snap7Server should show us: Two bytes of read request and two byte of write request, as we expected. Все логические модули оснащены восемью входными и четырьмя выходными дискретными каналами. The program flow is no longer «one line after another», but a pattern of lines over time. Because code can be generalized beyond that specific case. We can change the program so it draws the house anywhere we ask. We can change the program to draw many houses, and change it again so that houses can have different heights. Starting from the variable abstraction, she selects the code and converts it into a function. By duplicating the function call, she obtains several houses which can be controlled individually. But instead of dots, we can show data.
Khan Academy’s tutorials do not mention decomposition or functions at all, and many example programs are written as one long list of instructions. She then moves to the general case by turning those constants into variables. Its very user friendly and the last model is equipped with an Ethernet port for both programming and data exchange. Клеммы для подключения исполнительных устройств расположены в нижней части корпуса. They are very different, and the first is not covered by Snap7 because is a stand-alone protocol that is not present, Is far I know, in different contexts.