Siemens SIMATIC S7-300 PLC hardware has a Power supply, CPU (with memory card), DI, DO, AI and AO cards.
It has either a separate module for communication or a communication port might be mounted onto the CPU module.
This tutorial will explain all these hardware components one by one.
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Watch video Siemens SIMATIC S7 300 PLC Hardware | PLC for beginners Tutorial 03 online without registration, duration hours minute second in high quality. This video was added by user PLC Nerd 11 March 2022, don't forget to share it with your friends and acquaintances, it has been viewed on our site 6,02 once and liked it 7 people.