This video, RS232 serial communication tutorial - Industrial communication protocols for industrial automation -2, is the second part of RS-232 tutorial.
In our previous lesson, which was the first part of lesson on RS-232, we studied about the electrical characteristics of RS-232 and we had seen what voltage range represent logic 0 and 1 for Data lines and Control Lines. Now we will proceed further about mechanical characteristics of RS-232.
This video explains about the type of control lines.
It will explain why a 25 pin connector was used instead of 9 pin connector, when 9 pins are sufficient for data transmission.
All the pins of a DB9 connector are explained for understanding the SR-232 protocol data transmission.
Limitations of RS-232 Protocols are also explained in this video.
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#rs232, #PLC, #DCS, #instrumentation, #automation, #serialcommunication, #protocol
