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Hello.
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In this video we are going to learn serial communication pin definitions.
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Why these definitions are important when you communicating with the plc or hmı or external device.
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We are going to use rs232.
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rs422-485
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Communication with the serial communication.
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So we need to know how to create our cable with the true connection.
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So for com1 you need to know Rxd R means receiver receiving t means transmitting
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five is ground, so ground connection and 7-8 RTC and CTC.
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So in here you can see a complete definitions of the mode 1 and mode 2 and Mode 3 according to 9 pins
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female connector in here for download and upload cable for RS 232.
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If you want to go online to your plc and upload or your download your plc projects.
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So you need to adapt your cable like this.
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So in the one side Rxd should connect to two and the other side.
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Txd
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So it's cross cabling and Txd.
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Pin number is three.
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But the other side it needs to connect to Rxd
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And second connection or second pin.
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We can say it like this and ground needs to connect to ground  and you can see in here cross section is
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for the CTC and RTS also.
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But when you connect your cable like this or create your cables 2 and 3 ,3 and 2 and 5 and 5.
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If you create your cable like it is just 2 3 and 5 these pins are used.
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So that cable is going to work also.
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And for Dop-b and the plc cable so dop-b means hmı and plc communication for RS485
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--.
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So dop 9 pin male side.
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So hmı side.
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The connection of first pin needs to connect to +, + for are RS485 communication
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and the for the hmı side.
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Sixth pin needs to connect to - ,  and dop plc cable for the RS232
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communication.
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HMI  side or second pin needs to go.
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Fifth pin of eight pin of male connector, you see like this and third pin of the HMI needs to go.
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Fourth pin of plc side and the fifth pin of dop hmı side needs to go eight pin of this cable
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This is hmı side nine pin male connector.
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And this is for the plc side and dop-as and Plc cable for that RS485
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communication.
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This is also another hmı type of Delta plcs.
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If you look to scheme , so you can see are X minus and takes minus or receiving and transmitting minuses
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are connect to two minus cable are x plus and takes plus is connected to plus pin or plus cable and
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this is r converter from RSA for under into five to use B converter I have the six thousand five hundred.
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This is a device so if you want to connect your I fifty six hundred and six thousand five hundred device
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to your P.C. and if you want to convert your address from that I need five communication to use B so
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you need to adapt your cable like this from top to lower side so that means from 1 it's starting from
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1 to 8 pain for must connect to minus four IRS for underline eight five communication we need one minus
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one plus cable C G minus needs to connect to fourteen C G plus needs to connect to fifteen so also if
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we want to connect or convert your cable from r r g eleven to R S for under eighty five you need to
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adopt your r g allow on cable like this green cable needs to connect your fourth pin so green is minus
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S G minus the green cable or it can be the color can be anything else so maybe you are adapting your
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cables and you have another color so you should notice one cable or minus cable needs to connect to
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four then + cable needs to connect to three for RS485 communication.
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So for this video I am finished.
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See you in the next video.