How to make a communication programming cable between PLC and laptop computer using Omron CPM1A

水天需

How to make a communication programming cable between PLC and laptop computer using Omron CPM1A [Copy link]

Open the Omron PLC CPM1A shell. The 20-pin pin on the right side of the chip is the communication interface. I found a wiring diagram on the Internet. I don't know if this method is useful. In addition, my laptop does not have an RS232 serial port when connecting to the computer. Can I use a DB9 to RJ45 crystal plug? Please give me some advice, thank you!

水天需

What else should I pay attention to during the production process? Do I need an additional driver? Please help, thank you! Buying a programming adapter is a bit expensive

tagetage

The laptop does not have an RS232 serial port. Can I use a DB9 to RJ45 crystal plug? - No, if the laptop does not have an RS232, you can buy a USB to RS232 cable.

tagetage

I found a wiring diagram on the Internet, but I don't know if this method is useful. -----I haven't tried it, but it should be useful.

What should I pay attention to during the production process? ----Pay attention to the line sequence and avoid soldering errors.

Do I need any additional drivers? -----No additional drivers are required.

水天需

I only have this DB9 to RJ45 crystal plug and resistors. Please tell me why it doesn't work?

tagetage

DB9 to RJ45 crystal connector-----DB9 and RJ45 are appearances, not electrical standards. Please post a picture so we can see what they are.

水天需

水天需

This is a DB9 female connector. Can't I just find a male connector and solder it together?

水天需

The picture has been sent, please help me check it out

nian1206

Mark it and I will use it later. Thank you very much for sharing. May good people have a peaceful life!