RS232 to RS485 Converter+proteus

[reflectarray]

rs232 rs485 converter schematic

Hi, I want to convert from RS232 to RS485, maybe anyone here could help how to do that ( schematic ,etc). I would like to use Maxim IC.

Thank you for your assistance.

 

[Jerry_June]

rs232 to rs485 converter schematic

may u reed this tutorial, i hope that it can help u. r go to **broken link removed**.

 

[budhy]

rs232 to rs485 converter

Try this :
:arrow: MAX3160E, MAX3161E, MAX3162E
±15kV ESD-Protected, +3.0V to +5.5V, 10nA, RS-232/RS-485/RS-422 Multiprotocol Transceivers

:arrow:App Note 723
Selecting and Using RS-232, RS-422, and RS-485 Serial Data Standards

Figure 8. The MAX3162 converts bidirectionally between RS-232 and RS-485 signals in a point-to-point application.

Figure 9. The MAX3162 converts bidirectionally between RS-232 and RS-485 signals in a multipoint application.

 

[buntheun]

rs232 to rs485 schematic

dear friend
i think it can help u !!

 

[narccizzo]

rs485 max232

This one works I made it some time ago, you can feed it with 7 to 12VDC
jp1 controls the baud on = 4800, off (default) = 9600,
jp2 controls the number of bits on = 9, off (default) = 8
jp3 connect the 120 ohms resistor to the 485 line.
The microcontroller avoid the ds3696 transceiver to read data when the max232
is reading data from the 232 port, when 232 ends another circuit connected
to the 485 line can send data.
Hope this hepls.

regards narccizzo

 

[umup]

rs232 to 2-wire rs485 converter schematic

This one was made some time ago - opto isolated, auto direction switching.
Inputs TTL-compatible

 

[umup]

how to convert rs485 to rs232

Or look at https://www.rs485.com/pconverters.html

 

[info_req]

conversor rs232 a rs485 con pic+pdf

idas given above are excellent try anyone of them or otherwise try below
convert rs232 (max232) to ttl and then to rs485(ds9638/ds9637 by dallas) etc.

 

[senthilkumar]

rs232 to rs422 converter schematic

use simple MAX485 or 481

 

[pjyc]

rs485 + picture

Hi.

Attached PDF file is RS-232 to RS-485/422 Converter schematic.
It can support RS-422 and RS-485 to change only two jumppers.
And it used general devices.
75176 can be replaced max485, 65LBC184 etc.

Regards,
pjyc

 

[Medtronic]

Re: RS232 to RS485 Converter

i need s7-200 converter

 

[techyfubky]

RS232 to RS485 Converter

what is the puporse of S7-200 convertor you are aiming for ...? is it to communicate your programming device with PLC or you what to establish free port communication with some PC.

 

[Medtronic]

Re: RS232 to RS485 Converter

I want to establish free port communication with some PC

Thanks

 

[El-Master]

Re: rs232 rs485 converter schematic

Hi, I want to convert from RS232 to RS485, maybe anyone here could help how to do that ( schematic ,etc). I would like to use Maxim IC.

Thank you for your assistance.

Take a look at these RS232 to RS485 converter interfaces, many of them is using a Maxim IC. It might be a lot easier (and cheaper) than making your own.

 

[vikky]

Re: rs232 rs485 converter schematic

I have devised a circuit for RS232 to RS485 convertor which i have attached.Its not working.Has anyone faced the same pbm using the ckt.Pls help.Thank u

 

[El-Master]

I don't see your attached circuitry

 

[vikky]

I don't see your attached circuitry

I have attached the schematic again Sir

 

[vikky]

I don't see your attached circuitry

Pls check if u have logged in.You can see the attachments only if u have logged in!

 

[El-Master]

Here is a RS232 to RS485 converter Wiki that might help you to understand the basics. From here you can buy RS232 to RS485 converters

 

[vikky]

Thank you for the response Sir.I already have a convertor with a design i had attached in the previous mail.Can u pls tell me if there is something wrong in that design?