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RS232 to RS485 Converter+proteus

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reflectarray

reflectarray

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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.
 

rs232 to rs485 converter schematic

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

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

13_1169615174.gif


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

2_1169614930.gif


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

    reflectarray

    reflectarray

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rs232 to rs485 schematic

dear friend
i think it can help u !!
41_1169612332.JPG
 
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
 

rs232 to 2-wire rs485 converter schematic

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

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.
 

rs232 to rs422 converter schematic

use simple MAX485 or 481
 

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
 
Re: RS232 to RS485 Converter

i need s7-200 converter
 

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.
 

Re: RS232 to RS485 Converter

I want to establish free port communication with some PC

Thanks
 

Re: rs232 rs485 converter schematic

reflectarray said:
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.
Click to expand...

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.
 

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
 

Attachments

  • Schematic.pdf
    14.9 KB · Views: 277

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?
 

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