Converter for RS232 to RS485 2 Wires (half duplex)

Status
Not open for further replies.

kkdelabaca

Full Member level 2
Joined
Apr 18, 2003
Messages
140
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,298
Activity points
1,105
rs485 half duplex from rs232

Hello,

somebody know how convert the protocol RS232 (RX and TX) to RS485 2 Wires (half duplex).


Regards!
 

max232 ttl rs232 half-duplex converter

Convert the RS232 level to TTL using a MAX232 chip
Use the TX line to trigger a re-triggerable monastable.
The output of the monostable is used to switch the RS485 chip to transmit mode.
The period of the monostable is a bit longer than the baud rate.
 

half duplex+converter+rs232+rs485

Look here:




best regards
 

Convertir RS485 4 hilos a 2 hilos

Tengo el siguiente problema: el master es Rs485 a 2 hilos, y los modems(esclavos) son a 4 hilos, tengo que conectarlo.. pero no se como!!, existe la manera de pasar de 4 hilos a 2 hilos en RS485?
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…