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LDmicro Forum - Help build network RS485

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Help build network RS485 (by kleber zeitounian)
need to build a network with 4 clppic rs485, how do I address the cards, I have a PC sending data, each device must have its address not to run the wrong job, need to be sending data from the slave boards and randomly send back the PC, you have any examples you can help me.
Wed Apr 25 2012, 15:16:11
(no subject) (by Alex)
Hello, i would like to know if it is possible to use rs485 module (see image) with ldmicro, i mean, do i only have to connect TX pin to rs485 module pin and that is all? and the receiver has to have rs485 aswell connected to RX pin? is it all just hardware ?
Mon May 7 2018, 23:11:22, download attachment rs485.jpg
(no subject) (by MGP)
Yes, it's only hardware.
I prefer modules with ESD protection, you never know.
Tue May 8 2018, 01:51:49, download attachment RS485ESD.jpg
to Alex (by Oleksiy)
in rs485 you also need control directions pins
Tue May 8 2018, 04:11:11
(no subject) (by Alex)
thanks for your advices
Tue May 8 2018, 16:08:10
(no subject) (by Ihor Nehrutsa)
Blue module has direction control pins RE, DE.
But red module has no?

https://www.maximintegrated.com/en/app-notes/index.mvp/id/763
Tue May 8 2018, 18:01:35
(no subject) (by Ihor Nehrutsa)
Safeguard Your RS-485 Communication Networks from Harmful EMC Events
http://www.analog.com/en/analo...85-communication-networks.html
Thu May 10 2018, 05:33:33
(no subject) (by MGP)
Thu May 10 2018, 05:43:50
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