RS485

[HyperUniverse]

Hi,

I cannot understand how RS485 is working, particularly receiving data.

Can anyone give me an example?

Let's say I'm expecting this message:

Code: Select all

0x01
0x00
0xA6
0x41
0x7B
0x30
0xFC
0x16
0x41
0x7B
0x01
0x00
0xFC
0x16
0x16
0x41

How do I get it?
All the time the message is different and there's no start bit and no stop bit.
How do I guess when the data is coming, and when the full message has ended?

[filip]

Hi,

If you are using RS-485 library from the compiler, you can see the message format description at the bottom of the RS-485 library help topic in the compiler's help file.

Regards,
Filip.

[jumboelettronica]

RS485 is a transport vehicle for industrial use. Generally one Byte is sent at a time with the logic used in RS232, that is a start bit, 8 data bits, and one or two stop bits.
The speed is limited by the length of the line, the number of nodes and the type of cable used.