Connected a RS-232 to RS-485 converter to the RS232 port

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Discussion Overview

The discussion revolves around the use of an RS-232 to RS-485 converter connected to an RS-232 port, specifically focusing on how to send bytes or signals to the converter using HyperTerminal. The scope includes practical application and technical setup.

Discussion Character

  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant inquires about how to send a byte or signal to the RS-232 to RS-485 converter using HyperTerminal.
  • Another participant provides a link to a tutorial on HyperTerminal and mentions the importance of selecting the correct COM port and using an oscilloscope to verify signal activity.
  • A participant expresses confusion about how to send a byte, asking if typing '1' and pressing enter is sufficient and how to confirm receipt of the signal by the converter.
  • In response, a participant suggests that typing any character and hitting Enter should suffice, and that the ASCII representation of the character should appear in serial form.
  • One participant questions the purpose of their actions, seeking clarification on whether they need to connect the converter to the RS-485 side to receive a reply.
  • Another participant asks about a specific model of RS-232 to RS-485 converter, seeking guidance on sending signals using HyperTerminal.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and confusion regarding the process of sending signals through HyperTerminal to the RS-232 to RS-485 converter. There is no clear consensus on the correct procedure or setup, and multiple viewpoints are presented.

Contextual Notes

Participants have not fully resolved the technical details regarding the connection and communication between the RS-232 to RS-485 converter and the use of HyperTerminal. There are assumptions about the setup that remain unverified.

strandedboy
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hi, i have connected a RS-232 to RS-485 converter to the RS232 port, and i would like to know if any1 could tell me how to send a byte or signal to it using hyper terminal.. thx~
 
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strandedboy said:
hi, i have connected a RS-232 to RS-485 converter to the RS232 port, and i would like to know if any1 could tell me how to send a byte or signal to it using hyper terminal.. thx~

Welcome to the PF. Hopefully you won't be stranded here!

Have you used HyperTerminal before? It is fairly straightforward to use, but there are some configuration options that can sometimes get tricky.

I went to wikipedia.org to see if they had a good intro to HyperTerminal, but their article is only semi-related. Luckily, a link at the bottom of that article has a good tutorial intro:

http://www.dnatechindia.com/index.php/Tutorials/8051-Tutorial/HYPERTERMINAL.html

That should get you going with HyperTerminal. Be sure to specify the correct COM1 or COM2 port (depends on if your PC has more than one DB-9 connector). You can use an oscilloscope to watch the signals, and verify activity. Keep in mind that RS-232 signals are +/-12V, and RS-485 signals are 0V-5V.

Let us know if you are up and running now...
 


hmm i do not understand how to send a byte to the converter... in terms of byte do i just type 1 and press enter? and how am i supposed to know if the converter has received the byte/signal? sorry for the trouble..thx
 


strandedboy said:
hmm i do not understand how to send a byte to the converter... in terms of byte do i just type 1 and press enter? and how am i supposed to know if the converter has received the byte/signal? sorry for the trouble..thx

Yep. After readimg the setup info in the link, just type anything and hit Enter. Look for the ASCII representation of the typed character to come out in serial fashion...
 


I guess I should ask, what are you trying to do?
 


erm I'm trying to use hyper terminal to send signals through to the RS-232 to RS-485 converter... or am i doing it wrong? Do I need to connect the converter to the RS485 to have a reply?
 


any1 know about MOXA's TCC-80 port powerd RS-232 to RS-485 converter?
I'm supposed to send a signal to it using hyper terminal.. any1 could teach me how?? thanks in advance
 

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