Solved

RS-485 communication with delphi 5

Posted on 2001-06-18
4
867 Views
Last Modified: 2010-04-06
My project is to print to 3 ink jet printers, which are connected to RS-485 network. Do you know any suitable components to use with delphi 5. I would also be grateful for any example code.
0
Comment
Question by:sahkofinne
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 5

Expert Comment

by:TheNeil
ID: 6205435
Are the printers installed in Windows (sorry but networks aren't my thing)? If they are then you should be able to simply send the document to each of the printers installed by using the PrinterIndex property of TPrinter

FOR iCount := 0 TO (Printers.Count -1)
DO
BEGIN
  PrinterIndex := iCount;
  //Print the document
END;

The Neil =:)
0
 

Author Comment

by:sahkofinne
ID: 6205526
The printers are not istalled in windows.
They are special ink jet printers which prints article number to products, which are made in production line.
Each printer prints different article id.
I shoud send new data to all printers about every second.

I have done this before with RS-232 (one printer) interface but I don't know how to use RS-485 interface?

0
 
LVL 8

Accepted Solution

by:
TOndrej earned 100 total points
ID: 6207348
Go to http://www.rs-485.com/software.htm and download RS-485 driver and source code example in C. You can also find RS-485 specs on that site.
HTH,
TOndrej
0
 
LVL 3

Expert Comment

by:sburck
ID: 6223687
I find the easiest thing to do with RS-485 to PC connections is to buy a cheap 485/232 adapter, and access them via RS232.  This is an easy way to go, especially if you don't need multipoint or long distances.
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …
Attackers love to prey on accounts that have privileges. Reducing privileged accounts and protecting privileged accounts therefore is paramount. Users, groups, and service accounts need to be protected to help protect the entire Active Directory …

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question