RS232 dec to hex conversion

Posted on 2006-07-14
Medium Priority
Last Modified: 2012-06-21
I am wrtting a program that sends data to a spray jet printer via a RS232 port.  I have been sending commands with 1 byte hex data and it works fine ie. 1B 02 14 1B 03  (decimal 27 2 20 27 3)

Now I need to send command data with 2 bytes in hex ie.  143 (decimal 323).  How do I send this type of hex value? The command allows 2 bytes for this data, I tried 01 43 but this is interpreted incorrectly? Any help would be greatly appreciated.
Question by:terrenceg
LVL 43

Accepted Solution

TimCottee earned 500 total points
ID: 17108205
Hi terrenceg,

It probably expects lowbyte/highbyte order so reversing your 01 43 to 43 01 will probably work.

Tim Cottee

Author Comment

ID: 17108320
Thanks Tim, can you tell me which is the most significant part.  I read somewhere in the manual that I should transmit the most significant part first

Featured Post

Upgrade your Question Security!

Your question, your audience. Choose who sees your identity—and your question—with question security.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

This tutorial demonstrates one way to create an application that runs without any Forms but still has a GUI presence via an Icon in the System Tray. The magic lies in Inheriting from the ApplicationContext Class and passing that to Application.Ru…
Parsing a CSV file is a task that we are confronted with regularly, and although there are a vast number of means to do this, as a newbie, the field can be confusing and the tools can seem complex. A simple solution to parsing a customized CSV fi…
To export Lotus Notes to Outlook PST or Exchange and Domino Server files to Exchange Server or PST files with ease, go for Kernel for Lotus Notes to Outlook conversion tool. Through the video, you can watch the conversion process. A common user with…
Did you know PowerShell can save you time with SaaS platforms? Simply leverage RESTfulAPIs to build your own PowerShell modules. These will kill repetitive tickets and tabs, using the command Invoke-RestMethod. Tune into this webinar to learn how…

624 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