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Title: Interfacing An Electronic Balance Through The RS232 Serial Port Using The C Programming Language
Author: Mark Fritz
Source: 1997 Measurement Science Conference
Year Published: 1997
Abstract: In todays world of electronic measurement processes, it is often desirable to automate the process with a computer. Most electronic balances have an RS232 serial port which is easily connected to a computer. The C programming language with its modularity is ideally suited to this task. I will show how the balance input/output commands can be grouped into three basic functions. These functions can then be used to develop a sophisticated control program to setup the balance, take weighings and perform analysis of the data and store the data to disk in a retrievable format. This paper will cover the details of breaking the problem down into simple distinct functions, and then putting the functions to work. This will be accomplished by writing a demonstration program. The program will be used to setup the balance, take a series of weighings, calculate the cost of the material weighed and store the results into a file which can be read by most spread sheets.

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