Remote-processing CAMBASIC Bedienungsanleitung PDF herunterladen (Seite 4)

Introduction - 1

ABOUT CAMBASIC

CAMBASIC is the result of 18 years of industrial language development at Octagon. Its major strengths are

ease– of– use, unequaled performance and the rich vocabulary of industrial BASIC commands. This version was adapted

for Remote Pr ocessing Corporation.

CAMBASIC is a real time, multitasking, language for control and data acquisition applications. It programs easily and has

most of the BASIC language commands found on personal computers. However, the performance and the industrial

extensions set C AM BASIC apart from any other BAS IC dialect.

While all the commands and structures in this manual have examples of their use, this manual is not intended to teach you

how to program in BASIC. We assume that you have at least some familiarity with BASIC or some other high level

language. If you have no t had any pr ogram ming experience , there ar e literally dozens of books that can teach you to

program in BASIC. Knowledge of electr onics and/or digital circuitry is not required to write successful programs.

Major Features

In addition to the commands and features in BASICs like those found in personal computers, CAMBASIC has some

important extensions for industrial control, data acquisition, and ease– of– use.

1. Labels Supported

You can call a subroutine by name in addition to the line number. This makes programs

self– documenting. The example below shows a fragment of an over– temperature program.

10 IF TEMP>150 THEN 500

500 OUT HEAT,0

With labels the same code would be:

10 IF TEMP>150 THEN ..HEAT_OFF

500 ..HEAT_OFF

510 OUT HEAT,0

The labels may be any length up to 40 characters. Since they are pre-compiled, long labels do not

slow program execution.

Line labels may be used only with GOTO and GOSUB statements. They may not be used with ON

GOTO or ON GOSUB type commands. Labels may be used as a part of conditional IF– THEN

statements, provided the GO TO com mand precede the labels.

2. No line numbers

Line labels m ean you can write co de virtually w ithout line numbers. The above examples could

easily be written in a text file as:

IF TEMP> 150 THEN ..HEAT_OFF

..HEAT_OFF

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Remote-processing CAMBASIC Bedienungsanleitung Seite 4