Programming; Introduction To The Software - ABB 07CR41 Operating Manual

5

Programming

5.1 Introduction to the software

Advant Controller AC 31 / Issued: 01.99
The 907 PC 331 programming software is used for all the AC31 basic units.
This software runs under DOS and also in DOS boxes of Windows
Windows 95 and NT there are slight restrictions, e.g. printing via network does not work
correctly.
The software allows you to create, send, test and print user programs as well as initialize, start
and stop the basic unit.
There are three programming languages:
- LD: is a graphical language based on the symbols of contact diagrams. It was adapted for
combinational processing and offers the basic symbols and automation function blocks
such as contacts, timers, counters.
- FBD: is a graphical language of function blocks which allows complex procedure
programming by combining existing library functions.
- IL: is an instruction list program which is intended primarily for programmers who already
have considerable experience of automation.
Organization of projects:
A project may be:
Non-modular: the project comprises one single and unique main program
Modular: the project comprises several programs
The programs of a modular project may be written in different languages.
Password:
With the help of a password, read and write program access can be locked for the 40 and 50
series basic units.
5 – 1 Programming
®
(3.1, 95 or NT). In
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