Programming Logo - Siemens LOGO! 24RC Manual

3 Programming LOGO!

The first steps with LOGO!
By programming we mean entering a circuit. A LOGO! pro-
gram is really no more than a circuit diagram represented
in a different way.
We have changed the way it is represented to suit
LOGO!'s display panel. In this chapter we will show you
how to use LOGO! to turn your applications into LOGO!
programs.
Note
The LOGO! variants without a display –
LOGO! 12/24RCo, LOGO! 24RCo and LOGO! 230RCo –
do not have an operating unit. They are mainly intended
for serial applications in small machine and apparatus
construction.
LOGO!...RCo variants are not programmed on the device.
Programs from LOGO! software or from memory modules
of other LOGO! devices are transferred into the device.
In the first section of the chapter a brief example will help
you get to know how to use LOGO!.
We will begin by introducing the two basic terms con-
nector and block and showing you what is meant by
them.
In a second step we will develop a program from a sim-
ple, conventional circuit.
In the third step you can then enter this program directly
into LOGO!.
After reading through only the first few pages of this
manual, you will already have stored your first executable
program in LOGO!. Using suitable hardware (switches etc.)
you will then be able to carry out your first tests.
LOGO! Manual
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