In just a few steps to the first project
1-4
System- and communication configuring D7-SYS - SIMADYN D
Edition 12.2001
1.1.2
What you can expect
The example "My First Project” guides you step-by-step to a project
which can actually run.
1.
Analyze the particular task
This allows you to identify the function blocks, inputs and outputs
which you require and which hardware:
2.
Define the hardware
You will use this hardware information in STEP7 in order to enter the
modules and define your particular properties.
3.
Configure and compile
You generate the configured software in CFC using the function
blocks and compile this. You can configure the hardware after all of
the checks have been made.
4.
Test the configuring software
You can now run the program, tested online and change it on the
SIMADYN D modules.
5.
Archive the project
You can subsequently apply this procedure for you own applications.
The task comprises two sections:
1. A
sawtooth generator
with a fixed frequency, outputs its value via a
D/A converter.
2.
Running Lights
with 8 channels.
To start off with, define the individual functions for the appropriate sub-
tasks and define the necessary hardware:
1. Sawtooth generator
A sawtooth waveform is generated by an integrator, which resets itself
after an upper limit has been exceeded. The integrator value is output
via an analog output.
2. Running light
Eight comparators compare the sawtooth value with constant values.
The results are output through digital outputs and control the LEDs on
the interface module.
The running light has the following phases:
•
All of the LEDs are dark.
•
The LEDs are switched bright and then dark again so that only one
is bright at any one time.
From the task to
the first project
The task
