© Festo Didactic GmbH & Co. • MPS 135
In the following exercises there are some programming errors which have to be
detected, located and eliminated.
Information
The programs have been part of the programming projects.
Instructor: In the following you will see a list of possible errors in programs, which
have been part of the programming.
You will always see the Original program with no error and the screen shot of the
error which have to be done within the program (please refer to the comments
done by the author in the screen shots how to implement the error.
Write the task always first on the board in a short form, like for example:
Start-button and Reset-button = Start-light
Let the participants work in the team together at the same time and take the time
of each team. The time to finish the trouble shooting mentioned within the
documentation means the time including preparation of the error, downloading,
error detection, error location, error elimination of the participants and download
an test of the correct program into the PLC.
Planning
Please follow the steps: error detection (what is not working) , error location (where
can the error be logically), error elimination (find out the error location, change the
program and test the sequence).
Controll
Test the program according the short description given by the instructor on the
board.
3.1 Program – Trouble
Shooting
Trouble Shooting
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