Programming the PLC - Twelve Drummers
Submitted by GordonG on Thu, 17/03/2011 - 18:07.
The editing results are shown graphically on the PC’s screen in a form that electricians call “ladder logic” networks.
Picture 11 shows an example screen of one such network, the one controlling the four outputs (17-20) for the “Santa Drummer, Alligator & Hearts” at the top centre of the 12 Drummers Drumming display.
Steadily the program was built up network by network until all of the 51 different lighting elements in the display were controlled in line with the program sequence chart, and when completed consisted of 20 networks in total.
Again this stage took about a week to complete, to load, test, debug, re-test and finalise things like labelling and updating record documentation of changes made along the way.Picture 11 – Example program network
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Contributions by GordonG
Title | Updated | Type | |
---|---|---|---|
Installing Onsite - Twelve Drummers | 13 years 4 weeks ago | Book page | |
Final Fitting - Twelve Drummers | 13 years 4 weeks ago | Book page | |
Wiring the Components - Twelve Drummers | 13 years 4 weeks ago | Book page | |
Design & Equipment - Twelve Drummers | 13 years 4 weeks ago | Book page | |
First Impressions - Twelve Drummers | 13 years 4 weeks ago | Book page | |
Backplate Assembly - Twelve Drummers | 13 years 4 weeks ago | Book page | |
Sourcing the Equipment - Twelve Drummers | 13 years 4 weeks ago | Book page | |
Unit Design - Twelve Drummers | 13 years 4 weeks ago | Book page | |
The Call to Arms! - Twelve Drummers | 13 years 4 weeks ago | Book page | |
Program Chart - Twelve Drummers | 13 years 4 weeks ago | Book page | |
Bringing the Display to Life - Twelve Drummers | 13 years 4 weeks ago | Book page | |
Programming the PLC - Twelve Drummers | 13 years 4 weeks ago | Book page |
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