Village News

Christmas Lights

Program Chart - Twelve Drummers

It was now ready for powering up to enable programming of the PLC to begin (picture 9).

Alongside the building of the unit, it had also been necessary to think about and prepare a programming sequence chart of the intended sequence of animation in readiness to program the PLC. The proposed sequence of actions had been “mulled over” for some time and bit by bit developed into the chart shown (picture 10).

The left hand side covers the “12 Drummers” sequence and the right hand side the “MERRY XMAS” letters. Towards the end, the two sides combine into one integrated sequence.

The PLC program was then built up (loaded) from scratch using a PC connected to the PLC and running a software editing package that “talks” to the PLC over a serial comms link.

Picture 10 – Program Sequence Chart
Picture 10 – Program Sequence Chart

Contributions by GordonG

TitleUpdatedType
Installing Onsite - Twelve Drummers 12 years 49 weeks agoBook page
Final Fitting - Twelve Drummers 12 years 49 weeks agoBook page
Wiring the Components - Twelve Drummers 12 years 49 weeks agoBook page
Backplate Assembly - Twelve Drummers 12 years 49 weeks agoBook page
Sourcing the Equipment - Twelve Drummers 12 years 49 weeks agoBook page
Unit Design - Twelve Drummers 12 years 49 weeks agoBook page
Design & Equipment - Twelve Drummers 12 years 49 weeks agoBook page
First Impressions - Twelve Drummers 12 years 49 weeks agoBook page
The Call to Arms! - Twelve Drummers 12 years 49 weeks agoBook page
Program Chart - Twelve Drummers 12 years 49 weeks agoBook page
Bringing the Display to Life - Twelve Drummers 12 years 49 weeks agoBook page
Programming the PLC - Twelve Drummers 12 years 49 weeks agoBook page

Book page

TitleCreated
240214 | Hayle North Quay development collapse sees eight companies go bust Work has ground to a halt on the blocks of flats 1 week 2 days agoBook page
240220 | Poling works | Grist Lane and Marsh Lane, Angarrack | expected 20 Feb 2024 0830-1630, for one day 3 weeks 1 day agoBook page
231130 | Are you ready for weekly food waste recycling? | Food Waste, Recycling and Rubbish Collection Changes 11 weeks 6 days agoBook page
230821 | People of Cornwall town 'thrown under bus' over housing plan | direct result of councillors handled Hayle masterplan 27 weeks 7 hours agoBook page
230817 | When will new rubbish collection changes start, Cornwall 27 weeks 5 days agoBook page
230809 | Holiday park in Cornwall for emergency housing still empty | Sandbank site purchased Cornwall Council in Jan 2022 28 weeks 4 days agoBook page
230811 | Decision on huge solar farm at Carnhell Green: refused 28 weeks 4 days agoBook page
230809 | Nearest NHS dental practice to Cornwall taking new patients 28 weeks 4 days agoBook page
230730 | Practice Comparison: Praze-An-Beeble Surgery; Bodriggy Health Centre | 2023 GP Patient Survey 30 weeks 2 days agoBook page
230728 | Woman dies in fatal collision on A30 at Loggans, near Hayle 30 weeks 2 days agoBook page
230630 | Royal Cornwall Hospitals NHS Trust cares for 25 patients with Covid-19 in hospital 34 weeks 4 days agoBook page
230629 | CORNWALL has had the highest number of storm overflow spills in the UK, according to new analysis 34 weeks 5 days agoBook page