To automate an industrial process with a sequence we use the same concept. Brush your teeth with the toothbrush for two minutes.To illustrate how sequence steps are derived for PLC Sequencer Logic let’s look at the sequence of events required for a common household task, brushing your teeth…. It’s a good idea to declare the sequence steps as internal variables, which in turn can be used multiple times in the program if required. The basis to develop a sequence in ladder logic is to use sequence steps.
#Ladder logic program examples light sequence series
Applications that require sequencer logic include conveyor systems, palletizing machines, batching plants, packaging machines, storage and retrieval systems and the list goes on and on.Ī sequence in industrial automation is merely a series of actions required to be taken to achieve a specific outcome arranged in an orderly fashion.
PLC sequencer logic is an essential component to have in your quiver of ladder logic sample code.It forms the backbone to the majority of processes for industrial automation.