![]() ![]() ![]() The outputs are used to identify what needs to be enabled at each step of the sequence. The inputs are used to determine what’s currently energized and how it enables the sequencer. The Sequencer Implementation StrategyĪt the core, the sequencer is built from three components: Inputs, Outputs & Step Logic. ![]() In this tutorial, we will be going over the use cases of a sequencer, how the SQI and SQO instructions are setup as well as a practical example of a sequencer. Although the squencer isn’t something you’d expect to use on a regular basis, it’s an advanced technique which shines in specific applications. It’s a technique which utilizes SQI and SQO instructions in order to create a sequence of events which is based on specific steps & allows the PLC to follow a prescribed sequence of events. Programming a Sequencer in Ladder Logic on a PLC is an advanced skill. ![]()
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