From the course: PLC Sequencer Logic

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Sequencer output instruction (SQO)

Sequencer output instruction (SQO) - Ladder Logic Tutorial

From the course: PLC Sequencer Logic

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Sequencer output instruction (SQO)

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- [Instructor] One type of sequencer instruction is a Sequencer Output Instruction. It is a blog type instruction with a following parameters, File, Mask, Destination, Control, Length, and Position. This instruction basically transfers data from the Sequencer Source File to the Output Destination Module through a mask. It is programmed as an output and placed on the right hand side of the rung. Each False-to-True wrong transition, causes the sequencer output instruction to increment to the next sequence step. The transition from false to true in the rung can be caused by two types of triggers. It can be either Event driven by something passing in front of a photo sensor, or a switch or can be Time driven, triggered or driven by a clock. Each sequencer uses 116 point output module. As the sequencer advances through its file, the stored data are transferred one word at a time through a mask to the destination. Each word…

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