From the course: PLC Sequencer Logic

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Instruction SQC parameter

Instruction SQC parameter - Ladder Logic Tutorial

From the course: PLC Sequencer Logic

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Instruction SQC parameter

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- [Instructor] The sequencer compare instruction reads the input source data and compares it with the file data. The source can be an input module or a register. Then the instruction compares the input data to the set patterns that are stored in a big data file, B3, or integer data file and seven. The sequencer compare instruction has an additional status bit in the control file. The additional status bit is a found bit. The found bit in the control data file indicates whether the data on the input port matches the data stored in the sequencer data file. So, when the source pattern matches the sequencer file pattern, the found bit in the control data file is enabled, set to one. It is zero under all other conditions.

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