Abstract: To make it easy for a user to extract individual data from time series data. A programming support apparatus or a programmable logic controller (PLC) analyzes a user program to decide an extraction period of individual data. For example, in the user program, an instruction word for setting the extraction period is described. A collection part repeatedly collects device data stored in at least one device to form time series data having periodicity. An extraction part extracts individual data in each extraction period from the time series data. An addition part adds identification information for identifying each piece of the individual data extracted by the extraction part to each piece of the individual data.