Abstract: Various embodiments include a data acquisition method including: generating a list of data points to be acquired from a field device; and performing the following separately for each data point. Parsing an address, and determining values of a region type, a DB offset, a byte offset and a bit offset in the address; using a first rule to calculate a sorting indicator of the data point according to the values determined; using a second predetermined rule to calculate a grouping indicator of the data point according to the determined values; sorting all of the data points according to the sorting indicators; dividing all of the sorted data points into multiple groups on the basis of the grouping indicator and a byte length of each data point and the length of a protocol data unit of the field device; and sending a data request for each group to the field device.