JPH02110320A - Data accumulation of data logger - Google Patents

Abstract

PURPOSE:To eliminate an error between an edit data and a print data by a method wherein a print format condition is transferred to a data write element and subjected to format transformation and thereafter integer data are accumulated in a file. CONSTITUTION:When process data 9 are '123.45670', for instance, they are accumulated as time series data 4 in a file 1, in the form of integer data of '1234' obtained by format transformation through a print format condition route 10. Next, the total value '29616' of twenty-four time series data 4 is accumulated as edit data 5 in the file 1. Then, a value '123.4' is printed on slip paper 3 as print data 6 corresponding to the time series data 4 subjected again to the format transformaton by a print format 2. Besides, print data 7 '2961.6' corresponding to the edit data 5 are printed. When 24 values of '123.4' of the print data 6 are summed up, accordingly, they are '2961.6' while the print data 7 are '2961.6', and thus the result of manual computation coincides with the print data 7.

Description

[Detailed description of the invention] [Industrial application field]

This invention allows you to edit and edit plant process data in chronological order.
This invention relates to a data storage method for a data logger that stores and prints out data.

[Conventional technology]

FIG. 2 is an explanatory diagram showing the function of printing accumulated data in the conventional data logger printing method disclosed in, for example, Japanese Patent Application Laid-open No. 56-60945. In the figure, 1 indicates a file for accumulating process data; 2 is a print format, 3 is a form paper, 4 is time series data obtained by importing the target in chronological order, 5 is edited data obtained by editing the time series data 4, 6 and 7 are print data printed on the form paper 3,
8 is a data writing section, and 9 is process data. Next, the operation will be explained. First, time-series data 4 and editing data 5 are stored in a file 1 that stores process data, and the stored data is printed on a form 3 in accordance with print format 2. The print data to be printed are the time series data 4 accumulated in the file 1 and the edited data 5. Next, a detailed explanation will be given using a data example. First, when the process data 9 is "123.45670", the data "123.45670" is stored in the file 1 as the time series data 4. Next, the 24 total values of the time series data 4 are stored as the edited data 5. "2962.96080" is stored in file 1.Next, when the print index number of print format 2 is "F7.1", "123°4" is stored on form paper 3 as print data 6 corresponding to time series data 4. "2962.9" is output as the print data 7 corresponding to the edit data 5.

[Problem to be solved by the invention]

Since the data storage method of the conventional data logger is configured as described above, the time series data and edited data stored in the file 1 match the print data 6.7 printed on the form paper 3. Therefore, there is a problem in that the result of manually calculating the print data 7 of the form 3 and the print data 6 do not match even though they have the same content. That is, to explain with a specific example, the sum of 24 "123.4's" of print data 6 is "2961.6", but the print data 7 is "2962.9", which is due to manual calculation and print data 7. This invention was made to solve the above-mentioned problem, and the result of manually calculating the edit data 5 when storing the process data 9 in the file 1 and the print data are different from each other. The purpose of this invention is to obtain a data storage method for a data logger that always matches data.

[Means to solve the problem]

In the data storage method of the data logger according to the present invention, when process data is stored in a file, the format conditions of the print format are transferred to the data writing section and converted into integer data by converting the data format, and the data is stored in the file. When storing data, all data is stored as integer data, and when printing, the data in the file is formatted again according to the print format and printed on the form paper.

[Effect]

In the data storage method of the data logger of this invention, when storing plant process data in a file in chronological order, the formatting conditions are transferred from the print formatting unit to the data writing unit, and after converting the data according to the formatting conditions, Data is stored in a file, and then print data is output to form paper.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. In the figure, the same parts as in Figure 2 are designated by the same reference numerals.
In the figure, 10 is a print format condition route through which the data writing unit 8 reads the print format 2. Next, the operation will be explained. First, when storing time series data 4 and edited data 5 in file 1, data writing unit 8 reads print format 2 via print format condition route 10, converts all formats into integer data, and files the file. Accumulate to 1. Next, the time series data 4 is converted into real number data matching the printing index of the printing format 2, and is printed out on the form paper 3. The print data to be printed is time series data 4 and editing data 5.
That is. Next, a detailed explanation will be given using a data example. First, if process data 9 is "123.45670", time series data 4
"1234", which is format-converted based on the print format obtained from print format condition route 10.
'' is stored in the file 1 as integer data.Next, as the edited data 5, the 24 total values of the time series data 4 ``2'' are stored in the file 1.
9616" is stored in file l. Next, print data 6 corresponding to time series data 4 reformatted by print format 2 is stored as "
"123.4" is printed on the form paper 3. Also, "2" is printed as the print data 7 corresponding to the edit data 5.
961.6" is printed on the form paper 3. Therefore, the total of 24 print data 6 "123.4" is "2961.
6", and the print data 7 is "2961.6", and the manual calculation result and the print data 7 match. The above embodiment describes a data storage method for process data, but it is In addition, although the above embodiment was explained using time series data from 1 o'clock to 24 o'clock, the same effect can be obtained with seconds, minutes, days, months, and years. play.

【Effect of the invention】

As described above, according to the present invention, when storing process data in a file, the print format conditions are transferred to the data writing section and converted into formats before being stored as integer data. If the data is converted and printed on the form paper, calculation errors in the edited data will be eliminated and highly accurate print data will be obtained.

[Brief explanation of drawings]

FIG. 1 is a data flow diagram showing a data storage method of a data logger according to an embodiment of the present invention, and FIG. 2 is a data flow diagram showing a data storage method of a conventional data logger. In the figure, 1 is a file, 2 is a print format, and 3 is a file.
is a form paper, 4 is time series data, 5 is edited data, 6.
7 is print data, 8 is a data writing section, 9 is process data, and 10 is a print formant condition route. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] In the data storage method of a data logger that edits and stores plant process data in chronological order and prints out the accumulated time-series data on form paper, the print format to be printed on the form paper is set via the print format condition route. transfer the integer data to the data writing section, convert the process data into a format based on the transferred print format, store the integer data in a file in chronological order, reformat the accumulated integer data according to the print format, and print it. A method for accumulating data in a data logger, characterized in that the data is output on a form paper.