JPS599771A - Method of data file changing of electronic cash register - Google Patents

Abstract

PURPOSE:To change data file surely in a short time, by making complicated keyboard operation unnecessary even when the data are numerous in adding, deleting or changing specified data in a data file. CONSTITUTION:When data transmitted from the center through a modem 17 are data transmission request, file change mode is executed. In constitution of transmitted data in file change mode, control data come first and processing data are positioned next. When the control data that determine operation mode are SO1, it shows that it is data addition mode of PLU file of a memory 11. When the data are SO2, it shows that it is data deletion mode of PLU file of the memory 11. If SO3, it shows unit price change mode of PUL file, and if SO4, it shows unit price change mode of sectional file.

Description

DETAILED DESCRIPTION OF THE INVENTION (a1) Related Field of the Invention The present invention relates to a PLU (Pric
e 1ook up) It has a book file and departmental files, and the register itself can be used as a CMT (cassette device) or F
External storage devices such as DK (floppy disk device),
Alternatively, the present invention relates to a data file changing method for an electronic cash register connected to a data processing device such as a center or other register.

(bl Disadvantages of the Prior Art) In order to facilitate processing and searching for each transaction, the data file of the register itself stores data such as wealth, unit price of a product, transaction total for each product, etc. in blocks for each product or department. The data file is configured to be memorized.Such a data file needs to be changed each time a product unit price is changed, a product is deleted, or a new product is introduced.In this case, the part to be changed is the part in the data file. Only certain parts,
Do not destroy data such as transaction totals by changing the entire file. Therefore, data that changes the entire data file cannot be sent from an external storage device or other data processing device to the register body using a general file replacement command such as a load command.

Therefore, conventionally, when it was necessary to change a file such as changing a product unit price, data was added, deleted, or changed directly using the keyboard. .

However, when there are many parts of the data file that need to be changed, it takes time to process them, the manual key operations are complicated, and there is also a high possibility of input errors.

(C1 Purpose of the Invention The purpose of this invention is to process the process quickly and reliably when adding, deleting, or changing specific data in a data file without having to perform complicated keyboard operations even if the number of data is large. The purpose is to provide a method for modifying data files.

This invention can be summarized as follows.

Changes to data files are performed using data related to file changes (
This is done by sending additional data, deleted data, or changed data) from an external storage device or center.

The data file consists of a PLU file that stores the unit price of each product, the department to which it belongs, etc., one block at a time, and a department file that stores the product group and total sales for each department, one block at a time. CMT or FDK is used as the external storage device. Data file modifications are performed in one of three operating modes: data addition mode, data deletion mode, and data modification mode. In the data addition mode in the PLU file, the new product code to be added and its unit price are added in blocks. In the data deletion mode in the PLU file, the product code to be deleted and its unit price are deleted in blocks. Same (In data change mode in a PLU file, replace specific data such as the unit price that you want to change with new data. Even in departmental files, the above PLU
The same operations are performed as for files.

When transmitting the specific data related to the data file modification described above from the external storage device or the center, first, control data is sent that determines the operation mode in the file modification mode. The register body determines how to process the next data sent from this control data. After transmitting the control data, the external storage device or center subsequently transmits addition, deletion, or modification data. If the control data supports data addition mode, additional data will be transmitted, if it supports data deletion mode, deleted data will be transmitted, and if it supports data modification mode, changed data will be transmitted. Become. Since the register body determines the operating mode in the file change mode according to the transmitted control data, it processes the next data sent according to that mode.

te1 Effects of the Invention According to this invention, only the data necessary for changing a file is transmitted from an external storage device or other data processing device to the register body, so data in the file unrelated to the change is not destroyed, and data in the file is not destroyed. It has the advantage of being able to process large quantities.

(Description of Embodiment) FIG. 1 is a key arrangement diagram of the register body of an electronic cash register embodying the present invention, and FIG. 2 is an overall block diagram of the register.

In FIG. 1, ■ is a numeric key, 2 is a department key, 3 is a function key, and 4 is an operation mode switching lock.

Function key 3 is PLU file specification key 3a
, I10 file specification key 3b, etc. In addition, the mode switching lock 4 is used for file change mode P, registration mode REG, inspection mode X, settlement mode Z, and power OFF.
Switch. As shown in Figure 2, this register is
CPU10. Memory 11. Keyboard 12. CMT13
．． FDK14. Display 15. It is composed of a printer 16 and a modem 17. The memory 11 includes ROM and RA
The RAM includes PLU files, departmental files, and other work areas. Further, the modem 17 is connected to a center (not shown) via a transmission line.

Figure 3 shows the structure of the data file. The same figure (al is P
The configuration of the LU file (FIG. 1b) shows the configuration of the departmental file.

The PLO file consists of N blocks of transaction data with product numbers 1 to N. Each block contains five items of data: product code, product name, unit price, number counter representing the number of units sold for that product, and department to which it belongs. configured. Departmental files as well.
It consists of N blocks of transaction data with department numbers 1 to N, and each block consists of a product group name, unit price, a counter that represents the number of units sold in that product group, and a totalizer that represents the sales amount in that department. configured.

FIG. 4 is a configuration diagram of a work area allocated to the RAM.

The work area is a numeric area MA that stores the number entered with the number key 1, a numeric flag FKN that memorizes the number entered, and control data or additions transmitted in the file conversion mode.

It has a transmission data storage area MB that temporarily stores deleted and changed data.

FIG. 5 is a configuration diagram of transmission data in file change mode. tal is a configuration diagram of modem request data, and FIG. 2B is a data configuration diagram for each operation mode in the file change mode.

The register in this embodiment is designed to determine the direction of data transmission between the center and the register body. As shown in FIG. 5, if $01 is at the beginning of the first block of data transmitted from the center, it indicates that there is a data transmission request from the register to the center. Further, if there is $02, it indicates that there is a data transmission request from the center to the register. Therefore, between the register and the center, the file change mode is actually executed only in the latter case.

As shown in FIG. 1BL, the structure of transmission data in the file change mode is such that control data is located first and processing data is located next. When the control data that determines the operation mode is $01, it indicates the PLU file data addition mode, and when it is $02,
Indicates the PLU file data deletion mode.

Further, when it is $03, it indicates that the unit price data change mode is for the PLtJ file, and when it is $04, it indicates that the unit price data change mode is for the departmental file. The processing data is when the control data is $01 (
When it is $0-2 (data deletion mode), it is the product code data of the block to be deleted. Also, when it is $03 (unit price data change mode), it becomes the product code data whose unit price should be changed and new unit price data, and when it is $04 (unit price data change mode of departmental file), the unit price is changed. This will be the new department number data and new unit price data. Any number of these processing data can be connected in succession until a predetermined data length is reached.

FIG. 6 shows a key manual operation procedure when changing a data file using an external storage device.

Figure (a) shows the manual key operation procedure when using the CMT, and Figure (bl) shows the manual key operation procedure when using the FDK. In other words, when using the CMT, the mode switching lock 4 is Set file change mode P, then enter rob and rOJ, and finally press 110 key 3b
Press. Also, when using FDK, set the number content for the above operation to "0".

Set it to “1”. After the above operations are performed on the register body, C
Issue a READ command to MT or FDK,
Read the data needed to modify the file.

Next, the control procedure in the register body will be explained with reference to the flowchart in FIG.

When the power is turned on, the process proceeds to step nl (hereinafter step n+ will be simply referred to as ni), and the presence or absence of a modem request is checked. This check is performed by determining whether data is being sent from the center. If there is no modem request, the process advances to n2, where the numeric area MA is reset and the numeric flag FKN is set to O.

After completing initialization at n2, wait for key power at n3. If the first input key is a numeric key, proceed to n5, otherwise proceed to nl. The content of the numeric value when proceeding from n4 to n5 is stored in the numeric value area MA, and the numeric value flag FKN is set to 1 to indicate the numeric value state (n6). n4-+n? When proceeding to the next step, check whether the file change mode P is selected using nl, and check whether the I10 key has been pressed using n8. In normal registration mode or inspection and clearing mode,
After setting the number, proceed to other processing from n7 to n9. In the case of the file change mode, the operation proceeds from the operation contents shown in FIG. 6 to n7→n8-n9-n10 after setting the number. nlO,n
il determines the content of the numeric value. If the numbers rOJ and rOJ are set, the process advances to n12, and if the numbers rOJ and rlJ are set, the process advances to n13. If the set numbers are rOJ and rOJ, data will be read from CMT, so CMT
It sends a READ command to 1 and sets the first block of the sent data in the transmission data storage area 77MB. On the other hand, if the numbers are rOJ and rlJ, then FD
A READ command is sent to K, and the first block of the sent data is set in the transmission data storage area MB. Next, in n14, it is checked whether the data sent to the area MB is an end code or not. If it is an end code, the process returns to nl; otherwise, the process proceeds to n15.

The transmission data set in the area MB is subjected to control data determination at n15. If the data is "Ol", the operation mode is set to PLU file data addition mode, and if it is "02", the operation mode is set to PLU file data deletion mode. Also, if it is “02”, P
This is the unit price data change mode for the LU file, and if it is r03J, it is the unit price data change mode for the departmental file. n1
6 to n19 are respective determination steps.

After determining the control data and determining the operation mode,
Next, the processed data is divided into n20 to n according to each operation mode.
Process at 23゛. That is, in n20, one block of new additional data is added to the PLU file, and in n21
Now, one block of transaction data corresponding to the deleted data (product code) is deleted. In n22, the unit price in the transaction data corresponding to the changed data (product code) is changed to the new unit price, and in n23, the unit price in the transaction data corresponding to the changed data (department number) is changed to the new unit price. After completing the processing, the process returns to nlO and processes the next block using the same procedure as above. When the end code is detected, the process returns from n14 to nl and shifts to the first standby state.

If there is a modem request in nl, the process goes to n24, where the data transmission direction is determined from the data in the first block.
Execute the same procedure as steps 12 to n23.

By executing the above procedure, only the data necessary for changing the data file can be transmitted in large quantities at high speed from the CMT, FDK, or center.

[Brief explanation of drawings]

FIG. 1 is a key layout diagram of the register body of an electronic cash register embodying the present invention, and FIG. 2 is an overall block diagram of the register. Figure 3 shows the structure of the data file.
The configuration of the L U file (bl indicates the configuration of departmental files. Figure 4 is a configuration diagram of the work area allocated to RAM. Figure 5 is a configuration diagram of transmitted data in file change mode. ta+ in the same figure is a configuration diagram of modem request data, and Tbl in the same figure is a data configuration diagram for each operation mode in file change mode. 4 Figure 6 shows how to change data files using an external storage device. Fig. 7 is a flowchart showing the control procedure on the main body of the register. 1 - Numerical keys, 2 - Department key, 3 - Function key, 4 - Mode switching key, 11 - Memory (for data file storage), 13-CMT (external storage device), 14
~FDK (external storage device) 17-+DEM (for connection between centers). Applicant Tateishi Electric Co., Ltd. Agent Patent Attorney Hisao Komori Figure 2 Figure 4 Concave

Claims (1)

[Scope of Claims] (11) An electronic cash register having a data file for storing transaction data such as unit price 1 total in blocks for each product or department, and in which the register body is connected to an external storage device or other data processing device. transmitting control data for determining an operation mode in the data file change mode and addition, deletion, or change data for each block according to the operation mode from the external storage device or other data processing device to the register body; A method for changing a data file of an electronic cash register, comprising determining an operating mode from the control data in the register body, and then adding, deleting, or changing data for each block according to the operating mode.