JPH0179191U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a functional block diagram of the present invention, Fig. 2 is a circuit block diagram of an electronic cash register according to an embodiment, Fig. 3 is a system configuration diagram of a POS system, and Fig. 4a is a PLU file for inquiries. FIG. 4b is a diagram showing a part of the configuration of the calculation PLU file, FIG. 5 is a flowchart showing its operation, and FIGS. 6a and b are PLUs of other embodiments. Figure 7 is a system configuration diagram of a POS system with a master for backup, Figure 8 is a system configuration diagram of a conventional POS system, and Figure 9 is a diagram showing the configuration of a conventional PLU file. It is. 1...First memory, 2...Second memory, 3
...First control means, 4...Second control means.

Claims (1)

[Scope of Utility Model Registration Request] When a predetermined product code is specified for each product, unit price data corresponding to that product code is read out, sales are calculated based on the read unit price data, and the result of the calculation is A sales data processing device that performs writing includes: a first memory that stores sales data that has been subjected to sales calculations; a second memory that stores unit price data for each product code of a plurality of products; a first control means that accumulates the calculated sales data for each product code and writes it into the first memory; and a first control means that accumulates the calculated sales data for each product code and writes it into the first memory; and a second control means that reads out the sales data from the second memory independently of the second memory, and the first control means writes the sales data to the first memory, and the second control means writes the sales data to the first memory. A sales data processing device that independently reads out unit price data from a second memory.