JPH0774756B2 - In-line system PLU setting method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PLU setting method for an in-line system using an electronic toll balance as a terminal.

Prior art In this type of conventional in-line system, the PLU is activated when an inspection command is received from the host computer.
All data within the range specified by the host computer is transmitted regardless of whether the file data has been changed.

Problems to be Solved by the Invention As described above, since all the data within the range specified by the host computer is transmitted regardless of whether the PLU file data has been changed, the data within the specified range is transmitted. If there is a lot of data, there is a problem that it will take time to finish transmitting the data.

Means for Solving Problems In an in-line system in which a large number of electronic toll balances are connected in-line to the host computer, when the PLU data is changed on the electronic toll balance side, the PLU file is set and the host computer side When the check command is received from the host computer, only the data of the PLU file in which the flag is set is transmitted to rewrite the PLU on the host computer side.

Action When transmitting to the host computer, only the data whose PLU file has been changed is selected and transmitted, so that the amount of transmission may be small, whereby the time required for transmission can be shortened.

Embodiment An embodiment of the present invention will be described with reference to the drawings. First, the in-line system 1 is connected to a host computer 2 via a transmission line 3 with a large number of electronic toll scales 4.

The electronic fee scale 2 has a CPU (central processing unit) 6 to which a scale unit 5 is connected, and a print buffer 7, a memory 8 and an I / O block 9 are connected to the CPU 6. The print buffer 7 temporarily stores the print contents immediately before printing on a label or the like, and the memory 8 has a function as a program memory for storing a program and a weight for each product number.
PLU in which the number of issues, amount of money and other items are set
It also has the function of (price / luck / up).

Next, a display device 10, a keyboard 11, and a thermal printer 12 are connected to the I / O block 9. An interface 13 connected inline with the host computer 2 is connected to the I / O block 9.

Further, the PLU area 14 of the memory 8 has its data area 1
In addition to 5, a flag area 16 in which a flag is written is set.

In such a configuration, the product number of the PLU file is designated, data is called, print data is set based on the weight measured by the balance section 5, and the thermal printer 12 issues a label.

Then, the PLU data may be changed on the electronic charge balance 4 side. In that case, at the same time as the change, a flag indicating that the flag area 16 of the PLU file has been changed is set. In this way, the thermal printer 2
By this, label printing is sequentially performed, but if an inspection command is sent from the host computer 2, the operation is as follows.

That is, when the inspection command is transmitted from the host computer 2, first, one of the electronic fee scales 4 as the terminal device is specified. This electronic toll balance 4 checks the status, and if it cannot process the check command, it creates a BUSY text and sends it to the host computer 2
To the command waiting state.

If the inspection command can be processed, READY text is created and sent. Next, the PLU file with the change flag set is searched. At this time, if there is no PLU file in which the change flag is set, a dummy text is created and transmitted, and the state returns to the command waiting state. If there is a PLU file with the change flag set, data text is created and sent. After the text is transmitted, the change flag in the transmitted PLU file is reset.

Next, the routine from the search of the change flag of the PLU file to the reset of the change flag is executed for the PLU with the change flag.
Repeat until the file disappears, and when there is no change flag set, data transmission to the host computer 2 side is terminated and the PLU from the electronic charge balancer side ends.
Can be set. Then, such an operation is sequentially performed for all of the electronic fee scales 4, whereby the PLU setting on the host computer 2 side is performed in a short time for all of the changed PLU files.

As described above, the present invention, in the in-line system in which a large number of electronic charge scales are connected inline to the host computer, sets a flag in the PLU file when the PLU data is changed on the electronic charge scale side. , When the check command is received from the host computer side, only the data of the PLU file that has the flag set is transmitted so that the PLU on the host computer side is rewritten, so when transmitting to the host computer, the PLU file is transmitted. Since only the changed data of (1) is selected and transmitted, the amount of transmission may be small, whereby the time required for transmission can be shortened.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a block diagram of an electronic toll scale, FIG. 2 is a block diagram of an in-line system, FIG. 3 is a flow chart, and FIG. 4 is a memory.
It is a RAM map. 1 ... In-line system, 2 ... Host computer, 4 ... Electronic charge balance

Claims (1)

[Claims] 1. In an in-line system in which a large number of electronic toll balances are connected in-line to a host computer, when the PLU data is changed on the electronic toll balance side, the P
A flag is set in the LU file, and when the inspection command is received from the host computer side, only the data of the PLU file in which the flag is set is transmitted to rewrite the PLU on the host computer side. How to set PLU for inline system.