JPH05128036A - Method for setting up polling table - Google Patents

Abstract

PURPOSE:To set up all slave machines in polling bits corresponding to the set number of slave machines and to reset machines succeeding the inputted number of slave machines by setting up the number of plural slave machines connected to a control machine through a common like in a polling table. CONSTITUTION:Electronic cash registers (ECRs) consist of a control station ECR 10 and plural slave station ECRs 11 and the slave station ECRs 11 are connected to the control station ECR 10 through common like 12. A CPU 13 executes various processing based upon a program stored in a ROM 14. A RAM 15 to be used for recording/reading out necessary data has a polling table. A polling table setting program for setting up all slave station ECRs 11 to driven states and setting up slave stations of driving ECRs 11 to driven states and setting up slave stations in polling bits succeeding the input of units to undriven states is prepared. Consequently the setting of the polling table can simply be executed within a short time and the slave stations can easily be managed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polling method, which is one of the methods for establishing a data link in a transmission control procedure, in which a slave, for example, active / inactive is set in a polling table. Regarding the setting method of the table.

[0002]

2. Description of the Related Art For example, there are 20 or 3 ECRs (electronic cash register) used in supermarkets.
Many, such as 0, are installed at the cash register, but not all are operated all the time, and a small number of them are operated when the number of customers is low. In such a case, usually one of the ECRs is used as a control station, the other ECRs are used as dependent stations, and a polling table is provided in the ECR of the control station. It is provided to manage the ECR operation of the group. However, the above-mentioned setting of the polling table requires the control station ECR to set each polling bit (address area of each subordinate station ECR) of the polling table to enable or disable each subordinate station ECR. If there are 20 or 30 dependent station ECRs, it is necessary to repeat the setting for that number. Therefore, there is a problem that it takes time to set and it is very troublesome to set.

[0003].

SUMMARY OF THE INVENTION An object of the present invention is to provide a polling table setting method capable of simplifying the above-described polling table setting in a short time.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a polling table for connecting a plurality of subordinate machines to a controller having a polling table via a common line and setting or resetting each subordinate machine in the polling table. And
Input the number of subordinate machines to be set in the polling table, and when this number is input, set all the subordinate machines in the polling bits up to this number, and the subordinate machines of the polling bits subsequent to the input number Is a method of setting a polling table for resetting the.

[0005]

According to the polling table setting method of the present invention, for example, if it is desired to operate 15 of the 30 subordinate machines, if 15 of the operating machines is input, this machine will be used. All the slaves in the polling bits up to are set, and all the slaves in the 16th and subsequent polling bits are reset. Therefore, the polling table is set to 15 as in the above example.
Only one operation is required to input the number of units to be set, the setting can be done easily and in a short time, and the group management of the subordinate machines becomes easy.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. Drawings are ECR used in supermarket
The setting of the polling table in the (electronic money checker) is shown in FIG. 1, and ECR is one control station ECR1.
0 and a plurality of dependent stations ECR11 ..., The plurality of dependent stations ECR11.
It is connected to R10. FIG. 2 shows the control station ECR10 described above.
The CPU 13 executes various processes according to programs stored in the ROM 14, the RAM 15 executes recording and reading of necessary data, has a polling table, and the keyboard 16 registers money. Then, the polling table is set and input, and the interface 17 sends another dependent station ECR via the common line 12.
11 ... is connected.

In the above-mentioned polling table setting, when the operating number of dependent stations ECR11 is entered in the above-mentioned program of the ROM 14 in the polling table setting, all the dependent stations ECR11 in the polling bits up to this number are operated. , And a polling table setting program for setting the dependent stations ECR11 of the polling bits subsequent to the above-mentioned input number to non-operation.

FIG. 3 shows the polling table set in the RAM 15 described above. The polling bit has one address, for example, 8 bits b0 to b7 at the address a, and ECRs 10, 11 ... Are assigned to the respective bits. ..
For example, the control station ECR10 is assigned the first place, and subsequently the dependent stations ECR11 ...
When the order is set to R11 ... Like the serial numbers 1, 2, 3 ..., the order of polling bits is assigned along this order, and in this embodiment, 64 bits are provided.

The setting of the polling table configured as described above will be described in detail with reference to FIG. 4. The setting of the polling table is executed by a well-known input operation from the keyboard 16, and the processing mode is set to the setting mode or the polling table. If the setting is other than the setting, the corresponding process is executed (steps n1 to n4).

If it is determined in step n2 that the polling table is set, then the dependent station ECR
The number of 11 ... Is input (step n5). For example, E
In addition to the control station ECR10, the number of operating CR10,11
To activate 15 subordinate stations ECR11 ...
The keyboard 16 is used to input the number of 15 subordinate stations ECR11.

With this input, the CPU 13 uses the polling table setting program of the ROM 14 to activate all the bits from the beginning to the polling bit of order "15" to "1".
And all polling bits after the rank "16" are set to the reset "0" of non-operation (step n6, see FIG. 3).

By setting the polling table in this way, the input operation is performed only once by inputting the number of sets of the dependent stations ECR11, the setting can be done easily and in a short time, and the group management of the dependent stations ECR11 ... Is facilitated. Become.

In the correspondence between the configuration of the present invention and the above-described embodiment, the controller of the present invention is the control station ECR of the embodiment.
10, the subordinate machine corresponds to the subordinate station ECR11, but the present invention is not limited to the configuration of the above-described embodiment.

That is, the setting method of the present invention can be used for any device provided with a polling table.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a control station ECR and a dependent station ECR.

FIG. 2 is a block diagram of a control circuit of a control station ECR.

FIG. 3 is an explanatory diagram of a polling table.

FIG. 4 is a flowchart of a polling table setting process.

[Explanation of symbols]

 10 ... Control station ECR 11 ... Subordinate station ECR 12 ... Common line 13 ... CPU 14 ... ROM 15 ... RAM (polling table) 16 ... Keyboard

Claims (1)

[Claims] 1. A polling table for connecting a plurality of subordinate machines to a controller having a polling table via a common line and setting / resetting each subordinate machine in the polling table. Enter the number of subordinate machines to be set, and when this number is input, set all the subordinate machines in the polling bit up to this number, and reset the subordinate machines of the polling bit after the input number How to set the table.