JPS60262256A - Terminal device - Google Patents

Abstract

PURPOSE:To set and change freely a terminal ID from outside by defining the input keys in order of input after waiting for key input and supplying the input to the terminal ID by means of the defined keys in a system start mode. CONSTITUTION:In a system start mode a CPU1 starts the key definition and the ID decision processing according to the programs stored in a PROM2. A counter (n) in a RAM3 is first cleared and the code of the first key supplied from a keyboard 5 is read. The key codes are stored to key code tables Y(0)-Y(10) in the RAM3 in the order of inputs. In an ID decision processing mode the variable value of the counter (n) is set at ''0''. Then a key code table Y(n) is retrieved successively at and after n=0 after the key code supplied with the 11th key input is read. Then the (n) is decided as ID1 and stored to a terminal ID area if the table Y(n) storing a key code equal to said input one is searched.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to a terminal device in which the key arrangement is determined by a program and in which program loading at system start-up is performed by polling from a main device.

(Background of the Invention) Conventionally, in terminal devices such as banking systems and POS systems, the key layout, that is, the definition of each key, is not fixed in hardware, but can be changed freely by a program, which reduces the number of keys and makes operations easier. There are known devices designed to simplify the process and make the device more versatile.

In such terminal devices, the key layout is determined as appropriate after the program is loaded through the transmission line by polling from the main device or program loader when the power is turned on at system startup, or while the program is running. The key layout is not fixed before the program is loaded. For this reason, conventionally, each terminal device is equipped with hardware such as a dip switch, and this hardware sets an identification code (terminal ID) for each terminal device, and this terminal ID is used through the transmission line. The program is loaded by receiving polling.

Therefore, in such a terminal device, the terminal ID
Dedicated hardware is required for configuration, and since such hardware is not operated frequently and is generally installed within the housing, there is an inconvenience that the terminal ID cannot be easily changed. .

(Object of the invention) The object of the present invention is to solve the problems of the conventional type described above.
The purpose of the present invention is to provide a terminal device that eliminates dedicated hardware for terminal IDMQ determination and allows the terminal ID to be freely set and changed from the outside.

(Configuration and Effects of the Invention) The terminal device of the present invention waits for key input after the power is turned on at system startup, defines the input keys in the order in which they are input, and performs one key operation using the defined keys. It is based on the idea that by inputting the terminal ID, polling from the outside can be performed through the transmission line, and the target program can be polled to perform the function as a terminal device. According to the present invention using the concept, there is no need for dedicated hardware for setting the terminal ID, and the terminal ID can be freely set and changed from the keyboard without opening the housing of the device.

(Explanation of Examples) Hereinafter, the present invention will be explained in detail using the drawings.

FIG. 1 shows a block configuration of a terminal device according to an embodiment of the present invention. In the figure, 1 is a central processing unit (CPU) that is composed of a microprocessor or the like and controls the operation of the entire terminal device, 2 is a transmission control program similar to the conventional type, and key definition and ID determination that are the features of the present invention. A programmable read-only memory (PROM) 3 stores a processing program and stores a control program for the CPU 1 that is loaded via a transmission line 4;
random access memory (RAM) that temporarily stores various data generated when the CPU 1 executes each program;
5 is a keyboard, and 6 is a transmission control device.

In addition to the program area that stores the loaded control program, RAM3 has the following areas as shown in Figure M2.
Key code table Y(0),...

Y (10), terminal ID 'J7 I Di, I
Work areas such as a DO-reception ID area IDR and a counter n are provided.

Next, the operation of the apparatus shown in FIG. 1 will be explained with reference to the flowchart shown in FIG.

At system startup, when the device is powered on, CPU1
starts key definition and ID determination processing according to the program stored in PROM2. First, in key definition processing, counter n in RAM 3 is cleared, the key code of the first key input from keyboard 5 is read, and this key code is stored in key code table Y(0) in RAMa. After incrementing the variable value n=Q to set n=1, the above-described key code reading and storage in the key code table Y(2) are repeated for the second subsequent input key. In the same manner, the key codes of the 3rd to 10th input keys are stored in the keys Y(3) to Y(10), and when the incremented n reaches 11, Move on to the next process. Note that here, the keys corresponding to the key codes stored in Y(0), ..., Y(9) are respectively rOJ.
,..., "Define as 9J key, Y(10) is [setting]"
It is defined as a key. Furthermore, the terminal ID is assumed to be two digits.

The next ID determination process consists of an ID1 determination process and an IDO determination process. First, in the ID1 determination process, the variable value n of the counter n is set to O, and after reading the 11th key manual key code, the key code table Y (n> is sequentially searched from n=Q. Then, Key code table Y that stores the same key code as the input key code
If (n) is found, then n is determined as ID1 and stored in the terminal ID area. Note that the input key code is in the key code table Y(0) to Y(
If it cannot be found in any of the above 9), it means that an undefined key or the "setting" key Y (10) has been input, and this is an erroneous operation, so error processing such as emitting a warning sound is performed.

Continuation<In the IDO determination process, the IDO is determined in exactly the same way as the 101 determination process described above for the 12th key
is determined and stored in the terminal ID area.

When ID1 and IDO are determined in this way, the 13th key code is read manually,
Compare this key code with the contents of Y (10). This 13th key must be a "setting" key, and if the above comparison results do not match, error processing such as emitting a warning sound due to an erroneous operation is performed. On the other hand, if they match,
After setting (ID1.ID0) as the terminal ID, the program is loaded from the transmission line as in the conventional case. That is, if polling is received from the transmission line and the received signal includes a terminal ID that matches the own machine, the program low gain for the own machine is: 1' 8 fingers. , followed by ei, send, send, wa.

The program is loaded by the signal.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the general configuration of a terminal device according to an embodiment of the present invention, FIG. 2 is a memory configuration diagram of the RAM in FIG. 1, and FIG. 3 is an explanation of the operation of the terminal device in FIG. 1. This is a flowchart for 1...CPU, 2...PROM13...RAM. 4...Transmission line, 5...Keyboard, 6...Transmission control device. Patent applicant Tateishi Electric Co., Ltd. Agent Patent attorney Tatsuo Ito Agent Patent attorney Tetsuya Ito

Claims (1)

[Claims] 1. In a device that functions as a terminal after a program has been loaded through a transmission line, when inputting the identification code of the device, the input is performed on a predetermined number of keys that are sequentially input from the initial state. 1. A terminal device characterized in that after giving a predetermined definition in accordance with the defined order, an identification code of the device is set by input using the defined key, thereby making it possible to load a program. 2. Press "O" for each of the keys input sequentially. [1J, . . . , "9" and a "setting" key are defined as the terminal device according to claim 1.