JPH02306352A - Mode switching control system by terminal - Google Patents

Abstract

PURPOSE:To securely mode-switch an attachement at low cost by processing data from a terminal-side by means of a substitution program when a substitution operation start command is received through a LAN cable. CONSTITUTION:The attachment 6 has the substitution program substituting for the application program of a main body device 1, raises a substitution mode flag when the substitution operation start command is received through the LAN cable 2, and processes data from the terminal-side by the substitution program under a state when the substitution operation mode flag is set. A handy terminal 4 comes to a substitution operation start command transmitting mode by a prescribed key operation, and transmits the substitution operation start command when a data read request from a reader type terminal 3 is received. Thus, the mode switching of the attachement can securely be executed at low cost.

Description

[Detailed Description of the Invention] [Summary] This invention relates to a switching control method for switching the mode of an attachment in a system in which a communication attachment is connected to a main unit and a plurality of terminals via a LAN cable. , the purpose is to perform mode switching of the attachment at low cost and reliably, and the attachment has a substitute program that takes the place of the application program 11 of the main unit, and the attachment can be switched via a LAN cable. When an operation start command is received, a proxy operation mode flag is set, and when the proxy operation mode flag is set, data from the terminal side is processed by a proxy program, and the handy terminal A configuration requirement is that when a predetermined key operation enters the substitute operation start command sending mode, and a data reading request is received from a league type terminal under this mode, the substitute operation start command is sent. There is.

[Industrial application field]

The present invention relates to a communication attachment and a mode-off (negative control method) of an attachment in a system in which a main unit and a plurality of terminals are connected via a LAN cable.

(Prior art) Fig. 8 is a diagram showing an overview of the 1/Stran system.
ocal Area Netinork) cable, 3
is a league type terminal, 4 is a handy terminal, 5 is a printer, 6
indicate communication attachments.

The main body device 1 has an attachment 6 built therein. LAN cable 2 is connected to attachment 6, and +-A
A plurality of league type terminals 3 and a plurality of printers 5 are connected to the N cable 2. Order data from customers is input into the handy terminal 4, and this handy terminal 4 is transferred to the league type terminal 3.
When set on top of the handheld terminal 4, the order data of the handy terminal 4 is transferred to the league type terminal 3, LAN cable 2. It is sent to the main device 1 via the attachment 6.

FIG. 9 is a diagram illustrating attachment modes.

In mode 1, application program A of main unit tl
PI- imports the order data from the handy terminal 4,
It performs appropriate processing and instructs the printer 5 to print the order data. When the main unit fil goes down, mode 2
It is said that In mode 2, the proxy program present in the attachment 6 takes in the order data from the handy terminal 4, performs appropriate processing, and instructs the printer 5 to print the order data.

FIG. 10 is a flowchart of a conventional attachment mode switching procedure.

When the main unit goes down, a request arises to switch the mode of the attachment and perform operations only between the attachment and the terminal. In this case, it is checked whether the attachment is operable or not.

If the attachment is operable, it is checked whether the application program A P i- of the main body device is operable or not, and if it is operable, the mode of the attachment is switched according to a command from the application program. If the application program is not operable, it is checked whether or not there is an external switch for switching the attachment mode, and if there is an external switch, the mode inside the attachment is switched using the external switch.

[Problem to be solved by the invention]

As mentioned above, the mode switching of conventional attachments is
Whether by an external switch or a command, installing a new external switch requires changing the hardware itself, which increases costs. Also, when using a command, when the main body goes down, the attachment mode is turned off (it cannot be defeated).

The present invention was created in view of this point, and in a system having a terminal capable of inputting data to the main unit, mode switching of an attachment having a program processing function built into the main unit is possible. The aim is to do this at low cost and reliably.

[Means to solve the problem]

FIG. 1 is a diagram explaining the principle of the present invention. The system of the present invention includes a main body device t having a built-in communication attachment 6;
A LAN cable 2 connects the attachment 6 and the terminals 3 and 5, and the data sent from the handy terminal 4 is connected to the attachment 6 via the LAN cable 2.
It is equipped with a reader type ◇: 11 end 3 for sending to.

The attachment 6 has a substitute program that takes the place of the application program of the main unit l, and when it receives a substitute operation start command via the LAN cable 2, it sets a substitute operation mode flag. In the standing state, data from the terminal side is processed by a proxy program.

The handy terminal 4 is configured to enter a substitute operation start command sending mode by operating a predetermined key, and to send a substitute operation start command when receiving a data reading request from the league type terminal 3 under this mode. There is.

[Embodiment] FIG. 2 is a diagram showing programs for the main unit and attachments 1 to 1. In the same figure, ■ is the main unit, 2 is the LAN
3 indicates a league type terminal, 4 indicates a handy terminal, 5 indicates a printer, and 6 indicates a communication attachment.

Inside the main unit 1 are application programs, job control programs, and a JCR2 file control program FCP.

Supervisor SPV, LANff1 control device/
There are various types of firmware such as handler DVH. The attachment 6 includes a ROM section and a control program. The control progera J is composed of 1, AN control 2, a proxy program, proxy parameters, and the like. The control progera l is downloaded from the DΔSD to the attachment, for example, when the power is turned on.

FIG. 3 is a flowchart 1 of the processing procedure for changing the attachment mode according to the present invention.

First, by operating keys on the handy terminal, a special processing mode is set for issuing a command for switching the attachment mode. Next, set this handy terminal as a league type terminal.

Upon receiving the “trigger command” from the attachment, the league type terminal reads the data from the handy terminal,
A command for switching the attachment mode is issued from the handy terminal via the league terminal. When this command is received, the attachment will
'2.

As a result, it becomes possible to perform operations only between the attachment and the terminal.

FIG. 4 is a diagram illustrating the operation of starting/cancelling the substitute operation. In the same figure, ENQ3 is Kikkage Command)', 5T
X-0-CR is line open command, 5TX-C1
5-CR is substitute operation start command, 5TX-C16-C
R is the substitute operation end command, OO0-CR is the normal end status, 5TX-3OO-CR is the normal response command,
STX-E-□CR each indicates a line close command.

FIG. 4(a) is a diagram showing a data transfer sequence for starting substitute operation. When the trigger command is sent, the league type terminal sends a line open command to the attachment, and then a substitute operation start command is sent to the attachment.

When the successful completion status is sent from the attachment, a successful response command is sent to the attachment, and then a line close command is sent to the attachment.

FIG. 4(1)) is a diagram showing a data transfer sequence for canceling substitute operation. When the trigger command is sent, the league type terminal sends a line open command and command to the attachment, and then a substitute operation end command is sent to the attachment.

When the successful completion status is sent from the attachment, a successful response command is sent to the attachment, and then a line close command is sent to the attachment.

FIG. 5 is a diagram illustrating the processing of the attachment when a substitute operation start/end command is received.

': When receiving the cloak, check whether the command is C15. In the case of C15, a substitute operation mode flag is set. If not C15, the command is C1
Check whether it is 6 or not. In the case of C16, the substitute operation mode flag is lowered. If it is not C16, it is checked whether it is C13 or not. In case of C13, order data reception processing is performed. When the proxy operation mode flag is on, the order data reception process is performed by the proxy program, and when the proxy operation mode flag is off, the order data reception process is performed by the application program of the main device.

FIG. 6 is a diagram showing an example of the /S-doware configuration of the attachment, and FIG. 5 is a diagram showing the access space of the MPU of the attachment. In the figure, 10 is a microprocessor (MPU), 11 is a microprocessor, 12 is a ROM,
13 is a tie"?, 14 is a DMA controller, 15 is a line control unit, 16 is a dry nozzle/receiver, 17 and 18
19 is a RAM, 20 is also a RAM, AB is an address number λ, DB is a write data number, and *RDT is a read data number.

The ROM 12 stores a program for downloading a control program, a program for self-diagnosing the attachment, a programmer J for dumping, and the like. The line control section 15 is connected to the I, 8pJ)y--pull 2 via the F'Liha/Resino\16. RAML8 and RAM20 constitute a backup RAM, and the contents of these RAMs 18 and 20 are guaranteed even if the power to the main unit is turned off. RAM 20 is shared by microprocessor 10 and main unit 1 . The substitute program is RAM1B
It is downloaded and rolled.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, even if the main unit goes down, the mode of the attachment can be switched as long as the program in the attachment can be operated.

This is effective in increasing the reliability of the main body. It is also cost effective in that it does not require any changes to the hardware of the existing system.

[Brief explanation of drawings]

FIG. 1 is a diagram illustrating the principle of the present invention, FIG. 2 is a diagram showing the main unit and the program of ACUNCIME 1-, FIG. Figure 4 shows the data transfer sequence for starting/cancelling the substitute operation, Figure 5 shows the processing within the attachment when the command to start/end the substitute operation is received, and Figure 6 shows the attachment's bar dot, FIG. 7 is a diagram showing an access space of the MPU of attachment 1-, FIG. 8 is a diagram showing an overview of the restaurant system, FIG. 9M is a diagram showing attachment modes, and FIG. FIG. 2 is a diagram showing a flowchart of a conventional process procedure for switching modes of an attachment. 1...Main device, 2...LAN cable, 3.
...Reader type terminal, 4...Handy terminal, 5...Printer, 6...Communication attachment.

Claims (1)

[Claims] Main unit (1) with built-in communication attachment (6)
and a LAN connecting the attachment (6) and the terminals (3, 5)
It is equipped with a cable (2), a handy terminal (4), and a reader type terminal (3) for sending data sent from the handy terminal (4) to the attachment (6) via the LAN cable (2). The attachment (6) has a proxy program that replaces the application program of the main unit (1), and sets a proxy operation mode flag when it receives a proxy operation start command via the LAN cable (2). When the substitute operation mode flag is set, the data from the terminal side is processed by the substitute program, and the handy terminal (4) enters the substitute operation start command sending mode by operating a predetermined key. A mode switching control method by a terminal, characterized in that the terminal is configured to send a substitute operation start command when a data reading request is received from the reader type terminal (3) under the mode.