JPS6390246A - Remote communication method between external input/ output devices - Google Patents

Abstract

PURPOSE:To facilitate judging a required time by successively displaying conditions of the total data volume of data to be transmitted and the data volume of transmitted and received data on a CRT screen in the reception side or CRTs in both of the reception side and the transmission side. CONSTITUTION:Communication is performed while successively displaying conditions of the total data volume of data to be transmitted from the transmission side and the data volume of current received data on the CRT screen of the reception side based on the signal from the transmission side till the end of transmission. Since the total data volume of data to be transmitted is obtained in the reception side or both the reception and the transmission side at the time of transmission start and the data volume of already transmitted data or the data volume of data to be transmitted and left untransmitted is successively displayed on the CRT screen in case of data transmission between external input/output devices, the time required for completion of data transmission is easily judged.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for telecommunications, in particular to several layers of a method for telecommunications over public communication lines between external input/output devices comprising a CRT.

[Prior Art] Data is transmitted between computers or terminal devices by converting a digital signal from the computer or terminal device into two types of sounds using an acoustic coupler, feeding them to the handset of a telephone, and transmitting them as radio waves over a telephone line. And conversely, the radio waves transmitted through the telephone line are received as sound from the handset,
Communication via a public communication line using an acoustic coupler is known, in which this signal is converted into a signal inside the computer and then input.

For example, if a problem occurs while the programming controller is operating, in order to troubleshoot the program, you can use a peripheral device to download the program to a ROM, cassette tape, or floppy disk, and then transfer the program data to a B. It is transmitted to the designer via a public communication line using a W coupler.

[Problems to be solved by the invention] However, in this communication method, on the receiving side,
Since the total amount of data sent from the sending side cannot be determined, and the amount of remaining data cannot be determined during transmission, it is not possible to determine how much additional transmission time is required.

Therefore, once the transmission has started, there is a problem in that the receiving side cannot recognize when the transmission has ended unless it is careful and waits until the end of the transmission.

The present invention has been made in view of the above-mentioned problems, and its purpose is to provide an external input device that can transmit data while easily recognizing the total amount of data being sent and received and the status of the current amount of data being sent and received. An object of the present invention is to provide a remote communication method between output devices.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides data transmission between external input/output devices equipped with a CRT, based on a signal from the transmitting side, on the CRT screen of the receiving side. The system is characterized in that communication is performed while sequentially displaying the status of the total amount of data sent from the sending side and the amount of data currently being received until the end of the transmission.

In addition, in remote data transmission between external input and output devices equipped with a CRT, the total amount of data sent from the transmitting side and the status of the currently received data are transmitted and received on the CRT screen of the receiving side. The communication is performed while sequentially displaying the total amount of data to be transmitted and the status of the currently transmitted data m on the CRT screen of the external input/output device on the sending side until the end of the transmission.

[Operation] According to the above configuration, when transmitting data between external input/output devices, the receiving side, or both the receiving side and the transmitting side, can know the total amount of data to be sent at the time of starting transmission. Furthermore, the amount of data that has been sent or the amount of remaining unsent data to be sent is displayed on the CRT screen sequentially until the end of transmission and reception, making it easy to judge the time required to complete data transmission. Can be done.

[Embodiment] FIGS. 1 and 2 are explanatory diagrams showing a preferred embodiment of the remote communication method between external input/output devices according to the present invention, and FIG. 1 illustrates the present invention as a program controller peripheral device. An example is shown in which a sequence program is transmitted from one programming device to another programming device for troubleshooting or the like.

In the figure, (1) is the receiving side programming device, which is the CPU (
2), control ROM (3), control RAM (4), C
RT controller (5), CRT (6), keyboard controller (7), keyboard (8), FDD controller (9), FD (10), 310 for acoustic coupler (serial input/output interface) (11), programmable controller 810 (12).

(18) is a transmitting side programming device, which has the same configuration as the receiving side programming device (1), and similar elements are designated by the same reference numerals. (13), (
17) is an acoustic coupler, (14) and (16) are telephones, (
15) is a public communication line for data transmission.

The operation of the present invention is such that when it becomes necessary to transmit a sequence program from a user to, for example, a designer of a sequence circuit for troubleshooting purposes, on the transmitting side, a programming device (18) transmits a sequence program from a programmable controller (19). Absorb the contents and save the contents to the FD (
10). Then, the sender uses the telephone (16) to contact the destination (receiver). The sender and the receiver place their respective programming devices (18) and (1) on the side of their telephones (16) and (14), respectively;
The recipient is on the keyboard (8) of the programming device (1)
Set the receiver to receive mode using the , and place the handset of the telephone (14) on the acoustic coupler (13). The sender uses the keyboard (8) of the programming device (18) to read the FD (10) on which the sequence program sucked from the programmable controller (19) is written, using the FDD controller (9), and then presses the keyboard of the device (18). (8)
Set the receiver to transmit mode using the m8 and connect the handset of the telephone (16) to the acoustic coupler (17). Then, the user operates the keyboard (8) to start transmission.

When transmission starts, first, the total data signal to be transmitted is sent, and the receiving programming device (1) converts this device into a CRT display signal, and displays the total data on the screen of the CRT (6). Display amount.

Further, in another invention, the total data interval is also displayed on the CRT (6) of the sending side programming device 12 (18) at the same time.

For example, if the total amount of data is 30 bytes, 30,000 is displayed as shown in FIG.

Then, as the transmission is performed, a signal indicating the amount of transmitted data or the remaining unsent data R is sequentially sent from the sending side programming device i (18) to the receiving side programming device (1). Turn to the CRT (6), and below the display of 30,000 on the screen, a number (25,993 on the diagram) indicating the amount of remaining unsent data is displayed. In this case, the data m is displayed in a subtractive manner, and when the display becomes O, the transmission is completed.

Also, there is a method of displaying the transmission flow data below the display of 30000, that is, increasing the display sequentially from O to 3000.
It is also possible to complete the transmission when the value becomes 0.

Figures 3 and 4 each show other display formats for converting data into transmission data. In Figure 3, the * symbol for the total amount of data to be transmitted and received is displayed, and as the transmission progresses, This is a display method that changes to a sign display.

Further, FIG. 4 shows a method in which the total data m is displayed in a band shape, and the band shape display becomes shorter as it is transmitted.

In this case, by leaving the outer frame of the band-like display as shown by the dotted line in the figure. It is possible to easily determine the proportion of transmitted data or untransmitted data to the total data m.

In the case of Haku's invention, the status display of the transmission data m is simultaneously displayed not only on the receiving side CRT (6) but also on the transmitting side CRT screen, and data transmission is performed.

As a result, the operator on the receiving side, or the operators on both the receiving and transmitting sides, can know the total amount of data to be sent and received at the start of sending and receiving. You can easily know the rate of change.

[Effect of the invention 1] As explained above, in remote data transmission between external input/output devices, the total data M to be transmitted and the data being transmitted are displayed on the CRT screen of the receiving side or the CRT screens of both the receiving side and the transmitting side. By sequentially displaying the status of the transmitted and received data a, the operator can easily predict the transmission end time at the start of transmission and judge the time required until the end of transmission during the transmission.

This eliminates the need to constantly watch the CRT screen from the start of transmission until the end of transmission without being able to predict when the transmission will end, thereby improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram for explaining a preferred embodiment of the present invention and other inventions, and FIGS. 2, 3, and 4 are diagrams showing an embodiment of a CRT screen display format. (1) is a receiving side programming device, (6) is a CRT,
<13), (17) are acoustic couplers, (14), (16)
is a telephone, (15) is a public communication line, (18) is a sending side programming device, and (19) is a programmable controller.

Claims (2)

[Claims] (1) In a remote communication method between external input/output devices in which data is communicated between external input/output devices equipped with a CRT using a public communication line via an acoustic coupler, the total amount of data transmitted from the transmitting side and the transmission A signal indicating the amount of data that has been sent or the amount of unsent data is sent to the receiving side, and the receiving side converts these data amount signals into CRT display signals, which are then sent from the sending side to the receiving side's CRT screen. A remote communication method between external input/output devices that performs communication while sequentially displaying the status of the total amount of data and the amount of data currently being received until the transmission/reception is completed. (2) In a remote communication method between external input/output devices in which data is communicated between external input/output devices equipped with a CRT using a public communication line via an acoustic coupler, the total amount of data transmitted from the transmitting side and the transmission The amount of transmitted data or the signal between the untransmitted data is transmitted to the receiving side, and the receiving side converts these data amount signals into CRT display signals, and displays the total amount sent from the transmitting side on the receiving side's CRT screen. The status of the amount of data and the amount of data currently being received is displayed sequentially until the transmission/reception is completed, and the status of the total amount of data to be transmitted and the amount of currently transmitted data is displayed on the CRT screen of the external input/output device on the sending side. A remote communication method between external input/output devices that performs communication while displaying sequentially until the transmission is completed.