JPS59127130A - Power supply controlling system of electronic computer - Google Patents

Abstract

PURPOSE:To allow easily a titled computer to correspond to various types of operations including an unmanned operation, a remote operation, etc. by providing a display element which identifies an indicator for application of a power supply and reading the state of the display element from a program. CONSTITUTION:A power supply controlling part 13 performs turning-on or -off of a power supply part 14 of a device with an indication given from a remote terminal device connected via a communication circuit 20 or a switch timer part 12 of a panel part 11 provided to a central processing unit 10. The part 13 includes the panel part 11, the timer part 12 and a display element which identifies the indicator for application of each power supply of the circuit 20. The said indicator is identified by reading the state of the display element through a program executing part 15. Then the necessity for access to a console and the console to which the access should be given are discriminated. This system attains the unmanned and remote operations of a device.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a system for instructing power-on of a computer from a plurality of locations.

[Prior art]

In an electronic computer, power can generally be turned on by a switch on a panel provided on the device, a timer, a trigger signal from a line, or the like. However, in the past, even if the power was turned on by one of these instructions, it was not possible to identify the source of the instruction, which caused the problem that it was not possible to adequately cope with the various operating modes of electronic computers. For example, the processing after the power is turned on usually differs depending on the instruction source as follows.

(1) If the power is turned on from the switch on the panel,
When the program is completed after the power is turned on, messages are output to the console on the device side and inquiries about command input are made.

(2) If the power is turned on via a line from a remote terminal device, etc., after the program loading is completed, a message is output to the power-on instruction light via the line, and an inquiry is made for command input.

(3) When the power is turned on by the timer, since it is an unmanned operation, no message output or command input inquiries are made.

However, in the past, there was no means for identifying the power-on instruction light, so these processes could not be automatically distinguished and executed.

[Purpose of the invention]

In order to solve the above-mentioned conventional problems, the present invention provides an indicator for identifying the power-on instruction light, and allows the state of the indicator to be read by a program, thereby easily adapting to various operating modes of electronic computers. It allows you to deal with it.

[Embodiments of the invention]

FIG. 1 shows an overall configuration diagram of an electronic computer to which the present invention is applied. In FIG. 1, 10 is a central processing unit, which includes a panel section 11, a timer section 12, a power supply control section 13, and a power supply section 14.
and a program execution unit 15. Further, the central processing unit 10 is connected to a remote terminal device or the like via a modem 21 and a communication line.

Here, the power supply control section 13 is the central part of the present invention, and receives instructions from a switch on the panel section 11 provided in the central processing unit 10, a timer section 12, or a remote terminal device connected via a communication line. This turns on or off the device power supply section 14. The power control section 13 is equipped with an indicator that identifies each power-on instruction light of the panel section 11, timer section 12, and line connection, and by the program execution section 15 reading the status of the indicator, Each performs different processing.

FIG. 2 shows an embodiment of the power supply control section 13. In Figure 2,
31 is a power-on instruction signal line from the panel section 11, 32 is a power-on instruction signal line from the timer section 12, and 33 is a power-on instruction signal line from the line connection. flip flop 3B
, 39, , and io are connected to set input terminals S.

Flip-flops 38, 39, and 40 are indicators that indicate power-on instruction lights, and indicate whether or not a power-on instruction has been received from the panel section 11, timer section 12, and timer section 1f332f, respectively. A is a power-off instruction signal line, which is connected to the reset input terminals R of flip-flops 38 , 39 , and 40 and also connected to the signal inversion input terminals of AND gates 35 , 36 , and 37 via an OR gate 41 . Reference numeral 42 designates an OR gate for ORing the set outputs Q of the flip-flops 38, 39, and 49, 43 a power-on start line, and a shrine a power-off start line.

Next, the operation shown in FIG. 2 will be explained. Normally, the power-off instruction signal line 34 is at a low level. In this state, when a switch on the panel section 11 issues a power-on instruction and the signal line 31 goes high, the flip-flop A is set via the AND gate A. When the flip-flop is set, the OR gate 42 and the power-on starting line 4
3, the power supply unit 14 is activated, and the central processing unit 10 is powered on. Further, the output of the OR gate 42 is passed through the OR gate 41 to the AND gates 35, 36, 3.
7, other power-on instructions are suppressed, and two or more of the flip-flops 7'3B, 39, and 40 are not set.

On the other hand, the states of the flip-flops 3B, 39, and 40 are read by the program execution unit 5, and depending on which flip-flop is set, the program can know the power-on instruction light. When the instruction is issued, the signal line goes high, and the power supply section 14 is disconnected by the power supply disconnect start line 44, and the flip-flops 38, 39, 4
0 is reset. Since the AND gates 35, 36, and 37 are turned off through the OR gate 41 while the signal line is high, the next power-on instruction is inhibited, and when the signal line returns to low, the inhibition is released.

Note that the flip-flops and gates shown in FIG. 2 are constantly supplied with power from an auxiliary power source, and can operate even when the central processing unit is in a power-off state.

Figure 3 shows a flip-flop 38 that indicates a power-on instruction light.
, 39 and 40 show an example of a program flow executed by the program execution unit 15. That is, when the power is turned on, the program execution unit 15 executes 7
The states of lip-flops 38, 39, and 40 are read. And when the flip-flop is set,
Since there is an operator on the equipment side, he accesses the console on the equipment side for message output, command input inquiries, etc. (steps 101 and 102).
). When the flip-flop 39 is in the set state, the power is automatically turned on by the timer and there is no operator present at either the device site or the remote terminal device, so no inquiries regarding message output or command input are made (step 10).
3°104). When the flip-flop 40 is in the set state, there is an operator on the terminal device side via the line, so
By identifying the source of the input instruction via the line for the console of the terminal device and controlling whether access to the console is necessary or not and the distinction of the console to be accessed, it is possible to make the operation of the device unmanned and remotely. can be realized.

In addition, in Figure 3, the operating
Although the system (O8) is assumed, the application of the present invention is not limited thereto, and may be applied to a microprogram that controls hardware operations, a service processor program that implements a maintenance operation function, or the like.

〔Effect of the invention〕

As explained above, according to the present invention, by providing an indicator to identify the source of the power-on instruction and making the status readable from the program, it is possible to identify the presence or absence of an operator, whereabouts, etc. It has the advantage of being easily compatible with a variety of driving modes, such as driving and remote driving.

[Brief explanation of drawings]

Fig. 1 is an overall configuration diagram of an electronic computer to which the present invention is applied, Fig. 2 is a diagram showing an embodiment of the power supply control section which is the center of the present invention in Fig. FIG. 3 is a diagram illustrating an example of a processing flow of a program. 11...Panel section, 12...Timer section, 13.
...Power control unit, 14...Power supply unit, 15...Program execution unit, Addition...Line, 21...Modem,
38, 39.40...Flippu date (indicator for identifying the power-on instruction source). Figure 2

Claims (1)

[Claims] (1) A power source for an electronic computer having a configuration in which power-on instructions can be given from multiple locations, characterized in that an indicator for identifying a power-on instruction light is provided, and the state of the indicator can be read by a program. control method.