JPS60252963A - State supervisory controlling system - Google Patents

Abstract

PURPOSE:To set combination of supervised signals and designation of output controlling signals freely and better supervisory function by storing designation of controlling signals for supervision. CONSTITUTION:A supervised signal AC is supplied to the address register 11 for reading of a storing device 10 and reads out a controlling signal for supervision stored in the storing device 10. A history memory 15 stores the state of required signals inputted from a signal line 16 every cycle and holds the state of the latest several cycles at all times. A register 21 can be set from outside, and compared with the value of a counting circuit 20 in a comparator circuit 22, and a coincidence signal 23 is outputted. A gate (clock control) 24 is controlled by the coincidence signal 23, and clock signals are controlled. Thus, operation of necessary circuit can be stopped when events that gives controlling output O1 (combination of state of signals A-C) occurred number of times designated by set value of the register 21.

Description

DETAILED DESCRIPTION OF THE INVENTION fa) Industrial Application Field The present invention relates to electronic devices such as information processing devices, and particularly to a control method for monitoring the internal operating state of such devices.

Central processing units and other components that make up electronic computer systems,
In electronic devices with relatively complex configurations, there are ways to monitor their internal operations, detect abnormal conditions at appropriate timing, and promptly collect information related to the abnormalities. is important to improve availability.

The present invention relates to a supervisory control system that is effective as such a means.

fblPrior Art As the above-mentioned monitoring function, in the conventional device,
Each main part is equipped with an individual abnormality monitoring circuit, and also has a function to record the state of the monitored signal for a predetermined period, a function to stop operation at a specified program address, a function to read the internal state at that time, or a function to read the internal state at that time. It has a function to advance one step at a time.

Problems to be solved by the tc+ invention Generally, those conventional monitoring functions are provided with a fixed monitoring function for a monitored signal or a combination of monitored signals, etc., which is determined at the time of designing the monitored device. . However, as the device configuration becomes more complex, the number of internal signal combinations becomes enormous, and it is common to experience that an abnormal state occurs in a particular combination of the signals.

In order to capture such events, a function is required to specify a particular state of a particular combination of monitored signals and generate a certain signal. Furthermore, depending on the state captured as a result, it may be necessary to further change the combination of monitored signals for monitoring. However, in the past, there was no means to freely set the conditions of the monitored signal in this way.

The present invention provides a supervisory control method with a large degree of freedom in setting combination conditions of monitored signals and in setting signals to be generated under predetermined signal conditions. This is to improve the problem.

TD1 Means for Solving Problems This purpose is to provide a storage device, a means for configuring an address signal based on a monitored signal in the electronic device, and a means for configuring an address signal from the address signal of the storage device when monitoring the operating state of an electronic device. This is achieved by the state monitoring control system of the present invention, which has means for reading the stored content at a designated location and means for generating a control signal based on the stored content.

[fl) Effect: In general, a storage device is provided that can access a combination of a plurality of monitored signals as an address, and the stored contents of the address include information that needs to occur in a specific state corresponding to the address of the monitored signal. , the designation of control signals for monitoring can be stored. Therefore, by rewriting this stored content, conditions can be freely set for all combinations of monitored signals.

(fl Embodiment FIG. 1 is a block diagram showing an embodiment of the present invention. For the sake of explanation, the figure assumes that there are three signals to be monitored, A, B, and C, and two signals are monitored depending on the state. The control signal output can be specified as 0° or 01.

Monitored signals A, B, and C are connected to a reading address register 11 of the storage device 10, and are set in the address register 11 for each operation cycle of this device to control reading of the storage device 10.

In this example, the storage device 10 consists of 8 words, each word having 0, 0, . The two bits corresponding to the data are stored and read into the read data register 18.

The control output O0 is used, for example, via the signal line 12, the gate 13, and the signal line 14 to stop the memory update of the history records 11!15.

The history memory 15 stores the state of the required signal input from the signal line 16 every cycle, and is used for fault searching etc. by always holding the state of the last few cycles. If 14 is specified as ON, subsequent updates are stopped, and the state from that time until several cycles ago is saved.

The signal line 17 is connected to a manual switch, for example, and is used to control activation of the control output 0°.

Control output 01 is connected to, for example, a counting circuit 20 and used to count the number of times O3 appears.

A count value can be externally set in the register 21, and a comparison circuit 22 compares it with the value of the counting circuit 20 to output a coincidence signal 23. The coincidence signal 23 controls, for example, a gate 24 to generate a clock signal. If controlled, the control output will be 0. The operation of a required circuit can be stopped when an event (a combination of states of signals A, B, and C) that generates occurs the number of times specified by the setting value of the register 21.

FIG. 2 shows 0°, 0..
In FIG. 2(a), Oo corresponds to signal A, and 0. When the signal A is 1° and B=C, the output is 1°. (b) is another example in which 0° is the same as 01 of (al), and 01 detects signal B=C regardless of signal A.

The storage device 10 stores an address in a write address register 30 and data (0°, 0,
) and enable the write designation signal 32 to enable the memory contents to be updated. For example, after setting and investigating as shown in figure 2), write the memory device WlO as shown in figure 2(b). You can proceed with the investigation by rewriting it as follows.

The number of output signals (0°, or) and the functions of the controlled circuit based on the signals in the above description are an example of the dynamic nature of the present invention, and are not limited thereto. For example, the configuration of the present invention can also be used to detect a combination of states that should not appear in normal operation as a combination of monitored signals, and to generate a control signal output to start a required process. Can be done.

1g) Effects of the Invention As is clear from the above description, according to the present invention, the availability of electronic devices is improved by improving the monitoring function by freely setting the combination of monitored signals and designation of output control signals. This has a significant industrial effect.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of specifying an output control signal. In the figure, 10 is a storage device, 11 is a read address register, and 18 is a read data register. Brown 1 eye 1 grass 2 colors

Claims (1)

[Claims] When monitoring the operating state of an electronic device, a storage device, a means for configuring an address signal based on a monitored signal in the electronic device, a means for reading the stored contents of a position specified by the address signal in the storage device, and A state monitoring control system characterized by having means for generating a control signal depending on stored contents.