JPH05100761A - Batch stopping and starting circuit for controller - Google Patents

Abstract

PURPOSE:To prevent the timing deviation from generating at the stopping and starting between plural controllers when plural controllers are performed the batch stopping and starting in the diagnostic and evaluating function of an electronic computer. CONSTITUTION:At a diagnostic device 3 side, a drive circuit 301 to drive a signal for the batch stopping and starting is held, and at respective controllers 1 and 2, a receiving circuit to receive a signal for the batch stopping and starting and a control circuit 201 to perform the stopping and starting by the signal for the batch stopping and starting are held, and by controlling a signal to perform the batch stopping and starting from an external part at the time of the diagnosis and evaluation, the controller is stopped and started in batch.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diagnosis / evaluation function of an electronic computer, and more particularly to a diagnosis function in evaluation of communication processing between control devices.

[0002]

2. Description of the Related Art Conventionally, this type of control device does not have a batch stop and start circuit.
At the time of start-up, it was realized by individually issuing a command to each control device.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
Since the start-up is controlled individually, there is a drawback in that there is a time lag in stoppage and start-up timing between each device.

An object of the present invention is to provide a batch stop / start circuit for a control device which prevents a time lag between stop / start timings between the respective devices.

[0005]

In order to achieve the above object, a collective stop / start circuit of a control device according to the present invention is a computer having a diagnostic device and a plurality of control devices. It has a drive circuit that drives signals for stop and start,
It has a receiving circuit for receiving a signal for starting, and a control circuit for carrying out batch stop and stop and start by a signal for starting.

[0006]

The control device is collectively stopped and activated by externally controlling a signal for collective stop and activation at the time of diagnosis / evaluation.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In this block diagram, those not necessary for explaining the present invention have been omitted.

In the figure, 1 is a control device, and 2 is a control device, which is connected to the control device 1 through a system bus 101.

The control device 1 and the control device 2 have an operation clock, stop the operation when the operation clock is stopped, and operate when the operation clock is moving.

Reference numeral 3 is a diagnostic device, and reference numeral 102 is a signal for batch stop and start, which connects the control device 1, the control device 2 and the diagnostic device 3.

Inside the diagnostic device 3, a drive circuit 301 for driving the signal 102 to "1" or "0" and a control circuit 30 for controlling the drive circuit 301 according to an instruction from the outside.
With 2.

The control unit 1 and the control unit 2 are provided with a signal 10
When 2 is '0', the operation clock of the device is stopped,
When it is "1", it has an operation control circuit 201 for driving the operation clock of the device.

Now, when communication is performed between the control device 1 and the control device 2 through the system bus 101, if it is desired to stop the temporary operation during the communication operation for the purpose of evaluation, it is connected to the diagnostic device 3. Diagnostic device 3 from the external input device
When the control circuit 302 therein is instructed to set the signal 102 to “0”, the control circuit 302 controls the driving circuit 301 and sets the signal 102 to “0”.

The control device 1 and the control device 2 receive the signal 102.
Becomes "0", the internal operation control circuit 201
Stops the operation clock, and the control devices 1 and 2 stop.

When the operation is restarted, the external input device again instructs the control circuit 302 in the diagnostic device 3 to set the signal 102 to "1" so that the signal 102
To '1'.

The control device 1 and the control device 2 receive the signal 102.
Becomes "1", the internal operation control circuit 20
1 drives the operation clock, and the control device 1 and the control device 2
And resume operation.

[0018]

As described above, according to the present invention, a plurality of control devices can be collectively stopped and driven by having a signal for stopping and driving the control devices.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1 Control Device 2 Control Device 3 Diagnostic Device 101 System Bus 102 Stop / Start Signal 201 Operation Control Circuit 301 Drive Circuit 302 Control Circuit

Claims (1)

[Claims] 1. An electronic computer having a diagnostic device and a plurality of control devices, wherein the diagnostic device has a drive circuit for driving a signal for collective stop and start, and each controller has a collective stop, A batch stop / start circuit for a control device, comprising: a receiving circuit for receiving a signal for starting, and a control circuit for collectively stopping and starting and stopping by a signal for starting.