JPS59195120A - Control device of recording of control bit signal by pen oscillograph - Google Patents

Abstract

PURPOSE:To record many control bit signals on one oscillogram and to form a highly accurate oscillogram by allowing plural control bit signals each of which is assigned to one channel and one amplifier in a pen oscillograph to be recorded in the oscillogram. CONSTITUTION:A program detecting a changing state when a changed point of time is detected, a program outputting a plus level analog signal corresponding to a control bit signal factor when a specific control bit signal to be observed is changed and the changed state is significant, and a program outputting a minus level analog signal corresponding to the control bit signal factor when the changed state is insignificant are prepared. When a signal is changed, a rectangular wave with a level corresponding to the factor of the signal and the changed state is generated and an oscillograph records the wave. Thus, plural control bit signals each of which is assigned to one channel and one amplifier of the oscillograph are recorded, so that a highly accurate pen oscillogram can be obtained with time series.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pen oscillographic representation control device for control bit signals for observing the control state of a digital controller in time series.

A conventional notation device of this type is shown in FIG.

In the figure, 1 is a digital controller;
a is a program that performs various calculations, and 1e is a program that determines the control bit signal that you want to observe among the various control bit signals (usually called FLAG) used in program 1a that performs various calculations. , 1b is a program that outputs level 1 when the control bit signal is significant, lc is a program that outputs level 2 when the control bit signal is invalid, and D and ld are amplifiers that output these levels 1 and 2 as voltages. It is. 2 is a pen oscillograph that records the output signal of the amplifier 1d, and 3 is a pen oscillograph 2.
is a pen oscillographic notation device in which 3a indicates a notation state corresponding to level 1, and 3b indicates a notation state equivalent to level 2.

Next, the operation will be explained.

Among the various control bit signals used in the various calculation programs 1a, the state of the specific control bit signal that you want to observe is determined in 1e, and when it is significant, the program 1b outputs level 1 as an analog signal. At this time, the program IC that outputs level 2 as an analog signal is activated, and the amplifier 1d outputs it as a voltage output signal.

The voltage output signal from the amplifier 1d is input to the pen oscilloscope 2, and as a result, level 1 (3a) and level 2 (3b) are written on the pen oscilloscope notation device 3.

Since the conventional pen oscillograph display control device of this type is configured as described above, the pen oscillograph 2 is
One control bit signal can be observed with one channel and one amplifier.
The number of observation points was limited to the number of channels of pen oscilloscope 2, and there was a drawback that a large number of state signals could not be expressed in time series.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and it detects the change point of the control bit signal and adjusts the level output according to the cause and direction of change of the control bit signal when the control bit signal changes. It is an object of the present invention to provide a pen oscilloscope representation control device for control bit signals, which allows observation of change states of a plurality of control bit signals with one pen oscilloscope channel and one amplifier point by outputting only the control bit signal to an amplifier. It is said that

Hereinafter, an embodiment of the present invention will be described with reference to FIG. 2, in which three control bit signals are output for one channel of a pen oscilloscope.

In FIG. 2, 1 is a digital controller, 1a is a program that performs various calculations, and 1f is a specific control bit to be observed among various control bit signals used in the program 1a that performs various calculations. This is a program that detects the time point of signal change. 1g is a program that detects the state of change (significant → non-significant or non-significant → significant) when the time of change is detected. A program that outputs analog e level corresponding to the control bit signal factor when the state changes and the state after the change is significant.On the other hand, 11 is the opposite of this program 1h, and when the state after the change is insignificant. This is a program that outputs analog θ levels corresponding to control bit signal factors, and 1j is a program that detects whether or not all three control bit signals have been changed or not in program 1f. be. Also, 1 is a program that sets the analog output to 0. Furthermore, 1d is program l
h, li, an amplifier that outputs an analog output as a voltage, 2
3 is a pen oscillographic notation device in which the output signal of the amplifier 1d is inputted and recorded by the pen oscilloscope 2. 3c is a pen oscillographic notation device in which the output signal of the amplifier 1d is inputted, and 3c is the one when the control bit signal (X=O) changes significantly. In the notation, 3d below is a control bit signal (x = 1), 3e is a control dead signal ('x = 2
) corresponds to

In addition, 3f is the notation when the control bit signal (X=O) changes unexpectedly, and 3g is the notation when the control bit signal (X=O) changes unexpectedly.
), 3h correspond to the control bit signal (X=2)K.

Next, the operation will be explained.

In program 1a, which performs various calculations, the control bit signal to be observed is temporarily assigned to three indexes
For x='o, x=1. Let there be 3 points with x=2.

First, after various calculations are performed in the program 1a, the index X becomes X=O, and the control bit signal (X=O)
Detection of changes in is performed in program 1f, and if there is no change, x = 1, and program IJ determines whether changes have been detected for all three points of the control bit signal. Go back and do the same thing for the sequential control bit signal (X=1.x-2),
If all three points of the control bit signal have not changed, the program 1k sets the analog output to 0 and returns to the various calculation programs 1a. This analog output fQI is a zero voltage output signal from the amplifier 1d, and the pen oscilloscope 2 records it on the zero line of the pen oscilloscope writing device 3.

Next, the operation when the control bit signal (x=1) changes from unexpected to significant will be explained.

When the index X is x-1, the control bit signal (x=
In 1), the presence of a change is detected in the program 1f, the state after the change is determined in the next program 1g, the level (x=1) in the program 111 is output as an analog, and the various calculation programs 1a are again output. Return to The e level (x=1) of the analog output is output as a stain pressure by the amplifier 1d, and the pen oscillograph 2 records it on the level of the pen oscillograph notation device 30 notation 3d. After that, if the control bit signal changes frequently, the analog output will be 101 as described above.
Then, the recording returns to the zero line of the pen oscillograph writing device 3. In other words, a rectangular wave corresponding to one cycle of the calculation of the digital controller is generated.

Next, the operation when the control bit signal (x=0) changes from insignificant to significant and the control bit signal (x=1) changes from significant to insignificant at the same timing will be described.

When the index X is x=0, the control bit signal (x=0
), the presence of a change is detected in program 1f, the state after the change is determined in program 1g, the level (x=0) in program lh is output as an analog, and the various calculation programs 1a <, Z . The e level (X=O) of the analog output is output as a voltage output signal from the amplifier 1d, and the pen oscilloscope 2 records it on the level of the pen oscillographic notation device 30 notation 3C. After executing various arithmetic programs la, program 1f detects whether the control bit signal (x=1) has changed 9, program 1g breaks the state after the change, and program 11 then proceeds to e level (x =1) is output as an analog output, and the process returns to the various calculation programs 1a again. The e level (x=1j) of the analog output is output as a voltage output signal from the amplifier ld, and the pen oscilloscope 2 performs recording above the level of the pen oscilloscope notation device 30 notation 3g.

As described above, if there is a change in the signal, a rectangular wave is generated at a level corresponding to the cause of the signal and the state of change, and the rectangular wave is displayed on the oscillographic display device 3.

In the above embodiment, the analog output is switched between 1 and 2 depending on the change state of the signal, but it is also possible to switch the analog output to 2 or 3, and the same effect as in the above embodiment can be obtained.

Further, although the control bit signal was checked using the index X, it is clear that the same effect can be achieved even in the case of random writing.

As described above, according to the pen oscillographic notation control device for control bit signals of the present invention, one
'Since it is configured so that more than one control bit signal per channel or amplifier can be written, the marking device can be made inexpensive, and since a large number of control bit signals can be written on one oscillographic marking device, This has the effect of providing a highly accurate pen oscilloscope in time series.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional pen oscillographic notation control device for control bit signals. FIG. 2 is a block diagram of a pen oscilloscope display control device for control bit signals according to an embodiment of the present invention. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. DESCRIPTION OF SYMBOLS 1...Digital controller, 2...Pen oscillograph, 3...Pen oscillograph notation device, Ia,
lf, Ig, 1hali, lj, 1k-=program, 1d... Amplifier agent Masuo Oiwa Figure 1 procedural amendment (voluntary) 2. Name of the invention Pen oscillographic notation control device for control bit signals 3. Correction Representative Hitoshi Katayama Department 4, Agent 5, Subject of amendment (1) Column for detailed explanation of the invention in the specification (2) Column for brief explanation of drawings in the specification (31 drawings 6, Contents of amendment (1) Lines 13 to 14 of page 2 of the specification, line 6 of page 3, line 8 of page 5, line 5 of page 7, line 2 of page 8
"Notation device" in line 11 of page 8, line 15 of page 8, line 9 of page 9, and line 1 of page 10 is replaced with "
Correct it to "paper". (2) On page 6, line 5 of the specification, it says "x=1," which is incremented to k r x = x +1.
Correct it as j. (3) From page 9, line 20 to page 10, line 1 of the specification, “2... pen oscilloscope” is replaced with “2...
"Pen oscilloscope" is corrected. (4) Correct Figure 2 as shown in the attached sheet. 7. One or more 'fc documents' with the revised list of attached documents listed in Figure 2

Claims (1)

[Claims] Control Bit Signal Q In a pen oscillographic notation control device for representing a significant or unintentional state in a time series on a pen oscilloscope, the control bit signal Q changes each state from a significant to an unintentional state or from an unintentional state to a significant state. A control bit signal pen oscilloscope characterized in that the pen oscilloscope captures the change point, changes the analog output level in accordance with the type of the control bit signal and the direction of the state change, and supplies a pulsed output signal. Graph notation control device.