JPH01320508A - Control panel with state generation frequency display function - Google Patents

Abstract

PURPOSE:To grasp the generation frequency of a signal unit and to easily perform the analysis of the cause of the generation frequency of the signal unit, etc., by displaying data representing the generation frequency of the signal on the display screen of a control panel with signal data. CONSTITUTION:The signal unit inputted from a sequencer 3 or an external switch 14 is displayed on the display panel 8 of a control panel sequentially at every input of the signal unit. In addition to such display, the designation of a range to analyze and to tabulate the signal unit already inputted and stored is performed by function keys (F1-F3). Next, the number of times of input of the signal unit in a designated range is counted. Based on a counted result, the number of times of reception and the signal unit are displayed on the display panel 8 in sequence of the signal unit with higher reception frequency. In such a way, it is possible to analyze the operating status of the sequencer 3 or a mechanical device 4 and the cause of the generation of abnormality, etc., by an operator or a maintenance engineer.

Description

[Detailed description of the invention] [Industrial application field]

The present invention is connected to an external control device such as a sequencer that controls a mechanical device and, if necessary, to the mechanical device via a signal line, and transmits an operation signal to operate the mechanical device, and an external control device that indicates the status of the mechanical device. This invention relates to an operation panel that receives signals from a computer via the signal line, stores and displays signal data indicating a predetermined signal among the operation signals and external signals in the order of their occurrence, and in particular, displays the signal data along with the signal data. The present invention relates to an operation panel with a state occurrence frequency display function, which has a function of displaying data indicating the frequency of signal occurrence. Note that in the following figures, the same reference numerals indicate the same or corresponding parts.

[Conventional technology]

An example of this type of operation panel is Japanese Patent Application No. 176693/1983, ``Programmable Operation Display,'' which is an earlier application filed by the present applicant. FIG. 7 is a diagram showing the connection relationship between the operation panel and external devices in the present invention and the prior application, and FIG. 6 is a system configuration diagram of the operation panel in the present invention. Next, the conventional technology will be explained using FIGS. 7 and 6. In FIG. 7, 1 is an operation panel, and 3 is an external control device. This external control device W3 is most often a sequencer (programmable controller), but may also be a microcomputer or an electronic device equipped with a microcontroller. However, in the following, for convenience, this external control device 3 will also be abbreviated as sequencer 3. This sequencer 3 controls a mechanical device 4, and is connected to control elements and sensors such as a motor, a solenoid, and an electromagnetic valve (not shown) in the mechanical device 4 via a control cable 5. Here, the mechanical device 4 may be, for example, a machine tool, a constant temperature oven, an office machine, a printing machine, etc. Reference numeral 6 denotes an input/output interface bus, such as a serial interface or bit parallel, which connects the operation panel 1 and the sequencer 3. L (Ll. L2) is an external switch line that directly transmits contact signals, and the contacts of the switch (external switch) on line L1 are mainly provided on the operation panel 1, and the contacts of the switch (external switch) on line L2 are It is provided in the mechanical device 4 as necessary. The operation of each external switch is read by a microcomputer system 7 (FIG. 6) within the operation panel 1, which will be described later. Note that this external switch line L1 mainly contains important signals that must be transmitted from the operation panel 1 to the sequencer 3 even when the function of the interface bus 6 is lost, such as the emergency stop switch 14b and the automatic/manual operation changeover switch, which will be described later in FIG. 14c, and the external switch line L2 is a signal line that transmits signals 2 in the mechanical device 4 unrelated to the sequencer 3, such as signals necessary for production control, to the operation panel 1. Next, in the system configuration diagram of the operation panel l in Fig. 6,
The conventional configuration diagram excludes an alarm clear switch 14k as an external switch 14, which will be described later. Now, 7 is a microcomputer system consisting of a CPU, etc., and is equipped with an input/output board, an address and data bus, an external interface, etc. A display panel 8 is provided with a large number of transparent touch keys TK on its surface, and has the main functions of inputting operation signals to the mechanical device 4 and displaying various display data. This operation signal is transmitted to the microcomputer system 7 by operating the touch key TK of the operation switch (referred to as an image switch) portion of the image displayed on the display screen, as if the image switch in question had been operated. It is input and further sent to the sequencer 3. Further, as the display panel 8, a flat display consisting of an LCD, a plasma display, an EL, etc. is used, and a CRT for boat fishing can also be used, and any display panel that can at least display characters may be used. . 14 (14a=14d-.) are external switches for inputting contact signals each having a predetermined role, separate from the touch keys TK. That is, in this example, 14a is a display control switch individually provided on the operation panel l, and is a switch for inputting a signal for scrolling the display screen of the display panel 8 and a signal for moving the cursor to the microcomputer system 7. be. Further, 14b is the above-mentioned emergency stop switch, which is also individually provided on the operation panel 1, and 14c is the automatic/manual advance changeover switch, and these switches 14b and 14c are used as important operation signals for emergency stop signals and automatic, respectively. /
A manual operation switching signal is directly sent to the sequencer 3 via the external switch line L1. Note that each of these sending signals is read by the microcomputer system 7. Moreover, 14b is various switches provided in the mechanical device 4, and in this example, (a) a switch signal that closes when the machine is in operation;
) A switch signal that closes every time a product is manufactured, (c) A serial or parallel data signal that communicates the failure number each time a failure occurs, (d) A serial or parallel data signal of the tool number and its use. Signals necessary for production management, such as a switch signal to be turned on, which are not directly related to the sequencer 3, are transmitted to the microcomputer system 7 via the external switch line L2. A character generator 11 is used to convert a display code for data to be displayed on the display panel 8 into a display dot pattern. The ROM 12 stores a program for controlling the microcomputer system 7 and fixed display data to be displayed on the display panel 8, which are set by the loader 9 or the like. The RAM 13 stores various variable data, such as microcomputer system control data, image switch operation information, information on signal units (that is, various individual signals) received or input from the sequencer 3 or mechanical device 4, and external switches. This is for storing operation information of No. 14, as well as occurrence frequency data of the signal unit, which will be described later in the present invention. The character generator 11. ROM12.
RAM 13 and display panel 8 are microcomputer system 7
An internal bus 15 consisting of an address bus, a data bus, etc.
connected via. The microcomputer system 7 includes the ROM 12. The various display data in the RAM 13 are combined into a predetermined format, converted into a dot pattern by the character generator 11, and then displayed on the display panel 8.
Display output to. The loader 9 is used to set data to be displayed on the display panel 8 for each signal.
It is connected to a microcomputer system 7 by an interface bus 6 such as a 2C-P parallel bus. Further, a mechanical device 4 is connected to the end of the sequencer 3 via a control cable 5, and the operation of this mechanical device 4 is controlled by the operating procedure (program) of the sequencer 3. The sequencer 3 sends signal units to the microcomputer system 7 via the interface bus 6 in accordance with the status of the mechanical device 4, and conversely, the operation information of the image switches on the display panel 8 is sent to the microcomputer via the interface bus 6. It is sent from the system 7 to the sequencer 3. In this way, the operation panel 1 can store various individual signals (signal units) regarding the mechanical device 4 inputted from the sequencer 3 or the external switch 14 in the order of their input, or display them on the display panel 8. Therefore, it is convenient for the operator to be able to visually check the status of the mechanical device 4 and the contents of the control occurring in the sequencer 3. Furthermore, since this operation panel displays signals in the order in which they occur, it is extremely useful for analyzing the causes of abnormalities based on the occurrence status.

[Problem to be solved by the invention]

However, with this type of operation panel, it is not only necessary to analyze the cause of the signal received at a certain point in time, but it is also necessary to understand the status of work on a monthly or yearly basis. There may be some problems like this. (1) In such machine operations, there is always a work standard that records the occurrence status of abnormal signals on a daily or weekly basis, but the current operation panel only displays signal units in the order in which they occur. Therefore, it is extremely difficult to aggregate and record these signal units, and this is often not done. (2) Operators may change every day or multiple times;
Even when it is desired to investigate the occurrence status of each signal for each operator, it is similarly difficult to compile and record the information. (3) This kind of operator panel is not only used by the operator, but also by people who perform maintenance or instruct the operator, but it is also used for checking the occurrence of signal units. If only the order is displayed, it is difficult to grasp information such as what kind of signal unit is occurring and how many times. If this information could be grasped, for example, since each operator has a unique operating style, it would be possible to accurately grasp the occurrence of abnormal signals for each operation sound, and to correct the error in operation for that operator. It is possible to accurately check and provide instructions on how to use the computer and how to operate it. (4) If it is possible to see not only the order in which signal units occur, but also the frequency of occurrence of each signal unit as a whole, it is possible to know which signal units occur most frequently. Since it is possible to grasp defects in the entire system, it is possible to review the system configuration and operation method. (5) Since it is not possible to grasp the frequency of occurrence of signal units, it is not possible to grasp the trend of occurrence of signal units, and it is impossible to judge whether the occurrence of signal units is increasing due to the wear and tear of the mechanical device 4, etc. Therefore, an object of the present invention is to provide an operation panel that not only displays the signal units received from the sequencer 3 or the mechanical device 4 in the order of reception, but also counts the number of times the signals have been received and displays them in order of the number of receptions. This makes it easier to perform signal-by-signal generation analysis.

[Means to solve the problem]

In order to solve the above problems, the operation panel of the present invention has r
A control device (sequencer 3, etc.) that controls mechanical devices (4, etc.)
etc.) and, if necessary, the mechanical equipment and signal lines (interface bus 6, external switch lines L (Ll, L2)
) etc.), the operation panel (1 etc.) is equipped with a display surface (on the display panel 8 etc.) for displaying characters etc. (touch key TK, emergency stop switch 14b, etc.).
An operation signal for operating the mechanical device (input from the automatic/manual operation changeover switch 14c, etc.) is sent to the control device via the signal line (interface bus 6, external switch line L1, etc.), and Receives a signal indicating a state (hereinafter referred to as an external signal) from the control device and the mechanical device via the signal line (interface bus 6° external switch line L2, etc.), and receives a predetermined one of the operation signal or the external signal. Data indicating each of the various signals (alarm code 02, etc., hereinafter referred to as signal data) is stored in the order of their occurrence (RAM1
3, etc.) and the operation panel that displays it on the display screen (via the microcomputer system 7, character generator 11, ROM 12, etc.), displays the number of occurrences (occurrence frequency 03, etc.) for each signal data.
(microcomputer system 7, RAM 1)
3, etc.); means for displaying the signal data and the number of occurrences of the data on the display screen in order of the number of occurrences (reception frequency display switch 14al; function keys F1 to F3; microcomputer system 7;
ROM 12, etc.).

[For use]

The present invention not only displays signal units input from a sequencer or external switch on a display panel in order each time they are input, but also specifies the range to be analyzed and aggregated for input and stored signal units, and By counting the number of inputs for signal units within a specified range and displaying the number of receptions and signal units on the display panel in descending order of reception frequency based on the counting results, operators and maintenance workers can The aim is to make it convenient for analyzing the operating status of sequencers and mechanical devices and the causes of abnormalities.

【Example】

Hereinafter, the present invention will be explained in detail based on FIGS. 1 to 7. In the system configuration diagram of FIG. 6, in the present invention, an alarm clear switch 14k is newly installed in the external switch 14 as described above. FIG. 5 shows a front external view of the present invention. In the same figure, the display panel 8 is equipped with the transparent touch keys TK on its display surface as described above, and the operation panel 1 of the present invention includes the touch keys TK, the emergency stop switch≠14b, and the automatic/manual operation changeover switch. Operation information for 14c etc., sequencer 3
The RAM 13 stores the signal units inputted from the external switch 14d in the mechanical device 4, the operation information, the number of occurrences of the signal units, etc. in the RAM 13, and displays them on the display panel 8. Here, as described above, the emergency stop switch 14b, automatic/manual operation changeover switch 14c, and alarm clear switch 14 are switches included in the external switch 14 along with the display control switch 14a and the switch 14d inside the mechanical device. , these contact information are read into the main body of the operation panel 1, and their states are stored in the RAM 13. Further, in the present invention, a reception frequency display switch 14a1 as a switch for switching the screen of the display panel 8 to a display screen of the number of receptions, function switches F1 to F3 to be described later, etc. are newly installed in the display control switch 14a. 1 to 3 respectively show display screens P (PI to P3) related to the present invention among the screens displayed on the display panel 8.
shows. Of these, the display screen P2 in FIG. 2 is a screen that shows the alarm message 05 as a signal unit and the alarm code 02 for this alarm signal in the order of reception order 04. In addition, the display screen P1 in Fig. 1 shows the received alarm code 0.
2 and its frequency of occurrence (that is, reception frequency; in this example, the cumulative number of receptions to date) 03 are shown in order of magnitude of occurrence frequency 03 (with serial number 01). Further, the display screen P3 in FIG. 3 is displayed for selecting the function keys F1 to F3 prior to displaying the display in FIG. 1. This is a guide screen, and these function keys Fl to F3 are used to select which memory area alarm code 02, which is stored in RAM 13 in chronological order each time it is received, is used to count the number of occurrences (number of receptions) of each alarm code 02. This specifies the search range to be searched back to. Next, the reception frequency display operation of the microcomputer system on the operation panel of the present invention will be explained using the flowchart of FIG. First, in this embodiment, all signal units received from the sequencer 3 via the interface bus 6 are treated as alarm code 02. Also alarm code 0
2, the reception order 04. Alarm message 05. and alarm code 02 are displayed. Now, in FIG. 4, in step S1, the reception frequency display switch 14, which is one of the display control switches 14a, serves as a display mode designation switch for designating the reception frequency display.
Determine whether al has been operated. Here, if the switch 14al has been operated, the process advances to step S2, and if it has not been operated, the process exits from the procedure shown in FIG. 4 without performing any processing. In step S2, a guide screen P3 in FIG. 3 is displayed, that is, a guide screen for operating function keys F1 to F3 for specifying the search range for alarm code 02. In step S3, whether or not the function key F1 has been operated is displayed. If the key F1 has been operated, the process proceeds to step S6, where it is assumed that the entire memory range has been designated, and processing for the next step is performed. If the function key Fl has not been operated, the process advances to step S4 and it is determined whether the function key F2 has been operated. The key F
If 2 has been operated, the process advances to step S7, and the memory is searched for the time point when the alarm clear key 14k was operated.
Alarm codes received after that point are processed as targets for display of reception frequency. If the function key F2 has not been operated, the process advances to step S5, and it is determined whether the function key F3 has been operated. If the key F3 is not operated, the process returns to step S3 and the above-described processing routine is repeated. If function key F3 is operated, step S
Proceed to step 8 to perform search range setting processing. Since the search range can be set using general methods such as using a numeric keypad or cursor keys, detailed input methods will be omitted here. Steps S9 to 314 are a routine for counting the frequency of occurrence of alarm code 02, and in step S9, the stored alarm codes o2 are sequentially read from the beginning of the memory range specified by function keys F1 to F3 as described above. put out. In step S10, it is checked whether the read alarm code matches an alarm code that has been read out and subjected to the process of counting the occurrence frequency in the past. - If not, the process proceeds to step 312, where a new alarm code is stored in a memory that counts the frequency of occurrence. On the other hand, if the alarm codes match in step S10, the process proceeds to step SIX, where a search is made for the store location of the same alarm code in the memory. When the search is completed, the process proceeds to step S13, where a counter for the searched frequency of occurrence (number of receptions) is incremented by one. Step S
At step 14, it is checked whether the above-described processing has been performed for all alarm codes within the specified search range. If all checks have been completed, the process advances to step 315. If the process has not been completed, the process returns to step S9 and the above-described process is repeated. In step S15, the alarm codes are sorted in descending order of the number of occurrences of the alarm codes. This sorting process can be done in various ways and is common, so the explanation will be omitted. In step S16, the alarm codes 02 arranged in this manner are displayed together with the serial numbers 01 and the frequency of occurrence 03 assigned in order of the frequency of occurrence, as shown on the display screen P1 of FIG. By the above processing, alarm codes 02 are displayed in order of frequency of occurrence, so it becomes easy to analyze causes of alarm occurrence that cannot be determined by simply displaying the order of reception. Furthermore, in cases where the operator has been counting frequencies himself offline, this operation panel can be used to tally the frequencies, thereby reducing the workload. Furthermore, you can specify the search range for alarm codes. Therefore, even if the operator changes, by remembering the range of data for that operator and specifying the search range for each operator, it is possible to perform operation analysis for each operator.

【Effect of the invention】

According to the present invention, not only the signal unit is displayed at the time of reception, but also the occurrence frequency of the stored signal unit can be displayed, so that the following effects can be expected. (1) - Easily aggregate generated signals on a daily or weekly basis. (2) Aggregation of generated signal units for each operation sound, such as daily or multiplication, can be easily performed if the specified range of aggregation is set for each operator. (3) Since the amount of information for the generation analysis of each signal increases, the occurrence situation can be accurately grasped, and the operator's operation status etc. can be easily grasped. (4) Conditions such as defects or fatigue in the sequencer itself can be detected relatively easily.

[Brief explanation of the drawing]

FIGS. 1 to 3 are diagrams each showing a display screen as an embodiment of the present invention, FIG. 4 is a flowchart showing the operation of the main part as an embodiment of the present invention, and FIG. 5 is a front external appearance. 6 and 6 are system configuration diagrams, and FIG. 7 is a diagram showing the connection relationship between the operation panel of the present invention and the conventional operation panel and external devices. P (Pi to P3): Display screen, 01: Serial number, 02: Alarm code, 03: Occurrence frequency, 04: Reception order, 05
: Alarm message, F1-F3 : Function key, 1: Operation panel, 3: External control device (sequencer), 4: Mechanical device, 5: Control cable, 6: Interface bus, L (Ll-L2): External switch line ,7
: Microcomputer system, 8: Display panel, TK: Touch key, 11: Character generator, 12: ROM,
13RAM, 14 (14a ~ 14d, 14k)
'External switch, 14a (14al, F 1~F
3): Display control switch, 14al: Reception frequency display switch, Fl to F3: Function switch, 14
= Alarm clear switch. Figure 1 Alarm note 22 Figure 1: Plug panel Figure 5 2 East lap cable recorder Figure 7

Claims (1)

[Scope of Claims] 1) An operation panel comprising a control device for controlling a mechanical device and, if necessary, a display surface connected to the mechanical device via a signal line and displaying characters, etc. Sending operation signals for operating the device to the control device via the signal line, and receiving signals indicating the state of the mechanical device (hereinafter referred to as external signals) from the control device and the mechanical device via the signal line. , data indicating each of predetermined various signals among the operation signal or the external signal (hereinafter referred to as signal data)
means for counting and storing the number of occurrences for each of the signal data on an operation panel displayed on the display surface in the order of occurrence; an operation panel with a function of displaying frequency of state occurrence, comprising means for displaying on the display surface in order of size.