JPH04282707A - Controller with failure diagnostic function for producing equipment - Google Patents

Abstract

PURPOSE:To improve maintenance and to prevent the generation of a defective product by providing each controller board for a producing equipment with a failure diagnosing function capable of occasionally executing the failure diagnosis of a necessary item in the controller board itself or the producing equipment and flexibly corresponding to the improvement/change of the equipment. CONSTITUTION:Controller main boards (MMCB, MMIB) are respectively provided with failure managing means for the whole equipment to execute the issue of a failure diagnosing command, the reception of a result, the check of a result report completion and the display of the result based upon an operator's diagnostic contents instruction and start and controller slave boards (NCCB, SCCB) are respectively provided with self-failure diagnosing means and I/O parts failure diagnosing means to allow the former means to execute self-failure diagnosis by using a self-failure diagnosing program and self-failure deciding reference data, allow the latter means to execute I/O parts failure diagnosis by using an I/O parts failure diagnosing program and I/O parts failure deciding data and allow both the means to transmit respective failure diagnosing results to the failure managing means on the main boards.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to failure diagnosis of production equipment that performs assembly, processing, etc. using a controller.

0002

2. Description of the Related Art In a conventional fault display for automatic equipment using a controller, errors occurring as a result of production operations of the automatic equipment are displayed on a display device of an operation panel. For example, in automated equipment that mounts electronic components onto printed circuit boards, a "component suction error" occurs during automated production.
Error details related to production operation results, such as "out of parts error", are shown on the display device of the operation panel.

0003

[Problems to be Solved by the Invention] However, with the above-mentioned prior art equipment error display system, hardware failures of the controller itself or I/O of sensors, actuators, servo motors, etc. of the production equipment connected to the controller can occur.
/O No information is given regarding component failure.

[0004] Furthermore, in the prior art, failures are known only after production has begun, which may lead to products being defective.

The present invention has been made to solve the above-mentioned problems, and is capable of detecting failures of the controller itself and I/O parts in the production equipment connected to the controller at any time based on an operator's diagnosis instructions and startup. The object of the present invention is to provide a controller with a failure diagnosis function that can be presented to operators, improve maintainability, prevent the production of defective products, and flexibly respond to equipment improvements and changes.

[0006]

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a main board including a CPU board and a man-machine interface board, and a slave board including an NC control board or a sequence control board. A controller with a fault diagnosis function for production equipment comprising: issuing a fault diagnosis command to the slave board; receiving a fault diagnosis result from the slave board;
The slave board is equipped with a fault diagnosis means that confirms the completion of the fault diagnosis result report from the slave board, and displays the fault diagnosis result at any time by instructing the diagnosis content from the keyboard and starting the operation. A self-failure diagnosis program different from production operation and reference data for self-failure judgment used therein is stored, and the program and data are called based on the fault diagnosis command to perform self-fault diagnosis. and
The present invention is characterized by comprising self-failure diagnosis means for transmitting the results of the self-failure diagnosis to the failure management means of the main board.

In addition to the self-failure diagnosis means, the slave board diagnoses the operation of I/O parts such as servo motors, sensors, and actuators of production equipment connected to the slave board, which is different from production operation. A component failure diagnosis program and I/O component failure determination reference data used therein are stored, and based on the failure diagnosis program,
It is preferable to include I/O component failure diagnosis means for calling the program and data to perform I/O component failure diagnosis and transmitting the results of the I/O component failure diagnosis to the failure management means of the main board.

[0008]

[Operation] In the controller with a fault diagnosis function for production equipment according to the invention of claim 1, the main board is provided with a fault management means, and the fault management means allows the operator to instruct the slave board to perform diagnosis using the keyboard. a function to issue a failure diagnosis command at any time, a function to receive a failure diagnosis result from the slave board, a function to confirm that the report of the failure diagnosis result in response to the failure diagnosis command is completed, and a function to confirm that the failure diagnosis result is completed in response to the failure diagnosis command. The slave board has a function of displaying a self-failure diagnosis means, and the self-failure diagnosis means has a function of storing a self-failure diagnosis program and reference data for self-failure judgment that are different from production operations, and It has a function of determining a diagnostic command, a function of calling the program and data to perform self-failure diagnosis in the slave board, and a function of transmitting the results of the self-failure diagnosis to the main board.

[0009] Actual failure diagnosis is performed as follows. Whenever the operator deems it necessary, the operator uses the keyboard to instruct the main board's failure management means to issue a self-failure diagnosis command that indicates the necessary diagnostic content, and the main board's failure management means automatically detects the slave board's self-failure. The fault diagnosis command is issued to the diagnosis means. The slave board judges this command and calls and uses the self-failure diagnosis program and self-failure judgment standard data stored in itself based on the instructions, performs self-failure diagnosis within the slave board, and performs self-failure diagnosis. The results are sent to the main board fault management means. The main board failure management means receives this self-failure diagnosis result, and
The correspondence with the fault diagnosis command is confirmed to confirm that the reporting of the fault diagnosis results has been completed, and the fault diagnosis results are displayed. This display allows the operator to know at any time whether or not there is a failure in the slave board and the details of the failure.

[0010] The controller with a fault diagnosis function for production equipment according to the invention of claim 2, in addition to the case of claim 1,
The slave board is the I/O for the servo motors, sensors, actuators, etc. of the production equipment connected to the slave board.
Equipped with I/O component failure diagnosis means for diagnosing component operation,
This I/O component failure diagnosis means allows you to create an I/O component failure diagnosis program that is different from the production operation and the I/O component failure diagnosis program used for this program.
A function to store reference data for determining O component failure, a function to judge the failure diagnosis command, and a function to call the program and data to diagnose the operation of I/O parts of the production equipment connected to the slave board. and a function of transmitting the I/O component failure diagnosis results to the failure management means of the main board.

[0011] Actual failure diagnosis is performed as follows. Whenever the operator deems it necessary, the operator uses the keyboard to instruct the main board's fault management means to issue an I/O component fault diagnosis command indicating the necessary diagnosis content, and the main board's fault management means issues the I/O component fault diagnosis command to the slave board. I/O of
The failure diagnosis command is issued to the component failure diagnosis means. The I/O component failure diagnosis means of the slave board judges this command, and based on the instructions, calls up and uses the I/O component failure diagnosis program and I/O component failure determination reference data stored in itself. Then, the I/O component failure diagnosis is performed on the operation of the I/O component, and the I/O component failure diagnosis result is transmitted to the failure management means of the main board.

[0012] The failure management means of the main board is this I/O
While receiving the component failure diagnosis result, it confirms the correspondence with the failure diagnosis command to confirm that the report of the failure diagnosis result has been completed, and displays the failure diagnosis result.

[0013] From this display, the operator can know whether there is a failure or not and the details of the failure regarding the operation of I/O parts such as servo motors, sensors, and actuators of the production equipment connected to the slave board.

Furthermore, in the present invention, the fault management means for the entire production equipment is provided in the main board that controls the entire production equipment, and the self-failure diagnosis means for the slave board itself and the I/O for the operation of individual parts of the production equipment are provided. Since the /O component failure diagnosis means is located on the slave board, even if there is a change in the production equipment such as the main board, slave board, I/O parts, etc. due to changes or improvements in the production equipment, the failure management means and the failure diagnosis means are located on the slave board. The flexibility of the diagnostic means and the like can be achieved in that only the hardware or software parts corresponding to changes in the production equipment can be replaced.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention implemented in a die bonder for mounting a die chip on a printed circuit board.

[0016] The main board is a CPU board (MMCB)
and a man-machine interface board (MMIB).The man-machine interface board has a keyboard (K.B.) through which the operator inputs various instructions, and a C.B. R
．． T. It is equipped with

[0017] The slave board consists of two NC control boards (
NCCB1 and NCCB2) and two sequence control boards (SCCB2 and SCCB2).The NC control board is connected to servo mechanisms such as servo motors of production equipment, and the sequence control board is connected to sensors and actuators of production equipment. I/O parts are connected.

[0018] The CPU board and the man-machine interface board constituting the main board are provided with failure management means.

FIG. 4 is a flowchart of the failure management means for the man-machine interface board. The fault management means on the man-machine interface board includes an MMIB fault diagnosis program that diagnoses the fault of the man-machine interface board itself, a storage function for the reference data for MMIB fault diagnosis used in this program, and a function for storing standard data for MMIB fault diagnosis that is input by the operator from the keyboard. The C.I.C. R. T.
a function of displaying the fault diagnosis command on the CPU board and transmitting the fault diagnosis command to the CPU board; a function of receiving the fault diagnosis result performed by the slave board (described later) together with a diagnosis result display command from the CPU board; and a function of receiving the received fault diagnosis result as described below. Along with various diagnosis results of C. R. T. It has the function to display on the screen.

FIG. 5 is a flowchart of the CPU board failure management means. The fault management means on the CPU board has a storage function for the MMCB fault diagnosis program that diagnoses the fault of the CPU board itself, the reference data for MMCB fault judgment used in this program, and the fault diagnosis command based on the fault diagnosis command from the man-machine interface board. A function that calls the program and data to perform fault diagnosis on the CPU board itself and transmits the results to the man-machine interface board, and a function that sends a fault diagnosis command to the slave board based on the fault diagnosis command from the man-machine interface board. , a function to receive the failure diagnosis result of the slave board described later, and confirm the completion of the failure diagnosis result report by correlating the received diagnosis result with the issued failure diagnosis command, and a function to confirm the completion of the failure diagnosis result report. It has the function of transmitting the diagnosis result display command to the man-machine interface board.

FIG. 6 is a flowchart of the slave board failure diagnosis means. The self-failure diagnosis means in the slave board has a function of storing a self-failure diagnosis program for diagnosing failures in the slave board and reference data for self-failure judgment used in the self-failure diagnosis program, and a function of storing a self-failure diagnosis standard data used for the self-failure diagnosis program, and a function of performing failure diagnosis from the failure management means of the CPU board. It has a function of determining the result and calling the program and data to perform self-failure diagnosis, and a function of transmitting the self-failure diagnosis result to the failure management means of the CPU board.

The I/O component failure diagnosis means on the slave board includes an I/O component failure diagnosis program that diagnoses the operation of I/O components such as servo motors, sensors, and actuators connected to the slave board. I/O
A function for storing reference data for parts failure determination, and a CPU
A function for determining a failure diagnosis command from a failure management means of the board and calling the program and data to perform an I/O component failure diagnosis, and for transmitting this I/O component failure diagnosis result to a computer.
It also has the function of transmitting information to the PU board failure diagnosis management means.

Operator operations and fault diagnosis in this embodiment are performed as follows.

[0024] The operator inputs a failure diagnosis command indicating necessary diagnosis contents using the keyboard (KB) of the man-machine interface board (MMIB) whenever he or she deems it necessary. This command can specify the corresponding diagnostic items by symbol for each slave board's various functions or various I/O parts.
The operator instructs all the items or only the necessary items.

At step #2 in FIG. 4, the fault diagnosis means of the man-machine interface board (MMIB) issues the fault diagnosis command to the CPU board (MMCB).

At step #3 in FIG. 5, the CPU board (MM
The fault management means of the CB) issues the fault diagnosis command to the fault diagnosis means of the slave board.

In step #4 of FIG. 6, the slave board (
The fault diagnosis means of the NC control board or sequence control board) determines the fault diagnosis command, and if it is only a self-failure diagnosis command, the process proceeds to step #5 in FIG. 6, but does not proceed to step #6. If it is a self-failure diagnosis command or an I/O component failure diagnosis command, step #
5 and step #6.

In step #5 of FIG. 6, the NC control board or sequence control board of the slave board respectively determines the diagnostic item indicated by the received self-failure diagnosis command, and uses a self-diagnosis item different from the production operation to be used for the diagnostic item. A fault diagnosis program is called from its own memory and used to cause the CPU and its peripheral chips on its own board to perform operations corresponding to the above-mentioned diagnostic items, and the results are compared with the above-mentioned called data and Performs failure diagnosis and summarizes the diagnosis results.

In step #6 of FIG. 6, the NC control board or sequence control board of the slave board respectively determines the diagnosis item indicated by the received I/O component failure diagnosis command, and determines the production operation to be used for the diagnosis item. A different I/O component failure diagnosis program and the reference data for I/O component failure judgment used therein are recalled from its own memory and used for each NC control board or sequence control board, or for functionally related Certain boards work together to operate I/O parts corresponding to the above diagnostic items in a specified state, and turn them ON. OF. The status is read, the result is compared with the above-mentioned called data, a failure diagnosis of the I/O parts is performed, and the diagnosis results are summarized.

In step #7 of FIG. 6, the failure diagnosis means of the slave board transmits the diagnosis results of step #5 and step #6 to the failure management means of the CPU board (MMCB).

In step #8 of FIG. 5, the CPU board (M
The failure management means of the MCB determines whether or not the diagnosis result has been received. If received, the process proceeds to step #10 in FIG. 5; if not, the process proceeds to step #9 in FIG.

In step #9 of FIG. 5, the CPU board (
The failure management means of the MMCB waits for a predetermined period of time and checks whether or not the diagnosis result has been received. If received, the process proceeds to step #10 in FIG. 5; if not, the process returns to step #8 in FIG.

In step #10 of FIG. 5, the CPU board (
The failure management means of the MMCB compares the contents of the received diagnosis result with the contents of the failure diagnosis command in step #3 in FIG. If the process has been completed, the process proceeds to step #11 in FIG. 5, and if it has not been completed, the process returns to step #3 in FIG.

In step #11 of FIG. 5, the CPU board (
The failure management means of the MMCB notifies the failure management means of the man-machine interface board (MMIB) of the failure diagnosis result confirming completion of the diagnosis result report together with a diagnosis result display command.

In step #12 of FIG. 4, the failure management means of the man-machine interface board (MMIB) is
It is determined whether or not there is the above-mentioned diagnosis result display command from the fault management means of the board (MMCB), and if this command is present, the display shown in FIG.
Proceed to step #13 in Figure 4, if not, proceed to step #1 in Figure 4.
Repeat step 2.

In step #13 of FIG. 4, the failure management means of the man-machine interface board (MMIB)
The failure diagnosis result from the failure management means of the U board (MMCB) is received and sent to the C. R. T. to be displayed.

[0037] The operator can learn the details of the failure as needed by looking at this display.

Failure management means for the entire production equipment is located on the main board that controls the entire production equipment, and self-failure diagnosis means for the slave board itself and I/O component failure diagnosis means for individual operations of the production equipment are provided. Since it is located on the slave board, it is possible to match the combination of the control function and failure diagnosis function of the production equipment one-to-one for each function of the production equipment. Even if there is a change in production equipment such as I/O parts, the failure management means and the failure diagnosis means, etc., replace only the part that is combined with the changed part of the production equipment in terms of hardware or change it in software. This allows for flexibility in responding to equipment improvements and changes.

[0039]

Effects of the Invention As described above, the controller with a fault diagnosis function for production equipment of the present invention has a main board equipped with a CPU board and a man-machine interface board, and an NC
It consists of a slave board equipped with a control board or a sequence control board, and the main board has the function of issuing a failure diagnosis command upon activation and instruction of diagnosis contents by the operator, the function of receiving diagnosis results, and the function of confirming completion of diagnosis result report. The slave board stores a self-failure diagnosis program and reference data for self-failure determination that are different from production operations for diagnosing failures within the slave board. and an I/O component failure diagnosis program and I/O component failure determination program that is different from production operation that diagnoses the operation of I/O components such as servo motors, sensors, and actuators of production equipment connected to the slave board. A function of storing reference data, a function of determining the failure diagnosis command, and based on this determination, using the program and data to diagnose the failure in the slave board or the operation of the I/O parts of the production equipment. Since the system is equipped with self-failure diagnosing means or I/O component failure diagnosing means having a function and a function of transmitting the diagnosis result to the failure management means of the main board, an operator of the equipment can operate the failure management means. By this,
Since it is possible to instruct the necessary trouble diagnosis items at any time and find out whether there is a fault in the equipment and the details of the fault, with conventional technology, a fault is known only after production has started, and the product is not defective. This has the effect of improving maintainability and preventing the production of defective products.

Furthermore, in the present invention, since the functions of production equipment and the fault diagnosis functions can be made to correspond one-to-one for each function of production equipment, changes in the fault management means and fault diagnosis means can be made in response to changes and improvements in production equipment. This provides flexibility for changes and improvements in that only the parts that are combined with changes and improvements to production equipment need to be changed.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a controller board according to an embodiment of the present invention.

FIG. 2 is an external view of the die bonder of the embodiment shown in FIG. 1;

FIG. 3 is an external view of the man-machine interface board of the embodiment of FIG. 1;

FIG. 4 is a flowchart of a failure management means for the man-machine interface board of the embodiment of FIG. 1;

FIG. 5 is a flowchart of a failure management means for the CPU board in the embodiment of FIG. 1;

FIG. 6 is a flowchart of a failure diagnosis means for the slave board in the embodiment of FIG. 1;

[Explanation of symbols]

4 Mounting section for CPU board, NC control board, and sequence control board 5 Man-machine interface board 11 Keyboard 12 C. R. T.

Claims (2)

[Claims] 1. A controller with a fault diagnosis function for production equipment, comprising a main board equipped with a CPU board and a man-machine interface board, and a slave board equipped with an NC control board or a sequence control board, wherein the slave board is equipped with a fault diagnosis function. issue a fault diagnosis command to the slave board, receive the fault diagnosis result from the slave board, confirm the completion of the fault diagnosis result report from the slave board, and display the fault diagnosis result. The slave board is equipped with a failure diagnosis means that is configured to be executed at any time upon startup, and the slave board stores a self-failure diagnosis program that diagnoses failures within the slave board, which is different from production operations, and reference data for self-failure determination used therein. and a self-fault diagnosis means for calling the program and data to perform self-failure diagnosis based on the fault diagnosis command, and transmitting the results of the self-failure diagnosis to the fault management means of the main board. A controller with a fault diagnosis function for production equipment. 2. In addition to self-failure diagnosis means, the slave board has an I/O component different from production operation that diagnoses the operation of I/O parts such as servo motors, sensors, and actuators of production equipment connected to the slave board. A /O component failure diagnosis program and I/O component failure determination reference data used therein are stored, and the I/O component failure diagnosis is performed by calling the program and data based on the failure diagnosis program. 2. A controller with a fault diagnosis function for production equipment according to claim 1, further comprising an I/O component fault diagnosis means for transmitting the results of the I/O component fault diagnosis to a fault management means of the main board.