JPH1091477A - Control microcomputer device and maintenance tool for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To precisely and speedily recognize the operation of a control program. SOLUTION: A trace condition storage memory 8 previously sets address information and the trace data collection period of an input point for reading and preserving data of a memory in accordance with the operation memory 5 as trace condition data. A trace data storage memory 9 reads data of the operation memory 5 and it is written. A main control part 2 reads pertinent data of the operation memory 5 in accordance with address information of the input point which is set when it becomes the trace data collection period by trace condition data, sequentially writes them in the trace data storage memory 9 ands necessary data are written without omission.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a control microcomputer device and a maintenance tool for the device.

[0002]

2. Description of the Related Art FIG. 16 shows a block diagram of a conventional control microcomputer device.

In FIG. 1, a control microcomputer device 1 includes a main control unit 2, an external input / output unit 3, a program storage memory 4, an operation memory 5, and a maintenance tool 7 described later.
And a transmission control unit 6.

The main control unit 2 includes a microprocessor as an arithmetic processing unit, and executes arithmetic processing using arithmetic data in the arithmetic memory 5 according to a control program stored in the program storage memory 4. Is stored in the calculation memory 5. The external input / output unit 3 is an interface that takes in the data of the plant and stores it in the operation memory 5, and outputs the data stored in the operation memory 5 to the plant. The program storage memory 4 stores a control program created by a maintenance tool 7 described later. The operation memory 5 stores operation data and input / output data with the plant. The transmission control unit 6 with the maintenance tool 7 controls transmission with the maintenance tool 7 described later.

[0005] In the control microcomputer device 1 described above, the processing by the control program shown in FIG. 17 is performed. First, data is fetched from the plant via the external input / output unit 3, and this data is sequentially stored at the specified address of the arithmetic memory 5 (S1).

Next, the control programs are sequentially fetched from the program storage memory 4 (S2), and the arithmetic processing is sequentially executed using the data stored in the arithmetic memory 5 according to the instruction code. The data is stored at the designated address in the arithmetic memory 5 (S3, S4).
When the processing of all the control program instructions is completed, the contents of the operation memory 5 are output from the external input / output unit 3 to the plant (S5). Thereby, the plant equipment is controlled by the control microcomputer device 1.

Next, the transmission control unit 6 communicates with the maintenance tool 7.
Data is exchanged with the maintenance tool 7 via the
6) The maintenance of the internal state monitor and the like of the control microcomputer device 1 by the maintenance tool 7 is enabled. The above process is repeatedly executed at high speed in a predetermined cycle.

The control program used by the control microcomputer device 1 is created by the maintenance tool 7 or an external program creating device (not shown), and is transmitted to the maintenance tool 7 by a transmission means such as the transmission control unit 6 or the like. The program is stored in the program storage memory 4 of the computer device 1. At this time, it is conventionally required to check whether the created control program has an error, that is, to perform a so-called debugging, or to check an internal state when the control microcomputer device 1 performs an unexpected output to the plant. Had been implemented.

First, the control microcomputer device 1
The maintenance tool 7 is connected to the maintenance tool 7, and the contents of the operation memory 5 are input at a predetermined cycle by the maintenance tool 7 and displayed on the display unit of the maintenance tool 7. This allows the operator to visually check the internal state of the control microcomputer device 1 while
The control program was debugged and the internal state was checked when unexpected output was performed to the plant.

On the other hand, FIG. 18 is a block diagram showing a maintenance tool of a conventional control microcomputer device.

In the figure, a maintenance tool 7 used for the control microcomputer device 1 shown in FIG.
2, an external input / output unit 23, a program storage unit 24, and a transmission unit 26 for the control microcomputer device 1 described above.

The control unit 22 includes a microprocessor,
The program information and the like stored in the program storage unit 24 are displayed on the display unit 25 according to the information specified by the operator from the external input / output unit 23. Also, via the transmission unit 26,
The data and the like of the arithmetic memory 5 of the control microcomputer device 1 are input into the inside, and the data and the like are displayed on the display unit 25 together with the program information and the like.

The above processing is performed by the operator using the external input / output unit 2.
Until the next instruction is performed using the command No. 3, the process is repeatedly performed at a predetermined cycle.

[0014]

However, such a conventional control microcomputer device 1 and maintenance tool 7 require a control microcomputer when a control program is debugged or an unexpected output is performed to a plant. The internal state of the device 1 could not be sufficiently confirmed.
In addition, there is a problem that it takes a lot of time to check the internal state of the control microcomputer device 1 and the efficiency is very low.

First, the operation inside the control microcomputer device 1 shown in FIG. 16 is repeatedly executed at a very high speed, and the data in the operation memory is updated each time the operation is performed. Therefore, when debugging of a control program and data that was unexpectedly output to the plant are needed, data necessary for confirmation and the like are updated and often not left in the arithmetic memory. There was a problem that it was sometimes difficult to confirm the internal state of the device 1 from the maintenance tool 7.

Second, as described above, the calculation inside the control microcomputer device 1 shown in FIG. 16 is repeatedly executed at a very high speed, whereas the data display on the display unit of the maintenance tool 7 is performed. Due to the limitation of the physical access speed to the display unit medium, the data of all the calculation periods performed inside the control microcomputer device 1 cannot be displayed on the display unit in real time. .

In such a case, even if display is possible, it is difficult for the human eyes to confirm display data that changes at high speed. For this reason, the data that can be displayed by the conventional maintenance tool 7 is data that is sampled data in the control microcomputer device 1 for each period in which the display unit of the maintenance tool 7 can display, and is internally stored in the control microcomputer device 1. There is a problem that the data of all the operation cycles being performed cannot be confirmed by the maintenance tool 7 without omission.

Third, as described above, the internal information of the control microcomputer device 1 that can be monitored using the maintenance tool 7 includes a control state that is repeatedly executed at high speed by the control microcomputer device 1 for a predetermined period. In order to determine whether or not an unexpected output to the plant has been performed, it is necessary to add a mechanical or electrical signal latch circuit or the like to the external output unit 3 to the plant. In addition, there is a problem that a test program for latching the occurrence of an abnormal signal output to the plant and for storing (latching) necessary related information in an operation memory must be added to the control program.

Fourth, whether or not the control microcomputer device 1 is performing plant control as expected is determined by providing a mechanical or electrical signal latch circuit or the like to an external input / output unit with the plant. It is necessary for a human to determine the information obtained by adding the information or the information inside the control microcomputer device 1 displayed using the maintenance tool 7 while checking each time.

Therefore, the present invention collects and stores necessary data without omission, and enables simple, short-time and efficient monitoring of the control program and monitoring of the internal state of the control microcomputer device. It is an object to provide a control microcomputer device and a maintenance tool for the device.

[0021]

According to a first aspect of the present invention, there is provided an external input / output unit for taking in plant data and outputting the data to the plant, a program storage memory for storing a control program for arithmetic processing, and an arithmetic data unit. And an operation memory for storing data to be input / output to / from the plant including the obtained operation result data, a transmission control unit for controlling transmission of data to / from the maintenance tool, and execution of a control program for each control cycle A control microcomputer device comprising: an operation result data obtained by performing the operation using the operation data by the operation data in the operation memory; and a main control unit that outputs from the external input / output unit to the plant. Correspondingly, the address information of the input point for reading and storing the data of the memory and the trace data collection cycle are set in advance in the trace condition. A trace condition storage memory to be set as data, a trace data storage memory for reading and reading data from an operation memory, and an operation memory according to address information of a set input point when a trace data collection cycle based on trace condition data comes. And means for sequentially writing the corresponding data to the trace data storage memory. According to this means, based on the predetermined trace condition data, at the trace data collection period, data corresponding to the address information of the input point is sequentially stored in the trace data storage memory. As a result, necessary data is written to the operation memory and the trace data storage memory without being missed. Therefore, the necessary data is not updated and disappears as in the prior art, and the internal operation of the microcomputer device can be confirmed with the maintenance tool without omission.

According to a second aspect of the present invention, there is provided an external input / output unit for taking in plant data and outputting the data to the plant, a program storage memory for storing a control program for operation processing, operation data and an obtained operation result. An operation memory that stores data input to and output from the plant that contains data, a transmission control unit that controls the transmission of data between maintenance tools, and an operation that uses the operation data by executing a control program at each control cycle And a main control unit for outputting the operation result data obtained from the operation to the operation memory and outputting the operation result data from the external input / output unit to the plant. A trace condition storage memory for storing as a trace condition for reading only when the data of the input point which has been input is a predetermined condition; Trace data storage memory for reading and reading data from the arithmetic memory, and read data from the arithmetic memory according to the address information of the input point to be collected when the trace condition is satisfied by the trace condition data, and sequentially write the data into the trace data storage memory. Means is provided. According to this means, when the data of the designated input point of the operation memory, which is the predetermined trace condition data, becomes the predetermined condition, the data is written to the trace data storage memory according to the address information of the input point to be collected. As a result, only the truly necessary data when a specific event occurs is efficiently written to the trace data storage memory. Therefore, the debugging work of the control program can be performed accurately and quickly, information about the apparatus can be easily obtained when a specific event occurs in the plant, and the trace data storage memory can have a relatively small capacity.

According to a third aspect of the present invention, in the control microcomputer device according to the first or second aspect, the trace condition storage memory sets trace data storage start condition information and trace data storage end condition information, If the data storage start condition information is trace permission, and
Means for reading data from the operation memory and starting writing sequentially to the trace data storage memory when the trace condition is satisfied, and providing means for terminating the writing when the trace data storage end condition information indicates that the trace is prohibited. It is. According to this means, storage of the trace data is started when the plant has a specific condition, and storage of the trace data is stopped when the plant has another specific condition. As a result, trace data only in a specific case that is truly necessary can be obtained, debugging can be performed efficiently, verification of the apparatus itself can be performed in a short time, and the capacity of the trace data storage memory can be reduced.

According to a fourth aspect of the present invention, in the control microcomputer device according to the third aspect, the trace condition storage memory includes a plurality of input point address information for specifying a collection point to be written from the operation memory to the trace condition storage memory. A plurality of set trace conditions and a trigger condition for switching these trace conditions are stored, and when the trigger condition is satisfied, means for switching to execute processing of the trace condition of the corresponding collection point is provided. . According to this means, when a predetermined trigger condition is satisfied, the trace data collection point is switched from the plurality of sets of trace data collection points to the corresponding trace data collection point. As a result, only data that is truly necessary according to the event of the plant is selected and collected. Therefore, the operation of selecting necessary data from the collected data is not required, and the detailed behavior analysis of the plant and the debugging of the control program can be efficiently performed.

According to a fifth aspect of the present invention, in the control microcomputer device according to the third aspect, the trace condition storage memory is provided with a plurality of trace data collection cycle information of data to be written from the operation memory to the trace data storage memory. And a trigger condition for switching these trace conditions are stored, and when the trigger condition is satisfied, means for switching to execute the processing of the corresponding trace data collection cycle condition is provided. According to this means, when a predetermined trigger condition is satisfied, the trace data collection cycle is switched from a plurality of sets of trace data collection cycle information to the corresponding trace data collection cycle. As a result, data is collected at a necessary trace data collection cycle according to a plant event. Therefore, necessary data can be collected without increasing the capacity of the trace data storage memory, and the detailed behavior analysis of the plant and the debugging of the control program can be efficiently performed.

According to a sixth aspect of the present invention, in the control microcomputer device according to the third aspect, the trace condition storage memory includes a plurality of trace data match conditions in which a plurality of trace data match conditions to be written from the operation memory to the trace data storage memory are set. And a trigger condition for switching these trace data matching conditions, and a means for switching so as to execute the processing of the corresponding trace data matching condition when the trigger condition is satisfied is provided. According to this means, when a predetermined trigger condition is satisfied, the trace data matching condition is switched from a plurality of sets of trace data matching conditions. As a result, only data that is truly necessary according to the event of the plant is selected and collected. Therefore, the operation of selecting necessary data from the collected data is not required, and the detailed behavior analysis of the plant and the debugging of the control program can be efficiently performed.

[0027] The invention according to claim 7 is the invention according to claims 3 to 6.
In any of the control microcomputer devices described above, an auxiliary trace data storage memory is provided separately from the trace data storage memory, and when a data storage condition set in the trace condition storage memory is detected, all the data in the trace data storage memory are detected. Is added to the auxiliary trace data storage memory.
According to this means, the trace data can be stored in the auxiliary trace data storage memory even when the event of the plant occurs a plurality of times. As a result, trace data for a plurality of events can be collected without fail at a time. Therefore, the detailed behavior of the plant can be analyzed, and the debugging time of the control program can be reduced.

[0028] The invention of claim 8 is the invention of claims 3 to 7.
In any of the control microcomputer devices described above, when a data transmission condition stored in the trace condition storage memory is detected, the data in the trace data storage memory or the auxiliary trace data storage memory is transmitted to the maintenance tool via the transmission control unit. A transmission means is added. According to this means, when a preset transmission condition is satisfied, the data in the trace data storage memory or the trace data storage memory is transmitted to the maintenance tool, and the data is stored on the maintenance tool side. This allows
As long as the hard disk on the maintenance tool has free space, a large amount of data can be saved without omission. Therefore, the event of the plant including the past history can be analyzed.

According to a ninth aspect of the present invention, there is provided a display unit for displaying a control program or operation data of a control microcomputer device on a screen, an input unit for inputting a request by an operator, and a program storage unit for storing the control program. The data transmission is performed between a trace condition setting unit that sets a trace data condition for writing data in an operation memory provided in the control microcomputer device to a trace data storage memory and a transmission control unit of the control microcomputer device. In accordance with the display request from the input unit and the transmission unit to be executed, the control program is retrieved from the program storage unit and displayed on the display unit, while the trace data is retrieved and displayed from the trace data storage memory of the control microcomputer based on the displayed control program. Playback display at a visible interval , Sets the trace condition by the trace condition setting unit according to the trace condition setting request from the input unit, in which the provided and a control unit for transmitting the trace data condition storage memory provided in the control microcomputer unit. According to this means, the trace data is taken into the maintenance tool from the control microcomputer device without omission, and the control program and the trace data are reproduced and displayed at a visible speed. As a result, the data processed at high speed is displayed without being missed, so that the analysis of the behavior of the plant can be easily and accurately analyzed, and the debugging of the control program can be efficiently performed.

According to a tenth aspect of the present invention, there is provided the maintenance tool for a control microcomputer device according to the ninth aspect, wherein means for displaying trace data on a display unit one by one in order of trace data is provided. According to this means, the control program, the calculation data, the plant data, and the like are compared on the maintenance tool side, and are sequentially reproduced or displayed in reverse reproduction without missing any trace data. This makes it possible to reliably analyze the behavior of the plant and debug the control program through human eyes.

According to an eleventh aspect of the present invention, in the maintenance tool for a control microcomputer device according to the ninth or tenth aspect, a known data storage unit for storing known data from an input unit and a control microcomputer device. A trace data storage unit for storing the acquired trace data and a means for comparing the known data with the trace data are provided. According to this means, the trace data and the known data are collated, and the result is output. This allows the control microcomputer device to operate normally without human intervention,
It can be diagnosed and processed efficiently.

[0032]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a control microcomputer device according to a first embodiment of the present invention. In FIG. 1, the same reference numerals as those in FIG. 16 is different from FIG. 16 in that a trace condition storage memory 8 and a trace data storage memory 9 are provided.

Here, the trace condition storage memory 8 stores information on which point (address) data (trace point information) in the arithmetic memory 5 is to be stored in the trace data storage memory 9 at what trace data collection cycle. Is set in advance. The trace data storage memory 9 is a memory for sequentially storing data of a designated point (trace point information) in the arithmetic data memory 5 when the trace data condition set in the trace condition storage memory 8 is satisfied. In the figure,
Although the trace condition storage memory 8 and the trace data storage memory 9 are shown one by one for the sake of simplicity, a plurality of these memories may be provided.

FIG. 2 shows a control program process of the control microcomputer device according to the first embodiment of the present invention. The same reference numerals as in FIG. 17 showing the conventional example indicate the processing of the same or corresponding parts.

In the control microcomputer device 1 described above, the process according to the control program shown in FIG. 2 is executed, and first, the data fetched from the plant via the external input / output unit 3 is designated in the operation memory 5. The data is sequentially stored in the address (S1).

Next, the control programs are sequentially fetched from the program storage memory 4 (S2), the arithmetic processing is sequentially executed using the data stored in the arithmetic memory 5 according to the instruction code, and the result of the arithmetic processing is obtained. The data is stored at the designated address in the arithmetic memory 5 (S3, S4).
When the processing of all the control program instructions is completed, the contents of the operation memory 5 are output from the external input / output unit 3 to the plant (S5). Thereby, the plant equipment is controlled by the control microcomputer device 1.

Next, it is checked whether or not the collection cycle condition of the trace data stored in the trace condition storage memory 8 is satisfied (S11). If not, the data transmission with the maintenance tool 7 is performed (S6). Is carried out. When the data collection cycle is detected in the condition check of the data collection cycle (S11), the trace point information which is the trace condition data stored in the trace condition storage memory 8 is read out, and the corresponding point of the corresponding operation data memory 5 is read. Is stored in the trace data storage memory 9 (S12). This processing is performed in the trace condition storage memory 8.
It is repeated for the number of trace points set in.

The data is stored in the trace data storage memory 9 from the lowest address side of the memory space. When the highest address of the memory is reached, the data is stored in the cyclic list which repeats the data storage from the lowest address. This is a format that is stored continuously without interruption.

If there are a plurality of trace condition storage memories 8 and a plurality of trace data storage memories 9, it is checked whether or not the trace data collection cycle condition stored in the trace condition storage memory 8 is satisfied (S11). ) And when the data collection cycle is detected in this process, the process of reading out the trace point information stored in the trace condition storage memory 8 and storing the data of the corresponding point in the corresponding operation data memory 5 in the trace data storage memory 9 (S12) is performed. Then, the process is repeatedly performed by the number of the existing trace condition storage memories 8 and trace data storage memories 9. When the above processing is completed, transmission to the maintenance tool 7 is performed (S6). The control microcomputer device 1 repeatedly executes the above processing at a predetermined cycle at a high speed.

As described above, according to the first embodiment of the present invention, the data of the designated point in the operation memory that changes at high speed inside the control microcomputer device is
The data is stored in the trace data storage memory without fail at every trace data collection cycle of the control microcomputer device. Therefore, it is possible to prevent the necessary data from being erased by updating the data in the operation memory as in the related art. Then, by using the data stored in the trace data storage memory, the operation state inside the control microcomputer device can be accurately grasped, and the debugging time of the control program can be reduced. In addition, by using only trace data, the operation of the control program can be checked, and the operation can be checked (debugged) off-line without occupying the control microcomputer device at the time of checking. Debugging time can be reduced. Furthermore, by specifying input / output data with the plant at the trace target point,
It is possible to grasp the detailed operation state of the plant.

FIG. 3 shows a control program process of the control microcomputer device according to the second embodiment of the present invention.

In FIG. 3, the same reference numerals as in FIG. 17 showing the conventional example indicate the same or corresponding parts. Further, the same reference numerals as those in FIG. 2 showing the first embodiment indicate the same or corresponding parts.

Further, the block diagram of the control microcomputer device of the present embodiment is the same as that of FIG. 1 shown in the first embodiment. It is characterized in that the data at the set point is written into the trace data storage memory 9 when the data of a certain state exists.

Here, the trace condition storage memory 8 stores which point (address) data in the arithmetic memory 5 becomes what data, or the time managed by the control microcomputer device 1 shows what value Then, the trace condition data indicating which point data in the arithmetic memory 5 is to be stored in which address is set in advance. The trace data storage memory 9 is a memory for sequentially storing data of designated points in the arithmetic data memory 5 when the conditions are satisfied based on the trace condition data set in the trace condition storage memory 8.

In the figure, the trace condition storage memory 8 and the trace data storage memory 9 are shown one by one for the sake of simplicity, but a plurality of these memories may be provided.

In the control microcomputer device 1 described above, the process according to the control program shown in FIG. 3 is executed. First, the first half is taken in from the plant via the external input / output unit 3 as in the first embodiment. Data is sequentially stored at designated addresses in the operation memory 5 (S
1).

Next, the control programs are sequentially fetched from the program storage memory 4 (S2), the arithmetic processing is sequentially executed using the data stored in the arithmetic memory 5 in accordance with the instruction code, and the result of the arithmetic processing is obtained. The data is stored at the designated address in the arithmetic memory 5 (S3, S4).
When the processing of all the control program instructions is completed, the contents of the operation memory 5 are output from the external input / output unit 3 to the plant (S5). Thereby, the plant equipment is controlled by the control microcomputer device 1.

Next, it is checked whether the data at the designated point in the operation memory 5 matches the designated data (condition) stored in the trace condition storage memory 8 (S).
21) If the conditions are not satisfied, data transmission with the maintenance tool 7 is performed (S6). For example, the operation memory 5
It is assumed that the set trace condition is satisfied when a condition such as when the input point indicating the breakpoint in the table changes from “1” to “0” is satisfied.

Check condition with specified data (S21)
When a condition match is detected, the trace point information stored in the trace condition storage memory 8 is read, and the data of the corresponding point in the corresponding operation data memory 5 is stored in the trace data storage memory 9 (S1).
2). This process is repeated for the number of trace points set in the trace condition storage memory 8.

If there are a plurality of trace condition storage memories 8 and a plurality of trace data storage memories 9, the operation memory 5 stored in the trace condition storage memory 8
(S21) to check whether or not the designated point has become the designated condition, and if the condition is detected in this process, the trace point information stored in the trace condition storage memory 8 is read out and the corresponding operation data memory 5 A process (S12) of storing the data of the corresponding point in the trace data storage memory 9 is performed. Then, the process is repeatedly performed by the number of the existing trace condition storage memories 8 and trace data storage memories 9.

When the above processing is completed, transmission with the maintenance tool 7 (S6) is performed. The control microcomputer device 1 repeatedly executes the above processing at a predetermined cycle at a high speed.

As described above, according to the second embodiment, the data of the point designated by the trace start condition in the operation memory, which is changing at high speed inside the control microcomputer device, becomes the specific condition. Only when this occurs, the data at the designated point in the operation memory is stored in the trace data storage memory. For this reason, since trace data is stored only when a specific event occurs, only truly necessary data can be collected, the debugging time of a control program using the data can be reduced, and the control microcomputer device can be used. The capacity of the trace data storage memory prepared in the memory can be reduced. Further, related information in the control microcomputer device at the moment when the plant reaches a specific event can be easily grasped.

FIG. 4 shows a control program process of the control microcomputer device according to the third embodiment of the present invention.

In the figure, the same reference numerals as in FIG. 17 showing the conventional example indicate the same or corresponding parts. FIGS. 2 and 3 show the first or second embodiment.
The same reference numerals indicate the same or corresponding parts. FIG. 1 is a block diagram of the control microcomputer device according to the present embodiment.
The third embodiment is characterized in that a condition for starting writing and a condition for stopping writing from the arithmetic memory 5 to the trace data storage memory 9 are provided.

Here, the trace condition storage memory 8 stores the data at which point (address) in the operation memory 5 becomes any data, or the time managed by the control microcomputer device 1 indicates which value. , Trace condition data indicating whether to start / end the trace data storage processing in the trace data storage memory 9 and which point data in the operation memory 5 should be stored in the trace data storage memory 9 Is set in advance.

In the figure, the trace condition storage memory 8 and the trace data storage memory 9 are shown one by one for the sake of simplicity, but a plurality of these memories may be provided.

In the control microcomputer device 1 described above, the processing according to the control program shown in FIG. 4 is performed. First, the trace processing (data storage processing) to the trace data storage memory 9 is prohibited (S30).

Next, the data fetched from the plant via the external input / output unit 3 is sequentially stored at the designated address of the operation memory 5 (S1). Further, control programs are sequentially retrieved from the program storage memory 4 (S
2) The arithmetic processing is sequentially executed using the data stored in the arithmetic memory 5 in accordance with the instruction code, and the result of the arithmetic processing is stored in the arithmetic memory 5 at the designated address (S3, S4). . When the processing of all the control program instructions is completed, the contents of the operation memory 5 are output from the external input / output unit 3 to the plant (S5). Thereby, the plant equipment is controlled by the control microcomputer device 1.

Next, it is checked whether or not the tracing process (data saving process) to the trace data storage memory 9 is prohibited (S31). If the trace processing is prohibited by the check, the trace data storage start condition information set in the trace condition storage memory 8 is read, and the arithmetic memory 5 specified by the condition is read.
Is checked (S32). As a result, when the trace data storage start condition is detected, the trace process is permitted (S33), and the process proceeds to the next process. If the trace data saving start condition is not detected,
The process proceeds to transmission with the maintenance tool 7 (S6).

On the other hand, if the tracing process is not prohibited in the check (S31), the trace condition storage memory 8
Is read out, and the contents of the arithmetic memory 5 specified by the condition are checked (S34). As a result, when the trace data storage end condition is detected, the trace processing is prohibited (S35), and the transfer to the maintenance tool (S6) is performed. If no trace data storage end condition is detected, the process moves to the next process.

If the result of the check processing (S33, S34) indicates that the trace processing is permitted, the trace processing is stored in the trace condition storage memory 8 according to the trace condition set in the trace condition storage memory 8 (S36). The read trace point information is read, and the data of the corresponding point in the corresponding operation data memory 5 is stored in the trace data storage memory 9 (S12). This process is repeated for the number of trace points set in the trace condition storage memory 8.

When the above processing is completed, transmission to the maintenance tool 7 (S6) is performed. In the transmission process with the maintenance tool 7 (S6), the trace processing permission / prohibition state is switched according to a request from the maintenance tool 7, regardless of the trace data storage start / end conditions set in the trace condition storage memory 8. It is also possible.

As described above, according to the third embodiment, it is possible to easily collect only trace data from the time when the control state of the plant reaches a specific condition to the time when another specific condition occurs. For this reason, even when the maintenance tool is not connected to the control microcomputer device to collect trace data information at the time of occurrence of the pursued event, the control microcomputer device does not lose the trace data information. Since the information is stored, necessary information can be easily obtained. In addition, it is possible to collect only truly necessary data, shorten the debugging time of the control program using the data, and reduce the capacity of the trace data storage memory prepared in the control microcomputer device.

FIG. 5 shows the control program processing of the control microcomputer device according to the fourth embodiment of the present invention.

In the figure, the same reference numerals as those in FIG. 17 showing the conventional example indicate the same or corresponding parts. The same reference numerals as those in FIG. 4 showing the third embodiment indicate the same or corresponding parts. Further, the block diagram of the control microcomputer device of the present embodiment is the same as that of FIG. 1 shown in the first embodiment, and the fourth embodiment provides a plurality of collection point information and sets the trigger condition. The feature is that the collection point information is switched according to the establishment.

Here, the trace condition storage memory 8 stores the data at which point (address) in the arithmetic memory 5 becomes any data, or the time managed by the control microcomputer device 1 indicates the value. Is set, whether or not to start / end the trace data storage processing in the trace data storage memory 9 is set, while the trace data storage memory 9 is used to collect which point data in the arithmetic memory 5 is to be stored. A plurality of sets of point information are set, and a trigger condition (a plurality of conditions may be set) for switching a plurality of collection point information of the calculation memory 5 stored in the trace data storage memory 9 is set in advance.

Further, in the figure, the trace condition storage memory 8 and the trace data storage memory 9 are shown one by one for the sake of simplicity, but a plurality of these memories may be provided.

In the control microcomputer device 1 described above, processing according to the control program shown in FIG. 5 is performed.

First, it is assumed that the first trace data designation point condition set in the trace condition storage memory 8 is used (S40). Then, the tracing process (data saving process) to the trace data storage memory 9 is prohibited (S30). Subsequently, the data fetched from the plant via the external input / output unit 3 is sequentially stored at the specified address of the arithmetic memory 5 (S1).

Next, the control programs are sequentially fetched from the program storage memory 4 (S2), the arithmetic processing is sequentially executed using the data stored in the arithmetic memory 5 according to the instruction code, and the result of the arithmetic processing is obtained. The data is stored at the designated address in the arithmetic memory 5 (S3, S4).
When the processing of all the control program instructions is completed, the contents of the operation memory 5 are output from the external input / output unit 3 to the plant (S5). Thereby, the plant equipment is controlled by the control microcomputer device 1.

Next, it is checked whether or not the trace processing (data storage processing) to the trace data storage memory 9 is prohibited (S31). If the trace processing is prohibited by the check, the trace data storage start condition information set in the trace condition storage memory 8 is read, and the contents of the arithmetic memory 5 specified by the condition are checked. (S32). As a result, when the trace data storage start condition is detected, the trace process is permitted (S33), and the process proceeds to the next process.

On the other hand, when the trace data storage start condition is not detected, the flow shifts to transmission with the maintenance tool (S6). If the trace processing is not prohibited in the check (S31), the trace data storage end condition information set in the trace condition storage memory 8 is read, and the contents of the arithmetic memory 5 specified by the condition are read. Is checked (S34). As a result, when the trace data saving end condition is detected, the trace processing is prohibited (S35), and the process shifts to transmission with the maintenance tool 7 (S6).

If no trace data storage end condition is detected, the process proceeds to the next step. If the trace processing is permitted as a result of executing the check processing (S33, S34), it is checked whether a trigger condition set in the trace condition storage memory 8 has been detected (S41), and the trigger is activated. If detected, a process of switching from the currently used n-th trace data designated point condition to the (n + 1) -th trace data designated point condition is performed (S42). If no trigger has been detected, the process proceeds to the next process without performing any special process.

Next, in accordance with the trace conditions set in the trace condition storage memory 8 (S36), the trace point information for collection stored in the trace condition storage memory 8 is read, and the corresponding trace data in the corresponding operation data memory 5 is read. The data of the point is stored in the trace data storage memory 9 (S12). This process is repeated for the number of trace points set in the trace condition storage memory 8.

When the above processing is completed, transmission with the maintenance tool 7 (S6) is performed. In the transmission process with the maintenance tool 7 (S6), the trace data storage start / end conditions set in the trace condition storage memory 8,
Regardless of the operation state inside the control microcomputer device 1, it is also possible to switch the trace processing permission / prohibition state according to a request from the maintenance tool 7, and to switch whether to use the same trace data designation point condition. . The control microcomputer device 1 repeatedly executes the above processing at a predetermined cycle at a high speed.

As described above, according to the fourth embodiment, the data of the collected trace points stored in the trace data storage memory can be switched before and after the occurrence of a specific event in the plant. Only the data can be selected and collected, and the detailed data of the plant that is truly required can be collected without increasing the capacity of the trace data storage memory, and the detailed data of the plant can be analyzed by analyzing the trace data. Analysis and control program debugging time can be reduced.

FIG. 6 shows a control program process of the control microcomputer device according to the fifth embodiment of the present invention.

In the figure, the same reference numerals as those in FIG. 17 showing the conventional example indicate the same or corresponding parts. The same reference numerals as those in FIG. 4 showing the third embodiment indicate the same or corresponding parts. Further, the block diagram of the control microcomputer device of the present embodiment is the same as that of FIG. 1 shown in the first embodiment. In the fifth embodiment, a plurality of preset microcomputers are set when the trigger condition is satisfied. The characteristic is that the trace data collection cycle is switched to the trace data collection cycle according to a predetermined condition.

Here, the trace condition storage memory 8 stores what point (address) data in the operation memory 5 is what data or what time the control microcomputer 1 manages. Is set, whether or not to start / end the trace data storage processing in the trace data storage memory 9 is set, while information indicating which point data in the arithmetic memory 5 is to be stored in the trace data storage memory 9 is stored. Trigger conditions (or a plurality of trigger conditions) for switching a plurality of trace data collection periods of the operation memory 5 stored in the trace data storage memory 9 are set in advance.

In the figure, the trace condition storage memory 8 and the trace data storage memory 9 are shown one by one for the sake of simplicity, but a plurality of these memories may be provided.

In the above-described control microcomputer device 1, the processing according to the control program shown in FIG. 6 is performed.

First, it is assumed that the first trace data collection cycle condition set in the trace condition storage memory 8 is used (S50). Then, the trace process (data save process) to the trace data storage memory 9 is prohibited (S30). Subsequently, the data fetched from the plant via the external input / output unit 3 is sequentially stored at the specified address of the arithmetic memory 5 (S1).

Next, the control programs are sequentially fetched from the program storage memory 4 (S2), the arithmetic processing is sequentially executed using the data stored in the arithmetic memory 5 according to the instruction code, and the result of the arithmetic processing is calculated. Memory 5
(S3, S4). When the processing of all the control program instructions is completed, the contents of the operation memory 5 are output from the external input / output unit 3 to the plant (S5). Thereby, the plant equipment is controlled by the control microcomputer device 1.

Next, it is checked whether or not the trace processing (data storage processing) to the trace data storage memory 9 is prohibited (S31). If the trace processing is prohibited by the check, the trace data storage start condition information set in the trace condition storage memory 8 is read, and the contents of the arithmetic memory 5 specified by the condition are checked. (S32). As a result, when the trace data storage start condition is detected, the trace process is permitted (S33), and the process proceeds to the next process.

On the other hand, if the trace data storage start condition is not detected, the flow shifts to transmission with the maintenance tool 7 (S6). If the trace processing is not prohibited in the check (S31), the trace data storage end condition information set in the trace condition storage memory 8 is read, and the contents of the arithmetic memory 5 specified by the condition are read. Is checked (S34). As a result, when the trace data storage end condition is detected, the trace processing is prohibited (S35), and the transfer to the maintenance tool (S6) is performed.

If no trace data storage end condition is detected, the process proceeds to the next step. If the trace processing is permitted as a result of executing the check processing (S33, S34), it is checked whether a trigger condition set in the trace condition storage memory 8 has been detected (S41), and the trigger is activated. If it is detected, a process of switching from the currently used nth trace data collection cycle condition to the (n + 1) th trace data collection cycle condition is performed (S52).

If no trigger has been detected,
The processing proceeds to the next processing without performing any special processing.

Next, when the trace data collection cycle based on the trace conditions set in the trace condition storage memory 8 comes (S36), the trace point information stored in the trace condition storage memory 8 is read out, and the corresponding operation data memory 5 is read. Is stored in the trace data storage memory 9 (S12). This process is repeated for the number of trace points set in the trace condition storage memory 8.

When the above processing is completed, transmission with the maintenance tool 7 (S6) is performed. In the transmission process with the maintenance tool 7 (S6), the trace data storage start / end conditions set in the trace condition storage memory 8,
Regardless of the operation state inside the control microcomputer device 1, it is also possible to switch the trace processing permission / prohibition state in accordance with a request from the maintenance tool 7, and to switch the order of the trace data collection cycle condition. . The control microcomputer device 1 repeatedly executes the above processing at a predetermined cycle at a high speed.

According to the fifth embodiment, the trace data cycle for storing data in the trace data storage memory can be changed before and after a specific event occurs in the plant, so that the capacity of the trace data storage memory can be increased. Even without this, it is possible to collect the really necessary detailed data of the plant, and analyze the trace data to analyze the detailed behavior of the plant and shorten the debugging time of the control program.

FIG. 7 shows a control program process of the control microcomputer device according to the sixth embodiment of the present invention.

In the figure, the same reference numerals as those in FIG. 17 showing the conventional example indicate the same or corresponding parts. The same reference numerals as those in FIG. 4 showing the third embodiment indicate the same or corresponding parts. Further, the block diagram of the control microcomputer device of the present embodiment is the same as that of FIG. 1 shown in the first embodiment, and the sixth embodiment uses a plurality of trace conditions of the third embodiment. It is characterized in that a set is provided to switch to a trace condition corresponding to a trigger condition.

Here, the trace condition storage memory 8 stores the data at which point (address) in the arithmetic memory 5 becomes any data, or the time managed by the control microcomputer device 1 indicates which value. Is set, the start / end of the trace data storage processing in the trace data storage memory 9 is set, and the information on which point in the arithmetic memory 5 is stored in the trace data storage memory 9 is set. And a trigger condition (or a plurality of trigger conditions) for switching from a plurality of trace conditions stored in the trace data storage memory 9.

When any point (address) data in the arithmetic memory 5 becomes any data, or
A plurality of trace data matching conditions are set as to what value the time managed by the control microcomputer 1 is to store the data in the trace data storage memory 9.

In the figure, the trace condition storage memory 8 and the trace data storage memory 9 are shown one by one for the sake of simplicity, but a plurality of these memories may be provided.

In the control microcomputer device 1 described above, processing according to the control program shown in FIG. 7 is performed. First, it is assumed that the first trace data matching condition set in the trace condition storage memory 8 is used (S6).
0). Then, the trace processing (data saving processing) to the trace data storage memory 9 is set to the prohibited state (S3).
0). Subsequently, the data fetched from the plant via the external input / output unit 3 is sequentially stored at the specified address of the arithmetic memory 5 (S1).

Next, the control programs are sequentially fetched from the program storage memory 4 (S2), and the arithmetic processing is sequentially executed using the data stored in the arithmetic memory 5 according to the instruction code. The data is stored at the designated address in the arithmetic memory 5 (S3, S4).
When the processing of all the control program instructions is completed, the contents of the operation memory 5 are output from the external input / output unit 3 to the plant (S5). Thereby, the plant equipment is controlled by the control microcomputer device 1.

Next, it is checked whether or not the tracing process (data saving process) to the trace data storage memory 9 is prohibited (S31). If the trace processing is prohibited by the check, the trace data storage start condition information set in the trace condition storage memory 8 is read, and the contents of the arithmetic memory 5 specified by the condition are checked. (S32). As a result, when the trace data storage start condition is detected, the trace process is permitted (S33), and the process proceeds to the next process.

On the other hand, if the trace data storage start condition is not detected, the flow shifts to transmission with the maintenance tool 7 (S6). If the trace processing is not prohibited in the check (S31), the trace data storage end condition information set in the trace condition storage memory 8 is read, and the contents of the arithmetic memory 5 specified by the condition are read. Is checked (S34). As a result, when the trace data saving end condition is detected, the trace processing is prohibited (S35), and the process shifts to transmission with the maintenance tool 7 (S6).

If no trace data storage end condition is detected, the process moves to the next step. If the trace processing is permitted as a result of executing the check processing (S33, S34), it is checked whether a trigger condition set in the trace condition storage memory 8 has been detected (S41), and the trigger is activated. If it is detected, from the n-th trace data matching condition currently used,
A process for switching to the first trace data matching condition is performed (S62).

If no trigger has been detected,
The processing proceeds to the next processing without performing any special processing.

Next, it is determined whether or not the trace conditions match in accordance with the trace conditions set in the trace condition storage memory 8. When the trace conditions match (S36), the trace point information stored in the trace condition storage memory 8 is read. The read data is stored in the trace data storage memory 9 at the corresponding point in the corresponding operation data memory 5 (S1).
2). This process is repeated for the number of trace points set in the trace condition storage memory 8.

When the above processing is completed, transmission to the maintenance tool 7 (S6) is performed. In the transmission process with the maintenance tool 7 (S6), the trace data storage start / end conditions set in the trace condition storage memory 8,
Regardless of the operation state inside the control microcomputer device 1, it is also possible to switch the trace processing permission / prohibition state in accordance with a request from the maintenance tool 7, and to switch the number of trace data matching conditions to be used. The control microcomputer device 1 repeatedly executes the above processing at a predetermined cycle at a high speed.

As described above, according to the sixth embodiment, before and after a specific event has occurred in the plant, the trace data matching condition for saving in the trace data storage memory can be switched. Without having to increase the amount of data, it is possible to collect the detailed data of the plant that is truly required, and analyze the trace data to analyze the detailed behavior of the plant and reduce the debugging time of the control program. .

FIG. 8 is a block diagram of a control microcomputer device according to a seventh embodiment of the present invention. The same reference numerals as those in FIG. 16 denote the same or corresponding parts. 16 is different from FIG. 16 in that a trace condition storage memory 8, a trace data storage memory 9, and a trace data storage memory 10 are provided.

Here, the trace condition storage memory 8 stores what point (address) data in the operation memory 5 becomes what data, or the time managed by the control microcomputer 1 shows what value Is set, whether or not to start / end the trace data storage processing in the trace data storage memory 9 is set, while information indicating which point data in the arithmetic memory 5 is to be stored in the trace data storage memory 9 is stored. The storage conditions for copying data in the trace data storage memory 9 to the trace data storage memory 10 are set in advance.

The trace data storage memory 9 is a memory for sequentially storing data at designated points in the arithmetic data memory 5 when various conditions set in the trace condition storage memory 8 are satisfied. The trace data storage memory 10 is a memory for storing the contents of the trace data storage memory 9.

In the figure, the trace condition storage memory 8, the trace data storage memory 9, and the trace data storage memory 10 are shown one by one for the sake of simplicity, but a plurality of these memories are provided. May be.

In the control microcomputer device 1 described above, the processing according to the control program shown in FIG. 9 is performed.

First, the trace processing (data storage processing) to the trace data storage memory 9 is disabled (S3).
0). Then, the data fetched from the plant via the external input / output unit 3 is sequentially stored at the designated address of the arithmetic memory 5 (S1). Next, control programs are sequentially fetched from the program storage memory 4 (S2),
The arithmetic processing is sequentially executed using the data stored in the arithmetic memory 5 in accordance with the instruction code, and the result of the arithmetic processing is stored at the designated address of the arithmetic memory 5 (S3, S4).

When the processing of all the control program instructions is completed, the contents of the operation memory 5 are output from the external input / output unit 3 to the plant (S5). Thereby, the plant equipment is controlled by the control microcomputer device 1. When the processing of all the control program instructions is completed, the contents of the operation memory 5 are output from the external input / output unit 3 to the plant (S5). Thereby, the plant equipment is controlled by the control microcomputer device 1.

Next, it is checked whether or not the trace processing (data storage processing) to the trace data storage memory 9 is prohibited (S31). If the trace processing is prohibited by the check, the trace data storage start condition information set in the trace condition storage memory 8 is read, and the contents of the arithmetic memory 5 specified by the condition are checked. (S32). As a result, when the trace data storage start condition is detected, the trace process is permitted (S33), and the process proceeds to the next process.

On the other hand, when the trace data storage start condition is not detected, the flow shifts to transmission with the maintenance tool 7 (S6). Further, if the trace processing is not prohibited in the check (S31), the trace condition storage memory 8
Is read out, and the contents of the arithmetic memory 5 specified by the condition are checked (S34). As a result, when the trace data storage end condition is detected, the trace processing is prohibited (S35), and the process proceeds to the next processing.

If the condition for terminating the trace data storage is not detected, the processing shifts to the next processing. If the trace processing is permitted as a result of performing the check processing (S33, S34), the trace processing is performed according to the trace condition set in the trace condition storage memory 8 (S36).
The trace point information stored in the trace condition storage memory 8 is read, and the data of the corresponding point in the corresponding operation data memory 5 is stored in the trace data storage memory 9 (S12). This process is repeated for the number of trace points set in the trace condition storage memory 8.

When the above processing is completed, it is next checked whether or not the data storage condition for the trace data storage memory 10 set in the trace condition storage memory 8 is satisfied (S71). If the result satisfies the storage condition, all data in the trace data storage memory 9 at that time is copied (saved) to the trace data storage memory 10 (S7).
2).

When the above processing is completed, transmission with the maintenance tool 7 (S6) is performed. In the transmission processing with the maintenance tool 7 (S6), the trace processing permission / prohibition state is switched according to a request from the maintenance tool 7 regardless of the trace data storage start / end conditions set in the trace condition storage memory 8. Alternatively, it is possible to set conditions for executing a data copy process to the trace data storage memory 10. Control microcomputer device 1
Performs the above processing at high speed repeatedly at a predetermined cycle.

As described above, according to the seventh embodiment, even when an event for which data collection is to be performed has occurred a plurality of times, trace data at the time of occurrence of each event can be saved without missing. This eliminates the need to connect a maintenance tool and download trace data every time an event occurs, and to collect data for multiple events at one time. By analyzing the trace data, the detailed behavior of the plant Analysis and control program debugging time can be reduced.

FIG. 10 shows a control program process of the control microcomputer device according to the eighth embodiment of the present invention.

In the figure, the same reference numerals as in FIG. 17 showing the conventional example indicate the same or corresponding parts. The same reference numerals as those in FIG. 4 showing the third embodiment indicate the same or corresponding parts. The block diagram of the control microcomputer device of the present embodiment is the same as FIG. 1 shown in the first embodiment or FIG. 8 shown in the seventh embodiment.

Here, the trace condition storage memory 8 stores what point (address) data in the operation memory 5 is what data or what time the control microcomputer 1 manages. Is set, whether or not to start / end the trace data storage processing in the trace data storage memory 9 is set, while information indicating which point data in the arithmetic memory 5 is to be stored in the trace data storage memory 9 is stored. Storage conditions for copying data in the trace data storage memory 9 to the trace data storage memory 10 and transmission conditions for automatically transmitting the data in the trace data storage memory 9 or the trace data storage memory 10 to the maintenance tool 7. Is set in advance.

The trace data storage memory 9 is a memory for sequentially storing data at designated points in the arithmetic data memory 5 when various conditions set in the trace condition storage memory 8 are satisfied. The trace data storage memory 10 is a memory for storing the contents of the trace data storage memory 9.

In the figure, the trace condition storage memory 8, the trace data storage memory 9, and the trace data storage memory 10 are shown one by one for the sake of simplicity, but a plurality of these memories are provided. May be.

In the control microcomputer device 1 described above, the processing according to the control program shown in FIG. 10 is performed.

First, the trace processing (data storage processing) to the trace data storage memory 9 is disabled (S3).
0). Then, the data fetched from the plant via the external input / output unit 3 is sequentially stored at the designated address of the arithmetic memory 5 (S1). Subsequently, the control programs are sequentially fetched from the program storage memory 4 (S
2) The arithmetic processing is sequentially executed using the data stored in the arithmetic memory 5 in accordance with the instruction code, and the result of the arithmetic processing is stored in the arithmetic memory 5 at the designated address (S3, S4). . When the processing of all the control program instructions is completed, the contents of the operation memory 5 are output from the external input / output unit 3 to the plant (S5). Thereby, the plant equipment is controlled by the control microcomputer device 1.

Next, it is checked whether or not the tracing process (data saving process) to the trace data storage memory 9 is prohibited (S31). If the trace processing is prohibited by the check, the trace data storage start condition information set in the trace condition storage memory 8 is read, and the contents of the arithmetic memory 5 specified by the condition are checked. (S32). As a result, when the trace data storage start condition is detected, the trace process is permitted (S33), and the process proceeds to the next process.

On the other hand, if the trace data storage start condition is not detected, the flow shifts to transmission with the maintenance tool 7 (S6). If the trace processing is not prohibited in the check (S31), the trace data storage end condition information set in the trace condition storage memory 8 is read, and the contents of the arithmetic memory 5 specified by the condition are read. Is checked (S34). As a result, when the trace data storage end condition is detected, the trace processing is prohibited (S35), and the process proceeds to the next processing.

If the condition for terminating the storage of the trace data is not detected, the process proceeds to the next step. If the trace processing is permitted as a result of performing the check processing (S33, S34), the processing is performed according to the trace condition set in the trace condition storage memory 8 (S3).
6), the trace point information stored in the trace condition storage memory 8 is read, and the data of the corresponding point in the corresponding operation data memory 5 is stored in the trace data storage memory 9 (S12). This process is repeated for the number of trace points set in the trace condition storage memory 8.

When the above processing is completed, it is checked whether or not the data storage condition for the trace data storage memory 10 set in the trace condition storage memory 8 is satisfied (S71). When the result satisfies the storage condition, all the data in the trace data storage memory 9 at that time is copied (saved) to the trace data storage memory 10 (S7).
2).

Next, it is checked whether the condition for transmitting the trace data to the maintenance tool 7 set in the trace condition storage memory 8 is satisfied (S80). If the result satisfies the transmission condition, the trace data storage memory 9 at that time
Alternatively, it is necessary to transmit the data in the trace data storage memory 10 to the maintenance tool 7 (S81). When the above processing is completed, transmission to the maintenance tool 7 is performed (S6).
In this transmission (S6) with the maintenance tool 7, the maintenance tool 7
It is determined whether or not it is necessary to transmit the trace data to the maintenance tool 7. If the transmission processing is necessary, the trace data is automatically transmitted to the maintenance tool 7.

The transmission processing with the maintenance tool 7 (S6)
Then, regardless of the trace data storage start / end conditions set in the trace condition storage memory 8, the maintenance tool 7
It is also possible to switch the trace processing permission / prohibition state and to set conditions for executing data copy processing to the trace data storage memory 10 in response to a request from the user. The control microcomputer device 1 repeatedly executes the above processing at a predetermined cycle at a high speed.

As described above, according to the eighth embodiment, when a preset event occurs, the trace data information stored in the control microcomputer is automatically transmitted to the maintenance tool. By saving the trace data on the hard disk etc. on the side, the trace data to be collected can be automatically collected as long as there is free space on the hard disk, without being limited by the memory capacity for storing the trace data information on the control microcomputer side. It becomes possible to collect it.

Next, a maintenance tool for a control microcomputer device according to a ninth embodiment of the present invention will be described with reference to FIG.

FIG. 11 is a block diagram of a maintenance tool applied to the present invention. In FIG. 11, the same reference numerals as those in FIG. 18 showing the conventional example indicate the same or corresponding parts. The point is that a trace condition setting unit 27 is provided.

In FIG. 11, the maintenance tool 7A includes an input / output unit 23, a program storage unit 24, a display unit 25, a transmission unit 26, a trace condition setting unit 27, and a control unit 22.

The display unit 25 displays a control program and the like. The input / output unit 23 allows the operator to input information according to the display unit 25 using a keyboard, a mouse, and the like, and to store information such as a floppy disk. It inputs and outputs data to and from the medium. The program storage unit 24 stores the same program as the control program stored in the control microcomputer device 1. Transmission unit 26
Transmits the trace conditions set by the trace condition setting unit 27 to the control microcomputer device 1, and transmits the trace data storage memory 9 or the data in the trace data storage memory 10 stored in the control microcomputer device 1. Receive.

The control unit 22 sets conditions to the trace condition setting unit 27 in accordance with the information specified by the operator via the input / output unit 23, passes the set conditions to the transmission unit 26, and controls the control microcomputer. The condition is set in the trace condition storage memory 8 of the device 1. In accordance with an instruction from the operator, the control program is retrieved from the program storage unit 24 and displayed on the display unit 25, and the trace data information received from the control microcomputer device 1 via the transmission unit 26 is displayed on the display unit 25. .

The processing of the maintenance tool 7A will be described below with reference to FIG.

First, the operation by the operator is input / output unit 2
5 (T1). It is checked whether the operation instruction is a trace condition setting request (T2). If the operation instruction is a trace condition setting request, the trace condition is input using the input / output unit 23 and stored in the trace condition setting unit 27 (T2).
3).

Next, the set trace conditions are transmitted to the transmission unit 2.
6 to the control microcomputer device 1 (T4), and waits for an operation instruction from the next operator (T4).
Return to 1).

If the operation instruction is not a trace condition setting request, it is checked whether the operation instruction is a trace data display request (T5). If the operation instruction is a request, program information is retrieved from the program storage unit 24 and displayed. (T6).

Next, the trace data stored in the control microcomputer 1 is received via the transmission section 26 (T7). Then, the received trace data is superimposed on the display unit 25 on which the program information is displayed, and is sequentially displayed (T8). The display update cycle of the trace data at this time is the cycle specified by the operator when the operator inputs an operation instruction (T1). When the above processing is completed, the process returns to a state of waiting for an operation instruction from the next operator (T1).

As described above, according to the ninth embodiment, the display section of the maintenance tool reproduces and displays the operation data and the plant data, which are controlled at high speed inside the control microcomputer device, at a visual speed without missing. This makes it possible to analyze the detailed behavior of the plant and reduce the debugging time of the control program.

Next, the program processing of the maintenance tool of the control microcomputer device according to the tenth embodiment of the present invention will be described with reference to FIG.

FIG. 1 shows a ninth embodiment.
The same reference numerals as 2 indicate the same or corresponding parts. The block diagram of the maintenance tool of the control microcomputer device of the present embodiment is the same as that of FIG. 11 shown in the ninth embodiment.

In the above-described maintenance tool 7B of the control microcomputer device, processing according to the control program shown in FIG. 13 is performed.

First, the operation instruction of the operator is transmitted to the input / output unit 2.
5 (T1). It is checked whether the operation instruction is a trace condition setting request (T2). If the operation instruction is a trace condition setting request, the trace condition is input using the input / output unit 23 and stored in the trace condition setting unit 27 (T2).
3).

Next, the set trace conditions are transmitted to the transmission unit 2.
6 to the control microcomputer 1 (T4), and returns to a state of waiting for an operation instruction from the next operator. If the operation instruction is not a trace condition setting request, it is checked whether it is a trace data display request (T
5) If it is a request, the program information is retrieved from the program storage unit 24 and displayed on the display unit 25 (T
6).

Next, the trace data stored in the control microcomputer 1 is received via the transmission section 26 (T7). Then, the operator inputs a trace data display method using the input / output unit 23 (T
9) It is checked whether the input instruction is a display end request (T10). If it is not a display end request, according to the indicated display method, the previously received trace data is displayed on the display unit 25 on which the program information is displayed. (T11), and shifts to a state of waiting for a display method instruction from the next operator (T9).

The display method of the trace data that can be instructed by the operator in the processing of (T9) is to display the trace data at the designated time, the trace data indicating the designated data pattern, etc. This is trace data after one event. When the above processing is completed, the process returns to a state of waiting for an operation instruction from the next operator (T1).

As described above, according to the tenth embodiment, on the display unit of the maintenance tool, the operation data and the plant data which are controlled at high speed inside the control microcomputer device are successively reproduced without missing one trace data at a time. Alternatively, since reverse reproduction display is possible, it is possible to analyze the detailed behavior of the plant and shorten the debugging time of the control program.

Next, the maintenance tool for the control microcomputer device according to the eleventh embodiment of the present invention is shown in FIG.
This will be described with reference to FIG.

FIG. 14 is a block diagram of a maintenance tool applied to the present invention.
3, a program storage unit 24, a display unit 25, a transmission unit 26, a trace condition setting unit 27, a trace data storage unit 28, a known data storage unit 29, and a control unit 22.

FIG. 14 shows a maintenance tool 7 applied to the present invention.
18 shows the block configuration diagram of FIG. 18, and the same reference numerals as in FIG. 18 showing the conventional example indicate the same or corresponding parts. In FIG. 14, the difference from FIG. 18 is that the trace condition setting unit 27 and the trace data storage unit 28 The point is that a data storage unit 29 is provided.

In FIG. 14, the maintenance tool 21 includes an input / output unit 23, a program storage unit 24, a display unit 25, a transmission unit 26, a trace condition setting unit 27, a trace data storage unit 28, a known data storage unit 29, and a control unit. 22.

The display unit 25 displays a control program and the like. The input / output unit 23 allows the operator to input information according to the display unit 25 using a keyboard, a mouse, or the like, or to store information such as a floppy disk. It inputs and outputs data to and from the medium.

The program storage section 24 stores the same program as the control program stored in the control microcomputer 1. The transmission unit 26 transmits the trace conditions set by the trace condition setting unit 27 to the control microcomputer device 1, and stores the trace data storage memory 9 or the trace data storage memory 10 stored in the control microcomputer device 1.
Receive data.

The control unit 22 sets conditions to the trace condition setting unit 27 in accordance with the information specified by the operator via the input / output unit 23, passes the set conditions to the transmission unit 26, and controls the control microcomputer. A trace condition is set in the device 1. Further, according to the information instructed by the operator via the input / output unit 23, the known data storage unit 2
9 stores the known data. In accordance with an instruction from the operator, the control program is retrieved from the program storage unit 24 and displayed on the display unit 25, and the trace data information received from the control microcomputer device 1 via the transmission unit 26 is stored in the trace data storage unit 28. It is stored and displayed on the display unit 25.

Hereinafter, the processing of the maintenance tool 7B will be described with reference to FIG.

First, it is checked whether or not there has been an operation request from the operator (T20). If there is no operation request from the operator, it is next checked whether or not trace data has been received from the control microcomputer device 1 (T21). If the trace data has been received, the received trace data is stored in the trace data storage unit 2.
8 (T22). Then, the received trace data is collated with the data stored in the known data storage unit 29 (T23), and the result is displayed on the display unit 25. When the above process is completed, the process returns to the process of checking for the presence or absence of an operation instruction from the operator (T20).

When the presence or absence of the operation request is detected in the check of the presence or absence of the operation request from the operator (T20), the processing according to the following operation instruction from the operator is performed. It is checked whether the operation instruction from the operator is a known data setting request (T25), and in the case of a known data setting request, known data is input using the input / output unit 23 and stored in the known data storage unit 29 ( T26). This process is repeated until the operator instructs the end of the known data input. When the known data input process is completed, the process returns to the process of checking the presence or absence of an operation instruction from the operator (T20).

Next, it is checked whether the operation instruction from the operator is a request to collate the known data and the trace data (T27). In this case, which trace data and the known data are stored using the input / output unit 23 is checked. Is to be selected by the operator (T28). Then, the instructed trace data is read from the trace data storage unit 28, collated with the data set in the known data storage unit 29 (T29), and the result is displayed on the display unit 25. Upon completion of the above process, the process returns to the process of checking for the presence or absence of an operation instruction from the operator (T20).

Next, it is checked whether or not the operation instruction from the operator is a trace condition setting request (T2). If the operation instruction is a trace condition setting request, the trace condition is input using the input / output unit 23, and the trace data is input. It is stored in the condition setting unit 27 (T3). Then, the set trace conditions are passed to the transmission unit 26, and the control microcomputer 1
(T4), and when the known data input processing is completed,
Check for the presence of an operation instruction from the operator again (T20)
Return to the processing of.

If the operation instruction is not a trace condition setting request, it is checked whether it is a trace data display request (T5). If the operation instruction is a display request, program information is extracted from the program storage unit 24 and is displayed on the display unit 25. It is displayed (T6). Then, the trace data stored in the control microcomputer device 1 is received via the transmission unit 26 (T7). Further, the received trace data is superimposed on the display unit 25 on which the program information is displayed, and sequentially displayed (T9 to T11).

The display update cycle of the trace data at this time is set at the time of input of an operation instruction from the operator (T1).
This is the cycle specified by the operator. Upon completion of the above process, the process returns to the process of checking for the presence or absence of an operation instruction from the operator (T20).

As described above, according to the eleventh embodiment, it is automatically diagnosed whether or not the control microcomputer performs the control of the plant as set in advance without the intervention of the human system. It becomes possible.

[0167]

As described above, according to the first aspect of the present invention, data corresponding to the address information of the input point is sequentially stored in the trace data storage memory at the time of the trace data collection cycle based on the predetermined trace condition data. The necessary data can be written to the operation memory and another trace data storage memory without missing. Therefore, necessary data is not updated and erased as in the related art, and the operation of the control program and the internal operation of the microcomputer device can be confirmed by using the data written in the trace data storage memory with the maintenance tool. .

According to the second aspect of the present invention, when the data of the designated input point of the operation memory, which is the predetermined trace condition data, satisfies a predetermined condition, the data is collected according to the address information of the input point to be collected. Since the data is written to the trace data storage memory, only data that is truly necessary when a specific event occurs can be efficiently written to the trace data storage memory. Therefore, the debugging work of the control program can be performed accurately and quickly, information about the apparatus can be easily obtained when a specific event occurs in the plant, and the trace data storage memory can have a relatively small capacity.

According to the invention of claim 3, storage of the trace data is started when the plant has a specific condition, and storage of the trace data is stopped when the plant has another specific condition. Therefore, it is possible to obtain trace data only in a specific case that is truly necessary, to efficiently debug and the like, to perform verification of the apparatus itself in a short time, and to reduce the capacity of the trace data storage memory. .

According to the fourth aspect of the present invention, when a predetermined trigger condition is satisfied, the trace data collection point is switched from a plurality of sets of trace data collection points to a corresponding trace data collection point. Only the data that is really needed can be selected and collected. Therefore, the operation of selecting necessary data from the collected data is not required, and the detailed behavior analysis of the plant and the debugging of the control program can be efficiently performed.

According to the fifth aspect of the present invention, when a predetermined trigger condition is satisfied, a plurality of sets of trace data collection cycle information are switched to a corresponding trace data collection cycle. Data can be collected at a necessary trace data collection cycle. Therefore, necessary data can be collected without increasing the capacity of the trace data storage memory, and the detailed behavior analysis of the plant and the debugging of the control program can be efficiently performed.

According to the sixth aspect of the present invention, when a predetermined trigger condition is satisfied, a plurality of sets of trace data matching conditions are switched to a corresponding trace data matching condition. Only the data that is really needed can be selected and collected. Therefore,
The work of selecting necessary data from the collected data becomes unnecessary, and the detailed behavior analysis of the plant and the debugging of the control program can be efficiently performed.

According to the seventh aspect of the present invention, the trace data is stored in the auxiliary trace data storage memory even when the event of the plant occurs a plurality of times. Minutes of trace data are collected without fail. Therefore, the detailed behavior of the plant can be analyzed, and the debugging time of the control program can be reduced.

According to the invention of claim 8, when a preset transmission condition is satisfied, the data in the trace data storage memory or the trace data storage memory is transmitted to the maintenance tool, and the data is stored on the maintenance tool side. As a result, a large amount of data can be saved without omission as long as there is free space on the hard disk on the maintenance tool side. Therefore, the event of the plant including the past history can be analyzed.

According to the ninth aspect of the present invention, the trace data is fetched from the control microcomputer device to the maintenance tool without omission, and the control program and the trace data are reproduced and displayed at a visible speed. High-speed processed data can be displayed without any loss, the behavior of the plant can be easily and accurately analyzed, and the debugging of the control program can be performed efficiently.

Further, according to the tenth aspect of the present invention, the control program and the trace data are compared on the maintenance tool side, and the trace data is reproduced or displayed in reverse order without missing one trace data. Thus, the analysis of the behavior of the plant and the debugging of the control program can be reliably performed.

According to the eleventh aspect of the present invention, the trace data is compared with the known data, and the result is output, so that it is possible to determine whether or not the control microcomputer device operates normally. Can be diagnosed without intervention, and can be processed efficiently.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a control microcomputer device according to a first embodiment of the present invention.

FIG. 2 is a flowchart illustrating a processing procedure of a control microcomputer device according to the first embodiment of the present invention.

FIG. 3 is a flowchart illustrating a processing procedure of a control microcomputer device according to a second embodiment of the present invention.

FIG. 4 is a flowchart illustrating a processing procedure of a control microcomputer device according to a third embodiment of the present invention.

FIG. 5 is a flowchart illustrating a processing procedure of a control microcomputer device according to a fourth embodiment of the present invention.

FIG. 6 is a flowchart illustrating a processing procedure of a control microcomputer device according to a fifth embodiment of the present invention.

FIG. 7 is a flowchart illustrating a processing procedure of a control microcomputer device according to a sixth embodiment of the present invention.

FIG. 8 is a configuration diagram of a control microcomputer device according to a seventh embodiment of the present invention.

FIG. 9 is a flowchart illustrating a processing procedure of a control microcomputer device according to a seventh embodiment of the present invention.

FIG. 10 is a flowchart showing a processing procedure of a control microcomputer device according to an eighth embodiment of the present invention.

FIG. 11 is a configuration diagram of a maintenance tool of a control microcomputer device according to a ninth embodiment of the present invention.

FIG. 12 is a flowchart illustrating a processing procedure of a maintenance tool of the control microcomputer device according to the ninth embodiment of the present invention.

FIG. 13 is a flowchart showing a processing procedure of a maintenance tool of the control microcomputer device according to the tenth embodiment of the present invention.

FIG. 14 is a configuration diagram of a maintenance tool of a control microcomputer device according to an eleventh embodiment of the present invention.

FIG. 15 is a flowchart illustrating a processing procedure of a maintenance tool of the control microcomputer device according to the eleventh embodiment of the present invention.

FIG. 16 is a configuration diagram of a control microcomputer device showing a conventional example.

FIG. 17 is a flowchart showing a processing procedure of a conventional control microcomputer device.

FIG. 18 is a block diagram showing a maintenance tool of a conventional control microcomputer device.

[Explanation of symbols]

 Reference Signs List 1 control microcomputer device 2 main control unit 3 external input / output unit 4 program storage memory 5 operation memory 6 transmission unit 7, 7A, 7B maintenance tool 8 trace condition storage memory 9 trace data storage memory 10 trace data storage memory 22 control Unit 23 input / output unit 24 program storage unit 25 display unit 26 transmission unit 27 trace condition setting unit 28 trace data storage unit 29 known data storage unit

Claims (11)

[Claims] 1. An external input / output unit for taking in plant data and outputting the data to the plant, a program storage memory for storing a control program for operation processing, and a plant including operation data and obtained operation result data. An operation memory for storing data to be input / output to / from, a transmission control unit for controlling transmission of data to / from a maintenance tool, and performing an operation using the operation data by executing the control program for each control cycle. A control microcomputer device comprising: a main control unit that stores the obtained operation result data in the operation memory and outputs the operation result data to the plant from the external input / output unit; the memory corresponding to the operation memory; The address information of the input point and the trace data collection cycle for reading and storing the A trace condition storage memory to be set; a trace data storage memory for reading and reading data from the arithmetic memory; and a trace data collection cycle based on the trace condition data, the arithmetic operation according to the address information of the set input point. Means for reading out corresponding data from the memory and sequentially writing the data into the trace data storage memory. 2. An external input / output unit for taking in plant data and outputting the data to the plant, a program storage memory for storing a control program for operation processing, and a plant containing operation data and obtained operation result data. An operation memory for storing data to be input / output to / from, a transmission control unit for controlling transmission of data between maintenance tools, and performing an operation using the operation data by executing the control program in each control cycle. And a main control unit for storing the calculated operation result data in the operation memory and outputting the operation result data from the external input / output unit to the plant. Trace condition storage memo that is stored as a trace condition for reading only when the data of the input point that has been entered meets the predetermined condition A trace data storage memory for reading and reading data from the operation memory; and reading the data from the operation memory according to address information of an input point to be collected when a trace condition based on the trace condition data is satisfied. Means for sequentially writing to a storage memory. 3. The trace condition storage memory sets trace data storage start condition information and trace data storage end condition information. When the trace data storage start condition information indicates that the trace is permitted and the trace condition is satisfied, the trace condition storage memory sets the trace data storage start condition information. Means for reading data from an arithmetic memory and sequentially starting writing to the trace data storage memory, and terminating the writing when the trace data storage end condition information indicates that the trace is prohibited. 3. The control microcomputer device according to claim 1 or 2. 4. The trace condition storage memory switches a plurality of trace conditions in which a plurality of sets of address information of input points for specifying a collection point to be written from the operation memory to the trace condition storage memory are set, and the trace conditions are switched. 4. A storage device for storing a trigger condition and a switching means for executing processing of a trace condition of a corresponding collection point when the trigger condition is satisfied.
The control microcomputer device as described in the above. 5. The trace condition storage memory includes a plurality of trace conditions in which a plurality of pieces of trace data collection cycle information of data to be written from the operation memory to the trace data storage memory are set, and a trigger condition for switching these trace conditions. 4. The control microcomputer device according to claim 3, further comprising means for storing and switching to execute processing of a trace data collection cycle condition when the trigger condition is satisfied. 6. The trace condition storage memory stores a trace data match condition in which a plurality of trace data match conditions set from the operation memory to the trace data storage memory are set, and a trigger condition for switching the trace data match conditions. 4. The control microcomputer device according to claim 3, further comprising means for switching so as to execute the processing of the trace data matching condition when the trigger condition is satisfied. 7. An auxiliary trace data storage memory is provided separately from the trace data storage memory, and when data storage conditions set in the trace condition storage memory are detected, all data in the trace data storage memory is converted to the auxiliary data. 7. The control microcomputer device according to claim 3, further comprising means for copying to a trace data storage memory. 8. A means for transmitting data of said trace data storage memory or said auxiliary trace data storage memory to said maintenance tool via a transmission control unit when a data transmission condition stored in said trace condition storage memory is detected. The control microcomputer device according to any one of claims 3 to 7, further comprising: 9. A control unit for displaying a control program or calculation data of a control microcomputer device on a screen, an input unit for inputting a request by an operator, a program storage unit for storing the control program, and a control microcomputer. A trace condition setting unit that sets a trace data condition for writing data of an operation memory provided in a computer device to a trace data storage memory; and a transmission unit that transmits data between a transmission control unit of a control microcomputer device. Fetching a control program from the program storage unit in accordance with a display request from the input unit and displaying the control program on the display unit, while fetching trace data from a trace data storage memory of a control microcomputer based on the displayed control program, Playback with visible cycle And a control unit for setting a trace condition by the trace condition setting unit in accordance with the trace condition setting request from the input unit and transmitting the trace condition to a trace data condition storage memory provided in the control microcomputer device. Maintenance tool for control microcomputer device. 10. A maintenance tool for a control microcomputer device according to claim 9, further comprising means for sequentially displaying said trace data on a display unit one by one trace data. 11. A known data storage unit for storing known data from the input unit, a trace data storage unit for storing trace data fetched from the control microcomputer device, and storing the known data and the trace data. 11. The maintenance tool for a control microcomputer device according to claim 9, further comprising means for checking.