JP5219782B2 - Sequencer device - Google Patents

Description

  The present invention relates to a sequencer device that performs sequence control of devices to be controlled.

  Conventionally, in sequencer devices (hereinafter simply referred to as “sequencer”), it is easy to develop a program, such as determining the quality of sequence programs, identifying short-term faults, and reducing communication load by reducing the amount of monitoring data. Various technical studies for the purpose of improving production efficiency are being studied. In addition, power saving control is also regarded as important.

  For example, Patent Document 1 below describes a power saving control system that can also be applied to a sequencer. In this system, the operation mode transition degree is obtained based on the operation history of the control target device, and the operation mode of the control target device is determined and determined using the history of power consumption and the target value of power consumption. By controlling the device in the operation mode, power saving control according to the behavioral characteristics of the user is realized.

JP 2007-259647 A

  The sequence program controls the operation of each control target device according to a predetermined order. It detects changes in the status of input / output devices connected to each control target device, and sets each output state according to each detection result. It consists of a series of processing to change. Therefore, when each process is defined as an event having an input / output state change of the input / output device as a starting point and an ending point, a series of processes of the sequence program is configured as a sequential process of event groups.

  For example, when considering a sequencer in a factory, if the production line is in a self-running state and an aperiodic event such as an interrupt process due to communication from another device does not occur, the event is activated / deactivated The timing and the active section are periodically dependent on the system configuration at the time of installation of the production line and the control specification of the device to be controlled in the sequence program. In addition, when an event is activated starting from the completion of the operation of the control target device before that, the sequencer waits for the control target device from the start to the completion of the operation, but the control target device waits for the operation completion. In this section, there are few calculation requests for hardware (CPU, memory, bus) in the sequencer, and it is often possible to shift to the power saving state.

  On the other hand, in order to set the transition condition to the power saving state (when to make the transition to the power saving state) in the sequencer that performs such an operation, the sequencer operator needs to aperiodically It is necessary to determine the timing (condition) to shift to the power saving state and the timing to return to the normal state from the power saving state after analyzing the event occurrence history etc. There was a problem that the work load on the analysis processing was very large.

  In addition, in the power saving control described in Patent Document 1, in order to predict an operation mode according to an aperiodic process such as a user operation of a personal computer, a history of operation states and operation states acquired by actually operating an electronic device There is a problem that it is necessary to prepare a histogram of the start time section, duration, and transition occurrence frequency of the operation mode in advance.

  The present invention has been made in view of the above, and it is possible to set a transition condition to a power saving state (power saving mode) in consideration of both a periodic event and an aperiodic event. An object of the present invention is to obtain a sequencer device that can reduce the workload of an operator when setting conditions.

  It is another object of the present invention to provide a sequencer device that can save power in consideration of both periodic and non-periodic events.

  In order to solve the above-described problems and achieve the object, the present invention provides a sequencer device that operates in a power-saving mode in which power consumption is reduced than usual when a condition set by a user is satisfied, Among the events that occur periodically during operation of the program (periodic events) and events that occur aperiodically (non-periodic events), an operation state monitoring means that detects the start and end of a specific event, and a power-saving mode And an operation state display unit that displays each detection result by the operation state inspection unit as an event occurrence history when the user tries to set start and end conditions.

  According to the present invention, the occurrence history of the aperiodic event in the active section of the periodic event can be referred to by the operator of the sequencer device, and when setting the start / end conditions of the power saving mode, It is possible to take into account and reduce the workload of the operator for analyzing the event occurrence history, which is necessary for narrowing down the section that can save power when setting (the section that sets the power saving mode). There is an effect that it is possible.

  Embodiments of a sequencer (sequencer device) according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration example of a first embodiment of a sequencer according to the present invention. As shown in the figure, the sequencer of the present embodiment includes an input unit 1, a monitoring event setting unit 2, a monitoring event setting storage unit 3, a program execution unit 4, an operation state monitoring unit 5, an event occurrence history storage unit 6, and an operation state. A display unit 7, an H / W operation state setting unit 8, an H / W operation state setting storage unit 9, and an H / W operation state control unit 10 are provided.

  The input unit 1 includes an operation panel and the like, and is used for operation of a sequencer operator (hereinafter simply referred to as an operator). The monitoring event setting unit 2 acquires event information to be set as a monitoring target of the operation state monitoring unit 5 via the input unit 1. In the sequencer according to the present invention, an event periodically generated by the operation of the sequence program (hereinafter referred to as a periodic event) and its activation time, and an event that occurs aperiodically such as interrupt processing (hereinafter referred to as an aperiodic event Can be set as a monitoring target, and the monitoring event setting unit 2 acquires such information (information of an event set as a monitoring target). The monitoring event setting storage unit 3 stores the setting information of the monitoring target event acquired by the monitoring event setting unit 2. The program execution unit 4 executes a sequence program. The operation state monitoring unit 5 generates a monitoring target event (hereinafter referred to as a monitoring event) and the operation of hardware (CPU, memory, bus) inside the sequencer according to the setting information stored in the monitoring event setting storage unit 3. State changes such as frequency and drive voltage (changes in the H / W operation state) are monitored, and when these are detected, the information is passed to the event occurrence history storage unit 6 together with information on the occurrence time. The event occurrence history storage unit 6 stores the information received from the operation state monitoring unit 5 as event history data. The operation state display unit 7 displays event setting information stored in the monitoring event setting storage unit 3 and event history data stored in the event occurrence history storage unit 6 as necessary. The H / W operation state setting unit 8 is an H / W operation state change start condition, H / W operation, which is set by the operator using the input unit 1 with reference to the operation state displayed on the operation state display unit 7. Information on the duration after the state change and the interruption cycle of the H / W operation state change is acquired. The information acquired by the H / W operation state setting storage unit 9 and the H / W operation state setting unit 8 is stored as the H / W operation state setting. The H / W operation state control unit 10 follows the H / W operation state setting stored in the H / W operation state setting storage unit 9, and the power saving control target H / W (the hardware for the power saving control target) in the sequencer. The operation state of the CPU, the memory, and the bus is controlled, and the operation in the power saving mode (power saving state) and the operation in the non-power consumption mode (non power saving state) are switched.

  Subsequently, the operation of the sequencer according to the present embodiment will be described in detail. First, the pre-setting that is performed before the sequencer starts the sequence control will be described.

  The monitoring event setting unit 2 uses the input unit 1 and has an event in which an input / output state change of an input / output device equipped with a sequencer (input relay, output relay, timer, counter, internal relay, etc.) is the start or end point of an active section Among the (periodic events), when the operation of registering the periodic event to be monitored is performed by a sequencer user (operator), information on the registered periodic event of the monitoring target is acquired. In addition, when an operator performs an operation to register any of the interrupt processing programs generated by communication from other control devices as a monitored event, the registered interrupt processing program (non-periodic event) Get information. In addition, when the monitoring event setting unit 2 acquires information on a periodic event or an aperiodic event, the monitoring event setting unit 2 passes the information to the monitoring event setting storage unit 3 and stores the information. Thereby, the setting of the monitoring event is completed. The monitoring event setting storage unit 3 stores the information (setting information) received from the monitoring event setting unit 2 as, for example, a data array.

  FIG. 2 is a diagram illustrating a setting example of the sequence program and the monitoring target event. In this example, EventA and EventB are registered as periodic events to be monitored. As shown in “monitored event setting information” in FIG. 2, EventA is an event that is activated when the output relay Y0 changes to the ON state, and deactivated when the input relay X1 changes to the ON state. In the active section, the operation time (5000 ms) of the control target device connected to Y0 is set according to the “production line specification” shown in the figure. Event B is an event that is activated when the output relay Y1 changes to the ON state, and is deactivated when the output relay Y2 changes to the ON state. In the active section, Y1 The operating time (8000ms) of the control target device connected to is set. In addition, EventC and EventD are respectively set as monitored events (non-periodic events) related to the interrupt processing programs I0 and I1.

  Next, the sequence control operation will be described. When the execution of the sequence program is started in the program execution unit 4 in a state where the above presetting has been completed, the operation state monitoring unit 5 monitors the event to be monitored (periodic) stored in the monitoring event setting storage unit 3 Events, non-periodic events), and changes in the H / W operation state such as the operating frequency and drive voltage of the CPU, memory, and bus, and if these are detected, that fact (which event or H / W Information on whether or not the W operation state has been detected) and the detection time are notified to the event occurrence history storage unit 6 as a monitoring result. When the event occurrence history storage unit 6 receives a notification of the monitoring result from the operation state monitoring unit 5, if the notification content indicates the detection of the monitoring target event, the event occurrence history storage unit 6 activates the event name, the detection time and the state (the event is activated). If the H / W operation state change is detected, the H / W operation state and the detection time are stored as event history data together with the information notified so far. . The time information is obtained from, for example, an RTC or the like equipped in a sequencer or another device connected to the sequencer.

  FIG. 3 is a diagram illustrating an example of event history data stored in the event occurrence history storage unit 6. In addition, the line described as H / W in the event name column is the time and the operation state when the H / W operation state such as the operation frequency and drive voltage of the CPU, memory, and bus inside the sequencer changes, There are two operating states: a normal state (non-power saving state) and a power saving state. This example shows that the operation is performed in the normal state after the “H / W” event occurs. EventA, EventB, and EventC are in accordance with the monitoring event name of the monitoring target event setting information illustrated in FIG. The normal operating state of the monitoring symmetric event is indicated by “active” or “inactive”. Further, “occurrence and completion time” is the detection time described above.

  Next, an operation in the case of setting a section (power saving mode transition section) that shifts to a power saving state and operates by using event history data collected by executing the sequence control operation described above will be described.

  When an operation for starting the setting of the power saving mode transition section is performed by the operator, the operation state display unit 7 displays the event history data stored in the event occurrence history storage unit 6.

  When the operation state display unit 7 displays the event history data and the operator performs a setting operation of a section in which the power saving operation can be performed, the H / W operation state setting unit 8 acquires a setting result. At this time, the operator refers to the displayed event history data and sets the H / W operation state change start condition (condition for shifting to the power saving operation) and the H / W operation state as a section for performing the power saving operation. The duration after the change (the duration of the power saving operation) and the interruption cycle for changing the H / W operation state (the interruption cycle of the power saving operation) are input, and the H / W operation state setting unit 8 inputs these Each information is acquired and passed to the H / W setting storage unit 9 as the H / W operation state setting. The H / W setting storage unit 9 stores the received information (H / W operation state setting).

  Note that the interruption period of the H / W operation state change is not an indispensable setting, but is information set as necessary. For example, when the duration of the power saving operation state is long and occurrence of some non-periodic event that is not stored in the event history data is expected, it is set for the purpose of ensuring interrupt responsiveness. When this is set, the sequencer periodically changes the H / W operation state to the normal operation state (with a cycle according to the set interruption cycle).

  Here, when the event history data of FIG. 3 is stored in the event occurrence history storage unit 6, the active interval of the cyclic event of EventA and EnentB is the interval in which the H / W operation state can be changed (power saving mode An example of setting as a transition section) is shown.

  In the event history data illustrated in FIG. 3, an aperiodic event C (EventC) occurs during the active period of the periodic event A (EventA). Therefore, in the section (active section) in which the periodic event A is executed, from the section # 1 from the start (activation) of the periodic event A to the start of the non-periodic event C and the completion of the non-periodic event C (deactivation) Either one or both of the interval # 2 until the completion of the periodic event A can be set as the power saving operation interval, and the operator sets either or both of these intervals as the power saving operation interval. For example, when both the above-described sections # 1 and # 2 are set, the following settings are made.

Start condition for changing the H / W operation state (start condition for power saving operation)
(Section # 1) Event A is activated (Section # 2) Event A is active and aperiodic event C is changed from active to inactive Duration after H / W operation state change (continuation of power saving operation time)
(Section # 1) 1000.0ms
(Section # 2) 4900.0ms
H / W operation status change interruption cycle (power saving operation interruption cycle)
(Section # 1) No interruption (Section # 2) 500.0ms

  Further, in the event history data of FIG. 3 above, since the non-periodic event has not occurred in the active section of the periodic event B, all the active sections of the periodic event B are in the section where the periodic event B is executed (active section). Can be set as a power saving operation section. When this active section is set as a power saving operation section, it is set as follows.

H / W operation state change start condition Event B is activated Duration after H / W operation state change
8000.0ms
H / W operation status change interruption cycle
500.0ms

  Regarding the duration after the H / W operation state change, the setting of the scan time of the sequencer, the refresh method of the input / output device, the specifications of the production line including the configuration of each control target device, and the power saving effect (saving) Set after considering the transition to the power state and the recovery time.

  The H / W operation state setting unit 8 includes the above-described H / W operation state change start condition (power saving operation start condition), duration after the H / W operation state change (power saving operation duration), and H When each information of the interruption cycle of the / W operation state change (interruption cycle of the power saving operation) is acquired, the information is transferred to the H / W operation state setting storage unit 9 as the H / W operation state setting. The H / W operation state setting storage unit 9 stores the received information (H / W operation state setting).

  Next, an operation when the sequencer performs sequence control according to the H / W operation state setting stored in the H / W operation state setting storage unit 9 will be described.

  In a state where the H / W operation state setting storage unit 9 stores the H / W operation state setting, the H / W operation state control unit 10 notifies the occurrence of the monitoring target event (detection) from the operation state monitoring unit 5. When the notification is received, the operation mode setting of the power saving control target H / W is controlled based on the notification content and the H / W operation state setting stored in the H / W operation state setting storage unit 9. For example, the operation state of the power saving control target H / W is the normal operation state and the “H / W operation state change start condition (power saving operation start condition) stored in the H / W operation state setting storage unit 9 is used. ) ”Is satisfied, the power saving control target H / W is shifted to the power saving operation state. Thereafter, when the continuation time of the power saving operation state reaches the “continuation time after changing the H / W operation state” stored in the H / W operation state setting storage unit 9, the normal operation state is restored. In addition, when the H / W operation state change interruption cycle (power saving operation interruption cycle) is set, the return to the normal operation state and the transition to the power saving operation state are repeated for each interruption cycle. To control.

  As described above, the sequencer according to the present embodiment, when a specified periodic event and non-periodic event are activated or deactivated in a series of processes of the sequencer program, each event identification information (for example, event When the detection time (activation time or deactivation time of each event) is stored as an event occurrence history together with the name), the operator can set a section (power saving mode transition section) in which the power saving operation can be performed. The stored event occurrence history was displayed. As a result, the operator can refer to the occurrence history of the aperiodic event in the active section of the periodic event during the setting operation of the power saving mode transition section, and power saving of the sequencer (power saving operation setting) is possible. The amount of analysis work required to narrow down the section can be reduced.

Embodiment 2. FIG.
In the first embodiment, the sequencer that displays the event history data stored in the order in which the events to be monitored occurred has been described. Next, the stored event history data is edited and displayed to save the event history data. A sequencer that can further improve the efficiency of narrowing down candidates for sections in which the H / W operation state such as power operation can be changed will be described.

  FIG. 4 is a diagram illustrating a configuration example of the sequencer according to the second embodiment, which is realized by adding the event history data editing unit 11 to the sequencer according to the first embodiment (see FIG. 1). In the present embodiment, only parts different from the sequencer of the first embodiment will be described.

  The event history data editing unit 11 (corresponding to the editing means) of the sequencer shown in FIG. 4 edits the event history data stored in the event occurrence history storage unit 6 so that the subsequent narrowing work can be efficiently performed. To do. Specifically, data rearrangement using event names as a series and extraction of a data part where an aperiodic event has occurred in the active section of the periodic event are performed. The result obtained by executing the process by the event history data editing unit 11 is passed to the operation state display unit 7 as edited event history data, and the operation state display unit 7 displays the received history data.

  Here, details of processing executed by the event history data editing unit 11 will be described with reference to FIGS. 5 and 6.

  FIG. 5 is a diagram showing an operation example when the event history data editing unit 11 rearranges the event history data. FIG. 6 is a diagram illustrating how the event history data editing unit 11 selects desired data (periodic event) from the event history data. It is the figure which showed the operation example in the case of extracting the data part which a non-periodic event generate | occur | produced in the active area.

  When the event history data storage unit 6 stores the event history data shown in the upper part of FIG. 5, the event history data editing unit 11 sorts the data in ascending or descending order using the event name column as a key. Sort and edit, and output the edited data as shown in the bottom row.

  Further, as shown in FIG. 6, the event history data editing unit 11 searches the upper part of the event history data for the data part in which the aperiodic event was executed in the periodic event active section, as shown in the lower part. Output the edited data.

  Each data (data after rearrangement, extracted data) obtained by the event history data editing unit 11 executing each editing process is transferred to the operation state display unit 7 and displayed. The operator performs the H / W operation state setting described in the first embodiment with reference to the display contents by the operation state display unit 7.

  As described above, the sequencer according to the present embodiment sorts the collected event occurrence history into a series of event names so that the subsequent narrowing work can be efficiently performed, and aperiodic during the periodic event active section. The data part where the event processing occurs is extracted, and the obtained event occurrence history after editing is displayed. As a result, it is possible to easily detect an event having a long event active section that is a candidate for a change section of the H / W operation state. In addition, even in a periodic event with a long active period, it is possible to easily narrow down events to be excluded from the change period of the H / W operation state due to frequent non-periodic events.

Embodiment 3 FIG.
In the second embodiment, the sequencer that displays the event history data after editing the event history data has been described in order to improve the efficiency of narrowing down the H / W operation state change section candidates by the operator. It is possible to limit the extraction range of H / W operation state change section candidates by acquiring the / W operation state change condition and execute the editing operation according to the contents, thereby improving work efficiency. A simple sequencer will be described.

  FIG. 7 is a diagram illustrating a configuration example of the sequencer according to the third embodiment. The sequencer according to the first embodiment (see FIG. 1) includes an H / W operation state change condition setting unit 12 and an H / W operation state change condition storage. This is realized by adding a unit 13 and an operation state change candidate extraction unit 14. In the present embodiment, only parts different from the sequencer of the first embodiment will be described.

  The H / W operation state change condition setting unit 12 acquires the change condition of the H / W operation state via the input unit 1. The H / W operation state change condition storage unit 13 stores the change condition acquired by the H / W operation state change condition setting unit 12. The operation state change candidate extraction unit 14 uses the change condition (change of the H / W operation state) stored in the H / W operation state change condition storage unit 13 from the event history data stored in the event occurrence history storage unit 6. Event history data that matches (condition) is extracted.

  The operation of the sequencer of the present embodiment will be described in detail. The operator uses the input unit 1 as conditions for enabling the H / W operation state to be changed (hereinafter referred to as changeable conditions), the start / end conditions of the section that can be shifted to the power saving operation state, and the power saving The minimum duration of the operation state (the duration of the state in which the non-periodic event does not occur) is designated, and the H / W operation state change condition setting unit 12 acquires the changeable condition.

  Among the conditions included in the changeable condition, for example, activation / inactivation of the monitoring target event is set as the start / end condition of the section in which the transition to the power saving operation state is possible. In addition, a time during which the power saving effect is recognized is set as the minimum duration of the power saving operation state.

  When the changeable condition is acquired, the H / W operation state change condition setting unit 12 passes the changeable condition to the H / W operation state change condition storage unit 13. The H / W operation state change condition storage unit 13 stores the changeable condition received from the H / W operation state change condition setting unit 12. These processes are executed before starting the sequence control.

  The operation state change candidate extraction unit 14 corresponding to the extraction unit matches the changeable condition stored in the H / W operation state change condition storage unit 13 from the event history data stored in the event occurrence history storage unit 6. Extracted event history data.

  FIG. 8 is a diagram illustrating an example of an extraction operation performed by the operation state change candidate extraction unit 14. The upper display in FIG. 8 is an example of event history data stored in the event occurrence history storage unit 6. FIG. 8 also shows that event A activation / event B deactivation is specified as the start / end condition of the section that can be changed to the power saving operation state of the changeable condition, and 6000.00 ms is specified as the minimum duration. An example of the operation is shown. Specifically, the operation state change candidate extraction unit 14 first excludes the data before the activation of the event A and the data after the deactivation of the event B from the event history data stored in the event occurrence history storage unit 6. Next, from the event history data obtained by executing the exclusion process, a section (in this example, an inactive data portion from the activation of event B) that exceeds the minimum duration “6000.00 ms” of the power saving operation state is selected. Extract.

  The data extracted by the operation state change candidate extraction unit 14 is transferred to the operation state display unit 7 and displayed. The operator performs the H / W operation state setting described in the first embodiment with reference to the display contents by the operation state display unit 7. Since only the section that matches the changeable condition is extracted and displayed, the event history analysis load on the operator is greatly reduced.

  As described above, since the sequencer of the present embodiment extracts and displays the data satisfying the condition specified in advance by the operator from the event history data, it is compared with the first and second embodiments. Further, it is possible to further reduce the narrowing-down work in the H / W operation state change section (power saving mode transition section).

Embodiment 4 FIG.
In the first to third embodiments, the case where candidates that can change the H / W operation state are displayed and the operator sets the H / W operation state with reference to the candidates has been described. A sequencer that automatically sets the / W operation state will be described.

  FIG. 9 is a diagram illustrating a configuration example of the sequencer according to the fourth embodiment, which is realized by adding an operation state change interval correction unit 15 to the sequencer according to the third embodiment (see FIG. 7). In the present embodiment, only different parts from the sequencer of the third embodiment will be described.

  The operation state change interval correction unit 15 corresponding to the setting update means is stored in the H / W operation state change interval candidate extracted by the operation state change candidate extraction unit 14 and the H / W operation state setting storage unit 9. The H / W operation state setting is compared, and the H / W operation state setting is corrected according to the extraction result of the operation state change candidate extraction unit 14.

  The operation of the sequencer of the present embodiment will be described in detail. The operation state change section correction unit 15 includes the event names included in the change section candidates of the H / W operation state extracted by the operation state change candidate extraction unit 14 and the H / W operation in the H / W operation state setting storage unit 9. Check the event name of the event set in the condition change start condition.

  As a result of the above collation, when the event name included in the change section candidate matches the event name of the event set in the start condition, the operation state change section correction unit 15 extracts the event extracted by the operation state change candidate extraction unit 14 Based on the history data, an active section (power saving mode transition section) of a candidate event whose H / W operation state can be changed is calculated. Next, when there is a difference between the calculation result and the duration (the duration of the power saving operation) after the H / W operation state change stored in the H / W operation state setting storage unit 9, the operation state change interval correction is performed. The unit 15 updates the duration after the H / W operation state change stored in the H / W operation state setting storage unit 9 to the above calculation result. Note that the above calculation result may be always overwritten on the duration after the H / W operation state change without checking whether there is a difference.

  On the other hand, as a result of the above collation, when the event name included in the change section candidate does not match the event name of the event set in the start condition, the operation state change section correction unit 15 performs the operation state change candidate extraction unit 14. Is set in the H / W condition setting storage unit 9 as a section in which the H / W operation state can be changed. The setting contents at this time are the start condition for changing the H / W operation state, the duration after the change of the H / W operation state, and the interruption cycle of the H / W operation state change, as described in the first embodiment.

  The timing at which the operation state change section correction unit 15 executes the above processing is executed when the sequence control is ended, for example. Alternatively, it is executed when a predetermined operation is performed using the input unit 1.

  The H / W operation state is set by the operator referring to the operation state display unit 7 only at the time of initial setting (first time setting). Thereafter, the initial setting set by the operator is performed by the operation state change section correction unit 15. May be updated at a predetermined timing, or the initial setting is set (stored) in the H / W operation state setting storage unit 9, and the initial state is set by the operation state change section correction unit 15. It may be updated at a predetermined timing. Even when the initial setting is not performed, the H / W operation state is set / updated by the operation state change section correction unit 15 executing the above-described processing.

  As described above, the sequencer according to the present embodiment extracts data satisfying the conditions specified in advance by the operator from the event history data, and further uses the extracted data to generate an H / W condition setting storage unit. The H / W operation state setting set to 9 is updated. Thereby, the operator's work load concerning the change section setting work of the H / W operation state can be reduced.

Embodiment 5 FIG.
In the first to fourth embodiments, the sequencer that stores a pair of event name and detection time in the event history data when a monitored event occurs has been described. Next, by adopting a different storage method, A sequencer that reduces and stores event history data will be described.

  FIG. 10 is a diagram illustrating a configuration example of the sequencer according to the fifth embodiment, which is realized by adding the recording event data amount reducing unit 16 to the sequencer according to the first embodiment (see FIG. 1). In the present embodiment, only parts different from the sequencer of the first embodiment will be described.

  The recorded event data amount reduction unit 16 corresponding to the data amount reduction unit receives each detection result (event name, occurrence time and operation state, see FIG. 3 and others) output from the operation state monitoring unit 5, and aggregates them. As a result, the amount of information is reduced and a new detection result is generated. Specifically, when the recording event data amount reduction unit 16 receives the detection result information (event name, detection time, operation state) of the monitoring target event notified from the operation state monitoring unit 5, the recorded event data amount reduction unit 16 confirms the contents and confirms the same. When the activation and deactivation of the event is continuously reported, the difference between the occurrence times of the event is calculated, and the event name, the occurrence time (detection time) and the active interval time (corresponding to the calculated difference) As an event occurrence history (event occurrence history after aggregation), the event occurrence history is stored and stored in the event occurrence history storage unit 6.

  In addition, when a non-periodic event occurs in the periodic event active section, the recorded event data amount reducing unit 16 includes a section in addition to the event name, occurrence time, and active section time in the detection result of the periodic event. Include information (event name) of non-periodic events that occurred in

  FIG. 11 is a diagram illustrating an example of an aggregation result output from the recorded event data amount reduction unit 16. This aggregation result includes an event name, an occurrence time, an active interval time, and a content event for each event that has occurred, and the name of an aperiodic event that occurred during the periodic event active interval is set in the content event. 11 shows an aggregation result when the event data history reduction unit 16 aggregates the event occurrence history shown in FIG. 3 according to the above rule, and event C occurs in the active interval of the periodic event A. Therefore, the name of the event C is set in the included event of the event A.

  As described above, in the sequencer according to the present embodiment, the detection result information of the monitoring target event is collected and stored after reducing the data amount. As a result, the amount of memory can be reduced, and the cost can be reduced.

  In the present embodiment, as an example, an example in which the recording event data amount reducing unit 16 is added to the sequencer of the first embodiment has been described. However, in other embodiments 2 to 4, the recording event data amount is reduced. It is also possible to add a part 16.

Embodiment 6 FIG.
In this embodiment, a modified example of the sequencer shown in the fifth embodiment will be described. FIG. 12 is a diagram illustrating a configuration example of the sequencer according to the sixth embodiment. The sequencer according to the first embodiment (see FIG. 1) includes an H / W operation state change condition setting unit 12 and an H / W operation state change condition storage. This is realized by adding a section 13 and a recorded event data number reduction section 17. The H / W operation state change condition setting unit 12 and the H / W operation state change condition storage unit 13 are the same as the H / W operation state change condition setting unit 12 and the H / W operation included in the sequencer of the third embodiment. This is the same as the state change condition storage unit 13. For this reason, in this embodiment, the operation of the recording event data number reduction unit 17 will be mainly described.

  The recorded event data number reduction unit 17 corresponding to the extraction / aggregating unit includes a condition (H / W) stored in the H / W operation state change condition storage unit 13 among the detection results of the monitoring target event by the operation state monitoring unit 5. Extract those satisfying the condition that allows the operating state to be changed. Specifically, among the detection results of the monitoring target event notified from the operation state monitoring unit 5, the start of the transitionable section to the power saving operation state stored in the H / W operation state change condition storage unit 13 The detection result that satisfies the conditions of the / end condition and the minimum duration of the power saving operation state is extracted, and is passed to the event occurrence history storage unit 6 and stored as an event occurrence history (history information after reducing the number of data).

  As an example, the H / W operation state change condition storage unit 13 specifies activation of event A / deactivation of event B as the start / end conditions of a section that can transition to the power saving operation state, and the lowest power saving operation state The operation of the recorded event data number reduction unit 17 when 6000.00 ms is specified as the duration will be described.

  In this case, the recorded event history data number reduction unit 17 receives the event detection result notified from the operation state monitoring unit 5 before the activation of the event A and the event notified from the operation state monitoring unit 5 after the deactivation of the event B. Ignore (discard) detection results. Further, the event data number reduction unit 17 determines the difference between the notified occurrence times for the event detection result notified from the operation state monitoring unit 5 after the event A is activated until the event B is deactivated. Are sequentially calculated, and when the calculated difference exceeds the minimum duration (6000.00 ms here) of the power saving operation state stored in the H / W operation state change condition storage unit 13, the event name, detection time ( (Occurrence time) and active section time are passed to the event occurrence history storage unit 6 for storage. For example, when the operation state monitoring unit 5 detects events in the order as shown in FIG. 3, the recorded event data number reduction unit 17 extracts those that match the conditions from the detection result, and displays them in FIG. The extraction result of the indicated content is output to the event occurrence history storage unit 6. FIG. 13 is a diagram illustrating an example of an extraction result by the recorded event data number reduction unit 17.

  Similarly to the recorded event data amount reducing unit 16 of the fifth embodiment, the recorded event history data number reducing unit 17, when a non-periodic event occurs during the periodic event active section, In addition to the event name, event start time, and active interval time, information on the aperiodic event that occurred in the interval (event name) is included, and the event name, event start time, and active interval time of this aperiodic event are included. Information is also output (see FIG. 11).

  As described above, in the sequencer of the present embodiment, events satisfying the preset conditions are extracted from the detection result information of the monitoring target event, and further aggregated by the same method as the sequencer of the fifth embodiment. And remembered it. Thereby, the amount of memory can be further reduced, and further cost reduction can be realized. In addition, since the recording start and end periods of the detected monitoring target event (detection result) are specified, the number of history storage processes can be reduced, and transactions to storage devices such as memory can be reduced.

  As described above, the sequencer device according to the present invention is useful when performing sequence control on a device to be controlled in a factory production line or the like, and is particularly suitable for the situation of periodic events and aperiodic events that occur during execution of sequence control. Accordingly, it is suitable for a sequencer device having a function of shifting to a power saving mode and suppressing power consumption.

It is a figure which shows the structural example of Embodiment 1 of the sequencer concerning this invention. It is a figure which shows the example of a setting of a sequence program and a monitoring object event. It is a figure which shows an example of event history data. 6 is a diagram illustrating a configuration example of a sequencer according to a second embodiment. FIG. It is the figure which showed the operation example in case an event history data edit part rearranges event history data. It is the figure which showed the operation example in case an event history data edit part extracts desired data from event history data. FIG. 10 is a diagram illustrating a configuration example of a sequencer according to a third embodiment. It is the figure which showed an example of extraction operation | movement by the operation state change candidate extraction part. FIG. 10 is a diagram illustrating a configuration example of a sequencer according to a fourth embodiment. FIG. 10 is a diagram illustrating a configuration example of a sequencer according to a fifth embodiment. It is a figure which shows an example of the aggregation result which a recording event data amount reduction part outputs. FIG. 20 is a diagram illustrating a configuration example of a sequencer according to a sixth embodiment. It is a figure which shows an example of the extraction result by the recording event data number reduction part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Input part 2 Monitoring event setting part 3 Monitoring event setting storage part 4 Program execution part 5 Operation state monitoring part 6 Event generation history storage part 7 Operation state display part 8 H / W operation state setting part 9 H / W operation state setting storage Unit 10 H / W operation state control unit 11 Event history data editing unit 12 H / W operation state change condition setting unit 13 H / W operation state change condition storage unit 14 Operation state change candidate extraction unit 15 Operation state change section correction unit 16 Recorded event data amount reducing unit 17 Recorded event data number reducing unit

Claims (7)

A sequencer device that operates in a power saving mode in which the power consumption is reduced than usual when the conditions set by the user are satisfied,
An operation state monitoring means for detecting the start and end of a specific event among events that occur periodically during operation of the sequence program (periodic events) and events that occur aperiodically (non-periodic events);
When the user of the start and end condition of the power saving mode tries to set, and the operation state display means for displaying the detection results by said operating condition monitoring means as the event occurrence history,
A sequencer device comprising: The sequencer apparatus according to claim 1, wherein the detection result is information including identification information of a detected specific event, detection time, and information indicating whether the start or end of the event is detected. The detection result is received from the operation state monitoring unit, and among the received detection results, the start detection result and the end detection result of the same event are aggregated, and the event identification information, the start detection time, and the time from the start to the end Data volume reduction means to generate monitoring results including
Further comprising
The sequencer apparatus according to claim 2, wherein the operation state display unit displays the monitoring result as an event occurrence history instead of each detection result by the operation state monitoring unit. The detection result is received from the operation state monitoring unit, and the detection result that satisfies the condition acquired in advance from the user is extracted from the received detection results, and the same event is extracted from the extracted detection results. Data extraction reduction means for aggregating start detection results and end detection results of the above, and generating monitoring results including event identification information, start detection time, and time information from start to end,
Further comprising
The sequencer apparatus according to claim 2, wherein the operation state display unit displays the monitoring result as an event occurrence history instead of each detection result by the operation state monitoring unit. The detection results are received from the operation state monitoring unit, and the received detection results are rearranged based on the identification information of the events included in the detection results to generate a first editing result. An editing means for extracting a monitoring result relating to a portion in which an aperiodic event is executed during the event active section and generating a second editing result;
Further comprising
The operation state display means displays the first editing result and the second editing result as an event occurrence history instead of each detection result by the operation state monitoring means. The sequencer device described. Extraction means for receiving detection results from the operating state monitoring means, and extracting detection results that satisfy the conditions acquired in advance from the user from among the received detection results;
Further comprising
The said operation state display means displays each detection result extracted by the said extraction means as an event generation | occurrence | production log | history instead of each detection result by the said operation state monitoring means. Sequencer device. Setting update means for updating the set “power saving mode start and end conditions” based on the detection result extracted by the extraction means;
The sequencer device according to claim 6, further comprising:

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