JP5459130B2 - Indicator - Google Patents

Description

  The present invention relates to an indicator that is connected to a field device via a field bus and displays the identification information of the field device existing on the same segment as the own device and data received from the field device on a display unit formed integrally. This makes it easy to view and search information on multiple field devices, which was difficult with a text-based display format.

FIG. 4 is a functional explanatory diagram showing an example of a conventional indicator.
A field indicator (hereinafter referred to as an indicator) 1 is connected to a plurality of field devices 21 to 24 via a field bus 100.

  The fieldbus 30 is, for example, a digital transmission line such as Foundation Fieldbus (registered trademark) or PROFIBUS (registered trademark), a 4-20 mA analog transmission line with redundant digital signals, such as BRAIN / HART communication, or an industrial wireless transmission. Consists of the path of the road.

  When the Foundation Fieldbus communication format is used, the fieldbus 30 can bidirectionally communicate with up to 32 field devices (including indicators) in the same segment (according to the Foundation Fieldbus specification).

  The field devices 21 to 23 are attached to piping through which a process fluid flows. The field devices 21 to 23 have a digital communication function and communicate with the indicator 1 and the host device 40 via the field bus 30 or a gateway (not shown), and process measurement data and alarms generated in the process Send information.

Here, the field devices 21 to 23 are various field devices such as a differential pressure gauge, a flow meter, a thermometer, a monitoring camera, and an actuator.
For example, the field device 21 is a differential pressure transmitter, and the field device 22 is a pressure transmitter, and measures a differential pressure generated in an orifice plate attached to a pipe. The field device 23 is a thermometer and measures the temperature of the process fluid using a thermocouple.
These field devices 21 to 23 transmit measurement data and alarm information to the host device via the field bus 30.

  The field device (not shown) is, for example, a battery-driven differential pressure transmitter such as a wireless device, and transmits measurement data and alarm information to a host device via a gateway (not shown). But you can.

  The host 40 is a host control device such as a distributed control system or a PLC, and receives process values from the field devices 21, 22, 23, etc. via the field bus 30, and sends them to a control device (not shown) such as a valve. Process amount is transmitted by operating amount.

  The host 40 has a function of monitoring and recording field device failure information from the field devices 21 to 23 and the abnormal state of the process via the field bus 30. The host 40 may be capable of monitoring a failure state of a wireless field device sent via a wireless gateway.

  Here, in a plurality of field devices, the measurement value and the like are displayed on a display unit integrally formed. However, when the field device is installed in a place where it is difficult for the worker to access (for example, in a high place or in a dangerous atmosphere), it is difficult for the worker to confirm the display.

Conventionally, this problem has been dealt with by installing the indicator 1 for displaying various parameters of the field devices 21 to 23 in a place where workers can easily access.
For this reason, if the worker confirms the display on the indicator 1, the display means is formed in a plurality of field devices in one place at a relatively safe place and without going around the plurality of places. The displayed measurement values can be read.

  The indicator 1 is a field-type indicator, and although not particularly shown, the communication means for performing data communication with each field device 21 to 23 through the field bus 30, the display means integrally formed in the main body, and the display means An arithmetic control unit that displays various parameters of the field device is provided.

In the indicator 1, the communication means receives a digital signal on the field bus 30, and acquires various parameters (differential pressure, flow rate, temperature, etc.) of the field devices 21 to 23.
In the indicator 1, the calculation control unit displays the measurement values and alarm information of any one or more of the field devices 21 to 23 on the display unit based on the acquired various parameters.

  Specifically, when the fieldbus 30 is, for example, Foundation Fieldbus, the indicator 1 reads information distributed to the fieldbus 30 from the field devices 21 to 23 periodically by publisher / subscriber type synchronous communication. The indicator 1 displays measurement data and alarm information of each field device based on the read information.

  Further, when the field bus 100 is, for example, PROFIBUS, the indicator 1 reads information distributed to the field bus 30 from the field devices 21 to 23 periodically by a method such as Data Exchange. The indicator 1 displays measurement data and alarm information of each field device based on the read information.

The display means of the indicator 1 displays the acquired information on the other field devices as “alphanumeric characters”, “simple graphs”, and the like.
The indicator 1 displays a character-based display screen based on an instruction from a worker (user) input via an input device (not shown) such as a button or a jog dial when browsing the acquired information. Switch and search for desired information.

FIG. 4B shows a display example when the indicator 1 displays the measurement data and process state of the field devices 21 to 23.
In the display example of FIG. 4 (B), the TAG number 4567889012 of the field device 21, the measured value −9865.4 mmH 2 O, the process state AI123. It is represented by a symbol consisting of a character and a numerical value such as OUT-GOOD.

  For example, Patent Document 1 listed below is a prior art document related to a conventional indicator that displays the state of a field device or an alarm that has occurred.

JP-A-5-174274

However, the conventional indicator has a text-based display format, so it has poor visibility and operability. In order to quickly access information required by workers (users) from a lot of information obtained from field devices. Is an inefficient interface and has the following problems.
(B) Since it is a text-based display, there is a problem that it is difficult to instantaneously grasp information such as the total number of connected field devices and the model.
(B) Since it is a text-based display, there is a problem that it is difficult to simultaneously recognize the states (setting information, alarm information, etc.) of a plurality of connected field devices.
(C) Since it is a text-based display, it is difficult to determine which of the connected field devices is being monitored.
(D) Since it is a text-based display, there is a problem that it is difficult to quickly search for information to be browsed.
(E) Since it is a text-based display, there is a problem that it is impossible to recognize the instrumentation state (positional relationship and connection state) of field devices on the display site.

  The present invention solves such problems, and an object thereof is to realize an indicator that makes it easy to view and search information of a plurality of field devices, which has been difficult in a text-based display format. There is to do.

In order to achieve the above object, the invention described in claim 1 of the present invention is:
In an indicator that is connected to a field device via a field bus and displays the identification information of the field device existing on the same segment as the own device and the data received from the field device on a display unit integrally formed,
Storage means for storing an icon corresponding to the type of the field device;
An indicator comprising: a graphical display unit that displays the field device by the icon, generates a graphical display screen that graphically represents an arrangement of the field device in the field bus, and displays the graphical display screen on the display unit.

The invention described in claim 2 is the indicator according to claim 1,
The graphical display means displays an icon selection key part for selecting and specifying the icon on the graphical display screen,
When the icon is selected and determined through the icon selection key unit, the identification information of the field device corresponding to the icon and the text display screen that displays the data received from the field device in characters are generated, A text display means for displaying on the display means is provided.

The invention described in claim 3 is the indicator according to claim 1,
The display means is integrally formed with an input means for selecting and instructing the icon displayed on the graphical display screen,
When the icon is selected and determined via the input unit, the display unit generates a text display screen that displays the identification information of the field device corresponding to the icon and the data received from the field device in characters, and the display unit It is characterized by comprising text display means for displaying on the screen.

Invention of Claim 4 is the indicator in any one of Claims 1-3,
Detailed information acquisition means for acquiring the positional relationship information on the instrumentation of the field device from an upper control device,
The graphical display means includes
Based on the positional relationship information acquired by the detailed information acquisition means, the positional relationship on the instrumentation of the field device is graphically represented by the icon on the graphical display screen.

Invention of Claim 5 is an indicator in any one of Claims 1-4,
A connection state information collecting means for acquiring information indicating a connection state of the field device to the field bus via the field bus;
The graphical display means, based on the information acquired by the connection state information collection means, displays the field device that has been connected to the fieldbus in the past but is not currently connected on the graphical display screen. When connected, the icon is displayed at a position on the field bus displayed on the screen by an icon having a different form from the icon representing the field device currently connected.

Invention of Claim 6 is the indicator in any one of Claims 1-5,
Alarm information collecting means for acquiring an alarm output from the field device via a field bus;
The storage means stores an alarm icon corresponding to the type of alarm output by the field device,
The graphical display means is based on the alarm acquired by the alarm information collecting means and is adjacent to an icon representing the field device that has output the alarm on the graphical display screen with the alarm icon. It is characterized by being displayed.

According to the present invention, the storage means for storing the icon corresponding to the type of the field device, the field device is represented by the icon, and the graphical display screen that graphically represents the arrangement of the field device on the field bus is generated and displayed on the display means. By providing the graphical display means, it is possible to grasp the arrangement relationship and connection relationship of a plurality of field devices, which is difficult in the text-based display format.
In other words, according to the indicator of the present invention, the above-described configuration allows the user to perform a display method with high visibility by using an icon so that the user can select a field on the same segment as the fieldbus type field indicator. The number of devices, model, and position on the instrument can be grasped instantaneously just by looking at the screen.

  Further, with the above-described configuration, by associating with the installation position of the field device at the site, it is possible to quickly know where the device is installed in the facility when a device failure occurs.

  According to claims 2 and 3, the graphical display means displays an icon selection key part for selecting and specifying an icon on the graphical display screen (or for selecting and instructing an icon displayed on the graphical display screen. When the icon is selected and determined via the icon selection key part (or input means), the field device identification information corresponding to the icon and the data received from the field device are written in characters. By providing a text display control means for generating a text display screen to be displayed and displaying it on the display means, it is possible to easily view and search information on a plurality of field devices, which is difficult with a text-based display format. be able to.

  According to the fourth aspect of the present invention, the information processing device includes detailed information acquisition means for acquiring the positional relationship information on the instrumentation of the field device from the upper control device, and the graphical display means includes the positional relationship acquired by the detailed information acquisition device. Based on the information, the positional relationship in the instrumentation of the field device is graphically represented on the graphical display screen by icons so that the connection can be confirmed on the screen, so that the confirmation and maintenance of the wiring can be simplified. That is, it is useful for the field monitoring of the field device by an operator.

According to the fifth aspect, the connection state information collecting unit acquires information indicating the connection state of the field device to the field bus via the field bus, and the graphical display unit is based on the information acquired by the connection state information collecting unit. By displaying field devices that were previously connected to the fieldbus but not currently connected to the graphical display screen at the positions on the fieldbus that were displayed on the screen if they were connected in the past, This is effective in that it is useful for early detection of equipment failure based on equipment disconnection information.
That is, the indicator according to the present invention is effective in that when a device failure or the like occurs, it is possible to quickly know where the device is installed in the facility simply by looking at the screen.

According to the sixth aspect of the present invention, in the indicator according to the present invention, the alarm information collecting means acquires the alarm output from the field device via the field bus, and the graphical display means is based on the alarm acquired by the alarm information collecting means. It is effective in that the alarm is displayed on the graphical display screen adjacent to the icon representing the field device that has output the alarm by an alarm icon, which is useful for early detection of device abnormality.
That is, the indicator according to the present invention is effective in that when a device failure or the like occurs, it is possible to quickly know where the device is installed in the facility simply by looking at the screen.

It is a structure explanatory drawing which shows one Example of the indicator of this invention. It is explanatory drawing of an example of the graphical display screen which an indicator displays. It is structure explanatory drawing which shows the other Example of the indicator which concerns on this invention. It is function explanatory drawing which shows an example of the conventional indicator.

<First embodiment>
Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the indicator of the present invention. The parts common to those in FIG. FIG. 1A is an explanatory diagram of the entire indicator, and FIG. 1B is a block diagram of the configuration.

  The main difference between FIG. 1 and FIG. 4 is that the storage means stores icons corresponding to the types of field devices, the graphical display means represents field devices by icons, and the arrangement of field devices on the field bus is represented graphically. A graphical display screen is generated and displayed on the display means.

(Configuration overview)
In FIG. 1, a field indicator 60 (hereinafter referred to as an indicator) is connected to a plurality of field devices 21 to 24 via a field bus 100. The indicator 60 is also connected to the host 40.

  The fieldbus 100 is a digital transmission path such as Foundation Fieldbus (registered trademark) or PROFIBUS (registered trademark), a 4-20 mA analog transmission path with redundant digital signals, such as BRAIN / HART communication, or an industrial wireless transmission. Consists of the path of the road.

  The field devices 21 to 23 are attached to piping through which a process fluid flows. The field devices 21 to 23 have a digital communication function, communicate with the indicator 60 and the host device 40 via the field bus 100 or a gateway (not shown), and process measurement data and alarms generated in the process Send information.

The host 40 is a host control device such as a distributed control system or a PLC, receives process values from the field devices 21, 22, 23, etc. via the field bus 100, and sends them to a control device (not shown) such as a valve. Process amount is transmitted by operating amount.
The host 40 stores data such as the positional relationship on the instrumentation and connection of the field devices 21 to 23 in advance.

(Specific explanation of the structure of the indicator)
The indicator 60 mainly includes a communication means 61 for performing data communication with the field devices 21 to 23 through the field bus 100, a display means 62 such as a display integrally formed in the main body, and an indicator for controlling each means. The control means 63 operated as 60, the storage means 64 for storing icons corresponding to the types of the field devices 21 to 23, the field devices 21 to 23 existing on the same segment as the own device are represented by icons, and the field in the field bus 100 And a graphical display unit 65 that generates a graphical display screen that graphically represents the arrangement of the devices 21 to 23 and displays the graphical display screen on the display unit 62.

  The indicator 60 includes an input unit 66 that receives various operations such as an instruction for selecting an icon displayed on the graphical display screen. The input unit 66 is formed integrally with the display unit 62 as a touch panel.

  When the graphical display means 65 is touched on the graphical display screen via the input means 66, the icon is selected, and the icon selection key portions 65a and 65b that change the selection target according to the number of touches are selected. A determination key part 65c for determining the selected icon is displayed.

  The icon selection key portions 65a and 65b and the determination key portion 65c are displayed for selecting and determining an icon for displaying detailed information representing the state of the field device and the like on a text base (character).

  When the icon is selected via the icon selection key portions 65a and 65b and the determination key portion 65c, the indicator 60 displays the identification information of the field device corresponding to the icon and the data received from the field device in characters. Text display means 67 is provided for generating a “text display screen” and displaying it on the display means 62.

Moreover, the indicator 60 of the present invention may include detailed information acquisition means 68 for acquiring the positional relationship information on the instrumentation of the field device from the higher-level control device.
In this case, the graphical display means 65 graphically displays the positional relation on the instrumentation of the field devices 21 to 23 on the graphical display screen based on the positional relation information acquired by the detailed information acquisition means 68 using icons.

  In the indicator 60, each means is housed in a case, and a display means 62 is installed on the front surface of the case.

  Further, it is desirable that the icons stored in the storage means 62 have shapes such as the icons ic100 and ic200 in FIG. 1, and the type of field device can be easily understood at a glance.

  The input unit 66 may accept various operations such as directly touching an icon and instructing selection without touching the icon selection key parts 65a and 65b and the determination key part 65c. In this case, the text display means 67 may generate a text display screen and display it on the display means when an icon is selected by the operator via the input means 66 (the icon is directly touched).

  In the indicator 60 of the present invention, the display means 62 may display a graphical display screen and a text display screen at the same time.

  The indicator 60 of the present invention switches the display screen of the display means 62 to either the graphical display screen or the text display screen, or to display the graphical display screen and the text display screen at the same time. A switch means 69 may be provided.

The indicator 60 of the present invention may be displayed only when the display means 62 instructs the icon selection key portions 65a and 65b and the selection determination key portion 65c to select an icon and display the text.
In this case, when the operator touches any area of the display screen, the graphical display means 65 determines that there is an instruction for text display, and the display means 62 displays the icon selection key portions 65a and 65b. The selection determination key unit 65c may be displayed.

  In the indicator 60 of the present invention, the input means does not have to be formed integrally with the display means. In addition to the touch panel, all devices that can be input by the user, such as keys and dials. Including.

  The indicator 60 includes an arithmetic control unit that controls functions of the indicator 60 such as a CPU (Central Processing Unit), and mainly includes a control unit 63, a graphical display unit 65, a text display unit 67, and a detailed information acquisition unit 68. The function block of the switching means 69 is included. Each of these means may be composed of independent devices connected to each other by a bus.

Here, the arithmetic control unit activates the OS or the like stored in the storage unit 64, reads out and executes the program stored on the OS, and controls each unit or the entire indicator 60, thereby indicating the indicator meter. 60 operations are performed.
At this time, the storage unit 64 expands the program or application executed by the arithmetic control unit in the program storage area, and temporarily stores the input data or data such as processing results generated when the program or application is executed in the work area. It may be memorized.

(Description of operation)
With the configuration as described above, the indicator 60 performs the following operations (1) to (5).
(1) In the indicator 60, the communication unit 61 collects information from the field devices 21 to 23 through, for example, Foundation Fieldbus communication via the fieldbus 100 and stores the information in the storage unit 64.
The data generated from the field devices 21 to 23 may not be received directly from the field device, but may be received from an external recording device (including other field devices) connected to the field bus 100. .
(2) The detailed information acquisition unit 68 acquires the positional relationship information on the instrumentation of the field device from the host control device such as the host 40 via the field bus 100.

(3) Based on the information collected by the communication means 61, the graphical display means 65 generates a graphical display screen showing the arrangement of each device in the fieldbus 100 for the field devices 21 to 23 existing on the same segment as the own device. And displayed on the display means 62.

Specifically, the graphical display unit 65 selects an icon corresponding to the type of each field device based on, for example, the TAG numbers of the field devices 21 to 23 from the information collected by the communication unit 61 and displays it on the graphical display screen. indicate.
The graphical display means 65 graphically displays the positional relationship on the instrumentation of the field devices 21 to 23 on the graphical display screen based on the information collected by the detailed information acquisition means 68 using icons.

  The positional relationship data and wiring data of the field devices 21 to 23 stored in the storage unit 61 are automatically transmitted from the field device and updated, or updated by arbitrary access by the user, and displayed graphically. It is reflected in.

(4) On the graphical display screen, the icon of the field device for which detailed information is to be displayed is touch input to the input means 66 from the operator (user) (to the icon selection key portions 65a and 65b and the decision key portion 65c). Input).

(5) When the icon is selected and determined, the text display means 67 provides detailed information (for example, identification information and data received from the field equipment) of the field device corresponding to the selected icon stored in the storage means 64. A text display screen to be displayed with characters is generated and displayed on the display means 62.

  It should be noted that the detailed information of the field device stored in the storage means 61 of the indicator 60 is automatically transmitted from the field device and updated, or updated by arbitrary access by the user and reflected in the text display. The

(Description of display screen 1)
FIG. 2 is an explanatory diagram of an example of a graphical display screen displayed by the indicator.
In FIG. 2, the graphical display means 65 represents field devices 21, 22, and 23 by icons ic100, ic200, and ic300 on the display means 62, and the field bus 100 (wiring that connects the field devices and a communication signal transmission path). It is represented by a line shape, and the arrangement of the field devices 21 to 23 in the field bus 100 is displayed by icons (graphical display screen).

  Based on the positional relationship information acquired by the detailed information acquisition unit 68, the graphical display unit 65 graphically displays the positional relationship on the instrumentation of the field devices 22 and 23 with icons ic200 and ic300 on the graphical display screen.

  Although not particularly shown, the display means 62 displays not only the arrangement state of the field devices 21 to 23 on the field bus but also menu items, command items, operation keys, and the like according to the situation. Various operations are possible.

For example, in the example of FIG. 2, the icon selection key portions 65a and 65b and the determination key portion 65c for determining the selected icon are displayed in a horizontal row in the lower part of the display screen.
Note that the icon selection key unit 65a functions as an icon selection button, and selects an object (icon) by scanning left or right, upward or downward, or the like. The icon selection key unit 65b functions as an icon selection button, and selects a target (icon) by scanning in the right or left, down or upward direction (opposite to the scanning direction of the icon selection key unit 65a).

Further, the graphical display means 65 displays a pointer indicating the selected icon on the display means 62.
For example, in FIG. 2, when the icon ic100 representing the field device 21 is selected by touching the icon selection key unit 65a by the operator, the graphical display means 65 has an arrow shape below (or in the vicinity of) the icon ic100. A pointer pt100 is displayed.

The arrow-shaped pointer is not limited to the arrow shape as long as it can indicate that the icon corresponding to the field device is selected.
The method for indicating that the field device is selected may be any display method other than the pointer as long as the display device can visually recognize a difference from another icon on the screen, such as blinking of an icon.

  For this reason, it can be visually recognized that the selected icon is selected by the display of the pointer.

(Description of display screen 2)
On the other hand, the text display means 66 receives the identification information of the field device corresponding to the selected icon and the data received from the field device when a touch input by the operator is made to the determination key portion 65c on the graphical display screen. Displays a text display screen that displays characters.
The text display means 66 displays, for example, a device failure state or a process abnormality state diagnosed by the self-diagnosis function of the field devices 21 to 23 in a text format.

For example, when the icon ic100 of the field device 21 is selected and determined, the text display means 66 displays the TAG number 456789012, the measured value −9865.4 mmH 2 O of the field device 21, the process state AI123. Characters and numerical values such as OUT-GOOD are displayed on the display means 62 in a text format.
If an alarm outside the measurement range of the pressure value is generated, the text display means 66 gives an ERR. Alarm for a failure of the sensor part of the field device 21 and an alarm outside the measurement range of the pressure value in the pipe. 01, WRN. Characters and numerical values such as 30 are represented by the display means 62 in a text format.

  For this reason, the user can confirm the state of the field device in the text format displayed on the display means 62 in detail, and therefore, based on the instruction manual of the field device, the content of the failure or alarm indicated by the text display and the countermeasures Can know.

  As a result, the indicator according to the present invention generates storage means for storing icons corresponding to the types of field devices, a graphical display screen that represents field devices by icons, and graphically represents the arrangement of field devices on the field bus. By providing the graphical display means for displaying on the display means, it is possible to grasp the arrangement relation and connection relation of a plurality of field devices, which was difficult in the text-based display format.

  In addition, the indicator of the present invention has the above-described configuration, so that the user can perform a highly visible display method so that the number of field devices on the same segment as the fieldbus type field indicator, The model, position on the instrument, etc. can be grasped instantaneously just by looking at the screen.

  In other words, the indicator of the present invention uses an icon-based GUI and incorporates information on the screen so that the user can know the number of connected field devices and the status of multiple devices at the same time. The number, model, and position of instrumentation on the same segment as the indicator can be grasped instantaneously by simply looking at the screen.

  In addition, the indicator of the present invention has the above-described configuration, and by associating with the installation position of the field device in the field, when an equipment failure occurs, it can quickly know where the equipment is installed in the facility. be able to.

  Moreover, since the indicator of this invention can be confirmed on a screen by setting it as the above-mentioned structure, wiring confirmation and a maintenance become easy. That is, it is useful for the field monitoring of the field device by an operator.

  Further, the indicator of the present invention displays an icon selection key portion for selecting and specifying an icon on the graphical display screen by the graphical display means (or an input means for selecting and indicating the icon displayed on the graphical display screen. When the icon is selected and determined through the icon selection key part (or input means), the field device identification information corresponding to the icon and the data received from the field device are displayed in characters. By providing a text display control means for generating a text display screen and displaying it on the display means, it is possible to easily view and search information of a plurality of field devices, which is difficult in a text-based display format. it can.

  Moreover, the indicator of this invention can search the information of the target field apparatus quickly by setting it as the above-mentioned structure.

<Second embodiment>
In addition to the configuration of the first embodiment, the indicator of the present invention has some specific information (connection / disconnection status information, alarm information, etc.) that the connected field device should inform the user. The graphical display means may display the information graphically and convey it visually.

FIG. 3 is an explanatory diagram showing the construction of another embodiment of the indicator according to the present invention. The parts common to those in FIG. (A) is a configuration block diagram, and (B) is an example of a graphical display screen.
For example, the indicator 60 includes at least one of a connection state information collecting unit 70 that collects a connection state to the fieldbus 100 and an alarm information collecting unit 71 that collects alarm information of field devices as shown in FIG. Good.

The connection state information collecting unit 70 collects connection states from the field devices 21 to 23 to the field bus 100 via the communication unit 61.
The connection state information collecting unit 70 stores the collection result (information such as a connected state and a disconnected state) in the storage unit 64.

The alarm information collecting unit 71 collects alarm information from the field devices 21 to 23 via the communication unit 61.
The alarm information collection unit 71 stores the collection result (alarm information) in the storage unit 64.

The graphical display means 65 generates a graphical display screen and displays it on the display means 62 for the field devices 21 to 23 existing on the same segment as the own device.
At this time, the graphical display unit displays the connection state or the alarm state on the graphical display screen based on the information collected by at least one of the connection state information collection unit 70 and the alarm information collection unit 71.
Hereinafter, in particular, “connection state display” and “alarm information display” will be specifically described.

(About connection status display)
Based on the information collected by the connection state information collecting unit 70, the graphical display unit 65 displays on the graphical display screen the past connected field devices that have been connected to the fieldbus 100 but are not currently connected. If it is time, it is displayed at the position on the fieldbus 100 shown on the screen.

The graphical display means 65 displays field devices that have been connected in the “past” but are not currently connected, using icons that are different from the icons that represent currently connected field devices.
For example, as shown in FIG. 3B, the graphical display means 65 displays an icon representing the currently connected field device as a “solid line” (ic300), and has been connected in the past but is not currently connected. An icon representing “” is displayed with a “broken line” (ic101).
The storage unit 64 stores icons corresponding to the connection states of the field devices 21 to 23 in advance.

As a result, in the indicator according to the present invention, the connection state information collecting unit acquires information indicating the connection state of the field device to the field bus via the field bus, and the graphical display unit is acquired by the connection state information collecting unit. On the graphical display screen, field devices that were previously connected to the fieldbus but not currently connected are displayed on the graphical display screen at the position on the fieldbus that was displayed on the screen if it was a past connection. By doing so, it is effective in that it is useful for early detection of equipment failure or the like based on equipment disconnection information.
In other words, the indicator according to the present invention has a device failure when a device failure occurs (for example, a failure case that is physically connected to the fieldbus but cannot communicate due to the failure). It is effective in that you can quickly find out where the equipment is installed just by looking at the screen.

(About alarm information display)
Based on the information (alarm) collected (acquired) by the alarm information collecting means 71, the graphical display means 65 displays the alarm on the graphical display screen by using an alarm icon (stored in the storage means 64). It is displayed adjacent to the icon representing the field device that output the alarm.
The storage unit 64 stores alarm icons corresponding to the types of alarms output from the field devices 21 and 2 in advance.

  For example, as shown in FIG. 3B, the graphical display means 65 displays an alarm icon ic301 adjacent to the icon ic300 indicating the field device 23 based on the alarm from the field device 23.

As a result, in the indicator according to the present invention, the alarm information collecting means acquires the alarm output from the field device via the field bus, and the graphical display means is based on the alarm acquired by the alarm information collecting means. Furthermore, displaying the alarm adjacent to the icon representing the field device that output the alarm with an alarm icon is effective in that it is useful for early detection of device abnormality.
That is, the indicator according to the present invention is effective in that when a device failure or the like occurs, it is possible to quickly know where the device is installed in the facility simply by looking at the screen.

Note that the indicator according to the present invention may include information collection means 72 that sets information that the user wants to obtain in advance and collects information from the field devices 21 to 23 via the fieldbus 100 based on the setting. . In this case, the control unit 63 may analyze and determine the parameters of the field devices 21 to 23 based on the information acquired by the information collecting unit 72, and the graphical display unit 65 may reflect the result on the display.
Further, the indicator according to the present invention may be one that can customize the icon type (change in shape and color) and the display position to the user's desired icon and display position by inputting an instruction via the input means 66. .

  The indicator according to the present invention has, for example, Foundation Fieldbus Client-Server function, PROFIBUS MS2 communication function, HART command response type communication function, and DD (Device Description) is installed in the indicator 60. If it is, the one-to-one communication with the field devices 21 to 23 is performed based on the DD information, the parameter indicating the self-diagnosis information of each field device is accessed, and the acquired information and the DD are described. The character string described in DD may be displayed as the self-diagnosis result of each field device by collating information.

(Appendix 7)
The display means includes
The measurement apparatus according to claim 1, wherein the graphical display screen and the text display screen are displayed simultaneously.
(Appendix 8)
The measuring apparatus according to claim 1, wherein the display unit is configured by a touch panel.
(Appendix 9)
The measuring apparatus according to claim 1, wherein the display unit displays the icon selection key unit only when the icon is selected and instructed.

21-23 Field device 40 Host 60 (site) indicator 61 Communication means 62 Display means 63 Control means 64 Storage means 65 Graphical display means 66 Input means 67 Text display means 68 Detailed information acquisition means 69 Switching means 70 Connection state information collection means 71 Alarm information collecting means

Claims (6)

In an indicator that is connected to a field device via a field bus and displays the identification information of the field device existing on the same segment as the own device and the data received from the field device on a display unit integrally formed,
Storage means for storing an icon corresponding to the type of the field device;
An indicator comprising: a graphical display unit that displays the field device by the icon, generates a graphical display screen that graphically represents an arrangement of the field device in the field bus, and displays the graphical display screen on the display unit. The graphical display means displays an icon selection key part for selecting and specifying the icon on the graphical display screen,
When the icon is selected and determined through the icon selection key unit, the identification information of the field device corresponding to the icon and the text display screen that displays the data received from the field device in characters are generated, The indicator according to claim 1, further comprising a text display means for displaying on the display means. The display means is integrally formed with an input means for selecting and instructing the icon displayed on the graphical display screen,
When the icon is selected and determined via the input unit, the display unit generates a text display screen that displays the identification information of the field device corresponding to the icon and the data received from the field device in characters, and the display unit 2. The indicator according to claim 1, further comprising a text display means for displaying on the screen. Detailed information acquisition means for acquiring the positional relationship information on the instrumentation of the field device from an upper control device,
The graphical display means includes
The positional relationship on the instrumentation of the field device is graphically represented by the icon on the graphical display screen based on the positional relationship information acquired by the detailed information acquisition means. The indicator according to any one. A connection state information collecting means for acquiring information indicating a connection state of the field device to the field bus via the field bus;
The graphical display means, based on the information acquired by the connection state information collection means, displays the field device that has been connected to the fieldbus in the past but is not currently connected on the graphical display screen. The display is performed by using an icon in a mode different from the icon representing the field device currently connected at the position on the field bus that is displayed on the screen when the device is connected. 4. The indicator according to any one of 4. Alarm information collecting means for acquiring an alarm output from the field device via a field bus;
The storage means stores an alarm icon corresponding to the type of alarm output by the field device,
The graphical display means is based on the alarm acquired by the alarm information collecting means and is adjacent to an icon representing the field device that has output the alarm on the graphical display screen with the alarm icon. The indicator according to any one of claims 1 to 5, wherein the indicator is displayed.