JP2002111681A - Display and control unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To overcome the problem of prior art display and controller such that the size is bulky, installation work is troublesome, workability of the altering/setting work of set temperature is low because a large number of detection signal transmission lines and state setting control lines are required individually, a liquid crystal or LED display has a functional limitation, and versatility is low because an extra communication line is required for integrally monitoring various data through a host computer. SOLUTION: The display and control unit comprises a first communication means 25 for communicating with individual controllers 9 for a plurality of controlled sections 31, means 241 for selecting individual objective controllers, an LED address display means 231 for displaying the location of individual objective controllers, LED state display means 234 and 235 for displaying the current state of the controlled sections, means 243 for switching the mode of current state and set state and further switching to mode display, and state setting means 245 and 246 for transmitting set data to the individual objective controllers at the set mode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display and control unit suitable for monitoring and controlling the conditions such as temperature and humidity of a plurality of controlled parts of a large-scale manufacturing apparatus such as a furnace.

[0002]

2. Description of the Related Art FIGS. 4 and 5 are explanatory diagrams showing examples of use of a conventional display and controller. In FIG. 4, 1
Is a furnace, and 2 is a plurality of controlled parts for setting the internal temperature, which are locations for detecting the temperature. Reference numeral 3 denotes a control panel, 4 denotes a display, and 5 denotes an operation unit for setting the temperature of each controlled unit 2. The control panel 3 is installed at one location and has a built-in controller, so that the state of each controlled part 2, that is, the entire temperature, can be simultaneously displayed and monitored by the display 4. The change and setting of the temperature of each controlled unit 2 is performed by the operation unit 5. Therefore, the size of the control panel 3 is often large.

In FIG. 5, reference numeral 6 denotes a furnace for soldering or heating an object to be heated 10 such as a printed circuit board. Reference numeral 7 denotes each controlled unit in which a heater for heating is arranged, and 8 denotes a display for displaying the temperature of each controlled unit 7. Reference numeral 9 denotes an individual controller provided for each controlled unit 7. The object to be heated 10 is conveyed by a furnace 6
Is inserted from the inlet 11 and taken out from the outlet 12. In the process of being transported in the furnace 6 and passing through each controlled part 7,
The object to be heated 10 is heated to a temperature set by each of the controlled parts 7. The temperatures of the controlled parts 7 are set by the individual controller 9. In addition, each controlled unit 7
The current temperature (current state) is indicated by a display 8 provided in one place.
Can be displayed and monitored. The temperature detection data to the display 8 is sent from the individual controller 9 via the communication network 13.

[0004] Liquid crystal displays and LED displays are mainly used for recent displays. Conventional systems combining these with a controller are shown in the block diagrams of FIGS. In FIG. 6, reference numeral 14 denotes a liquid crystal display, which reads out detection data indicating the current temperature (current state) of the controlled unit from the plurality of individual controllers 9 and receives the data through the communication network 13. The detected data is, for example, numerically displaying the temperature or graphed and displayed on a large screen by a screen display program produced in advance.

In FIG. 7, reference numeral 15 denotes an LED display which reads detection data indicating a state of a controlled part from a plurality of individual controllers 9 and converts an electric signal converted into a current or a voltage corresponding to a value meaning the data. Receive through a separate transmission line 16. In this case, the received electric signal is returned to the original data by a certain conversion operation and displayed. LE
The D display 15 is divided into individual display blocks, and each display block displays the detected temperature of the controlled part corresponding to the individual controller.

[0006]

The conventional display and controller are constructed as described above, but the control panel 3 as shown in FIG. 4 monitors the entire state of each controlled part 2 at one place. Although it is advantageous in that the temperature can be changed and set, the size of the display 4 becomes large,
A large number of individual transmission lines for detecting signals for displaying the state between the control panel 3 and the control line for temperature setting are required, which is complicated in installation. In addition, in the case of FIG. 5, the transmission of the detection data between the display 8 and each individual controller 9 can be performed via the communication line 13 so that the complexity of wiring is removed. In order to change or set the parameters, it is necessary to go to the corresponding individual controller 9 each time. If the total length of the furnace 7 is large, there is a problem in workability in an emergency. Furthermore, when a liquid crystal display is used, multi-faced display is possible, but a program for displaying data is required, which makes the production time consuming, and the price of the display is reduced by the cost of the product. This was affecting downtime. On the other hand, when an LED display is used, it has no function other than displaying the determined individual data, and the display function is poorly expandable. To display other data, another display is required. There were problems such as increasing the number of blocks and hindering compactness. Furthermore, in the conventional display and controller environment, when various data are integratedly monitored by a computer higher than the display, another communication line may be provided between the computer and the individual controller, or the controller may be provided. For this purpose, a communication means must be added, and there is a problem of lack of versatility.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and uses an LED display, can extend a display function without taking up a display space, and exchange data with an individual controller. Accordingly, an object of the present invention is to provide a simple and versatile display and control unit that facilitates setting of the state of a controlled unit and easily expands a communication function for an upper layer.

[0008]

A display and control unit according to the present invention is provided for each of a plurality of controlled parts, extracts detection data of the current state of each of the controlled parts, and displays the detected parts. First communication means for communicating with the plurality of individual controllers controlling the setting state, controller selecting means for selecting a target individual controller from the plurality of individual controllers, number, location, etc. of the selected target individual controller It is characterized by comprising LED address display means for displaying an address, and status display means for reading data stored in the target individual controller through the first communication means and indicating the type of the data.

In the display and control unit according to the present invention, there are a plurality of state detection points of the controlled part, and the individual controller extracts the detection data of these state detection points and controls the setting state of each detection point. A channel selecting means for selecting the channel, a means for displaying the number of the selected channel, and an LE corresponding to the number of the channels.
D state display means.

The display and control unit according to the present invention extracts detection data of the current state of each controlled part from each individual controller in a predetermined cycle and stores it together with the address display data of the individual controller, the setting data of the setting state, and the like. Storage means for storing the information.

The display and control unit according to the present invention reads and transmits address display data, current state detection data, setting state setting data, and the like of the controller from the storage means in response to a request from a remotely located computer. A second communication unit for performing the operation.

[0012] In the display and control unit according to the present invention, in each of the plurality of individual controllers, a parameter of the setting state for operating the product by a series of combinations of setting states of the corresponding controlled parts is set. A product setting data creating unit that has a storing function, reads a plurality of data for operating the individual controller with the parameters from the individual controller, creates product setting data for each product, and stores the product setting data in a storage unit;
Product selection means for selecting and reading the product setting data from the storage means and transmitting the read data to each of the individual controllers.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is a block diagram showing a schematic configuration of a display and control unit according to Embodiment 1 of the present invention.
FIG. 2 is a perspective view showing an appearance of the unit, and FIG. 3 is a block diagram showing a schematic configuration of an individual controller. Parts that are the same as or correspond to those in other figures are denoted by the same reference numerals. First, the individual controller for transmitting and receiving data to and from the display and control unit of the present invention will be described.

In FIG. 3, reference numeral 91 denotes a central processing unit (hereinafter referred to as a CPU), and reference numeral 92 denotes a memory. 93
Is a detection input circuit that detects the temperature of the controlled unit 31 and provides it to the CPU 91; and 94 is a control output circuit that outputs a control signal for setting the temperature of the controlled unit 31 in accordance with an instruction from the corresponding CPU 91. Reference numeral 95 denotes communication means for communicating with the display and control unit 20 (FIG. 1) via the communication network 32. 96 is a signal from the CPU 91 for stopping the operation of the individual controller 91 and for using the signal for other purposes.
A digital input unit 97 is provided to the controlled unit 31.
Alternatively, it is a digital output unit for extracting an alarm output for reporting an abnormality of the individual controller 9. An optional input / output circuit for extracting a signal for recording the operation of the individual controller 9 in a recorder (not shown).

Next, the operation of the individual controller 9 will be described. The individual controller 9 arranged for each controlled unit 31 detects the temperature (current state) of the corresponding controlled unit 31 in a predetermined cycle, converts the detected data into detection data by the CPU 21, and stores the data in the memory 22. When the stored detection data receives a read command from the display and control unit 20, it is transmitted to the display and control unit 20 via the communication means 95 and the communication network 32. Also, setting data for the set temperature sent from the display and control unit 20 via the communication network 32 is received by the communication means 95, stored in the memory by the CPU 91, and controlled by the control output circuit 94 to control the control signal. Output to the section 31 to heat a heater (not shown) so as to obtain a set temperature.

The individual controller 9 may be capable of detecting the temperature at a plurality of locations of the controlled unit 31, and in this case, a plurality of detection input circuits 93 are provided. Each detection data is stored as a channel in the memory 92.

For a product made by passing through a plurality of controlled parts 31 of the furnace, there are baking procedures / processes (commonly called "recipe") depending on the type of the product. That is, there is a combination of the set temperatures assigned to each controlled unit 31 depending on the product, and the combination of the set temperatures is changed every time the type of the product is switched. The operation of switching the set temperature by such a combination becomes extremely complicated depending on the scale of the process. In order to solve this problem, a small computer is connected to the option input / output circuit 98, and a parameter of a set temperature to be assigned is input and stored in the memory 92 as data. And a display and control unit 2
The 0 side reads this data and stores the setting data obtained by combining the setting temperatures of the controlled parts 31 as a database.

Referring to FIG. 1, the display and control unit will be described. Reference numeral 20 denotes a display and control unit.
Reference numeral 1 denotes a CPU; and 22, a memory for writing and reading data to and from the CPU 21. Reference numeral 23 denotes an LED display for performing various displays, and reference numeral 24 denotes an input key for performing various selections or condition settings. Reference numeral 25 denotes communication means (first communication means) for exchanging data with the display and control unit 20 via a communication network 32 with a device at a lower level, and reference numeral 26 denotes a communication means with a host computer 34 via a communication network 33. Communication means for exchanging data (second communication means). Reference numeral 27 denotes a digital output unit for extracting a warning signal from the CPU 21 and driving a buzzer 29. Reference numeral 28 denotes an input for shutting down the switch 30 during operation of the furnace to simultaneously stop the lower order individual controllers 9 and other inputs. This is a digital input unit for taking in a function input into the CPU 20. Reference numeral 31 denotes a controlled part for detecting and setting the temperature (state), such as a furnace. Reference numeral 9 denotes an individual controller for detecting the temperature of each controlled unit 31 and converting it to data, and for providing a control signal for setting the temperature to the controlled unit 31.

Next, the operation of the display and control unit 20 will be described with reference to FIG. By operating the controller selection key 241 of the input keys 24, the target individual controller 9 is selected by the CPU 21. C
The LED display 23 receives the output of the PU 21, and an address symbol indicating the number or location of the selected individual controller 9 is displayed on the address display surface 231 of the LED. CP
From U21, a command to read out the current temperature detection data is sent to the individual controller 9 via the communication means 25.
The read detection data is received by the CPU 21 and stored in the memory 2.
2 and the current temperature is displayed on the temperature (state) display surface 234 of the LED. The display indicating that the current temperature is displayed is performed by turning on a current temperature (current state) reading mode display lamp 236 of the LED.

The display and control unit 20 sends a read command to each individual controller 9 in a predetermined cycle to read out the detected data of the current temperature, sequentially stores it in the memory 22 together with the address display data, and rewrites the old detected data. Works. Therefore, the temperature display surface 2
The current temperature displayed on the display 34 and 235 is immediately read out from the memory 22.

When the temperatures of a plurality of portions of the controlled unit 31 are detected, the channel display is displayed on the channel display surface 232,
233, the current temperature of the corresponding channel is also displayed on the temperature display surface 234. When the number of channels is large, the current temperature is displayed on the status display screens 234 and 235 by switching the channel display screens 232 and 233 by selecting with the channel selection key 242.

When the temperature (state) of the controlled unit 31 is changed and set, the mode change key 243 is used. Then, the current temperature reading mode display lamp 236 turns off, and the set temperature (setting state) mode display lamp 2
37 lights up. At this time, the temperature display surfaces 234 and 235 display the set temperatures. To change the displayed set temperature, the user operates the parameter selection key 245.
When the set temperature is determined for each individual controller 9 of each number and the set temperature set key 246 is operated, the set data of each set temperature is stored in the memory 22 and transmitted to each individual controller 9, and the temperature of the controlled unit 31 is controlled. Used to control the By operating the mode switching key 243, both of the display lamps 236 and 237 can be turned on, and the current temperature of the selected channel is displayed on one of the temperature display surfaces 23.
4 and the set temperature of the channel is displayed on the other temperature display surface 235. Also in this regard, a plurality of data can be displayed using a limited display surface.

The remotely located computer 34 comprises:
The display and control unit 20 can be connected via the communication network 33. Further, the present invention can be similarly applied to a combination of the controlled unit 31, the individual controller 9, and the display and control unit 20 provided as another group. In this case, when a read command is received from the computer 34, various data such as address display data, current temperature detection data, and set temperature set data stored in the memory 22 are read from the memory 22. The data is transmitted to the computer 34 through the network 33. The computer 34 tabulates the collected data into a list.
Display on a large screen of RT or liquid crystal.

In the case where a baking procedure / process (recipe) is provided depending on the type of product, a set temperature parameter of a series of combinations handled by each controlled unit 31 is described as data obtained by auto tuning or the like. As described above, it is stored in 92 of each individual controller 9. On the other hand, in the display and control unit 20, product setting data for operating each controlled unit 31 at a series of set temperatures is created, stored in the memory 22 for each product. The method of creating the product setting data is, for example, classified into products A and B by a signal input to the digital input unit 28. Once the product is determined, the operation of the parameter selection key 245 and the set temperature set key 246 is then performed.
Data is read from each individual controller 9, collected as data for each product, and stored in the memory 22.

Next, for example, the digital input unit 28
Select the product according to the signal to be input to the
By operating the 45 and the set temperature set key 246, predetermined product setting data is read from the memory 22, sent to each individual controller 20 via the communication means 25, and stored in the memory 92. The individual controller 20 reads out its set temperature data from the memory 92,
A control signal is given to the controlled unit 31 via the control output circuit 4,
Control is performed so as to reach a predetermined set temperature. Therefore, the product process can be easily selected according to the switching of the product type, and the preparation and setting work of the process can be performed quickly and simply.

The memory 92 of each individual controller 9
Stores various data such as a PID and upper and lower limit temperature set values, and reads out these data to the display and control unit 20, stores them in the memory 22, and displays them. In that case, select parameter selection key 2
45 and the set temperature set key 246, and
4, 235. Further, these data are read and transmitted in response to a request from the host computer 34, and are used for remote monitoring.

The appearance of the display and control unit 20 in the first embodiment is shown in FIG. 2. The operation panel 201 on which the display 23 and the input keys 24 are arranged has the above-mentioned various keys and LED display surfaces. Is provided. The overall size can be accommodated by two golf balls in volume, and can be extremely compact. Therefore, the device does not take up much space at the time of installation and is easy to handle. The individual controller 9 provided corresponding to the controlled unit 31 also
Similarly, it can be stored in a compact size.

As described above, according to the display and control unit 20 of the first embodiment, the individual controllers 9 are combined with the individual controllers 9 arranged for the respective controlled sections 31 of the large furnace. The data of the current temperature of each controlled part 3 is communicated with the LED display 23.
Can be switched and displayed separately for each address and channel, and the set temperature of each controlled unit 9 can be displayed on the LED display 2
3 and the input keys 24, and can be transmitted to the individual controller 9 for control.
An effect of transmitting and displaying a series of current temperatures and other data of each of the lower controlled units 3 via communication can be obtained. In addition, in the case where a baking procedure / process (recipe) is provided depending on the type of product, product setting data for performing a combination of a series of setting temperatures assigned to each controlled unit 31 is simultaneously written or read into each individual controller 9. This has the effect that the workability can be further improved. Further, the combination of the CPU 21 and the LED display 23 capable of switching and displaying a plurality of displays has the effect of realizing a simple display and control unit of a compact size. In addition, since it has a higher-level communication function and a lower-level communication function, it is positioned as a main device when operating in combination with the lower-order individual controller 9, and is intermediate when operating with the upper-level computer 34. There is an effect that a new configuration positioned as the device of the above can be obtained.

[0029]

As described above, according to the present invention, the detection data of the current state of each of the controlled units which are respectively arranged for the plurality of controlled units is taken out, and the controlled unit is controlled to the set state. First to communicate with multiple individual controllers
Communication means, a controller selection means for selecting a target individual controller from among a plurality of individual controllers, an LED address display means for displaying a number, a location or the like address of the selected target individual controller, and a first communication means. The data stored in the target individual controller is read out, and status display means indicating the type of the data is provided, so that data of the current state of each controlled unit is exchanged by communication with each individual controller. ,
An LED display provided in a small space has the effect of displaying a plurality of current states of each controlled part by switching addresses.

According to the present invention, there are a plurality of state detection points of the controlled part, and the individual controller takes out the detection data of these state detection points, and has a channel-specific function of controlling the setting state of each detection point. In the case of having a plurality of controlled units, a plurality of controllable units are provided because the system includes a channel selection unit for selecting a channel, a unit for displaying the number of the selected channel, and an LED status display unit corresponding to the number of channels. Since the state data at the state detection points can be displayed simultaneously, there is an effect that the monitoring accuracy can be improved.

According to the present invention, the detection data of the current state of each controlled unit is extracted from each individual controller in a predetermined cycle, and the address display data of the individual controller,
Since it is configured to have a storage means for storing the setting data together with the setting data of the setting state, it is possible to collect data other than the current display data, to improve the responsiveness of the display, and to be effective in responding to the upper central monitoring device. .

According to the present invention, in response to a request from a remotely located computer, the address display data of the controller, the detection data of the current state, the setting data of the setting state, etc. are read from the storage means and transmitted. Since it is configured to have communication means, it can be easily connected if a network is laid, and it is possible to display a series of information of each controlled unit at a lower level to a computer remotely located at an upper level. There is an effect that can be done.

According to the present invention, each of the plurality of individual controllers has a function of setting and storing a parameter of a setting state for operating the product by a series of combinations of setting states of the corresponding controlled parts. A plurality of data for operating the individual controller with parameters are read from the individual controller, product setting data is created for each product, and product setting data creating means for storing the data in the storage means, and product setting data are selected from the storage means. Since the apparatus is provided with the product selection means for reading and transmitting the readout data to each individual controller, it is possible to quickly set a product-specific operation called a so-called recipe, and to further improve the workability of the process preparation.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a display and control unit according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing an appearance of a display and control unit according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing a schematic configuration of an individual controller that communicates with a display and control unit according to Embodiment 1 of the present invention.

FIG. 4 is a perspective view showing an external appearance of a usage example of a conventional display or controller.

FIG. 5 is a front view showing an external appearance of a usage example of a conventional display or controller.

FIG. 6 is a block diagram showing a schematic configuration of a conventional combination system of a liquid crystal display and a controller.

FIG. 7 is a block diagram showing a schematic configuration of a system in which a conventional LED display and a controller are combined.

[Explanation of symbols]

 1,6 Furnace 2,7,31 Controlled part 3 Control panel 4,8 Display 5 Operation part 9 Individual controller 10 Printed circuit board 11 Inlet 12 Exit 13,32,33 Communication network 14 Liquid crystal display 15 LED display 16 Individual Transmission line 20 Display and control unit 21, 91 CPU 22, 92 Memory 23 LED display 24 Input key 25, 26, 95 Communication means 27, 97 Digital output unit 28, 96 Digital input unit 29 Buzzer 30 Switch 34 Computer 93 Detection Input circuit 94 Control output circuit 98 Optional input / output circuit 201 Operation panel 231 Address display screen 232, 233 Channel display screen 234, 235 Status display screen 236 Current status read mode display lamp 237 Setting status mode display lamp 241 Control Roller selector 242 Channel selection key 243 Mode switching key 245 Parameter selection key 246 Set temperature set key

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Ryoichi Miyake 2-12-19 Shibuya, Shibuya-ku, Tokyo Stock Company Takeuchi Shayama (72) Yoshihiro Miyajima 2-12-19 Shibuya Shibuya, Shibuya-ku Tokyo Company Takeuchi F-term (reference) 3L061 BC01 BC02 BC07 5K033 AA09 BA03 BA08 DA01 DB20 EA06 EA07 EC01 EC03

Claims (5)

[Claims] A first control unit configured to extract detection data of a current state of each of the plurality of controlled units and communicate with a plurality of individual controllers for controlling the controlled unit to a set state; Communication means, controller selection means for selecting a target individual controller from among the plurality of individual controllers, LED address display means for displaying a number, location, etc. address of the selected target individual controller; A display unit for reading data stored in the target individual controller through a unit, and a status display unit for indicating a type of the data. 2. In a case where there are a plurality of state detection points of a controlled part and an individual controller has a channel-specific function of extracting detection data of these state detection points and controlling the setting state of each detection point, 2. The display according to claim 1, further comprising: a channel selection unit for selecting the channel; a unit for displaying a number of the selected channel; and an LED status display unit corresponding to the number of the channels. Controller unit. 3. A storage means for extracting detection data of a current state of each controlled part from each individual controller in a predetermined cycle and storing the data together with address display data of the individual controller, setting data of a setting state, and the like. The display and control unit according to claim 1 or 2, wherein 4. A second communication means for reading and transmitting address display data of a controller, detection data of a current state, setting data of a setting state, and the like from a storage means in response to a request from a remotely located computer. The display and control unit according to any one of claims 1 to 3, characterized in that: 5. Each of the plurality of individual controllers has a function of setting a parameter of the setting state for performing operation for each product by a series of combinations of setting states of the corresponding controlled parts. A plurality of data for operating the individual controller with the parameters, read from the individual controller, create product setting data for each product, and store the product setting data in a storage unit; and select the product setting data from the storage unit. The display and control unit according to any one of claims 1 to 4, further comprising: a product selection unit that reads out and sends the readout data to each of the individual controllers.