JPH0464101A - Controller - Google Patents

Abstract

PURPOSE:To securely select one of arbitrary set value groups with a simple operation and to set plural values constituting the set value group in a short time by preserving the plural set value groups and selecting one group according to selection information from the outside. CONSTITUTION:A set value group preservation part 6 is provided to store plural set value groups, and when a selection tool 3 is inserted from an inserting port 12, a selection tool interface 5 reads selection information 13 recorded to the selection tool 3 and transmits the information to a selection value group selection part 7. While receiving this information, the set value group selection part 7 reads one set value group shown by the selection information 13 from the set value group preservation part 6, the read set value group is transmitted to a control part 8, and plural set values constituting the set value group are respectively set. Thus, with the simple operation only of inserting the selection tool 3, one set value group is selected and plural desired set values are set in a short time.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a control device that controls a controlled device based on a detection signal from a sensor or the like and a set value, and can be applied to, for example, a controller used in an instrumentation control system.

[Conventional technology]

For example, in a PID controller, detection signals from various external sensors, preset SP (target value), PID
By comparing various set values such as constants and performing predetermined calculations, a signal for controlling the controlled device is output. Therefore, before performing control operations, it is necessary to set the various set values for the controller. Conventionally, this setting operation has been performed manually. FIG. 5 is a flowchart showing the procedure of a conventional setting operation when setting the set values P and SP. In the figure, first, in step ST1, press the P key, then in step ST2 press the numeric start key, input the desired setting value, and then press the numeric confirmation key to set the value of P. . Next, after pressing the SP main key in step ST3,
In step ST4, the value of SP is set by performing the same operation as in step ST3.

[Problem to be solved by the invention]

As mentioned above, in conventional controllers, each setting value is set one by one according to the procedure shown in Figure 5, which is very time-consuming and prone to errors. was there. Therefore, an object of the present invention is to provide a control device for a controller or the like that can set various set values with simple operations.

[Means to solve the problem]

In this invention, a selection tool is prepared in which a plurality of setting value groups consisting of a plurality of setting values are stored in a memory, selection information for selecting one of them is recorded, and this selection tool is used. It is inserted from outside and its selection information is read.

[Effect]

One of the set value groups is selected by a simple operation of inserting the selection tool, and a plurality of desired set values are set in a short time.

【Example】

An embodiment in which the present invention is applied to a controller will be described below with reference to the drawings. In FIG. 1, 1 is a controller, 2 is various sensors connected to the controller 1 and provided on controlled equipment (not shown), etc.
The third item is a selection tool which will be described later. In the controller 1, 4 is an input section into which a detection signal from the sensor 2 is input, and includes an A/D converter and the like. 5 is a selection tool interface as a means for reading selection information recorded in the selection tool 3, which will be described later; 6 is a setting value group storage section in which a plurality of setting value groups are stored; and 7 is a selection tool interface 5 for reading selection information. A setting value group selection section takes out one setting value group from the setting value group storage section 6 based on the selection information, and 8 indicates the detection signal obtained through the input section 4 and a setting value group taken out from the setting value group storage section 7. 9 is an output section that outputs a signal to control the controlled device according to the calculation result of the control section 8. Note that the setting value group is configured by grouping some of the plurality of types of setting values, and a plurality of the setting value groups are stored and saved in the setting value group storage section 6. These multiple setting value groups are configured to be set through an external man-machine interface. In FIG. 2, the front panel of the controller 1 has a display section l.
O1 Various production keys 11 are provided, and an insertion opening 12 for the selection tool 3 of the selection tool interface 5 is also provided. Further, in the example shown in FIG. 2, the selection tool 3 is formed into a card shape. This selection tool 3 has selection information 13 made of an uneven shape recorded on one end thereof, and a label 14 made of the letters "Product A" for specifying the selection tool 3. In this example, it is assumed that the controlled device is a manufacturing machine, and when the manufacturing machine manufactures "product A", the illustrated selection tool 3 is used. FIG. 3 shows a case where the selection tool 3 is formed into a key shape. The selection tools 3 shown in FIGS. 2 and 3 are made of cardboard or the like, for example. The selection tool 3 may be modified in many other ways, and the selection information 13 may be recorded mechanically, electrically, fI! !
Pneumatic, optical, etc. methods may be used. In addition, selection information 1
The selection tool interface 5 as the reading means in No. 3 can also use various reading methods depending on the recording method described above. Next, the operation of the above configuration will be explained. First, a suitable selection tool 3 is selected from a plurality of selection tools 3 based on the specific information on the label 14, and the selection tool 3 is inserted through the insertion port 12 of the control device. Then, the selection tool interface 5 reads the selection information 13 recorded on the selection tool 3 and sends it to the setting value group selection section 7. In response to this, the setting value group selection unit 7 reads out one setting value group indicated by the selection information 13 from the setting value group storage unit 6. By sending the read setting value group to the control unit 8, a plurality of setting values constituting the setting value group are respectively set. Next, the procedure for setting a set value group in the set value group storage section 6 through the man-machine interface will be described with reference to the flowchart of FIG. 4. First, in step STI, the set value group set start key is pressed and the group number is set. Next, in step ST2, the same operations as those in steps STI to ST4 in FIG. 4 are performed. For example, the values of P and SP are determined by this. Next, in step ST3, when the setting value group set end key is pressed, the above-mentioned P is returned. Values such as SP are stored in the setting value group storage section 6.

【Effect of the invention】

According to the present invention, a plurality of setting value groups are stored and one of them is selected and used based on selection information from the outside. By selecting one of the setting value groups, it is possible to set the plurality of setting values constituting the setting value group reliably and in an extremely short time. I where the setting value group is recorded
A method of inserting a C card, magnetic card, etc. is also considered, but in this invention, a plurality of setting value groups are provided internally, and only the selection information is recorded in the selection tool, so the control device itself can be self-contained. The selection and setting of the setting value group is performed in a timely manner, and therefore the amount of information is small, and selection tools can be manufactured at low cost.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a control device according to an embodiment of the present invention, FIG. 2 is a perspective view of the same device and a selection tool, FIG. 3 is a perspective view of another embodiment of the selection tool, and FIG. 4 5 is a flowchart showing a procedure for setting a set value group, and FIG. 5 is a flowchart showing a procedure for setting a set value for a conventional control device. 2 is a controller, 2 is a sensor, 3 is a selection tool, 5 is a selection tool interface, 6 is a set value group storage section, 7 is a set value group selection section, and 13 is selection information. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. No. ila J13fIlj

Claims (1)

[Claims] A control unit that performs predetermined calculations based on various input detection signals and various preset setting values and outputs a signal according to the calculation result, and a plurality of setting values forming one setting value group. , a setting value group storage section in which a plurality of the setting value groups are stored, and a selection tool in which selection information for selecting one setting value group from the plurality of setting value groups is recorded are provided from the outside. a reading means for reading the selection information when the selection information is read, and a setting value group selection section that extracts one setting value group from the setting value group storage section based on the read selection information and supplies it to the control section. control device.