JPS6036602B2 - time schedule control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a time schedule control device, and more particularly to a time schedule control device that can easily change the operating order of equipment or devices.

For example, a time schedule control device such as a pin board setting device is used as a device to sequentially operate multiple devices and devices with the same specifications, but with such a control device, it is becoming necessary to change the operating order (ropection). Become.

In general, time schedule control devices require that the moment-by-moment temporal dynamics of the equipment or equipment to be controlled can be clearly grasped, that it is easy to change the time at which control commands are given, and that the sequence circuit has a simple configuration. In addition to these requirements, it is also desirable to be able to change the operating order of multiple devices and devices as easily as possible.

FIG. 1 is a diagram schematically showing an example of a conventional pinboard type setting device 1, in which the number of control objects n and the number of control steps, that is, the number of process steps m are arranged in a matrix.

More specifically, the pinboard type setting device 1 includes pins 4 for individually setting process steps to which operation control commands are to be issued.
and a control channel CH, ~C having an output terminal that emits an output signal according to its setting as the process step progresses.
Hn, it advances one step at a time in response to a pulse from the reference pulse generator 2, and as time passes, output signals (run/stop (control commands such as open/open)
The sequential operation of the n number of control objects is controlled by issuing the . In the configuration shown in Fig. 1, the output terminals X, ~xn of the pinboard type setting device 1 and the control commands Y, ~Yn to the controlled object are in a fixed relationship, and each output device has the same output terminal as its output terminal. Issues a control command to the numbered control target. The number of the controlled object to which each output terminal, and therefore each control channel, is connected is displayed by controlled object number indicators ND, -NDn. Also, the progress of the process steps is indicated by the process indicator lights SD, ~SD.
Displayed by m. In Fig. 1, an example of pin setting to pinhole 3 of pinboard type setting device 1 is shown by pin 4 indicated by a large black circle. A control command Y, is issued in steps 5 to 5, and a control command Y2 is issued to the controlled object No. 2 in process steps 6 to 10, and the same applies hereafter. In the pinboard method, the time length of a control command is basically proportional to the length of the set pin row, that is, the number of pins set consecutively in the length direction of the control channel corresponding to the time axis. By inserting and removing the control command, the length of the control command can be changed. However, in the method shown in FIG. 1, since the output terminals X, ~xn of the pinboard type setting device 1 and the control commands Y, ~Yn to the controlled objects are in a fixed relationship, the same plurality of controlled objects or devices For example, the operating order of
When changing from No. → No. 2 → No. 3... No. n → No. 1... to No. 1 → No. 3 → No. n... → No. 2 → No. 1... There is.

{1' A major change in the settings of the pin is required. '2' m
As a result, plant downtime increases. '31'
1}, the chances of incorrect settings and poor pin contact increase, leading to a decrease in reliability.

The object of the present invention is to eliminate the above-mentioned drawbacks, and to eliminate the need to change pin settings at all when simply changing the operating order.
It is an object of the present invention to provide a time schedule control device that allows changing the operating order with extremely simple operations and provides highly reliable control. Next, the present invention will be explained based on Examples. FIG. 2 is a diagram vaguely showing an embodiment in which the present invention is applied to a pinboard type setting device IA.

In the present invention, output terminals X, ~Xn of the control channel of the pinboard type setting device IA and control commands Y,
-Yn is not fixed, but can be switched by the circuit chain switching device 5. In the example shown in FIG. 2, this circuit connection switching device 5 includes a rotation switching switch 6 having five positions, and a combination of connections to output terminals, . It consists of a control command switching device 7 for switching. Furthermore, the relationship between the controlled object number displays ND, ~NDn and the control channels is not fixed, and the control command switching device 7 switches the display of the displays ND, ~Non according to the combination of connections it is currently providing. I am supposed to do it. The control line from the rotation sliding door device 6 to the control command sliding door device 7 is shown as a single line, but in reality it can be composed of multiple lines that give binary code signals of a specific pattern, and the control line can be used to switch control commands. The device 7 is capable of switching the connection combination of the output devices X, .about.Xn to the controlled objects and switching the display of the display devices ND, .about.NDn by logical judgment. If the number of required rotations is six or more, the internal configuration of the circuit connection conversion device 5 may be changed to match the number of rotations. The control command switching device 7 often requires sophisticated interlocking and logical judgment between controlled objects due to rotation changes, and for this reason, specifically, a computer capable of program processing is used as a programmer. Configured as part of a full logic controller (sequencer). Display device ND, ~N
Dn consists of something changeable, for example an illuminated numeric display. As can be understood from the above description, the present invention provides a time schedule control device that can change the operating order of equipment and equipment with extremely simple operations and can perform highly reliable control. The scope of its application is extremely wide, including changing the operating rotation of pumps and changing the rotation of hot air in blast furnace ventilation.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of a conventional time schedule control device, and FIG. 2 is a diagram showing an embodiment of the present invention. IA: Pinboard type setting device, 3: Pinhole, 4: Pin, X, ~Xn: Output end, CH, ~CHn: Control channel, Y, ~Yn: Control command, ND, ~NDn: Controlled object number display 5: Circuit locking switching device. Figure 1 Figure 2

Claims (1)

[Claims] 1 a plurality of control channels having means for individually setting the process steps at which operational control commands are to be issued and outputs for issuing operational control commands in accordance with the settings as the process step progresses over time; In a time schedule control device that has a plurality of control objects that are individually controlled by operation control commands and a plurality of indicators that individually display which control object the output end of each control channel is connected to,
A circuit connection switching device is provided that switches the combination of connections of the output ends of the plurality of control channels to the plurality of controlled objects and switches the display of the plurality of indicators to match the combination of connections. Time schedule control device.