JPH05204444A - State display method of control system - Google Patents

Abstract

PURPOSE:To immediately display a working state on the display part of a setting device when key input operations such as the turning on of the power source of an equipment to be controlled, etc., are performed in a key operation part provided with the setting device in the control system of an air-conditioning equipment, etc. CONSTITUTION:When a key input operation (1) is performed for a setting device 3, the setting device 3 transmits a key input command signal to a master device for control 2 (3) and performs the state display (2) corresponding to the key input operation (1) before the device 3 receives a confirmation signal from the master device 2. Subsequently, when the displayed state display is different from the actual display of an operating device, the display is cancelled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a status display method for a control system, which enables speed status display of operating equipment when a key input operation such as power-on is performed on the setting device side.

[0002]

2. Description of the Related Art Recently, a plurality of operating devices (which will be described below by taking an air conditioner as an example) and a plurality of corresponding setters are connected to a common signal line. A control system is employed in which a master unit for control is connected to each air conditioner so that each air conditioner has a one-to-one correspondence with a setter. In this type of control system, when there is a key input operation with a predetermined setting device, the control master device transmits a command signal for the key input operation to the corresponding air conditioner controller, and then the controller causes the air conditioner to operate. When the status signal due to the operation control of is transmitted to the master device for control, the status is displayed on the setting device only when the master device for control receives and confirms the reception of this status signal. Therefore, it takes a considerably long time from the key input operation to the setting device until the status is displayed, and during this time, the operator is confused and the operation of the control system becomes distrustful.

Therefore, when there is a key input operation on the setting device, the master device for control sends back a command signal to the setting device so as to display a status corresponding to the key input operation. Attempts were made to reduce the time required to display the status. In this case, the control parent device returns the status display command signal to the setting device,
Send and receive control signals and status signals to and from the controller of the air conditioner, and then confirm and collate the status display that has already been performed and the actual status signal transmitted from the controller to the setter. Is becoming But,
In this case, when the key input operation is performed on the setter, the master device for control happens to perform another process, and the command signal may not be accepted. It took a while before the display was done.

[0004]

SUMMARY OF THE INVENTION An object of the present invention, which has been proposed in view of the above circumstances, is that when a key input operation is performed on a setter, the status is displayed immediately and the system controller is properly operated. To control.

[0005]

The present invention according to claim 1, which is proposed to achieve the above object, comprises a plurality of setting devices provided with a key operation part and a display part on the same signal line, In the status display method of the control system, in which the controller provided in each of the plurality of operating devices and the control master unit are connected, and the setter and the controller are individually controlled by the control master unit, When a key input operation is performed, the status is displayed immediately, then a key input command signal is sent to the control master unit, and the control master unit sends back the command signal to the setter to confirm and collate the display contents. A control signal corresponding to the above-mentioned command signal is transmitted to the controller corresponding to the setter that has performed an input operation, and the controller controls the operation of the operating device based on the control signal, and a status signal indicating the operating state. It transmits to the master unit for control, and the master unit for control compares the status signal transmitted from the controller with the status display on the setter, and switches the status display of the setter to the proper status display when the two are different. It is designed to let you. Further, according to the present invention of claim 2, after a key input operation is performed on the setting device, a predetermined time is required until the control master device returns the command signal to the setting device for confirmation and verification of the contents of the command signal. When the time has passed, the setting device cancels the status display performed based on the key input operation.

[0006]

According to the status display method of the present invention as set forth in claim 1, when a key input operation is performed on the setting device, the setting device itself immediately displays the status, and the waiting time for this is almost zero. Therefore, it does not matter at all at this point whether or not the control parent device is performing another process. Also,
According to the state display method of the present invention as set forth in claim 2, in the case where the setter sends a command signal to the control master unit after performing the state display as described above, the control master unit is different. When processing is in progress and the state in which the command signal cannot be accepted continues for a certain period of time, the status display performed by the setting device is canceled. The reliability can be increased.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an operation explanatory diagram showing an overall operation procedure in the status display method of the present invention. The case where there is a key input operation for turning on the power to the setting device 3 will be described.
Itself immediately displays the "ON" state, and then sends a command signal corresponding to the key input operation to the master unit 2 for control. The control parent device 2 once returns this command signal to the setting device 3 to check the contents of the status display. if,
If an error is found in the status display at this point, the displayed content is corrected or canceled. Next, the control parent device 2 transmits a control signal corresponding to the key input command signal to the controller 4, and the controller 4 controls the operation of the air conditioner 5 as an operating device based on this control signal. Further, the controller 4 determines the operating state of the air conditioner 5 to form a status signal, and transmits this to the control master device 2. Here, the control parent device 2 compares the status signal transmitted from the controller 4 with the status display on the setting device 3, and if they match, terminates the temporary processing for the key input operation, and if they are different, Then, a command signal is sent to the setting device 3 so as to switch it to an appropriate state display (10) such as "OFF". When the air conditioner 5 that has been operating is stopped by the controller 4 at the time when the timer is set, the controller 4 determines this and transmits a status signal to the control master device 2. The master device 2 sends a display switching command signal to the setting device 3 to turn off the status display (10).

By the way, the setter 3, the controller 4, and the air conditioner 5 are arranged such that predetermined ones correspond to each other in a one-to-one correspondence. FIG. 2 shows a hardware configuration of the control system. As described above, a plurality of these pairs are connected to the same signal line L. Therefore, when a key input operation is performed on one of the setting devices 3, a different key input operation may be performed on another setting device 3 almost at the same time. Therefore, at this time, the control parent device 2 receives the command signal sent from the one setting device 3, and therefore cannot accept the command signal sent from the other setting device 3. Such a thing can also occur while the master device 2 for control is communicating with a higher-level controller (not shown) connected to the signal line L, another controller 4, or the like. In this case, the setting device 3 that has been sending the command signal and cannot be accepted, even if it waits for a while, displays the status of the key input operation when no command signal is returned after the elapse of a predetermined time. Is displayed, and a message for clearly indicating the OFF display, the non-display state, or the invalid key input operation is displayed. By doing so, the operator is informed that the key input operation is invalid, the key input operation is prompted again, and reliable control can be performed. It is preferable to set about 2 seconds as the time required from the key input operation to the return of the command signal.

As shown in FIG. 2, the setting device 3 is
In addition to a power button, a temperature setting button, a timer set button, a key operation unit 6 having various switching buttons (all not shown), a display unit 7 including an LCD, etc. are provided, and the controller 4 is also provided. Includes a temperature sensor 8 and a relay output unit 9, and controls the air conditioner 5 by operating them based on a control signal transmitted from the control parent device 2 through the signal line L. In the present embodiment, the control system for air conditioning including the air conditioner 5 as an operating device has been described, but the state display method of the present invention can also be adopted in other power control systems, lighting control systems and the like.

[0010]

As can be understood from the above description, according to the method for displaying the status of the control system according to the present invention as set forth in claim 1, when there is a key input to the setting device, the setting device immediately displays the status. Since the display is performed and there is almost no waiting time for this, the operator is not confused and does not feel distrust of the control of the system. According to the state display method of the control system according to the present invention as set forth in claim 2, a state in which the command signal cannot be accepted by the control parent device even after the setting device has performed the above-described state display. When the display continues for a predetermined time, the state display is canceled, so that the reliability of the display when the display is continued is improved. At the same time, the operator is urged to perform the key input operation again, so that reliable control can be performed.

[Brief description of drawings]

FIG. 1 is an operation explanatory diagram showing an overall operation procedure in a status display method of the present invention.

FIG. 2 is a block diagram showing a hardware configuration of a control system.

[Explanation of symbols]

L ... Signal line 2 ... Control main unit 3 ... Setting device 4 ... Controller 5 ... Air conditioner

Claims (2)

[Claims] 1. A setting device and a controller, wherein a plurality of setting devices each having a key operation unit and a display unit, a controller corresponding to each of a plurality of operating devices, and a control master device are connected to the same signal line. In the status display method of the control system that is individually controlled by the control parent device, when the setting device has a key input operation such as power-on, immediately after performing a status display corresponding to the display unit, A command signal corresponding to the key input operation is sent to the master unit for control, and the master unit for control sends back this command signal to the setter to confirm and collate the display contents, and it also corresponds to the setter that had a key input operation. The control signal corresponding to the above command signal is transmitted to the controller to control the operation of the corresponding operating device, and the state signal indicating the operating state is transmitted from the controller to the control master unit, and the control master unit is transmitted. On the side, the status signal returned from the controller and the status display on the setting device are compared, and if the two are different, the status display displayed on the display of the setting device at the time of the above key input operation A method for displaying the status of the control system that is switched to display. 2. When a predetermined time elapses before the control master device returns a command signal to the setting device for confirmation and verification of the command contents after a key input operation such as power-on of the setting device, The control system status display method according to claim 1, wherein the setting device cancels a corresponding status display performed based on a key input operation.