JPH0514965A - Central control device - Google Patents

Abstract

PURPOSE:To make it possible to clarify a communication abnormality by displaying the code of signal data inputted from an interface using a monitor controller and facilitating the setting of the communication conditions of a signal between a centralized control device and a host control equipment. CONSTITUTION:When a switch (keyboard 6) of a monitor is turned on, a processor unit 1 outputs a signal inputted from an interface 16 to a monitor controller 17. After the controller 17 stores the signal code from the unit 1 temporarily, a display is performed by outputting it to a liquid controller 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process at the time of connecting a centralized control device for controlling the operation of a plurality of air conditioners with another host control device.

[0002]

2. Description of the Related Art As a conventional centralized control device, Japanese Patent Application No.
There was one as described in No. 52311. What is described in this application is to control the operation of a plurality of air conditioners arranged in the same building by using a centralized control system composed of a main control unit and a sub-control unit. It was

[0003]

In the conventional centralized control device having the above-described structure, when transmitting and receiving a signal to and from another host control device, the communication condition is deciphered using a protocol analyzer or the like, and then the It was necessary to set it according to the conditions.

In addition, it is necessary to monitor the communication state in the same manner when a program for the host control device is created, or at the time of failure or abnormal operation, and a monitor device such as a protocol analyzer must be interrupted in the signal line each time. was there.

The present invention provides a centralized control device having a built-in monitor function for such problems.

[0006]

According to the present invention, a plurality of air conditioners are installed in the same building, and a centralized control device for centrally controlling these air conditioners via a signal line is used. A communication port for transmitting and receiving a signal to and from a device, a monitor function for displaying a signal input from the communication port on a display unit, and a switch for canceling the monitor function are provided.

[0007]

The central control device of the present invention is provided with the monitor function for displaying the signal input from the communication port on the display section, so that the input signal can be directly displayed. It is possible to directly monitor the communication of.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the main circuit configuration of this device. In this figure, 1 is a processor unit (CP
U), which controls the operation of the centralized control device. Reference numeral 2 is a ROM (second read-only storage unit), and C
The program of PU1 is stored. Reference numeral 3 denotes a RAM (first readable / storable first storage unit) which stores setting data, temporary storage data, and the like. Reference numeral 4 is a graphic ROM (stores data when displaying on the liquid crystal display panel), and stores character data or character data. Reference numeral 5 is a real-time clock (clock). 6 is a keyboard for data input, and 7 and 8 are an output controller and an input controller, respectively. Reference numeral 9 is a printer, and 10 is a liquid crystal controller, which controls the display on the liquid crystal panel. 11 is a ROM,
The liquid crystal controller 10 is a storage unit that stores display data. Reference numeral 12 denotes a ROM, which is detachably attached to the bus line 14 via the connector 13. By mounting this ROM, the option program can be executed. Reference numeral 15 denotes an interface, which transmits / receives a signal to / from a slave whose operation is remotely controlled by this device. Reference numeral 16 denotes an interface, which sends and receives signals to and from other devices (upper control devices, etc.). Reference numeral 17 denotes a monitor controller, which bridges a signal input from the interface 16 (accepts a signal from the communication port) to the liquid crystal controller 10.

Therefore, when the switch (keyboard 6) for monitoring is turned on, the processor unit 1 outputs the signal input from the interface 16 to the monitor controller 17. The monitor controller 17 temporarily stores the signal code from the processor unit 1 and then outputs it to the liquid crystal controller 10 for display.

The operation procedure for monitoring will be described below. FIG. 2 is a front view of the centralized control device showing a state where the liquid crystal display panel 18 is displaying the initial screen. First, the cursor key 19 is operated to select the item "communication setting". When the cursor is moved to "communication setting", a submenu is displayed on the lower side of the liquid crystal display plate 18, and a desired menu is selected using the selection keys 20 to 23. In FIG. 2, only “communication setting” is shown. 3 is a front view of the liquid crystal display panel 18 after pressing the select key 20 in the state shown in FIG.
The use of the "normal use" mode or the "debug" mode is set with the selection keys 20 and 21 (initially the "normal use" mode). The "debug" mode actually connects a child device such as an air conditioner. It is possible to cause the host control device to perform the operation without the need.

FIG. 4 is a front view of the liquid crystal display panel 18 showing a state in which the cursor key 19 is operated to set the cursor to the baud rate setting. The baud rate can be set to 600-9600 boats by operating the selection keys 20 and 21. The set baud rate value is stored in the RAM.
The FCC check is set in the same way.

FIG. 5 shows "communication confirmation" in the display state shown in FIG.
It is a front view of the liquid crystal display panel 18 when is selected, and is a state in which some communication data is captured and data is confirmed (displayed). In this display, the underlined data is data from a higher-level control device (such as a higher-level computer).

[0013]

As described above, since the centralized control device of the present invention uses the monitor function to display the signal input from the communication port on the display unit, the setting of the communication condition when performing the data communication with the host control device. In addition, even if a communication error occurs between this device and the higher-level control device, it is possible to clarify the error without inserting a separate analyzer such as a protocol analyzer into the signal line. The operation can be restored by shortening the stop time of this device.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main circuit configuration of an apparatus of the present invention.

FIG. 2 is a front view of the device of the present invention.

FIG. 3 is a front view of a liquid crystal display panel showing a display state when communication setting is performed.

FIG. 4 is a front view of a liquid crystal display panel showing a display state when setting a baud rate.

FIG. 5 is a front view of a liquid crystal display panel showing a display state when confirming communication.

[Explanation of symbols]

 1 Processor Unit 10 LCD Controller 16 Interface 17 Monitor Controller

Claims (1)

Claims: What is claimed is: 1. A central control device, comprising a plurality of air conditioners arranged in the same building, and centrally controlling these air conditioners via signal lines. A centralized control device comprising a communication port for transmitting and receiving signals, a monitor function for displaying a signal input from the communication port on a display unit, and a switch for canceling the monitor function.