JPH0433106A - Control panel device - Google Patents

Abstract

PURPOSE:To deal with one transmission line with two cores by constituting a mainbody part with a program controller, installing the communication slave station of the program controller near the unit of an input-side arranged at the door-side of a control panel and connecting the slave station with the controller by means of the transmission line. CONSTITUTION:To The mainbody of a control panel device is constituted by the program controller 7 and the communication slave station 8 is provided at the door-side. Then, all reception signals are converted into digital signals. Thus, not only the digital signals for a switch and a display lamp but also analog signals for meters become the digital. Thus, the transmission line D connecting the communication slave station 8 and the controller 7 can be deal with the transmission line with two cores and maintenance is satisfactory.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a control panel device used for controlling various electrical devices such as a control device for a generator.

[Conventional technology] The conventional one was constructed as shown in FIG.

In the figure, 1 is a control panel, and la is its door.

This door 1a is configured to input the monitoring items necessary for controlling the control target (for example, an alternator) of the control panel device, and input devices 2a1 to 2a1, such as various failure indicator lights, etc. 2aゎ, input devices such as switches in the monitored part, 3a1 to 3an.

Input devices such as various meters to be monitored 4 a + ~ 4 a
It is equipped with n.

The data from each of these input devices is input to the control panel main body 6 via the terminal block 5 (terminal block) via the transmission line ~D2 dedicated to each data, and is input to the control panel main body 6 via the transmission line (~D2) dedicated to each data.
(not shown) outputs a control signal to perform necessary control over the alternator and the like.

[Problems to be Solved by the Invention] In the conventional system, data on the input side is transmitted to the control panel main body through dedicated transmission lines, so for example, when the object to be controlled is an alternator, the input Device 2 a + ~ 2 a 40 to 50 a, input device 3
5 to 10 al~3a7, input device 4al~J a
A large number of transmission lines, n being 5 to 6, were required.

In other words, in this case, a 2-core transmission line has a total of 50 to 60
If it is a real transmission line or a single-core transmission line, this is twice this, 100 to 1.
It was necessary to wire 20 transmission lines across the door inside the control panel.

Therefore, in addition to requiring a large number of man-hours to manufacture, there are problems in that maintenance during use is also troublesome, including wire breakage caused by opening and closing of the door.

An object of the present invention is to provide a control panel device that solves the above-mentioned problems of the conventional device.

[Means for Solving the Problems] The present invention comprises a main body of the control panel device including a program controller, and a communication slave station of the program controller is installed near an input side device placed on the door side of the control panel. ,
The present invention relates to a control panel device in which data from the input side equipment is transmitted to the program controller by connecting the communication slave station and the program controller with a transmission line.

[Example] The present invention will be specifically described below with reference to an example shown in FIG.

In the same figure, the same configuration as the conventional one is shown in the second section.
The same reference numerals as those in the figure are given.

In the control panel device of the present invention, as shown in FIG. 1, the control panel main body is first constituted by a program controller 7.

Moreover, by arranging the communication slave station 8 in place of the conventional terminal block 5, the input devices 2a+~2an, 3a~3an
After each data from 4al to 4a is received by the communication slave station 8, it is converted into a digital signal by an A/D converter within the station 8, and the signal is sent to the program controller 7 through a 2-core single transmission line. I started transmitting it.

Note that the other configurations are the same as the conventional one.

[Function] In the above configuration, the input devices 2a+ to 2 of the failure indicator light
a a, Input device 3 a from each switch to be monitored
+~3a A and input equipment from various meters 4al~
The individual data arriving at 4aa is transmitted to the program controller 7 via the communication slave station 8, where it undergoes predetermined arithmetic processing, and a required control signal (not shown) is issued to control the generator. Necessary control is performed on the control target such as.

By the way, in the present invention, the main body of the control panel device is composed of the program controller 7, and the communication slave station 8 is provided on the door side.
This is because all received signals are converted to digital signals by providing a

As well as digital signals for switches and indicator lights.

Since the analog signal for the meter is also a digital signal, the transmission line connecting the single communication slave station 8 and the controller 7 can now be completed with one two-core transmission line.

[Effects of the Invention] As described above, the present invention provides a control panel in which the main body of the control panel device is composed of a program controller, and the terminal block on the input side disposed on the door side is replaced with a communication slave station of the program controller. Since it is a device, it has excellent effects as described below.

■In the communication slave station, all analog signals are converted to digital signals, so the transmission line from the communication slave station to the program controller requires only one 2-core transmission line.

■Thus, the wiring across the door of the control panel equipment is greatly simplified, which simplifies the wiring work and improves the aesthetics of the equipment.The reduced number of wires also reduces accidents such as broken wires when opening and closing the door. Decrease.

In addition, maintenance has become easier because digital signals can be processed all at once by a computer or the like.

[Brief explanation of drawings] FIG. 1 is a perspective view showing an embodiment of the present invention. Further, FIG. 2 is a perspective view showing the configuration of a conventional example. control panel 1a: Door 2a+~2an: Input device 3a + ~ 3a b: Input device 4a+ゝ4aa: Input device 7: Program controller 8: Communication slave station D = transmission line

Claims (1)

[Claims] The main body of the control panel device consists of a program controller, a communication slave station of the program controller is installed near the input side equipment placed on the door side of the control panel, and the communication slave station and the program controller are connected by a transmission line. A control panel device characterized in that data from the input device is transmitted to a program controller by connecting the input device.