JPH0496117A - Input/output terminal unit - Google Patents

Abstract

PURPOSE:To attain the packaging with high density with wiring saving by constituting this unit so that wiring terminals in the unit can be selected separately as an input terminal or an output terminal with an input/output module. CONSTITUTION:In input/output (I/O) terminal units 30, 32, each of wiring terminals is formed from a pair of input terminal and output terminal, so that one wiring terminal of the input terminal or the output terminal can be selected by input/output modules. Accordingly, the I/O terminal units 30, 32 can mix and mount the input module 34 and the output module 36, and an input equipment and an output equipment can be connected freely to one terminal unit. In such a manner, comparing with a conventional exclusive terminal unit for an input or an output, the number of generation of unused terminals can be decreased, and packaging can be executed with high density by wiring saving.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention is directed to I10 used for electronic control wiring of NC machine tools, automatic assembly machines, sequence controllers, etc.
Related to terminal unit.

[Prior Art] FIG. 6 is a block diagram showing a conventional electronic control wiring system.

In the figure, reference numeral 10 denotes a main controller as a base unit, which controls input/output signals of, for example, a machine tool or the like according to an automatic operation program. 12 is serial/parallel (
S/P) interface converts the parallel data output from the main controller 10 into serial data and outputs it to the subsequent stage, while converting the serial data input from the latter stage to parallel data and sends it to the main controller 10. input. 14 is an input-only I10 terminal unit, for example 5W1
Input wiring such as 6 and photointer 18 is connected. 20
is an output-only I10 terminal unit to which, for example, output wiring for the motor 22, electromagnetic valve 24, etc. is connected.

In the above configuration, the parallel input/output signals of the main controller 10 are converted into serial input/output signals by the S/P interface 12, and the input-only I10 terminal unit 1
4 and 110 terminal unit 20 dedicated for output. Such serial transmission achieves a reduction in the number of wiring lines.

[Problems to be Solved by the Invention] However, the conventional I10 terminal unit 14.20 as described above is distinguished as an input or output unit, and it is not possible to connect input wiring and output wiring within the same unit. There were drawbacks. In other words, the number of input and output points varies depending on the wiring system, but
Therefore, depending on the system, unused input/output terminals may be left in the I10 terminal unit. Therefore, there is waste as a system, which is disadvantageous in terms of cost and wiring system configuration.

The present invention has been made to solve the problem of the above-mentioned conventional technology, and its purpose is to
0 terminal unit.

[Means for Solving the Problems] In order to achieve the above object, the I10 terminal unit according to the present invention comprises each wiring terminal as a set of input terminals and output terminals, and connects the wiring terminals to input terminals or output terminals by an input/output module. It is characterized by selecting one of the wiring terminals.

[Function] According to the I10 terminal unit of the present invention having the above configuration, the wiring terminals within the unit are individually selected as input terminals or output terminals by the input/output module.

[Embodiments] Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

FIG. 3 is a block configuration diagram showing an electronic control wiring system to which the I10 terminal unit of the present invention is applied, and the same or corresponding parts as in FIG. 6 are given the same reference numerals, and a description thereof will be omitted.

In FIG. 3, 30 and 32 are I10 according to the present invention.
A terminal unit is a wiring terminal consisting of a set of input terminals and an output terminal, or a plurality of wiring terminals, such as 4 points, 8 points, 1
6 points, 24 points, etc. are provided. 34
is an input module according to the present invention, which is mounted corresponding to each wiring terminal of the I10 terminal units 30 and 32, so that the terminal used in the wiring terminal is set as an input terminal. 36 is an output module according to the present invention;
By being mounted corresponding to each wiring terminal of the 10 terminal units 30 and 32, the terminal used in the wiring terminal is set as an output terminal.

r10 terminal unit 3 of the present invention having the above configuration
0.32 is input module 34 and output module 36
It is possible to mix input devices and output devices to one terminal unit. In other words, the wiring terminal with the input module mounted is connected to switch 1.
6. A photo interface 18, a micro switch, etc. can be connected. Furthermore, the wiring terminal on which the output module 36 is mounted can be connected to the motor 22, the electromagnetic valve 24, a solenoid, or the like.

In this way, by making the terminal unit an input/output type, it is possible to reduce the number of unused terminals compared to conventional terminal units dedicated for input or output, resulting in cost and wiring savings. There are big benefits.

Next, referring to FIGS. 1 and 2, I10 of the present invention
Describe the terminal unit and input/output module.

FIG. 1 shows an I10 terminal unit according to the present invention, in which (a) is a plan view, (b) is a schematic diagram of the internal circuit, (c) is a side view, and (c) is a side view. d) is a circuit diagram of the signal processing section. Figure 2 shows an input/output module according to the present invention, where (a) is a circuit diagram of the input/output module, (b) is a circuit diagram of a DC output module, and (C) is a circuit diagram of an AC output module. FIG. 3 is a circuit diagram of an output module.

In FIG. 1, reference numeral 40 denotes an input/output module connection section, in which input/output modules are connected and mounted via bin terminals.

42 is a power transmission jack to which, for example, a power line such as AClooV or DC12V is connected as shown in FIG. 1(b). 44 is a control signal transmission jack to which a control signal line such as an input signal from an input device connected to the I10 terminal unit or a control signal from the controller 10 is connected. Reference numeral 46 denotes a signal processing unit, which executes serial in-parallel out for external human power and internal output, and parallel in and serial out for internal human power and external output, regarding the control signal. A circuit diagram of the signal processing section 46 provided for one module connection section 40 is shown in FIG. 1(d). Reference numeral 48 denotes a wiring terminal, which is structured in a stepped manner, for example, as shown in FIG. 1(c), and is connected to the mounted I10 module 50.
The terminal used by (input module 34 or output module 36) is selected.

For example, when the input module 34 shown in FIG. 2A is installed, a signal at the input terminal of the wiring terminal 48 is captured and transmitted to the I10 terminal unit 30. In addition, the DC output module shown in FIGS. 2(b) and (c),
When the AC output module 36 is installed, the output signal from the I10 terminal unit 30 is supplied to the output terminal of the wiring terminal 48 in response to the control signal input.

FIG. 4 shows a schematic circuit configuration of the S/P interface 12 of the electronic control wiring system (FIG. 3) using the I10 terminal unit 30 described above. Data between the main controller 10 and the S/P interface 12 is transmitted in parallel via a data bus, an address bus, a timing bus, etc. The parallel data input to each port is connected to an address bus port (for writing) 54, an address bus port 56 for reading, etc.
2, and is transmitted from the serial output terminal 58 to the I10 terminal unit 30.

Further, serial data input from the I10 terminal unit 30 to the serial input terminal 60 is converted from serial to parallel within the S/P interface 12, and transmitted from each of the above-mentioned photos to the main controller 10.

In the electronic control wiring system, the I10 number of I10 (wiring terminal) of the I10 terminal unit 30.32 can be assigned as an address by the main controller 10 or an address unit (not shown). Therefore, for example, 32 addresses can be set for one I10 terminal unit 30, and if four I10 terminal units are connected in cascade, a maximum of 0 to 127 addresses can be assigned.

When serially transmitting data to such an I10 terminal unit, the S/P interface 12 receives a clock signal C input from a pulse generator 62 shown in FIG.
The transmission timing is defined based on L. That is, the S/P interface 12 performs serial transmission while associating the pulse of the clock signal CL with the number 10 described above.

Then, the 128-bit count is performed using, for example, shift registers Q^ to QE, and finally the shift register QE outputs a Load signal by the clock signal CL outputted from rHJ at the timing when the output amount is rHJ, and then A clear signal is output.

With the above configuration, the I10 terminal unit of the present invention allows a wiring system to be constructed according to the total number of input/output devices without distinguishing between input and output devices, and since it is sufficient to provide the minimum number of terminal units, It is possible to reduce wiring costs and shorten wiring time (period).

[Effects of the Invention] As explained above, according to the input/output terminal unit of the present invention, input devices and output devices can be freely connected to the same input/output terminal unit, and only the total number of input/output points is considered. Since the wiring system can be designed based on the wiring system, it is advantageous in terms of design, and high-density packaging can be achieved by reducing wiring.

[Brief explanation of drawings]

Figures 1(a) to (d) are block diagrams showing an I10 terminal unit according to the present invention, Figures 2(a) to (c) are circuit diagrams showing an input/output module according to the present invention, and Figure 3 is a circuit diagram showing an input/output module according to the present invention. A block configuration diagram showing an electronic control wiring system to which the I10 terminal uni-soto of the present invention is applied. Figure 4 is a schematic circuit configuration diagram of the S/P interface in Figure 3. Figures 5 (a) and (b) are FIG. 3 is a schematic circuit diagram and timing chart of a pulse generator, and FIG. 6 is a block diagram showing a conventional electronic control wiring system. 30.32 ... I10 terminal unit 34
... Input module 36 ... Output module

Claims (1)

[Scope of Claims] An input/output terminal unit in which a plurality of wiring terminals consisting of input terminals or output terminals are provided, and the wiring terminal to be used is determined by an input/output module mounted corresponding to each of these terminals, An input/output terminal unit, wherein each of the wiring terminals includes a set of input terminals and output terminals, and the input/output module selects either the input terminal or the output terminal.