JPH0574975B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a multiplex signal transmission device that can be adapted to any input/output configuration.

[Background of the invention]

In conventional multiplex signal transmission equipment, the number of inputs and outputs for each unit varies from one to many, and there is a one-to-one correspondence between input units and output units. If the input/output information is scattered, a model with one input/output is suitable, and if the information is gathered, a model with multiple input/outputs is suitable.
However, if the input information is collected and the output information is scattered, none of the models can handle this, so a wasteful configuration is unavoidable.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a multiplex signal transmission apparatus which eliminates the above-mentioned drawbacks and is adaptable even when the input and output states are different.

[Summary of the invention]

The present invention comprises a plurality of input units and a plurality of output units, each having a different number of inputs and a different number of outputs, in order to transmit information between at least two or more points. A multiplex signal transmission device in which each of the plurality of input units has an input circuit, an address setting switch, and a usage number setting switch, a first control section, a first transmission circuit, and an input circuit. , a first control unit, and a first transmission circuit, an address setting switch sets an address, a number-of-use setting switch sets the number of input circuits to be used, and a plurality of outputs are provided. Each of the units has an output circuit, an address setting switch, and a number-of-use setting switch.
It has a second bus that connects the control unit, the second transmission circuit, the output circuit, the second control unit, and the second transmission circuit, and the address is set by the address setting switch, and the number of uses is set by the number setting switch. The number of output circuits to be used is set by , and the input circuits of multiple input units are numbered sequentially by the number of used inputs starting from the one with the smallest address, and the output circuits of multiple output units are numbered sequentially by the number of used outputs from the one with the smallest address. It is characterized in that it is configured to be serially numbered and to transmit information by associating inputs and outputs of the input circuit and output circuit with the same serial number.

[Embodiments of the invention]

Examples of the present invention will be described below. Input information is 4 points (A, B, H, D) and 7 points (H, H, T, CH, R, N, L) at point A and B, and output information is A and B at point C, and point D. Niha, E point has ni, ho, hetoto, F point has chi, ri and nu, and G point has ru. In other words, an example will be shown in which information is sent from two points (A, B) to five points (C to G) and 11 points (from A to L).

FIGS. 1 and 2 show a conventional configuration. FIG. 1 shows a case where the number of input/output points per unit is one, and FIG. 2 shows a case where there are four points. In either case, there is a one-to-one correspondence between the input unit and the output unit. When the number of inputs and outputs shown in FIG. 1 is one, two units are required for the number of transmission signals (in this example, 11 points from A to R). On the other hand, when the number of input/output points is four as shown in FIG. 2, 12 units are required in this example, although this varies depending on the number of points and the configuration of input/output. An increase in the number of units not only increases the unit price but also increases the total cost including wiring man-hours.

FIG. 3 is a block diagram of one embodiment of the present invention. An input unit 1 and an output unit 2 are connected by 9 transmission lines, and information is transmitted from the input unit to the output unit. Both the input unit and the output unit have a control section of 3, a transmission circuit of 6,
It is composed of 7 or 8 input/output circuits, and the control section is equipped with 5 address setting switches and 4 usage number setting switches.

At the start of the system, addresses and the number of used input/outputs are transmitted between each unit, and the input/output correspondence is determined as follows. First, for inputs, numbers are assigned sequentially by the number of used inputs starting from the address with the smallest address.Similarly, for outputs, numbers are assigned sequentially from the address with the smallest number by the number of outputs used, and inputs and outputs with the same sequential number correspond. It turns out. If this example is applied to the configuration explained in FIGS. 1 and 2, the fourth
Figure 5 shows the input/output correspondence table. As shown in FIG. 4, the same function can be obtained with a smaller number of units than in FIGS. 1 and 2.

〔Effect of the invention〕

According to the present invention, by making it possible to set the number of inputs and outputs actually used in the input/output unit,
It can be adapted to any system configuration, requires fewer units, has fewer models, and has fewer units, which has the effect of providing a system that is inexpensive in terms of equipment costs and connection man-hours.

[Brief explanation of the drawing]

FIG. 1 shows a configuration example of a conventional system, and FIG. 2 shows a configuration example of another conventional system. FIG. 3 is a block diagram of an embodiment of the present invention, FIG. 4 is a configuration example, and FIG. 5 is an input/output correspondence table. 1...Input unit, 2...Output unit, 3
...Control unit, 4...Used number setting switch, 5...
Address setting switch, 6...Transmission circuit, 7...
Input circuit, 8...output circuit, 9...transmission line.

Claims (1)

[Claims] 1 A system equipped with a plurality of input units and a plurality of output units with different numbers of inputs and outputs per unit in order to transmit information between at least two or more points; A multiplex signal transmission device in which each of the plurality of input units has an input circuit, an address setting switch, and a usage number setting switch; The circuit has a first bus that connects the circuit, the first control unit, and the first transmission circuit, and the address setting switch sets an address, and the number-of-use setting switch sets the number of input circuits to be used. Each of the plurality of output units includes an output circuit, a second control section having an address setting switch and a usage number setting switch, a second transmission circuit, the output circuit, a second control section, and a second transmission circuit. The address is set by the address setting switch, and the number of output circuits to be used is set by the number-of-use setting switch, and the input circuits of the plurality of input units are The output circuits of the plurality of output units are numbered sequentially by the number of used outputs starting from the smallest address, and the output circuits of the plurality of output units are numbered sequentially by the number of used outputs from the smallest address, and the input circuits and output circuits have equal serial numbers. A multiplex signal transmission device characterized in that it is configured to transmit information by matching outputs.