JPS6316101Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a contact signal device that handles contact signals generated by input signals to contacts.

A conventional device of this type is shown in FIG. In the figure, 1a to 1n are external input contacts, 2
3 is a signal transmission device, 3 is a signal transmission line, 4 is a signal receiver, 5a to 5n are reception signal relays, and 6a to 6n are reception signal contacts corresponding to the reception signal relays 5a to 5n. A signal processing device 7 receives and processes signals from the reception signal contacts 5a to 5n.

Next, the operation will be explained. External input contact 1a
The signals .about.1n become input signals to the signal transmission device 2, which converts the signals and multiplexes the signals through the signal transmission lines 3, which are composed of a small number of lines. Multiplexed external input contacts 1a-1
The signal of n is again converted into a parallel signal by the signal receiving device 4 and drives the relays 5a to 5n. This rele5
The reception signal contacts 6a to 6n from a to 5n are processed by the signal processing device 7 into various displays, alarm signals, etc. In addition, external input contacts 1a to 1n
It goes without saying that there is a one-to-one correspondence between the signals and the reception signal contacts 6a to 6n.

Here, connect any of the external input contacts 1a to 1n to a
When changing from a contact to a B contact or from a B contact to an A contact, the reception signal contacts 6a to 6n are also changed from a contact to a b contact and from a b contact to a contact in exactly the same way as above, and the contacts 1a to 1n. Reception signal contact 6a
.about.6n, respectively, and match them exactly the same, signal processing will be performed normally.

Since the conventional device is constructed as described above, it has had drawbacks such as the need to switch the contact on the receiving section side by changing the wiring by switching between the A contact and the B contact.

This invention was made in order to eliminate the above-mentioned drawbacks of the conventional apparatus, and its purpose is to provide a contact signal device that can set the contact switching on the receiving side without changing the wiring.

An embodiment of this invention will be described below with reference to FIG.

In Fig. 2, 1a to 1n are external input contacts, 2
is a signal transmission device, 3 is a signal transmission line, 4 is a signal reception device, and 80 to 89 are designations with decimal numbers 0 to 9.
A decimal switch, 9 is an A contact setting switch, 10 is a B contact setting switch, and 11 is a type signal generator that emits a type signal according to the type of contact. A contact setting signal indicating whether the external input contacts 1a to 1n are A contacts or B contacts, that is, a type signal, is sent to signal identification units 12a to 12n, which will be described later, in correspondence with a predetermined contact among the external input contacts 1a to 1n. is input. 12
is a signal identification device consisting of signal identification sections 12a to 12n corresponding to the respective external input contacts 1a to 1n.
In addition, the signal identification parts 12a to 12n are signal lines for setting.
It receives a type signal from the device 11 via the SL, identifies whether the corresponding external input contacts 1a to 1n are an A contact or a B contact, and depending on the identification result, an A contact operation unit (not shown) or One of the b-contact operation units is selected and configured to be ready for signals from external input contacts 1a to 1n.

Next, the operation will be explained. External input contact 1a
The reason why the signals .about.1n are transmitted to the signal receiving device 4 is by the same operation as in the conventional case. Here, when changing any of the external input contacts 1a to 1n from an A contact to a B contact, or from a B contact to an A contact, when processing that signal, each of the external input contacts 1a to 1n
It is necessary to determine whether 1n is an a contact or a b contact.

Here, a unique decimal number is pre-assigned to each of the external input contacts 1a to 1n, and in order to change the contact from a contact to b contact, first enter the pre-assigned number into the setting decimal number. The advance switches 80 to 89 are used to set the contact, and the b contact setting switch 10 is used to set the b contact.

To be more specific, for example, numbers are specified such as number 10 for external input contact 1a and number 20 for external input contact 1b, and for example, external input contact 1a is set as b contact. , create a number equivalent to 10 with the setting decimal switches 80 to 89, and then close the b contact setting switch 10, and the type signal generator 11 will tell you that address 10, that is, the external input contact 1a, is a b contact. A signal is emitted, the information is recognized by the signal identification section #12a,
The b contact operation section (not shown) of the signal identification section 12a is selected and enters the operation preparation state, and the external input contact 1
Prepare for the arrival of the contact signal from a. Then, an output signal corresponding to the contact signal is output to the signal processing section 7.

Incidentally, a constituting each signal identification section 12a to 12n
The contact operating portion and the b contact operating portion may be configured to operate mechanically or may be configured to operate electrically. In this embodiment, each contact operating section is constructed of, for example, a pulse circuit so as to operate electrically. It goes without saying that the B contact to the A contact can be similarly set by the A contact setting switch 9. As is clear from the above explanation, the identification unit 12a determines whether each of the external input contacts 1a to 1n is an A contact input or a B contact input by the above operation.
~12n.

Each of this information is transmitted to external input contacts 1a to 1n.
The received signal is processed by being transmitted to the signal processing device 7 together with the ON/OFF signal.

As described above, according to this invention, a setting device that sets the type of input contact, a type signal generator that generates a type signal according to the type, and a type signal generator that identifies the type signal and generates a contact signal according to the identification result. Since the contact signal device is constituted by the identification device in preparation for the arrival, changes and settings can be made simply by operating the setting device as appropriate, which has the effect of providing a system rich in diversity.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a conventional device, and FIG. 2 is a block diagram showing a contact signal device according to an embodiment of this invention. In the figure, 1a to 1n are external input contacts, 2 is a signal transmission device, 3 is a signal transmission line, and 80 to 89 are 10
forward switch, 9 is a contact setting switch, 10 is a b contact setting switch, 11 is a type signal generator, 12
is a signal identification device. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of claim for utility model registration] (1) Multiple input contacts that open and close in response to input and generate contact signals based on the open and closed states, and settings that set the type of the contact corresponding to these input contacts. A device, a type signal generator that generates a type signal according to the type of the contact in response to a predetermined input contact set by this setting device, and a type signal generator that identifies the type signal from this type signal generator and uses the result of the identification. A contact signal device comprising an identification device that generates an output signal according to the contact signal in preparation for the arrival of the contact signal. (2) The setting means includes a number designation switch that designates a predetermined unique number for each input contact, and a contact setting switch that sets the type of input contact designated by the number designation switch. A contact signal device according to claim 1, characterized in that the contact signal device comprises: (3) The contact signal device according to claim 1 or 2, wherein the plurality of input contacts are normally closed contacts or normally open contacts.