JPS5942770Y2 - Terminal for multiplex transmission system - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a terminal device for a multiplex transmission system in which an address is set using a chip at the end of installation work for each terminal device.

FIG. 1 shows an example of a terminal device formed in the same shape as an embedded wiring device, and is mounted on the upper surface of the device body 11 on the side of a push button protruding base 7 on which push buttons 6 for control operations are arranged. An insertion slit 1 is provided, and the tip of the contact spring 9 comes into contact with a contact spring 9 planted on a printed board 8 as shown in FIG. 2, for example. The address setting switch 3□3゜ consisting of the contact 10 is
They are arranged corresponding to each bit of address data.

The chip 4 has a comb-shaped hole portion 4a and a recessed portion 4 as shown in the figure.
b, and the off setting is performed by inserting the protruding part 4a between the contact spring 9 and the contact 10, and the protruding part 4a and the recessed part 4b of the chip are configured for each terminal device.
By changing the concave and convex state of the surface, each address can be set.

However, in such a conventional example, address setting can be performed simply by inserting the chip 4 into the insertion slit 1; If you forget it and do not set the address
As shown in FIG. 3, there was a risk that the plate 13 would be placed over the frame 12 around the terminal device body 11.

In such a case, the terminal will not work at all, so the chip 4
It is necessary to set the address by inserting the plate 13, but in this case there is a problem in that it takes time and effort to remove the plate 13 again, making the work cumbersome.

The present invention has been proposed in view of the above points, and it is possible to automatically display this if you forget to set the address, so that forgetting to set the address can be detected before the plate is installed. It is an object of the present invention to provide a terminal device for a multiplex transmission system which eliminates the need for complicated work such as removing a plate and setting an address.

The present invention will be explained in detail below with reference to embodiment figures.

FIG. 4 shows a block diagram of an embodiment of the present invention, in which each address setting switch 3□32... is connected to a signal processing circuit 16 which is operated by the output of a diode bridge 14 stabilized by a power supply circuit 15. When doing so, one setting confirmation switch 5 is arranged in parallel with these address setting switches 3□3゜..., and the signal processing circuit 16 is activated only when this setting confirmation switch 5 is operated. Each operation indicator light 17... is turned on, and when these operation indicator lights 12... are not lit, an indication that the address setting has been forgotten is made.

Here, the address setting switch 3□3□... and the setting confirmation switch 5 may be formed in parallel on the printed board 8 like the one shown in FIG. 2, but for example, as shown in FIG. It may also be configured by arranging microswitches in parallel, as shown in FIG.

On the other hand, for chip 4, address setting switch 3□3゜...
...The setting confirmation switch 5 in the array is always provided with a setting confirmation operation part 4c on the array side, so when the chip 4 is inserted into the insertion slit 1 of the device body 11 and address setting is performed, the setting is always confirmed. The actuator 18 of the confirmation switch 5 is pressed by the setting confirmation operation section 4c to confirm the address setting, and the address setting switch 3 □ corresponding to the recess 4b of the chip 4 is pressed.
The actuators 13 of 3□... are not operated,
These address setting switches 3□3° . . . are set to the off state.

Note that the setting confirmation switch 5 itself may be used as a power switch.

Since the present invention is configured as described above, it is possible to confirm whether or not the address has been set before installing the plate, so that it is possible to check whether the address has been set or not after installing the plate, and to try again when realizing that the address has been set after the plate is installed. This has the advantage of simplifying the installation work of the terminal without requiring the trouble of removing it and inserting the chip.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the conventional example, Fig. 2 is a perspective view of the main part of the address setting switch section of the same as above, Fig. 3 is a reduced perspective view of the same as above just before the plate is installed, and Fig. 4 is of the embodiment of the present invention. The block diagram, FIG. 5 is a perspective view showing the relationship between the address setting switch and the chip, and FIG. 6 is a sectional view of the main part showing the address setting state by the chip, 1 is an insertion slit, 3 □ 3233... is the address setting switch,
4 is a chip, and 5 is a setting confirmation switch.

Claims (1)

[Scope of utility model registration request] An address setting switch corresponding to each bit of the address data is arranged inside the insertion slit, and a chip formed corresponding to the address data to be set is inserted into the insertion slit and the address setting switch is turned on as appropriate. In a terminal device for a multiplex transmission system in which addresses are set by operation, a setting confirmation switch is arranged in parallel with the address setting switch, and a setting confirmation operation section formed on each chip allows insertion of the chip into a slit. A terminal device for a multiplex transmission system that is configured to operate this setting confirmation switch at times, and display a forgotten setting display when the setting confirmation switch is not operated.