JP3126369B2 - Control terminal for multiple remote control systems. - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control terminal of a multiplex remote control system that receives a transmission signal that is time-division multiplex-transmitted from a central control device and controls the rotation of a motor. Things.

[Prior Art] FIG. 8 is shows a schematic configuration of a remote supervisory control system using the remote control terminal unit according to the present invention, the central controller 1, the switch S ₁ to S ₄ unique address is set , A control terminal 3 for controlling the loads L _{1 to} L ₄ , a wireless relay terminal 7, an external interface terminal 8, and a pattern setting terminal 9. The transmission signal Vs, which is connected by the line 4 and transmitted from the central control unit 1 to the signal line 4, includes a start pulse signal ST indicating a signal transmission start, as shown in FIG.
Mode data signal MD indicating signal mode, terminals 2, 3, 7 ~
Address data signal AD for transmitting 8-bit address data for calling the 9, control data signal CD for transmitting the control data for controlling the load L ₁ ~L _4, check sum data signal CS
And a multi-pole (± 24V) time-division multiplexed signal composed of a return waiting signal WT for setting a return period from the terminals 2, 3, 7 to 9, and data is transmitted by pulse width modulation. I have. Each of the terminals 2, 3, 7 to 9 takes in control data of the transmission signal Vs when the address data of the transmission signal Vs received via the signal line 4 and the own unique address data match, and transmits the data. Signal Vs return standby signal
The monitoring data signal is returned in synchronization with the WT as a current mode signal (a signal transmitted by short-circuiting the signal lines 4 via a suitable low impedance). The central control unit 1 also includes a dummy signal transmitting means for constantly transmitting a dummy transmission signal in which the mode data signal MD is set to the dummy mode, and any one of the monitoring terminal 2 or the wireless relay terminal 7 and the external interface terminal. 8. When an interrupt signal Vi as shown in FIG. 9 (b) returned from the pattern setting terminal 9 is received, the interrupt generating terminals 2, 7 to 9 are detected and the terminals 2, 7 to 9 are detected. And an interrupt processing means for accessing the 9 to return the monitoring data. The central control unit 1 also uses the monitoring data returned to the central control unit 1 from the monitoring terminal 2 or the wireless relay terminal 7, the external interface terminal 8, and the pattern setting terminal 9 as described above. And creates control data to be transmitted to the control terminal 3 for controlling the corresponding loads L _{1 to} L ₄ , and transmits the control data to the signal line 4.
Multiplex transmission to the control terminal 3 via the
And controls the L ₁ ~L _4. The wireless relay terminal 7 is a terminal that relays data of an optical wireless system including an optical wireless transmitter Y, an optical wireless receiver X, and a wireless signal line 4a, and an optical signal transmitted from the optical wireless transmitter Y. The optical wireless receiver X
And the received data is sent to the wireless signal line 4a.
, And transfers this data to the central control unit 1. The external interface terminal 8 is a terminal that performs data transmission with the external control device 8a, and the pattern setting terminal 9 sends pattern control data input from the data input unit 9a to the central control device 1. It is a terminal that transfers. A remote control relay for load control (a latching relay that can be turned on and off by a hand switch) 5 is controlled by the control output of the control terminal 3 disposed in the distribution board 6 or the relay control panel 6a. It is supposed to be.

[Problems to be Solved by the Invention] However, the above-mentioned control terminal device 3 mainly turns on and off the lighting load. The control terminal 3 capable of controlling the load has been used to obtain a command signal for driving the motor to rotate in the positive and negative directions and to stop the motor. However, the signal input terminal of the motor control circuit and the load of the control terminal are controlled. Since the relationship with the connection terminal was not clear, there was a problem that a connection error or the like occurred. In addition, there is a possibility that command signals in both positive and negative directions may be issued simultaneously due to erroneous switch operation on the monitoring terminal device 2 side, and there is a problem in safety.

Furthermore, it is not possible with a conventional control terminal to take in monitoring information on the final state of an electric shutter or a blind driven by an electric motor.

Further, since the address setting section of the control terminal is formed in the DIP switch, the configuration becomes complicated, the operation of setting the unique address is troublesome, and there is a risk of malfunction due to careless operation. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the invention according to claim 1 is to provide a multiplex remote control that can safely control the rotation of a motor and easily connect to a motor control circuit. An object of the present invention is to provide a control terminal for a control system.

It is another object of the present invention to monitor the state of the final operation of a device driven by an electric motor and to confirm the operation state on the operating side in addition to the object of the present invention. It is an object of the present invention to provide a control terminal for a multiplex remote control system.

Further, the object of the invention described in claim 3 is that, in addition to the object of the invention described in claim 1, it can be easily arranged in the distribution board, and the configuration is simple and the setting operation of the unique address can be easily performed. An object of the present invention is to provide an inexpensive control terminal for a multiple remote control system.

Means for Solving the Problems] The control terminal of the multiplex remote control system of the present invention transmits a transmission signal including data such as address data and control data transmitted from a central control device via a pair of signal lines. A signal processing circuit for receiving and processing a signal and an address setting unit for setting a unique address are housed in a terminal case, and the received address data is compared with the unique address to control the transmission data control data when the addresses match. A control terminal of a multiplex remote control system in which a signal processing circuit is formed so as to control a load by taking in, and a first to a third connection terminal in which switch means are respectively connected to a common terminal. The switch means is controlled to be turned on and off by an output signal from the signal processing circuit, so that the first to third connection terminals are connected to an external motor control circuit in a forward direction of the motor. A command signal for instructing the rotation of the motor, a command signal for instructing the rotation of the motor in the negative direction, a command signal for instructing the rotation, and a command signal for stopping the rotation of the motor. The operations of the respective switch means for instructing the rotation drive in the negative direction are linked with each other so that when one is on, the other is off.

A monitor circuit may be provided for capturing a monitoring signal of a final operating state of a device driven by the motor, and the monitoring information of the operating state captured by the monitoring circuit may be returned to the central control unit by a signal processing circuit. The address setting section is formed by EEPROM, the data can be set freely by optical wireless signal, the terminal case is formed to the common size of the distribution board, and the optical wireless signal transmission / reception on the front of the terminal case. An opening may be provided.

[Operation] The present invention is configured as described above, and includes first to third signals corresponding to a signal input terminal of a motor control circuit, a command signal for rotationally driving the motor, and a command signal for stopping the motor in advance. And the common terminal are connected to each other.

Therefore, it is not necessary to determine which load connection terminal corresponds to which of the signal input terminals of the motor control circuit, and the connection can be easily performed.

In addition, when the motor is commanded to drive the motor in the positive and negative directions at the same time by operating the switch of the monitoring terminal provided for driving and stopping the motor, one of the operations is effective. It does not cause malfunction of the electric motor, and is safe.

A monitor circuit is provided for capturing a monitoring signal of a final operating state of a device driven by the motor, and the monitoring information of the operating state captured by the monitor circuit is returned to the central control unit by a signal processing circuit, thereby being driven by the motor. It can also monitor the final operating state of the device.

In addition, the address setting section is formed by an EEPROM so that the data can be freely set by an optical wireless signal, the terminal case is formed to have a common size of a distribution board, and the transmission and reception of the optical wireless signal is performed on the front of the terminal case. The provision of the opening for use makes it possible to provide an inexpensive multiplex remote control system control terminal which can be easily arranged in the distribution board, has a simple structure, and can be easily operated to set a unique address. ing.

EXAMPLES The present invention will be described below with reference to examples.

FIG. 1 shows a circuit configuration of an embodiment. In this circuit configuration, a transmission processing unit 30 is connected to a signal line 4 to receive a transmission signal V _S from a central control unit 1 and transmit a return signal V _B. and processing a function to turn on or off the relay contact r ₁₁ ~r ₃₁ each performed a set of run Tsu quenching relay RY ₁ to Ry _3, the control of the reset based on the control data CD of the transmission signal Vs received, another relay contact of the latching relay RY ₁ ~RY ₃
a function to capture the status of r ₁₂ and r ₃₂ as operation monitoring information,
External device (in the case of the embodiment opens and closes the final state of the electric shutter) and a function of taking the operating state of the monitoring information, the control output terminal O ₀ latching relay RY ₁
Resetting the coil R, control outputs a set coil S to the terminal O _1, similarly controlled output terminal O in ₂ latching relay RY
The _second reset coil R, a set coil S to the control output terminal O _3, control outputs the reset coil R of latching relay RY ₃ to the terminal O _4, the control output terminal O ₅ and respectively connected to the set coil I have. These coils R, the other end of the S is connected to the power supply terminal V, so that the exciting current flowing when the control output terminal O ₀ ~ O ₅ is connected to one end becomes "L" . And connects the diode D ₁ is provided between the control output terminal O ₁ and O _4, when the exciting current flows through the set coil S of the latching relay RY ₁ control output terminal O ₁ becomes to "L", the so that the exciting current flows through the reset coil R of the latching relay RY _3. The terminal O _{6 is} also connected to the control output terminal O ₁ via the diode D _{2. When} the control output terminal O ₁ becomes “L”, the control of the latching relay RY ₁ is performed through the internal circuit of the transmission processing unit 30. It has to be set to "H" the output terminal O _5.

Relay contact r ₁ ~r ₃ of the latching relay RY ₁ to Ry ₃ may constitute a switching means for providing open drive command signal of the motor shutter when on and stop command signal, the closing drive command signal to the motor control circuit 40 which will be described later and a common terminal C for connecting the motor control circuit 40, the relay contact r ₁₁ for exiting opening drive command signals between the connection terminals a _1, also a common terminal C, the connection terminals a ₂ the relay contacts r ₂₁ for issuing a stop command signal while, and further the common terminal C, respectively relay contacts r ₃₁ for exiting closing drive command signals between the connection terminals a ₃ s connections.

Further, the other relay contacts r ₁₂ and r ₃₂ of the latching relays RY ₁ and RY ₃ are connected between the monitoring signal input terminals I ₀ and I _{2 of the} transmission processing unit 18 and the ground terminal G, respectively. Monitoring information of the opening operation and the closing operation of the shutter is provided to the transmission processing unit 30.

The Toranjishita Q ₁ to turn off the base current when the photocoupler PC ₁ is turned on is bypassed by photocoupler PC ₁ between the monitoring signal input terminals I ₃ and the ground terminal G is connected. When the external monitor signal input terminals B ₁ and B ₂ are short-circuited by the monitoring contact Sa linked to the final operation state of the electric shutter, the photocoupler PC ₁ is connected to the input of the power supply voltage of the power supply unit 31 and is turned on. Thus, a monitor circuit capable of providing the transmission processing unit 30 with monitoring information on the final operation of the electric shutter by turning off the monitoring contact Sa is configured.

As shown in FIG. 2, an internal circuit of the transmission processing unit 30 includes a signal processing circuit 10 and an address setting unit formed by an EEPROM.
11, an optical signal receiving unit 12 including a photodiode PD and transistors Q ₅ and Q ₆ , an optical signal transmitting unit 13 including a light emitting diode LD and a transistor Q ₄ , and a power supply circuit 14 including a zener diode ZD and a transistor Q ₂ When a return circuit 15 consisting of resistors R and the transistor Q _3, a reset circuit 16 and a drive circuit 17. The drive circuit 17 has an input terminal of 8 bits and an output terminal of 8 bits and corresponds to each bit. When the input terminal becomes "H", the corresponding output terminal becomes "L". It has become
Six output terminals are used in the embodiment.

Connect the signal processing circuit 10 is an 8-bit output OUT ₀ to OUT ₇ These output OUT ₀ to OUT ₇ provided with the input terminal of the drive circuit 17, a set of the latching relay RY ₁ to Ry _3, the reset A control signal is provided. Here the output terminal OUT ₅ corresponding to the terminal O ₆ is connected to the control output terminal O ₁ via the diode D _2.

The monitoring signal input terminals I ₀ , I ₂ , I ₃ correspond to the signal input terminals IN ₀ , IN ₂ , IN ₃ of the signal processing circuit 10.

Here, the transmission signal Vs transmitted via the signal line 4 is
Is rectified by the diode bridge DB _1, is input via the transistor Q ₀ to the signal input terminal SIG of the signal processing circuit 10, circuit power of each terminal circuit including a signal processing circuit 10, the rectified voltage of the transmission signal Vs Is supplied via a power supply circuit 14 for making the voltage constant. Further, the signal processing circuit 10 determines whether the unique address data set in the address setting section 11 matches the address data AD of the received transmission signal Vs, and the control data CD transmitted subsequently when the address matches.
Captures and controls the latching relay RY ₁ to Ry ₃ through the drive circuit 17, opening of the electric shutter, closing, and outputs a command signal to stop. Also, a return signal V which returns the monitoring information of the opening / closing operation and the monitoring information of the final operation of the electric shutter from the return circuit 15 to the central control device 1 as a current mode signal (a resistor R having a low resistance value is inserted between the signal lines 4). _B is transmitted to the signal line 4.

On the other hand, writing of data to the EEPROM constituting the address setting unit 11 is performed by the signal processing circuit 10, and the data to be written is obtained by performing signal processing on a signal received by the optical signal receiving unit 12. It is formed and predetermined data of predetermined bits is written. Here, the signal received by the optical signal receiving unit 12 is an optical wireless signal transmitted from a data setting unit (not shown), and a response signal such as a reception confirmation signal is transmitted from the optical signal transmitting unit 13 to the optical wireless signal. It is transmitted as a signal, and data can be reliably transmitted wirelessly to and from the data setting device.

FIGS. 3 to 6 show the structure of this embodiment. The terminal device case 20 is formed to have a common size of a distribution board, and the body 20a and the cover 20b are fixed to each other with fixing screws 28. It is configured. A signal processing circuit 10 composed of a microcomputer and an address setting unit 11 composed of an EEPROM
And photodiode PD for transmitting and receiving optical wireless signals
The light emitting diode LD is mounted on the printed circuit board 32a as the transmission processing unit 30, and the light emitting diode LDc for receiving and displaying is also mounted on the printed circuit board 32a. The printed circuit board 32a is connected to the latching relay RY _{1 by a} tape wire 28. ~
It is connected to the printed circuit board 32b that implement RY _3. The printed circuit boards 32a and 32b are fixedly housed in the terminal case 20 with fixing screws 33. Further, on the front surface of the terminal device case 20, that is, on the cover 20b, a light emitting diode LD,
A transmission / reception opening 21 corresponding to the photo diode PD and an opening 22 corresponding to the light emitting diode LDc for reception display are provided. The transmission / reception opening 21 for transmitting and receiving optical wireless signals cuts unnecessary infrared rays. A filter 34 is provided. On the surface of the cover 20b, a nameplate 27 formed of a light transmissive material or having a window hole corresponding to the openings 21 and 22 is attached.

Further, the one end of the terminal unit case 20, a power supply connection terminal 27 for connecting the drive input power of the signal line connection terminals 23 and the photocoupler PC ₁ is provided, the other end portion of the motor control circuit 40 Common terminal C to be connected, and connection terminals A _{1 to} A ₃ ,
External monitor signal input terminals B ₁ and B ₂ are provided, and each of these terminals includes a terminal plate 26a and a terminal screw 26b. A terminal cover 24 is fixed with fixing screws 25 to the terminals where the connection terminals A _{1 to} A ₃ , the common terminal C, and the monitor signal input terminals B ₁ and B ₂ are arranged.

On the other hand, the body 20a of the terminal case 20 has a mounting groove 2 in which a connecting plate or a DIN rail mounting adapter is mounted.
9 are provided.

Hereinafter, the operation of the embodiment will be described. Now, the terminal case 20 of the control terminal 3 of the present invention is formed to have a common size of the distribution board and is provided with the mounting groove 29, so that the connecting plate is fitted in the mounting groove 29 or the DIN rail is fitted. The mounting adapter is attached and can be easily installed in the distribution board.

The address setting unit 11 is formed of an EEPROM, and data to be written into the EEPROM includes, for example, 4-bit page data, 4-bit upper address data, 4-bit lower address data, 4-bit load number data, 8
Bit identification data, 4-bit reply data and 4-bit reply data, which can be written and read freely by the signal processing circuit 10 as needed. In other words, when the system is installed or when the load or switch layout is changed, if a unique address change, a terminal type change, a control method, a change in the monitoring method, etc. occur, predetermined data is set by the data setting device. When the optical wireless signal is set and transmitted, the optical wireless signal is received by the optical signal receiving unit 12 via the filter 34, and the data processed by the signal processing circuit 10 is processed by the address setting unit.
Written to 11 EEPROM. In this case, the EEPROM saves data even if a power failure occurs, so a backup power supply is not required, and data can be electrically rewritten.
Setting and changing of the unique address can be easily performed.
Also, since the filter 34 is provided in the transmitting / receiving opening 21,
Malfunction due to unnecessary infrared rays can be prevented.

FIG. 7 shows a multiplex remote control system of an electric shutter using the control terminal 3 of the present invention, in which the signal line 4 from the central control unit 1 is connected to the signal line connection terminal 23 of the terminal 3, the power connection terminal 27 for connecting the drive input power of the photocoupler PC ₁ is connected to secondary output of the power transformer T.

Also connected to the common terminal C of the terminal device 3, the connection terminals A ₁ to A ₃ common terminal c provided corresponding to the motor control circuit 40, a signal input terminal a ₁ ~a _3, also monitor signal input Terminals B ₁ and B
₂ is connected to signal output terminals b ₁ and b ₂ of the monitoring contact Sa composed of a lower limit switch for detecting complete closing of the electric shutter provided in the electric motor control circuit 40.

The motor control circuit 40 has a common terminal C on the terminal 3 side.
If, when between the connection terminals A ₁ is short-circuited, opened so that the drive command signal is given to rotate the electric motor for driving an electric shutter, for example, in the forward direction to open the electric shutter, also common When the terminal C and the connection terminal A ₃ are short-circuited, a closing drive command signal is given,
Rotate the motor in the negative direction to close the electric shutter, also the common terminal C, connected the between the terminals A ₂ is short-circuited, so that the stop command signal is given, the motor being driven Is stopped, and when the electric shutter is in the closing completed state, the monitoring contact Sa is turned off, and the control function of stopping the driving of the electric motor is provided.

An electric shutter operation monitoring terminal 2 is provided in correspondence with the control terminal 3 of the present invention. The monitoring terminal 2 includes an electric shutter opening operation switch S.
_11, a closing operation switch S _12, together with and a stop operation switches S _13, 2 to display the state of the electric shutter
And a color light-emitting display element LED _0.

Thus to transmit the control data for controlling the two-color light emitting display elements LED ₀ to monitoring terminal device 2 based on the monitoring information corresponding to the monitoring contacts Sa sent back from the central control unit 1 in the terminal device 3. The control data for the two-color monitor display device LED ₀ for example, a red light-emitting to indicate that the electric shutter is in the open state when in this case the monitoring contact Sa is open,
When the monitoring contact Sa is closed, control data for emitting green light is transmitted so as to indicate that the electric shutter is in the closed state.

Two-color light emitting display elements LED ₀ based on the monitoring terminal unit 2 the control data by controlling the lighting, displays the state of the electric shutter.

Well now, the opening operation switch S ₁₂ of the monitoring terminal device 2 is operated, based on the monitoring data from the central control unit 1, the monitoring terminal unit 2, the opening operation switch S ₁₂
The control data for setting the latching relay RY ₁ of the terminal 3 corresponding to the terminal 3 for one second and then resetting the latching relay RY ₁ is
To be transmitted.

A signal output terminal OUT ₁ of the signal processing circuit 10 based on the terminal device 3, the control data in the "H" 1 second, the drive circuit 17
The control output terminal O _{1 is set} to “L” through this, and an exciting current is applied to the set coil S of the latching relay RY ₁ for this one second to set the latching relay RY ₁ to operate, and the relay contacts r ₁₁ and r ₁₂ are set. When turned on, the opening drive command signal is supplied to the motor control circuit 40, and the opening processing monitoring information is taken into the signal processing circuit 10. Diode D in latching relay RY ₃ for providing a closing drive command signal at this time
Exciting current flows through the reset coil R through _1, also the input terminal of the drive circuit 17 corresponding to the control output terminal O ₅ through the diode D ₂ and to "L", the forced "H" control output terminal O ₅ to order, closing manipulation switch S ₁₃ is the latching relay RY ₃ also been transmitted control data for setting the latching relay RY ₃ is pressed at the same time from the central control unit 1 in the monitoring terminal unit 2 is not set operation. That is, it is possible to prevent a malfunction of the electric motor due to the simultaneous operation, and it is possible to prevent an accident due to the electric shutter being driven in an incorrect direction.

The opening operation monitoring information taken into the signal processing circuit 10 as described above is returned to the central controller 1, and the central controller 1 determines that the opening operation is performed normally.

If the set driving elapses 1-second signal processing circuit 10 returns the output terminal OUT ₁ to the original "L", followed by an output terminal OUT ₀ to 1 second "H". That is, the control output terminal O ₁ is returned to “H”,
When O _{0 is set} to “L”, an exciting current is applied to the reset coil R of the latching relay RY ₁ for one second to reset it, and the relay contacts r ₁₁ and r ₁₂ are turned off to be in a standby state.

On the other hand, when the opening drive command signal is given, the motor control circuit 40 continues the control operation of driving the motor in the direction to open the electric shutter until the stop command signal is given or the upper limit position is reached.

Referring now to stop operation switch S ₁₂ monitoring terminal device 2 during the opening operation is operated, sets the latching relay RY ₂ the central control unit 1 based on the monitoring data of the monitoring terminal device 2 to the terminal device 3 The control data to be operated is transmitted.

The terminal 3 uses a latching relay based on the control data.
RY ₂ similarly driven one second set of the above, then performs control to reset driving, giving a stop command signal to the motor control circuit 40 to stop the opening operation.

Also in the case of closing driving an electric shutter open state may be operating the closing operation switch S ₁₃ of the monitoring terminal device 2, the central control on the basis of the case above the opening and stop operation as well as monitoring data Latching relay RY ₃ from device 1
Is transmitted to the terminal device 3,
The latching relay RY ₃ set to drive one second on the basis of the terminal unit 3, the control data gives closing drive command signal to the motor control circuit 40 by then reset driving, closing an electric shutter by the motor control circuit 40 Drive the motor in the direction of

Well monitoring information closing operation is returned be incorporated into the signal processing circuit 10 by the relay contact r ₃₂ of the latching relay RY ₃ to the central control unit 1, the closing operation by the central control unit 1 is performed normally Is determined.

Now, the electric shutter is completely closed and the monitoring contact Sa
There is turned off, the photocoupler PC ₁ in the terminal device 3 is for turning on the transistor Q ₁ is turned off, so that the monitoring information indicating that the electric shutter is fully closed incorporated in the signal processing circuit 10. This monitoring information is stored in the central controller 1
The central control unit 1 sends the two-color light emitting display element LED ₀ to the monitoring terminal 2 based on the returned monitoring information.
To emit green light, indicating that the electric shutter is completely closed.

As described above, by using the control terminal 3 of the present invention, the electric shutter can be operated by the multiplex transmission remote control system.

Note Although the embodiment uses a power transformer T for driving the power supply of the photocoupler PC _1, becomes unnecessary in the case monitors the output of the monitor of the motor control circuit 40 side is a chromatic voltage output.

[Effect of the Invention] Since the invention according to claim 1 is configured as described above, it is made to correspond to a signal input terminal of the motor control circuit, a command signal for rotationally driving the motor, and a command signal for stopping the motor in advance. The first to third connection terminals and the common terminal can be connected in correspondence with each other, and it is determined which load connection terminal corresponds to which of the signal input terminals of the motor control circuit. Eliminates the need for easy connection,
Also, even if the motor is commanded to drive the motor in the positive and negative directions simultaneously by operating the switch on the monitoring terminal provided for driving and stopping the motor, one of the operations will be effective. The motor does not malfunction due to
It has the effect of being secure. According to the second aspect of the present invention, a monitor circuit is provided for capturing a final operating state signal of a device driven by the motor, and the operating state information captured by the monitor circuit is returned to the central controller by a signal processing circuit. There is also an effect that the final operation state of the device driven by the device can be monitored. In the invention according to claim 3, the address setting section is formed by an EEPROM, the data of which can be freely set by an optical wireless signal, and the terminal case is formed to have a common size of a distribution board. By providing the optical wireless signal transmission / reception opening, it is possible to provide an inexpensive remote control terminal that can be easily arranged in a distribution board, and that has a simple configuration and allows easy setting operation of a unique address. This has the effect.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a circuit diagram of a main part of the embodiment, FIG. 3 is an exploded perspective view of the embodiment, and FIG.
FIG. 4 (b) is a front view of the above, FIG.
FIG. 6, FIG. 6 is a sectional view of a main part of the above, FIG. 7 is a system diagram for explaining the operation of the above, FIG. 8 is a schematic configuration diagram of a remote monitoring control system, and FIG. . 1 is a central control unit, 2 and 3 are terminals, 4 is a signal line, 10 is a signal processing circuit, 11 is an address setting unit, 20 is a terminal case,
21 receiving opening, 30 the transmission processing unit, 40 motor control circuit, A ₁ to A ₃ is a connection terminal, C is a common terminal.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04Q 9/00-9/16 H02P 1/00-1/58

Claims (3)

(57) [Claims] 1. A signal processing circuit for receiving a transmission signal including data such as address data and control data transmitted from a central control unit via a pair of signal lines and processing the signal, and an address setting for setting a unique address. Remote control system in which a signal processing circuit is formed so as to control a load by comparing received address data with a unique address, taking in control data of a transmission signal when an address matches, and storing the data in a terminal case. Control terminal device, comprising first to third connection terminals respectively connected to a common terminal with switch means, and controlling the switch means to be turned on and off by an output signal from the signal processing circuit. By the first
A command signal for commanding the motor to rotate in the forward direction, a command signal for commanding a rotation drive in the negative direction, and a command signal for stopping the rotation drive are provided to the external motor control circuit from the third connection terminal. A control terminal for a multiplex remote control system, characterized in that the operations of respective switch means for instructing the positive and negative rotations of the electric motor are linked with each other so that when one is on, the other is off. 2. A monitor circuit for taking in a monitor signal of a final operation state of a device driven by an electric motor, wherein the monitor information of the operation state taken in by the monitor circuit is returned to a central control unit by a signal processing circuit. The control terminal of the multiplex remote control system according to claim 1, wherein 3. An address setting section is formed by an EEPROM so that the data can be freely set by an optical wireless signal, and the terminal case is formed to have a common size of a distribution board. The control terminal of the multiplex remote control system according to claim 1, further comprising an aperture for transmitting and receiving a wireless signal.