Abstract: Provided are a communication system that is capable of acquiring information having a relatively large data amount by a transmission unit while securing a communication speed of a transmission signal of transmission unit, and a transmission unit employed in communication system. Transmission unit transmits superimposition requesting data from a superimposition requesting unit to a second monitoring terminal in a transmission segment of transmission signal. Second monitoring terminal, upon receiving superimposition requesting data and with responding thereto, transmits, to transmission unit, monitoring data corresponding to a monitoring input from a sensor device with a superimposition signal superimposed on transmission signal as superimposition response data in a reply segment of transmission signal.

Abstract: Transmission and reception of data can be performed between first terminal communicating by transmission signal and second terminal communicating by superimposition signal superimposed on transmission signal. When detecting interrupt signal generated by first monitoring terminal, in interrupt segment of transmission signal, transmission unit makes response requesting unit transmit response requesting data to first monitoring terminal in transmission segment. Response receiving unit receives response data that is transmitted in reply segment, in response to response requesting data, by first monitoring terminal that has generated interrupt signal. Segment securing unit transmits, in transmission segment, securing data for securing reply segment for superimposition of superimposition signal, by prohibiting transmission of response data in reply segment, with specific response data as trigger.

Abstract: Provided are a communication system that is capable of acquiring information having a relatively large data amount by a transmission unit while securing a communication speed of a transmission signal of transmission unit, and a transmission unit employed in communication system. Transmission unit transmits superimposition requesting data from a superimposition requesting unit to a second monitoring terminal in a transmission segment of transmission signal. Second monitoring terminal, upon receiving superimposition requesting data and with responding thereto, transmits, to transmission unit, monitoring data corresponding to a monitoring input from a sensor device with a superimposition signal superimposed on transmission signal as superimposition response data in a reply segment of transmission signal.

Abstract: Transmission and reception of data can be performed between first terminal communicating by transmission signal and second terminal communicating by superimposition signal superimposed on transmission signal. When detecting interrupt signal generated by first monitoring terminal, in interrupt segment of transmission signal, transmission unit makes response requesting unit transmit response requesting data to first monitoring terminal in transmission segment. Response receiving unit receives response data that is transmitted in reply segment, in response to response requesting data, by first monitoring terminal that has generated interrupt signal. Segment securing unit transmits, in transmission segment, securing data for securing reply segment for superimposition of superimposition signal, by prohibiting transmission of response data in reply segment, with specific response data as trigger.

Abstract: A selector switch for a supervisory remote control system is provided. This control system comprises operation terminals such as switches and control terminals such as relays, and a signal line for connecting a signal transmission unit to the operation and control terminals. Each of the operation and control terminals has an individual address. The transmission unit provides a control signal to the signal line according to a time-division-multiplexing manner such that when one of the operation terminals is operated, a load connected to the control terminal in an address correspondence with the operation terminal can be controlled.

Abstract: A portable programming device is used in a supervisory remote control system comprising a signal transmission unit for supplying a signal according to a TDM (Time Division Multiplexing) manner, first and second terminals having individual addresses, and a signal line connecting therebetween. According to a set of relation data including an address correspondence between one of the second terminals and one of the first terminals and control data including control parameters of a load, the load connected to the one of the second terminals can be controlled according to a supervisory input provided to the one of the first terminals.

Abstract: A selector switch for a supervisory remote control system is provided. This control system comprises operation terminals such as switches and control terminals such as relays, and a signal line for connecting a signal transmission unit to the operation and control terminals. Each of the operation and control terminals has an individual address. The transmission unit provides a control signal to the signal line according to a time-division-multiplexing manner such that when one of the operation terminals is operated, a load connected to the control terminal in an address correspondence with the operation terminal can be controlled.

Abstract: In a remote monitoring and controlling system, a selector switch unit sets data for batch controlling and separately controlling operation of illumination loads and transmitting to the signal line a control request signal related to operation for the illumination loads based on the set data. A data memory stores therein set operation states of respective illumination loads and set dimming levels of respective illumination loads so that the operation states and the dimming levels are associated in correspondence therebetween. A control request signal containing the data stored in the data memory is transferred to a terminal unit. The terminal unit transmits a dimming-level instruction signal to its corresponding dimming terminal unit based on a control request signal of dimming level from the selector switch unit, and further transmits a display instruction signal of dimming level to the selector switch unit, thereby displaying a current dimming level.

Abstract: A control terminal 32 includes an individual address setting section 12 for setting a unique individual address, and a simultaneous control address setting section 13 for setting a simultaneous control address common to the plurality of control terminals 32. A simultaneous control address is commonly assigned to the control terminals 32 to be subjected to group control. When an UP switch Sb or a DOWN switch Sc of an operation terminal 31b for group dimming purpose is pushed, a transfer signal including the simultaneous control address is transmitted to a signal line Ls from a transfer controller 30. The respective control terminals 32 substantially simultaneously receive the transfer signal, thereby changing the intensity of illumination loads.