| 摘要 |
PURPOSE:To simplify and facilitate the wiring and enable effective performance of data transmission between a temperature control unit and a thermometric unit by connecting the temperature control unit and the thermometric unit by a pair of cables for clock transmission and temperature-data transmission to make it possible to show temperature data on a display. CONSTITUTION:A temperature control unit 21 is given a function to convert data for display to serial data and output the serial data together with a clock signal. A thermometric unit 22 is given a function, when a clock signal is inputted, to convert serial data to parallel data and, when a clock signal is not inputted, to take the parallel data and show them on a display 34. It is made possible to perform serial transmission between the temperature control unit 21 and the thermometric unit 22. This constitution makes it possible to considerably decrease the data transmission lines in number and, in wiring them, to pass them through a hollow post in the showcase in a simple, easy manner. |
