| 摘要 |
PURPOSE:To permit the concentrated supervision of the operating conditions of many refrigerating showcases in a control center. CONSTITUTION:Data, necessary for the control of respective refrigerating showcases, are transmitted from a transmitting I/F, provided in the controllers 1 of respective refrigerating showcases in a shop, to a center device 2 through signal wires 3 to indicate them sequentially or print out them. Especially, the data of abnormality are stores in the center device 2 together with the date and time of the generation of the abnormality so that the data can be outputted later. By this method, the concentrated supervision of the operating conditions of respective refrigerating chowcases can be effected without patrol while the abnormal data can be realized again upon repairing to grip an abnormal place properly and surely. |
