| 摘要 |
PROBLEM TO BE SOLVED: To obtain a centralized control device of showcases for restricting key operation of each showcase in a key lock state collectively on the centralized control device side without performing key lock setting operation for each showcase and positively and easily performing control of the showcases when managing and controlling a plurality of showcases collectively by the centralized control device. SOLUTION: In the centralized control device of the showcases in which the plurality of showcases each equipped with control devices 1a, 1b, 1c for controlling temperature setting and lighting by key operation is connected to the centralized control device, the key operation of all of the plurality of showcases is locked by output from the centralized control device. COPYRIGHT: (C)2010,JPO&INPIT
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