| 摘要 |
PURPOSE:To accelerate processing speed at any one of plural sales data processors. CONSTITUTION:Plural slave side ECR 2 are connected to a master side ECR 1, the master side ECR 1 is provided with a PLU sum-up memory to store the PLU data of all the merchandise to be handled at shops, and the slave side ECR 2 is provided with a PLU sum-up memory to store the PLU data, which are registered more frequently, among the PLU data in the PLU sum-up memory of the master side ECR 1. When a PLU number code is inputted by a bar code reader 4 of the slave side ECR 2, the PLU sum-up memory of the slave side ECR 2 is retrieved and when relevant PLU data are stored, the data are registered and updated. When no data are stored, however, the PLU sum-up memory of the master side ECR 1 is retrieved, and the data are registered and updated. At the time of the settlement of account, the PLU data of the PLU sum-up memory for each slave side ECR 2 are set as the frequently registered PLU data. |
