| 摘要 |
PURPOSE:To start the next transaction at high speed without being affected by the number of received items at a slave device because of cancel generated from the slave device by providing a specified control means. CONSTITUTION:A transaction data storing means 1 stores plural transaction data by transactions. A designating means 2 designates the cancel of the transaction data under inputting at present. When the designating means 2 designates the cancel of the transaction data under inputting at present, a control means 3 transmits the correspondent transaction data to a collector corresponding to the cancel designation of the designating means 2 and stores the next transaction data in the transaction data storing means 1 as the other transaction data. Therefore, when cancel is generated from the slave device, a series of processings such as data transmission to a master device, waiting for reception from the master device, data transmission to a backup master device and waiting for reception from the backup master device are not repeated for items, and recovery processing time is shortened. |
