| 摘要 |
PURPOSE:To alternatively execute a specified function at another device without executing the specified function in vain by preventing the specified function from being executed according to the instruction of an instructing means, and transmitting the execution instruction information of the specified function to the other data processor. CONSTITUTION:An input part 11 of a master side electronic cash register(ECR) is provided with a key KC to be operated when there are a lot of customers and registration is congested, and a date/time input key KD to be operated in the case of setting the schedule set date/time or the like in addition to various function keys and on the keyboard of the input part 11, a mode changeover switch MS is provided. When there are a lot of customers, registration is congested and the key KC is operated, the right of schedule execution is moved to a slave side ECR. In this case, when the function can not be executed even at the slave side ECR, the right of schedule execution is moved from this ECR to the other slave side ECR, and the ECR enabling the execution executes the schedule. |
