| 摘要 |
PURPOSE:To ensure an accurate and simple-operation recovery process by securing the display of the operation state and at the same time deciding whether the subtraction process should be carried out or not with reference to the copy ticket according to the operation state. CONSTITUTION:When the power supply is recovered after the service interruption taken place at terminal unit TU under state 2 [(7)-(8)], the final process telegram is printed through copy ticket printer SR and also set to FF and FF1. At this moment, the operator confirms state 2 via nonvolatile operation state display element (reverse display unit) DSP and also refers to the final process telegram of the CPU given copy printing SR to give operation to subtraction SW to carry out the subtraction process through the CPU in case the totalization process is already performed. As a result, recovery subtraction request signal RCAD is informed to the CPU, and recovery subtraction end signal RCRD is answered back to TU by the CPU when the subtraction is over. Thus FF and FF1 are set, and then TU starts the next work. |
