| 摘要 |
PURPOSE:To prevent process control from being performed erroneously by the third person who does not know a key code, by inputting the key code before the input of control data. CONSTITUTION:An operator inputs a key code from operator console 2. In this case, the inputted key code is defined as a key code which is determined between the persons concerned. Computer 3 compares this key code with contents of a key code decision linkage table. If contents of the comparison result are correct, computer 3 can transfer to the next processing. Next, the operator inputs control data from console 2. Computer 3 displays inputted data on display unit 1. After confirming displayed data on unit 1, the operator depresses a transmission switch. Computer 3 stores control data and starts a controlling program by this depression. |
