| 摘要 |
PURPOSE:To enable trouble to be immediately discriminated, by preparing a controlling means that makes an indicater indicate a prescribed error number when a failure at a data processing part is judged to exist. CONSTITUTION:A CPU16 is connected to an A-D converting circuit 26 through an address data bus 17 via an ROM18, an RAM19, a key board controller 20, an indicated good controller 21 and an I/O port 22, further via a printer driving circuit 23, a status switch 24 and an I/O port 25. Further according to an input signal to the key board 3, a program data from the ROM18 is read, this is scaled in an scaling part 29 according to a signal from an interrupt controller 27, and a weight data converted in the A-D converting circuit 26 is incorporated. And further it controls the controller 21 to permit two indicators 5, 6 placed in the sides of the front and the back to perform indication, and controls the printer driving circuit 23, thereby allowing printing to be done on a dot printer 7. |
