| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a digital control apparatus in which, even if a simulation signal is inputted to a control device subjected to updating during a field test, in an updated control device, arithmetic operation is not performed according to the simulation signal, and an output terminal is prevented from being affected, and a digital control system with the digital control apparatus. <P>SOLUTION: A digital control apparatus 20 comprises a transmission function unit 21, an input address memory unit 25, a control arithmetic unit 29, an output address memory unit 30, a last value memory unit 26, an output buffer unit 31 which receives and stores one of signals stored in the output address memory unit and the last value memory unit, and a switching permission unit 27 which switches a signal path by giving the last value memory unit a copy permission signal permitting the signal which is to be stored in the output address memory unit, to be stored in the last value memory unit and giving a switch 28 a switching permission signal setting a connection source of the output buffer unit either to the output address memory unit or to the last value memory unit, on the basis of an inputted mode. <P>COPYRIGHT: (C)2013,JPO&INPIT |
