| 摘要 |
<p>PURPOSE:To obtain an expensive, space-saved and highly functioned control system based upon a timer by adding a sub-CPU and a local memory to the system, reading out time data from a clocking mechanism, forming a power supply starting signal, and raising a power supply for the system at a set time. CONSTITUTION:The sub-CPU 12 previously writes time TMRD to raise the power supply in a data part of the local memory. Since power is supplied to the sub-CPU 12 and the local memory 13 by an auxiliary power supply part 142 even if a data processor is disconnected, the sub-CPU 12 reads out the time data of a real timer 18 and compares the read value with the value of the data TMRD. When both the values are equal, i.e. it arrives at the set time, a power supply starting signal (line 102) is raised through an I/O port of the sub-CPU 12. At that time, the power supply starting signal (line 102) drives a relay control part 143 in a power supply device 14 to close a relay 144 and supply AC input to a main power supply AC input to a main power supply part 141.</p> |
