| 摘要 |
PURPOSE:To perform the pattern relay control easily from the CPU with a simple constitution, by writing in the sequence operating and restoring the pattern relay in the ROM of trunk circuit and altering the pattern with the timing signal of CPU. CONSTITUTION:When the pattern relays S, P and Q are controlled in the trunk circuit TRK from CPU, ROM is written in for the sequence operating and restoring the relays S, P and Q. In addition, driving circuits D2, D3 and D4 controlled with th output of ROM are provided, allowing to alter the pattern with the timing signal from CPU. Thus, the pattern relay in the trunk circuit TRK can easily be controlled from CPU with a simple constitution. |
