owing to the peculiarities of the plc ladder logic graphic, there may well be the possibilities of the invalidation in the electric chain lock on the circuit .
由于该系列plc解算梯形图流程的特殊性,容易引起控制电路中电气联锁环节的失效。
because the slc500's relay ladder logic is very long and complex, it increases the delay and weakens the real-time performance of information transmission.