5STP08F6500 ABB

If an input signal is received just after the I/O update phase of a scan cycle,the signal cannot take effect in this cycle and must wait until the next scan cycle to take effect.At this time,the response time is the longest,which is equal to The sum of input delay time,two scan cycle time and output delay time;when using direct output refresh,the longest response time is equal to the sum of input delay time,one scan cycle time,and output delay time

如果在一个扫描周期的I/O更新阶段刚过就收到一个输入信号，则该信号在本周期内不能起作用，必须等到下一个扫描周期才能起作用，这时响应时间最长，它等于输入延迟时间、二个扫描周期时间与输出延迟时间三者之和；在使用直接输出刷新时，最长响应时间等于输入延迟时间、一个扫描周期时间、输出延迟时间三者之和