描述
为了处理急需响应的输入信号，PLC有种种措施。不同的PLC措施也不完全相同，提高响应速度的效果也不同。一般的作法是采用输入中断，然后再输出即时刷新，即中断程序运行后，有关的输出点立即刷新，而不等到整个程序运行结束后再刷新。
One-day shipping available
E1R1 Fireye Infrared Auto-Check Flame Amplifier Module
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Fireye U.V. Flame Scanner UV1A3-B
Fireye Programmer Module EP160 0436-40 w/Manual
Fireye UV1A3 UV scanner, 1/2 NPT NEW IN BOX
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FIREYE 4-263-1 NSFP 42631
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FIREYE MEUVS4 NEW
FIREYE 4 314 1 UV BULB NEW BOXED
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