必须等扫描到该触点时才会动作。为了消除二者之间由于运行方式不同而造成的差异，考虑到继电器控制装置各类触点的动作时间一般在 100ms 以上，而 PLC 扫描用户程序的时间一般均小于100ms，因此，PLC 采用了一种不同于一般微型计算机的运行方式—扫描技术。这样在对于 I/O 响应要求不高的场合，PLC 与继电器控制装置的处理结果上就没有什么区别了。
Baldor CB20003C-00 Main Board CB20003C00
Weightech Power Panel
Wyse S50 902114-01L Thin Client RoHS
Rosemount 444RL1U1A1E5 Temperature Transmitter
Caloritech CXC150P131 Heater 240V 1P 5000W QW0201
Omron C200H-PS211 Power Supply Unit C200HPS2111
OHMART VEGA GM16 NY05-310-0418 Control Board GM-16
Miller 230252 Power Supply Card
Miller MiniLite FL11-3/11FT Fall Limiter 11FT Self-Retr
WEG 00118ET3RS143T PH3 208-230/460V 1750 RPM
Wyse S10 902110-01L Thin Client RoHS
Wyse WT9440XL Winterm Modular Windows Terminal
Zurn ZR-6001AV AquaSense AVZR Series Urinal Sys 3.0 GpF
Janus Elevator Pana40 Plus 842 P40 MKII Detector Contro
Jokab Safety JSBR4 Safety Relay 3NO 1NC 115VAC
Mazda BAP5-79-EGX In Dash CD/MP3 Changer 6 Disc
Allen Bradley 160S-AA02NPS1 VFD Speed Drive
Applied Robotics 03PR-009-P-02VN-NP-S1014 Robot Adapter
Krauss Maffei AT100 Control Board AT-100
Krauss Maffei NT215 Transformer NT-215
