描述
继电器控制逻辑依靠触点的机械动作实现控制,工作频率低,且机械触点还会出现抖动问题。而PLC是由程序指令控制半导体电路来实现控制,属于无触点控制,速度极快,且不会出现抖动。
WINSMITH 943MDNS15DLR132-B542 METRIC SPEED REDUCER 15:1
TRANE 2TEE3F62A1000A 5 TON MULTIPOSITION FAN COIL R22
MILLIPORE CORPORATION FTPF05441 DEGASSER 145862
DAYTON 1/2-2 HP EXHAUST VENTILATOR 551-875 RPM 146597
BLACK BOX TD202-R2 ETHERNET AND TOKEN RING BOOKS 156337
ECOLOGIX DRT60 3.5 TON AIR HANDLER 153384
PHOENIX PD6231 AEROCOOL EVAPORATIVE COOLER 230V 159012
WEG 03018EP3E286T 30 HP ELECTRIC MOTOR RPM:1755 153341
ASTERIA 9760959 59×59 CORNER WHIRLPOOL BATH 160798
RHEEM RAND-048DAZ 4 TON 13 SEER SS AIR CONDITIONER