描述
使用继电器电路或PLC的梯形图可以实现开关量的逻辑运算。图1—4的上面是PLC的梯形图，梯形图中某些编程元件(如输出继电器和辅助继电器)的线圈“通电”时，其常开触点闭合，常闭触点断开，称该编程元件为1状态。当它们的线圈“断电”时，其常开触点断开，常闭触点闭合，称该编程元件为0状态。
ULTRAFILTRATION TANGENTIAL FLOW FILTRATION SYSTEM
HONEYWELL 51305890 TC LLMUX2 32PTMUX TDC MODULE
WATSON MARLOW 704U/R HIGH FLOW PERISTALTIC PUMP
BRINKMANN KINEMATICA POLYTRON PT 1200 CL HOMOGENIZER
VACUUBRAND VACUUM PUMP SYSTEM MZ 2C VARIO PUMP VNC 1
MILLIPORE ZLXS6V03Y ELIX 3 ELIX3 MILLI-Q UV ULTRAVIOLET
NEW PARKER BD15JALNE15 SERVO VALVE
GALIL DMC-2120 MOTION CONTROLLER W/ ICM-2900 I/O MODULE
NEW FANUC A06B-0373-B075 AC SERVO MOTOR ALPHA A2/3000
VIRTIS VIRSONIC 100 CELL DISRUPTOR ULTRASONIC CONVERTOR
NEW LINCOLN MOTOR SF4P50TSC614 5OHP AC MOTOR 1780 RPM
HONEYWELL 51305406-100 UCIO PC BOARD UNIVERSAL I/O MOD
