描述
在PLC的编程语言中，梯形图是最为广泛使用的语言，通过PLC的指令系统将梯形图变成PLC能接受程序，由编程器键入到PLC用户存储区去。而梯形图与继电器控制原理图十分相似，主要原因是PLC梯形图的发明大致上沿用户继电器控制电路的元件符号
STROMAG STROMATIC AEB 125.3 ZW-S DC CONTOLLER
PHARMACIA BIOTECH ULTROSPEC 2000 MODEL 80-2106-00
TEKTRONIX TDS 520 2 CHANNEL DIGITIZING 500MHz 500MS/s
BOC EDWARDS EXC 300M P NO D39615000 VACUUM CONTROLLER
YASKAWA AC SERVO MOTOR SGMT-14A2AX-TE1 WITH ENCODER
KROHN-HITE 3944 LP/HP/BP/BR MULTICHANNEL FILTER
HP 8643A 0.26MHz-2060MHz SYNTHESIZED SIGNAL GENERATOR
with opt 002 UNIT UNDER REPAIR AS PARTS
HP Agilent 8903B Audio Analyzer, 20 Hz – 100 kHz W/OPT
OLYMPUS CLV-U40 EVIS UNIVERSAL LIGHT SOURCE
PENTAX EC 3831L VIDEO COLONOSCOPE FLAXIBLE ENDSCOPE
MELLES GRIOT 17MDS002 NANOSTEP MOTOR CONTROLLER
MELLES GRIOT 17MDU002 NANOSTEP MOTOR CONTROLLER
HP 70004A DISPLAY FRAME&HP70311A CLOCK SOURCE OPT H08
HP / Agilent 70004A Spectrum Analyzer w/ 70311A Module
NEW!!! JETTER (CE) AC-SERVOMOTOR F1004F-0S101-7003-0
