描述
在PLC系统结构不断发展的同时，PLC的编程语言也越来越丰富，功能也不断提高。除了大多数PLC使用的梯形图语言外，为了适应各种控制要求，出现了面向顺序控制的步进编程语言、面向过程控制的流程图语言、与计算机兼容的高级语言（BASIC、C语言等）等。多种编程语言的并存、互补与发展是PLC进步的一种趋势。
achi-Fujikoshi Servo Motor MFA450FSCBS Used
NEW! Dowty Torque Motor NIB! ~ w/6 Month Warranty
Moog Torque Motor for 62 Series Valve~Rebuilt~NR!
NEW! Omron Servo Motor R88M-M20020-B w/6 Month Warranty
Heidenhain Control # EXE600-5.V ~ 6 Month Warranty~Used
New Mitsubishi MR-J20MA-UL Servo Amplifier NIB
WTC Valve Controller, Model #wt01-t31a Used ~NR!~
Vickers Servo Amplifier Card EEA-PAM-571-A-14 Rebuilt
Vickers Amplifier Card EEA-PAM-119-A-10 NEW 6 Mo Warr
Vickers Amplifier Card EEA-PAM-126-A-30 Rebuilt
Bosch Amplifier Card 0 811 405 014 Rebuilt
Vickers KFDG4V32C20NZMU1H720 Proportional Valve NOS
Vickers EEA-PAM-513-A-32 Servo Amp Card NIB 6 Mo Warr
