描述
PLC用编程器或计算机编程,编程语言是梯形图、功能块图、顺序功能表图和指令表等。集散系统自身或用计算机结构形成组态构成开发系统环境。特别提出的是与STD总线工控机的区别,无论从维修、安装和模件功能都很相似。PLC更适用于黑模式下运行,但在线运行时若要进行较大的程序修改,其能力略逊于STD工控机,但是从开关量控制而言,PLC的性能优于STD工控机。
PARKER PNEUMATICS PRESSURE OIL AIR HYDRAULIC CYLINDER
Parker Schrader Pressure Regulator Gauge 035600200
NIB PARKER PNEUMATIC PRESSURE REGULATOR 14R013FC 1/8″ F
PARKER FOR TOTAL CONTROL WHEN THE PRESSURE’S ON 20713
Parker Veriflow Air Pressure Regulator Valve HFR902W
Parker PS1-P1091 Pneumatic Pressure Switch Line Mounted
Carrier Parker Differential Pressure sensor
Lot of PARKER POLYFLEX HIGH PRESSURE FITTING Qty 4 NEW