1746-NT8 A-B 检测元件

ABB 3HNP00007-1
WESTINGHOUSE 1C31227G01
WESTINGHOUSE 1C31224G01
ABB 3HNP00007-1
WESTINGHOUSE 1C31224G01
WESTINGHOUSE 1C31227G01
A-B 1420-V2-ENT
FOXBORO FBM217
WESTINGHOUSE 5X00062G01
FOXBORO 9761-210
SIEMENS 6ES7313-5BG04-0AB0

分类: 标签:

Description

当启动该对象运行时,同时也启动该定时器。若该对象的运行程序在规定的时间结束工作,发出一个工作完成信号,使该定时器清零,说明这一对象的运行程序正常;否则,属运行不正常,发出报警信号或停机信号。监控程序的梯形图如图7所示。图7中定时器T1为检测元件

NI National Instruments VXI-DIO-28 183124D-01

HP ProLiant DL165 G5 Dual Opteron 1.8G Quad Core Server

NEW XEROX WorkCentre55 Network Controller Kit 498K03980

NEW XEROX WC 245/255 Network Controller Kit 498K09770