描述
T253当前值计数数器开始累积100ms的时钟脉冲的个数。当X0经t0后断开,而T253尚未计数到设定值K345,其计数的当前值保留。当X0再次接通,T253从保留的当前值开始继续累积,经过t1时间,当前值达到K345时,定时器的触点动作。累积的时间为t0+t1=0.1×345=34.5s。当复位输入X1接通时,定时器才复位,当前值变为0,触点也跟随复位。
HP/Agilent 34504B Switched-Shield Coax Mux
HP/Agilent 5335A-010-020-030 Universal Counter with opt
HP/Agilent 6033A-001 DC Power Supply 0-20V, 30A; 200W
HP/Agilent 3497A-001 Data Acquisition Control Mainframe
HP/Agilent 6034A DC Power Supply 0-60V, 10A
HP/Agilent 437B-002 Power Meter w/002
HP/Agilent 33322Z Programmable Step Attenuator, 0-18 GH
HP/Agilent 70902A IF Section 10Hz-300kHz
HP/Agilent 70902A-8ZE IF Section
HP/Agilent 66102A DC Power Module 20V, 7.5A
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HP/Agilent E1674A Sonet/SDH Transport OH Receiver