490NAA27104
490NAA27104
490NAA27104
PLC的诊断功能包括硬件和软件的诊断。硬件诊断通过硬件的逻辑判断确定硬件的故障位置，软件诊断分内诊断和外诊断。通过软件对PLC内部的性能和功能进行诊断是内诊断，通过软件对PLC的CPU与外部输入输出等部件信息交换功能进行诊断是外诊断。
PLC的诊断功能的强弱，直接影响对操作和维护人员技术能力的要求，并影响平均维修时间。
(六)处理速度
PLC采用扫描方式工作。从实时性要求来看，处理速度应越快越好，如果信号持续时间小于扫描时间，则PLC将扫描不到该信号，造成信号数据的丢失。
处理速度与用户程序的长度、CPU处理速度、软件质量等有关。目前，PLC接点的响应快、速度高，每条二进制指令执行时间约0.2～0.4Ls，因此能适应控制要求高、相应要求快的应用需要。扫描周期（处理器扫描周期）应满足：小型PLC的扫描时间不大于0.5ms/K；大中型PLC的扫描时间不大于0.2ms/K。
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HP/Agilent 8722ES Network Analyzer,50MHz-40GHz
HP/Agilent 8720ES Vector Network Analyzer 50MHz-20GHz
E8241A PSG-L Series Performance Signal Generator, 20 G
HP/Agilent 83630A Synthesized Swept-Signal Generator
E4405B ESA-E Series Spectrum Analyzer, 9 kHz to 13.2 G
ENI 5100L-NMR 1.5-400MHz 100W Power Amplifier
HP/Agilent 8753D Network Analyzer, 30 kHz to 6 GHz
HP/Agilent 8563E Spectrum Analyzer, 30 Hz to 26.5 GHz
HP/Agilent 4194A Impedance/Gain-Phase Analyzer
5087-7281 Multiplier Amplifier Switch Splitter Assembly
HP/Agilent 8340A Synthesized Sweeper,10 MHz 26.5 GHz
HP/Agilent 8593E Spectrum Analyzer, 9 kHz to 22 GHz
HP/Agilent 8563A 9 kHz 22 GHz spectrum analyzer
HP/Agilent 8902A Measuring Receiver
HP/Agilent 85052B Standard Mechanical Calibration Kit
8560E Portable Spectrum Analyzer, 30 Hz to 2.9 GHz
HP/Agilent 8970B Noise Figure Meter, 10 MHz to 2047 MHz
HP/Agilent 8970B Noise Figure Meter, 10 MHz to 2047 MHz
HP/Agilent 85047A S-Parameter Test Set,300 kHz to 6 GHz
HP/Agilent 85047A S-Parameter Test Set,300 kHz to 6 GHz
HP/Agilent 5087-7277 TBR Mixer Brick 20 GHz
HP/Agilent 5087-7070 Yig Tuned Harmonic Mixer
HP/Agilent 5086-7884 YIG TUNED HARMONIC MIXER
HP/Agilent 5087-7031 Yig Tuned Harmonic Mixer
HP/Agilent 8648D Signal Generator,9 KHz - 4 GHz
HP/Agilent 5361B Pulse / CW Microwave Counter, 40 GHz
HP/Agilent 11793A Microwave Converter
HP/Agilent 8591C CABLE TV ANALYZER ,OPT 011 041 107 130
HP/Agilent 8648D Signal Generator,9 KHz - 4 GHz
E4422B ESG-A Series Analog RF Signal Generator, 4 GHz
E4422B ESG-A Series Analog RF Signal Generator, 4 GHz
HP/Agilent 85331-60033 Transfer Switch
HP/Agilent E5071-66571 source board
HP/Agilent 11848A Phase noise interface for the 3048A
HP/Agilent 5086-7620 Source Module Mixer
HP/Agilent 85134F Flexible Cable Set, 2.4 mm to 3.5 mm
HP/Agilent 5087-7034 Yig Tuned Harmonic Mixer
HP/Agilent E4403-60074 3GHZ RF Assy, opt 1D5
HP/Agilent E4403-60073 3GHZ RF Assy
HP/Agilent 5086-6981 YIG TUNED HARMONIC MIXER
HP/Agilent 5086-7472 SWITCH/DOUBLER, 40GHz
HP/Agilent 70590A OPT Z40 RF SECTION RANGE 26.5 - 40GHz
HP/Agilent 5086-7589 Switch, 40 GHz
Ando AQ8423B Optical Amplifier Analyzer
HP/Agilent 85332-60003 UTG Microwave Switch,0.045~40G
HP/Agilent 83492A Optical clock recovery module
HP/Agilent 8971C Noise Figure Test Set,10MHz to 26.5GHz
HP/Agilent 5087-7238 Reference Switch
HP/Agilent E5071-61015 TBR Module,carpenter RCV RF
HP/Agilent 08719-60009 YIG TUNED OSCILATOR
HP/Agilent 5087-7081 YIG TUNED OSCILATOR
HP/Agilent 4xE5250A Low-leakage Switch Main
HP/Agilent 4338B Milliohmmeter, 1 kHz
HP/Agilent 5086-7583 Low Band Microcircuit Assembly
5086-7465 TBR Microcircui
HP/Agilent 8720D/8722D Front Panel
HP/Agilent 85027B Directional Bridge, 10 MHz to 26.5 GH
HP/Agilent 85046A S-Parameter Test Set
HP/Agilent 85046A S-Parameter Test Set
HP/Agilent 85046A-P S-Parameter Test Set
HP/Agilent E4440-60170 LO synth/ sampling osc assembly
HP/Agilent E4400-60718 Assembly Board Sampler
HP/Agilent 5086-7515 YIG Oscillator 2.0 - 7.5GHz
HP/Agilent 33326-60006 ATTENUATOR 55 db 40 GHz
HP/Agilent 33326-60002 ATTENUATOR 90 db 40GHz
HP/Agilent 5086-7968 Dir Coupler
HP/Agilent 33326-60003 ATTENUATOR 90 db 50 GHz
HP/Agilent E4440-60201 Board Assembly Reference
HP/Agilent E4440-60195 Printed circuit assembly
HP/Agilent 70905A RF Section, 50 kHz to 22 GHz
HP/Agilent 5086-7803 SYTF for 8595E 8561E 8561A 8561EC
HP/Agilent 85134-60004 2.4mm to 3.5mm Flexible Cable
HP/Agilent E4440-60213 Board-Assembly 3RD CONV
HP/Agilent E4400-60659 Board Assembly - Output
HP/Agilent E4400-60505 OUTPUT BOARD
HP/Agilent E4423-60500 Midgen Ref Board
HP/Agilent 33327-60001 ATTENUATOR
Noise/Com UFX-BER 2191/5501 Precision CN Generator
HP/Symmetricom 58503A GPS Time and Frequency Receiver
HP/Agilent 33325-60004 60 dB Attenuator, DC ~ 50 GHz
HP/Agilent E4440-60114 2ND LO Assembly
Agilent Technologies 5087-7077 YIG TUNED OSCILATOR
HP/Agilent 84905-60001 50 dB Attenuator, DC ~ 50 GHz
HP/Agilent 85331-60035 Switch, Replace by 5086-7642
HP/Agilent 33325-60012 60 dB Attenuator, DC ~ 50 GHz
AVANTEK 0955-0277 YIG FILTER
AVANTEK 0955-0277 YIG FILTER
HP/Agilent 5086-7484 Bias Tee Assembly 50GHz
HP/Agilent 33325-60006 60 dB Attenuator, DC ~ 50GHz
Tektronix TDS620 500 MHz, 4(2+2) Ch, 2GS/s, Oscilloscop
HP/Agilent 70300A RF Tracking Generator,20Hz t-2.9GHz
HP/Agilent 33327-60002 Attenuator, 70B 3-Section
HP/Agilent ECP-E18A Wide Dynamic Range Power Sensor
HP/Agilent 5086-7749 DUAL MIXER
HP/Agilent 5086-7952 DUAL MIXER
HP/Agilent 5086-7821 DUAL MIXER
HP/Agilent 5086-7838 DUAL MIXER
HP/Agilent 33016C Microwave Switch, 0.1 - 20 GHz
General Microwave 08415-60057 Switch, 0.1 - 20 GHz
HP/Agilent 5087-7272 UTG Enhanced Tsunami Switch
E4438C Power Supply 0950-4031
HP/Agilent E4404-60030 LO amplifier, IF swit
HP/Agilent E4440-60217 Printed circuit assembly
FLUKE 5700A-3031 OHMS CAL ASSY
HP/Agilent E4440-60029 Printed circuit assembly
HP/Agilent 5087-7114 YIG TUNED OSCILATOR
HP/Agilent E8251-60044 PCA, Frac-N
HP/Agilent E4400-60513 Opt REF BD
HP/Agilent E8251-60043 Assembly Board Sampler
Panasonic VP-8450A Video Analyzer
Sony/Tektronix DG2020A Data Generator
HP/Agilent 35660A Dynamic Signal Analyzer
HP/Agilent E4440-60174 A22 PRE AMP ASSY
HP/Agilent E4440-60022 A27 ELECTRONIC ATTEN
HP/Agilent 85332-60004 UTG U-Wave switch,0.045-26GHz
HP/Agilent 84904L Programmable Step Attenuator
