中央处理器(CPU)由控制器、运算器和寄存器组成并集成在一个芯片内。CPU通过数据总线总线、地址总线、控制总线和电源总线与存储器、输入输出接口、编程器和电源相连接。小型PLC的CPU采用8位或16位微处理器或单片机，如8031、M68000等，这类芯片价格很低；中型PLC的CPU采用16位或32位微处理器或单片机，如8086、96系列单片机等，这类芯片主要特点是集成度高、运算速度快且可靠性高；而大型PLC则需采用高速位片式微处理器。CPU按照PLC内系统程序赋予的功能指挥PLC控制系统完成各项工作任务。
(4820) RKC PCB Control Board C4UP33Y2
Allen Bradley (AB) Q14 Sercos F/O Plastic Cable Assy., 0.13m Length,
FISHER MODEL 846 PRESSURE TRANSDUCER
Anaren 62.5 to 125 Mhz, 10 dB, 50 Ohm, SMA (F) Directional Coupler
Wiltron-Anritsu 6400-6N50 1 MHz to 2 GHz, 500MW, 6.5dB, Type N, SWR Attenuator
King Dick CSM219 19mm, Combination Spanner Wrench
Telonic TG-9050, DC to 250 MHz, 0 to 82.5 dB, BNC (F) Toggle Switch Attenuator
M/A-COM Omni-Spectra 8 to 18 GHz, SMA (F), 18 dB, Power Divider
Ergotron White Mouse Holder, !
Anaren 1F 2.0 to 4.0 GHz, 10dB, 50W, SMA (F), H Style Directional Coupler
Sick Optic Electronic Light Curtain AGSE S01 #51471
HP NK-292A (WR-51) to (WR-42) 18.0 to 22.0 GHz, Cover Flanges, Waveguide Adapter
ALLEN-BRADLEY 1746-A10 10 SLOT RACK
GF SIGNET 199.233.063 BALL VALVE
Arra (0 to 40 dB), 0.2 to 2 GHz, Variable Micrometer Attenuator
Rexroth VT-VRPA V0/RTS-2/2V #81720
Promeasure Corp Control Module 4032X8 #34425
Allen Bradley (AB) 1492-SP1B150 (Box of 2 pcs - 1 Lot) Miniature Circuit Breaker
HP/Agilent and 54750A and 83480A Quick Reference Manual
Jm Mercury Wetted Contact Relay
(8767) Versa Valve VIZ-3701-LOVB Lock-Out 3Wat 2 Pos 1" NPT
(C) LANTECH DC DRIVE CONTROL BOARD
(O1-14) 1 TEXTRON KX 110186 BOARD
Matsushita Electric Nut Runner DFT-201M1-S #30571
Weinschel DC to 18 GHz, 3 dB, 20 W, Type N (M-F) Fixed Coax Attenuator
Vickers Directional Control Valve DG5S80AMWB20S375 #74431
Rosemount 0185D305E1N0000N0355Tb Transmitter
(RR21-2) MECMAN SHOCK ABSORBER
Boonton 51085, 500 kHz to 18 GHz, -30 to +20 dBm, 500 mW, Power Sensor, No Accy
Boston Gear Gear Reducer F72625B5J #69120