在低档PLC中，用Z80A做CPU较为普遍，Z80A用于PLC有如下长处： Z80（或Z80A）CPU及其配套的芯片廉价、普及、通用，用这套芯片制成的PC，给维修及推广普及带来方便。Z80有独立的输入/输出指令,而且指令格式较短，执行时间也较短，这样有利于扫描周期的缩短。Z80输入/输出指令格式较短，相应的输入/输出设备编码也较短，所以相应的译码硬件器较简单。由于Z80的信息是采用输入/输出映射方式，因而设计流程序时，对输入/输出与存储器寻址容易区别。
输入回路的设计
Asco 302272 Solenoid Valve 1/2 Pipe 10.1 Watts CSQ
Columbus Electric S2022H10AA Wall Thermostat 22 Amp in Open Box CSQ
Gage PTSPGGG3 Differential Pressure Transmitter 0-450 psig 12-42 VDC CSQ
Siemens 6SL3243-0BB30-1PA3 Sinamics Control Unit CU230P-2 DP MMC
Cooper Bussmann FRS-R-225 225 Amp Fuse 600 VAC, 300 VDC Lot of Three BIC5
Cooper Bussmann LPS-RK-300SP 300Amp Fuse 600 VAC, 300 VDC Lot of 3 BIC5
GE Fanuc IC697MDL653E FS Discrete Logic Input Module 24VDC CSQ
Bailey Controls STC2AE Cartridge w/ A3 Cable CSQ
GEC Alsthom Parvex Servo Motor LX440CLR7000-Z max 2100 6,99A Top Zustand
Mitsubishi FR-E520-0.2K Inverter 0.2kW, 2.8A 3 Phase CSQ
PR Electronics 4116S002 4116 Universal AC or DC Transmitter CSQ
Beckman Industrial Series 8000 Signal Conditioners NOS CSQ
Westlock Controls Beacon E9468-BY-GI Valve Monitor U8325B25V DRC
Allen Bradley 1756-CNB Series D ControlLogix Bridge Module BCK
Siemens 6ES7 322-1FL00-0AA0 32 Point digital output 120 VAC No Label MMC
Siemens 7MF4433-1DA10-1AC1-Z SITRANS P Transmitter 0.63-63 bar CSQ
GE General Electric 12IFC53B2A Time Overcurrent Relay in Open Box BCK
Siemens SMP-E129 CPU Board Rexroth R in Open Box CSQ
Foxboro P0916BX-0C RY0347 0491 Terminal Block FBM P0916BX0C P0916BX SAR
Foxboro P0916BT-0E P0916BT0E FBM211 0-20mA 16 Input Module P0916BT SAR
Turck BC10-P30SR-FDZ3X Proximity Switch BC10P30SRFDZ3X BCK
Allen Bradley 20D-STEG-B1 SPK Stegmann Encoder Board Option MMC
Allen Bradley YURAZ 70 and 50 Amp Breaker 12 inch MCC Bucket CSQ
RTSR GEC ALSTHOM RTSR/ PARVEX CONVERTISSEUR CA / CC USED
Cisco Rev E0* Cable Accessory Kit in Open Bag DEB
Woodward Rev. E NetCon 5000 Power Supply GPP
Mitsubishi FX-16EX-ES /UL Input Block Sink/Source Configurable Type CSQ
Foxboro IMT20-PA10 Magnetic Flow Transmitter I/A Series BCK
GEC Alsthom MDR 11K B4 3 Phase AC Motor Starter Controller
Honeywell BZLN-11-LH6 Micro Switch CSQ
Asco Red Hat EF8262G86 Valve 340 psi BCK
Allen Bradley 700-PH200A1 Ser. B AC Relay Relais CA Direct Drive CSQ
Foxboro 62H-4E-0J M/62H Controller 62H4E0J NIOB SAR
Parker L Solenoid Valve Volts 12Watts NOS CSQ
Fisher Wizard Controller (lots of wear) CSQ
Industrial Foot Pedal Switch With Guard CSQ
Penberthy C T E 3/8" Circulating Tank Eductor in Open Box CSQ
Cutler Hammer E125B Circuit Breaker 100AMP 3Pole CSQ
GEC Alsthom Parvex Wandler CMS
Allen Bradley 1492-IFM40F-2 LOT OF 4 Interface Module 40 Point CSQ
Mitsubishi AJ71QC24 Melsec Communication Module Serial in Open Box CSQ
Laurel Electronics L60000FR Multifunction Counter / Timer in Open Box DRC
Allen Bradley 505-B0D C Starter Reversing Open Size 1 27 A 3 Pole V CSQ
Siemens ACSD2 Board X2131 E4 30 66 201 CSQ
IDEC PS5R-E24 100W Power Suppy 24 VDC 4.2 A BCK
Allen Bradley 170023 Drive Board M Rev.09 3702 CSQ
Allen Bradley Rev.10 3006 CSQ
EMICC RE4/T Fuse Replacement for K81PEX250 250 Amp 3.6 KV in Box BCK
Honeywell G RTD Terminal Board clean CSQ
LEM LF 305-S/SP11 Current Transducer LF305-S 715164 CSQ
Mitsubishi A1SJ71QE71N3-T Ethernet I/F Unit 5VDC 0.53A CSQ
Giddings & Lewis R2 R2 PIC900 Analog Output CSQ
Turck Ni10-G18SK-RZ3X2 Proximity Switch Ni10G18SKRZ3X2 BCK
Foxboro P0400YC-0H FBM 02 Thermocouple Input GPP
Modicon Schneider PC-A Modicon CPU Processor CSQ
Asco PSFX8262C Red Hat Solenoid Valve NOS CSQ
Electron Machine E-Scan I/O CPLD B-12699 Door Interface Unit Repaired CSQ
Norgen Amplifier Module in Open Bag CSQ
GEC ALSTHOM DSH-S 0705 PARVEX *USED*
GE Harris Westronic WESDAC D20 202/V.23 Modem GPP
