4、用于数据采集

随着PLC技术的发展，其数据存储区越来越大。如德维森公司的PLC，其数据存储区(DM区)可达到9999个字。这样庞大的数据存储区，可以存储大量数据。数据采集可以用计数器，累计记录采集到的脉冲数，并定时地转存到DM区中去。数据采集也可用A/D单元，当模拟量转换成数字量后，再定时地转存到DM区中去。PLC还可配置上小型打印机，定期把DM区的数据打出来。

PLC也可与计算机通讯，由计算机把DM区的数据读出，并由计算机再对这些数据作处理。这时，PLC即成为计算机的数据终端。

电力用户曾使用PLC，用以实时记录用户用电情况，以实现不同用电时间、不同计价的收费办法，鼓励用户在用电低谷时多用电，达到合理用电与节约用电的目的。

5、用于信号监控

PLC自检信号很多，内部器件也很多，多数使用者未充分发挥其作用。其实，完全可利用它进行PLC自身工作的监控，或对控制对象进行监控。对一个复杂的控制系统，特别是自动控制系统，监控以至进一步能自诊断是非常必要的，它可减少系统的故障，出了故障也好查找，可提高累计平均无故障运行时间，降低故障修复时间，提高系统的可靠性。

6、用于联网、通讯

PLC联网、通讯能力很强，不断有新的联网的结构推出。

PLC可与个人计算机相连接进行通讯，可用计算机参与编程及对PLC进行控制的管理，使PLC用起来更方便。

本公司主要优势产品：

【..美国..英维思 Invensys FOXBORO

 Ingersoll Rand D.C. Servo Drive, # 93972693, D.C. Motor Systems, WARRANTY
 Toei Electric Axis Controller, VFC01, USED, WARRANTY
 Estic Master Control Unit, ENRZ-MU40A, Mfg'd: 2005, 24VDC, Used, WARRANTY
 Westinghouse 5 HP AC Industrial Motor, 680B765G45, 1755 RPM, Used,  WARRANTY
 Fanuc Velocity Control Unit, # A06B-6047-H002, w/ A20B-0009-0320/07C, Used
 Texas Instruments Power Supply, PM 550-210, Used, WARRANTY
 Clausing Storm 80 CNC Turning Center Relay PC Board, A826-1953A, pcb274, Used
 Fanuc 7.5 Transformer, A80L-0026-0035, Used on RJ3iB Controller, Used   
 Fuji Electric FVR-G5 Variable Frequency Drive, FVR-004G5B, Used, WARRANTY
 Fanuc Servo Amplifier Unit, A06B-6089-H105, Series D, Used, WARRANTY
 Fanuc PC Board, # A16B-2200-091, Used,  WARRANTY
 Fanuc AXES Control PC Board, A16B-1211-0272/ 03B, Used,  WARRANTY
 Mitsubishi Mazak Mazatrol TRA-15A Unit, BN624B055D, Mazak VQC20/40, Used
 Reliance Electric Automate Register Input, 45C380, Used, WARRANTY
 Banner Mini-Screen Light Curtain, MSR164Y, USED, WARRANTY
 Seiki PC Board, IO-48A, 21-03-00-00, Used, Warranty
 Mazak / Mitsubishi T32-6 CNC Numerical Control System Rack, FCA330HLY-1, MC031D
 Boston Digital Control Panel Board, # PCB 11D521, Revision E, Used,  WARRANTY
 GE Fanuc FS16 9" MDI Unit, A02B-0120-C122/MA, A02B-0120-C122 / MA, WARRANTY
 GE Fanuc Model# O, AC Servo Motor # A06B-0513-B001, Used,  WARRANTY
 Mitsubishi FCA330HW Rack w/ Backplane BN634E212G53, W/ BN624B816G51A, Used
 NEW OLD STOCK Omron Interace Module, CJ1W-B7A04, NIB, WARRANTY
 Matsuura MC760V-DC Control Panel, EN4-00486A, Used, WARRANTY
 Mitsubishi Circuit Board FX 31D, FX31D, BN624A550G52, REV A, Used, WARRANTY
 AEG Modicon Controller, AS-884A-100, USED, WARRANTY
 Fanuc A16B-1210-0322 / 05A, DI/DO 3 Board, Used, Warranty
 G E 1/3 HP Adjustable Speed Motor w/ Right Angle Gearbox & Controller, WARRANTY
 Tempustech Master Board Chassis Unit, # 00016- , Used, WARRANTY 
 Zeiss Coordinate Measuring Machine Board, # 608093-9106, 1073.351, WARRANTY
 Danaher H4501 Series DC Motor Control, USED, WARRANTY
 Ziatech, ZT 88CT73, Industrial I/O Board, Rev. 0.1,  Used, Warranty
 Fanuc PC Daughter Board Module, # A20B-2901-0766 / 02A, Used, WARRANTY
 Yaskawa CPCR-MR 082GC, Board Only, Used,  WARRANTY
 AEG Modicon / Gould Power Supply Module, P421-431, Used, WARRANTY
 Uson 486 CPU Card, # 486A300D, Used, WARRANTY
 Monarch-Cortland I/O Indexer Board, E61157, Used, WARRANTY
 Mitsubishi AC Servo Motor, # HA100C w/ Encoder, Mazak Slant Turn 35-ATC M/C Used
 XYCOM High-Performance Analog Input Module, XVME-566, P/N 70566-001, Used
 Etamic PC Circuit Board, # E430714-2/4, WARRANTY
 Yaskawa ServoPACk Unit, # CPCR-MR154K, CPCR-MR-CA-154KB, "AS IS"
 NEW Omron Photoelectric Switch, # E3A2-DS70M4T, WARRANTY
 Fanuc 2.5 KVA Transformer, # A80L-0001-0089 - 05, Used, WARRANTY
 Unico Controller / Control Module, L300-909, Used,  WARRANTY
 Unitrol Electronics Pressure Trans. Multiplexer Board, 9280TR-2, 9180-SPT, USED
 Hitachi # MACC-MATIC CNC Vertical Mill PC Board, Relay 68E3.140740, Used  
 Gould Modicon / Gettys PC Circuit Board, # 100-240, Used, WARRANTY
 14" Hitachi Color Display Monitor, CD1472D1M, for Mazak, Used,  WARRANTY
 NEW El Hagiwara Rom Ram Memory PC Circuit Board, # C-8335-1110D,  WARRANTY
 NEW Chromalox Immersion Heater, 32", 480V, 3 Ph, 4 kW, MTO-304 / MT0-304
 NEW CGI, Inc. Gear Reducer, 034PNX0030-XX-05720, 3:1,  WARRANTY
 NEW Watlow Screw Plug Immersion Heater, 40", 480V, 3 Ph, BHN740E5W-24