6SE6430-2UD31-8DA0
从开关量控制发展到顺序控制、运送处理，是从下往上的连续PID控制等多功能，PID在中断站中。
可用一台PC机为主站，多台同型PLC为从站。
也可一台PLC为主站，多台同型PLC为从站，构成PLC网络。这比用PC机作主站方便之处是：有用户编程时，不必知道通信协议，只要按说明书格式写就行。
PLC网格既可作为独立DCS，也可作为DCS的子系统。
PLC主要用于工业过程中的顺序控制，新型PLC也兼有闭环控制功能。
DCS：
分散控制系统DCS集4C（Communication，Computer， Control、CRT）技术于一身的监控技术。
从上到下的树状拓扑大系统，其中通信（Communication）是关键。
PID在中断站中，中断站联接计算机与现场仪器仪表与控制装置是树状拓扑和并行连续的链路结构，也有大量电缆从中继站并行到现场仪器仪表。
模拟信号，A/D—D/A、带微处理器的混合。
一台仪表一对线接到I/O，由控制站挂到局域网LAN。
DCS是控制（工程师站）、操作（操作员站）、现场仪表（现场测控站）的3级结构。用于大规模的连续过程控制，如石化等。
Alcatel P63E1 3AL79092AA for 1662 SMC etc
USSI N21260605 IN OUT Board Ansaldo
Seica circuit tester board PT-DMAST100-00 Refurbished
SAMSUNG SVDR Voyage Data Recorder part ROMU-3000A
Alcatel SERV 3DB02155AA
Wonderware InTouch Development 1000 Tag FS2000/9.0
HAAS BRUSH ROTARY CONTROL F Board 32-3051F 93-1135
IPC Alliance MX DCIC Card
IPC Alliance MX ALIC Card
GUTOR 640-4049A Rev 2 Controller Board 0P0360
Lot 2K Atmel ATA5743P3-TGQY ATA5743 UHF Receiver $1.25p
NORTEL NTHW08CA Mss 15000 Control Processor (cp3) Modul
ALFA LAVAL Decanter Core Controller 6121.1227-01
Nortel Multiservice Switch 15000 SHELF Spare
Cisco Unified Communications Manager CM6.1U4-K9-UPG=
SIMRAD MC50 Marine Computer 26056010
HP Agilent 5517D Laser Head C16 refurbished
CG171A-T003-05 Reflector Film UX188 etching mould USED
Lot 80 CY7C1414SV18-250BZC CY7C1414 Chips $29/each
Honeywell 24 Beam Light curtain Control FF-LS242806842
Agilent G3431-60531 FID EPC Manifold
PELCO Esprit ES31CBW24-2W-X IOP 24X High Res PAL
VUTEk 3360 Controller Board Assy AA90206 Rev B
Emerson Force PowerCore CPCI-6750/128S-400-L
KLOEHN FLUIDS_MP module 00672-05261/R 50301
AMAT 0242-28381 0200-02272 0200-02980 0200-02981
Alcatel 3AL97690AA LC-ESC board
lot 520 iKANOS Fusiv IKF68331-A1-PB1-C chips $4/each
lot of 2500 LINEAR LTC1430CS#TR Voltage Regulator chips
Cooper Cleco STMH for TMEM TME Controller Refurbished
MacGREGOR C000071 cabin display Crane Computer CCP XS
Thrane & Thrane Sailor TT-3606E Message Terminal
Agilent G1888-60704 G1888A Enhanced PM Kit
NORTEL NTHW18BB 6mPKTservSP function processor
BLUECOAT SG8000-1 PROXY SERVER WEB ACCELERATOR
SIEMENS SIVOLT-A-Drehstromsteller 40A 6SG2412-3CA00-Z
Endress+Hauser Turbimax CUS31-W4E
Nortel NTN063FM S18K DDM 900 Filter 190-CY127-F1V5
Repaired Marconi LB16BG Board PLT40 UNPORT TRANS 2.5GB
SAM ELECTRONICS HS06-TCU NG3028G201 Board
SAM ELECTRONICS HS10 Pulse Modulator NG3028G206 25KW
Alcatel SWL-B LHR R2.0 FEE License Certificate
ABB Motor M3AA200MLA 4/8 3GAA208207-BDC 220KG inbox
Cooper Cleco 67ES135D4 Netsetter Inline Fixed Spindle
Motorola STARLINE SG2000 Optical Node 415239-333-00
ECS CNC BASIC Controller 080H969 Spare part USED
Alcatel MD128W1 3DB02136AA
Shimadzu GC-14A GAS CHROMATOGRAPH USED SPL FID install
OKUMA Drive Board UCMB2+F A911-2821 E4809-770-144-A
ABB SPAD346C3 SPAD 346 C3 DIFFERENTIAL RELAY PROTECTION
Hypertherm HT2000 041677 129160 Chopper used Spare
Credence LT1101 Voltage Supply Board 671-4014-04 Spare
TE-W Thermal Infrared Camera 160*120 core protype
MAN B&W PMI SYSTEM Pressure Analyzer for 6S50MC-C
Welch Allyn 88042A Colposcope Factory Refurbished Spare
Refurbished ALSTOM STF-DL ANTENNA Ref: 23509 Rev. E
Putzmeister Concrete Axial Piston Pump 067370003
ICHINOSE S-7000 SQC-6 Positioner Control Panel
Intermec IF5UD12380400014 IF5 RFID Reader
PELCO SD4CBW-PG-E1-X Spectra IV Camera
BLUECOAT 8000-1 PROXY SERVER WEB ACCELERATOR 080-03103
Honeywell Pressure Instrument Druck DPI 701 installed
Motorola SGLF4136FA JCDMA Broadband XCVR 1X CARD
MKS Baratron 220DD Differential Capacitance Manometer
Alcatel-Lucent O-24120G-A 3FE51185AB 7342 ISAM FTTU MDU
Rivertrace Engineering SMART ODME SVC Exchange Computer
GUTOR 0C0075 and 0C0950
B&R APC620 System Unit 5PC600.SX02-01 USED SPARE
Simrad GC80/85 Compact Control Unit I-type 27101690
Honeywell 51405043-175 Digital Output 24v module