AB电池1756-BA1AB电池1756-BA1
对于PLC和DCS之间的区别我们必须有个清晰的界定，别看它们同为控制工具，实际功能却大相径庭。所谓分散控制系统(DCS)是融计算机技术、控制技术、通信技术、CRT技术为一体，它主要是针对生产过程进行监视、控制、操作和管理的一种控制系统。而PLC叫可编程逻辑控制器。DCS和PLC用相似的地方，就是软件组态的基本配置，但是DCS更强大。例如数据库生成，历史数据生成，图形生成，报表生成和控制组态等。PLC控制的对象一般都比较简单，DCS则可以控制企业的全部设备，成为*枢纽。在生产控制的战场上它们一为将才，一为帅才，相互之间不存在谁控制谁。PLC可以给信号DCS，反过来DCS也可以给信号于PLC，两者互相配合，其主从关系主要取决于对设备的要求。
PLC的发展十分迅速，随之也从技术上带来了各种挑战，谈到如何突破现阶段PLC的发展瓶颈时，我们应该放宽眼界，思考如何实现一个国家层面的、通用的、共性的、全面的PLC平台?一个PLC通用平台，无论是作为信息化产品、控制技术产品还是两化融合的骨干产品，都应该被重点关注。平台包括研发/设计、制造、应用三部分，并给出通用PLC平台具体产品目标要求(系统硬件、软件)、功能要求(硬件、软件的通用性技术指标，性能的*性与可靠性指标)。
PANDUIT PSL-DCJB DATA COMMUNICATION MODULE *SET OF 50* NEW CONDITION IN PKG
RUSSELLSTOLL 8303 RECEPTACLE 30A 250/600VAC 3P 4W NEW CONDITION NO BOX
3M MNG18-6FBX CRIMP FORK TERMINAL 22-18 AWG *SET OF 100* NEW CONDITION IN BOX
MOTOROLA MICROSYSTEMS 84DW6202X01 32 I/O MODULE EXCELLENT USED CONDITION NO BOX
VALBIA DA63 PNEUMATIC ACTUATOR W/MARWIN 8833F SS BALL VALVE NEW CONDITION NO BOX
GOULD SHAWMUT 66003 COPPER POWER DISTRIBUTION BLOCK 600V NEW CONDITION IN BOX
JERGENS M16X2.0 SWIVEL HOIST RING 1900 KG (4,188 LBS) NEW CONDITION NO BOX
SINE A416-1P00 16 PIN RECEPTACLE KIT A4161P00 NEW CONDITION IN PKG
ELECTROCUBE RG1782-6 SURGE SUPPRESSOR *SET OF 2* RG17826 NEW CONDITION NO BOX
GRACO 160-261 OEM VALVE NUTS 160261 *SET OF 5* NEW CONDITION IN PKG
APPLETON EXGJH-28 FLEXIBLE COUPLING 3/4" NPT FEMALE NEW CONDITION NO BOX
WHITE RODGERS S-13605 RELAY MODULE S13605 NEW CONDITION NO BOX
MICRO SWITCH DT-2RV212-A7 ROLLER LEVER SNAP LIMIT SWITCH NEW CONDITION NO BOX
GLENN BENNETT FGE-0298-BVPRE FILTER CARTRIDGE *SET OF 4* NEW CONDITION IN BOX
SUPERIOR BM-131805-1 SS50 MOTOR PLANETARY GEAR DRIVE KIT NEW CONDITION NO BOX
SYLVANIA 5A10N HEAVY DUTY MUSHROOM HD PUSHBUTTON MOMENTARY NEW CONDITION NO BOX
JB WEBB 45245G CIRCUIT BOARD IVS33561 REFURBISHED USED CONDITION NO BOX
OMEGA 233-05 PANELMOUNT PRESSURE GAUGE 0-30 PSI 1/4" NPT NEW CONDITION IN BOX
GRACO 170-249 FACTORY REPLACEMENT CYLINDER PISTON 170249 NEW CONDITION IN PKG
BURNDY YA6C-6L COPPER CRIMP LUG 5/8" HOLE BLUE *SET OF 10* NEW CONDITION NO BOX
GRACO 171-863 FACTORY REPLACEMENT VALVE STEM HOUSING 171863 NEW CONDITION NO BOX
HYDRO-LINE AC-2-08 ROD COUPLER AC208 NEW CONDITION NO BOX
HONEYWELL T631-1020 FARM-O-STAT THERMOSTAT 70-140F NEW CONDITION NO BOX
PRICE PUMP 0118 SERVICE REPAIR KIT NEW CONDITION IN BOX
CANAAN ELECTRIC CSA-A-01S PLUG IN RELAY MODULE CSAA01S NEW CONDITION NO BOX
KINGSTON 112C SAFETY RELIEF VALVE 10 PSI 1/2" NPT NEW CONDITION NO BOX
GRACO 160-240 AIR VALVE PACKING 160240 *SET OF 24* NEW CONDITION IN PKG
CHEMETRON 214H123 W/ W103MPCX-3 RELAY CIRCUIT BOARD USED CONDITION NO BOX
APPLIED ROBOTICS 94500-B1024 REPLACEMENT CONTACT *SET OF 2* NEW CONDITION IN PKG
APPLIED ROBOTICS 94500-B1023 REPLACEMENT CONTACT *SET OF 2* NEW CONDITION IN PKG
APPLIED ROBOTICS 95503-X1005A DIAMOND PINS *SET OF 2* NEW CONDITION IN PKG
APPLIED ROBOTICS 95503-X1007A BUSHINGS *SET OF 3* NEW CONDITION IN PKG
GRACO 161-794 REPLACEMENT PISTON BEARINGS *SET OF 2* 161794 NEW CONDITION IN PKG
SAGINAW CONTROL 580836 MOTOR / CONVEYOR CONTROL UNIT NEW CONDITION NO BOX
DADCO L300X2.0 NITROGEN GAS SPRING L300X20 NEW CONDITION NO BOX
GRACO 204-465 OEM PUMP CAP 204465 NEW CONDITION IN PKG
GRACO C32028 OEM INSULATOR FOR HOT MELT HANDGUN NEW CONDITION NO BOX
GRACO 218-309 OEM REPLACEMENT BEARING 218309 NEW CONDITION NO BOX
GRACO 172-496 FACTORY VALVE INTAKE HOUSING 172496 NEW CONDITION NO BOX
GRACO 617-230 FACTORY REPLACEMENT GASKETS 617230 *SET OF 3* NEW CONDITION IN PKG
GRACO 202-233 FACTORY FLOW CONTROL VALVE 1/4" NPT 202233 NEW CONDITION NO BOX
GRACO 168-211 CONNECTING ROD NUT 168211 FOR BULLDOG MOTOR NEW CONDITION NO BOX
GRACO 220-130 OEM PUMP CONVERSION KIT 2:1 RATIO 220130 NEW CONDITION IN PKG
GRACO 161-793 OEM REPLACEMENT PISTON SEAL 161793 *SET OF 5* NEW CONDITION NO BOX
GRACO 208-937 LOW PRESSURE BALL VALVE 208937 NEW CONDITION IN PKG
GRACO 172-406 OEM CYLINDER CAPS *SET OF 2* 172406 NEW CONDITION IN PKG
GRACO 181-299 REPLACEMENT FLUID NOZZLE 1.20 181299 NEW CONDITION NO BOX
GRACO C03035 OEM DISC ADAPTER NEW CONDITION NO BOX
GRACO 161-795 FACTORY REPLACEMENT PISTON 161795 NEW CONDITION IN PKG
GRACO 166-048 FACTORY REPLACEMENT COUPLING 166048 NEW CONDITION NO BOX
GRACO 171-862 OEM DIAPHRAGM WASHERS 171862 *SET OF 4* NEW CONDITION IN PKG
GRACO 162-305 REPLACEMENT PACKING NUTS 162305 *SET OF 3* NEW CONDITION IN PKG
GRACO 166-377 STAINLESS STEEL GLANDS 166377 *SET OF 2* NEW CONDITION IN PKG
GRACO 164-920 TEFLON CUP SEALS 164920 *SET OF 10* NEW CONDITION IN PKG
GRACO 158-367 REPLACEMENT GROMMETS 158367 *SET OF 24* NEW CONDITION IN PKG
GRACO 178-086 FACTORY REPLACEMENT ROD GUIDE 178086 NEW CONDITION NO BOX
GRACO 159-100 OEM BALL VALVE RETAINERS 159100 *SET OF 12* NEW CONDITION IN PKG
GRACO 110031 REPLACEMENT VEE PACKING 110-031 *SET OF 24* NEW CONDITION IN PKG
GRACO 607-495 FACTORY REPLACEMENT WASHER 607495 *SET OF 10* NEW CONDITION IN PKG
GRACO 177-717 OEM REPLACEMENT SPRING RETAINER 177717 NEW CONDITION IN PKG
GRACO 168210 OEM SHOULDER NUT 168-210 NEW CONDITION NO BOX
STEARNS 1-055-742-07-QG SPRING SET DISC BRAKE NEW CONDITION NO BOX
SIMPSON JW96L PERCENTAGE METER 0-100 PANEL MOUNT USED CONDITION NO BOX
NICHOLSON N300WR THERMOSTATIC STEAM TRAP 5173430 1/2" NPT NEW CONDITION IN BOX
SYLVANIA KPMT-2 CONTACT OPERATING LINK BRACKET NEW CONDITION IN BOX
INGERSOLL RAND 908-P314-3 REPLACEMENT IMPACT ANVIL 3/4" NEW CONDITION NO BOX
CLARK CONTROLLER KPMT-2 CONTACT OPERATING LINK ASSEMBLY NEW CONDITION IN BOX
HYDRO-LINE AC-2-5 ROD COUPLER AC25 NEW CONDITION NO BOX
SEMTECH C0049046-G POWER HYBRID VOLTAGE REGULATOR ASSEMBLY NEW CONDITION NO BOX
HONEYWELL SP670A1001 PNEUMATIC SWITCHING RELAY SP670A-1001 NEW CONDITION IN PKG
ALLEN BRADLEY 40394-472-01 DOOR HARDWARE KIT NEW CONDITION IN PKG
ALLEN BRADLEY 40394-312-51 DOOR HARDWARE KIT FOR 1494V-1 NEW CONDITION IN PKG
GRACO 220585 REPAIR KIT FOR HIGH-FLO PUMP 220-585 NEW CONDITION IN PKG
GRACO 236827 REPAIR KIT FOR MODEL PRO 5500WB 236-827 NEW CONDITION IN PKG
GRACO 178098 SOLVENT CUP 178-098 NEW CONDITION IN PKG
GRACO 161639 VALVE SEAT 161-639 *SET OF 3* NEW CONDITION IN PKG
GRACO C02051 FLANGE NOZZLE 15 DEG ANGLE *SET OF 2* NEW CONDITION IN PKG
GRACO 102637 CAP SCREW 102-637 *SET OF 4* NEW CONDITION IN PKG
GRACO 172131 GASKET 172-131 *SET OF 4* NEW CONDITION IN PKG
GRACO C32253 VALVE STEM *SET OF 4* NEW CONDITION IN PKG
ALLEN BRADLEY 00D156 FACTORY REPLACEMENT COIL 250 VDC NEW CONDITION NO BOX
CUTLER HAMMER 1323-2 COIL 208/220 VAC 60 HZ 13232 NEW CONDITION NO BOX
SNAP-ON TOOLS 9TQ9 POINTER FOR TORQOMETER *SET OF 8* NEW CONDITION NO BOX
SICK 7-020-208 ARC SUPPRESSOR KIT 7020208 NEW CONDITION NO BOX
DEUTSCH MS3470L14-12P CONNECTOR RECEPTACLE MS3470L1412P NEW CONDITION IN PKG
DEUTSCH MS3470L-19S CONNECTOR RECEPTACLE 9534B MS3470L19S NEW CONDITION IN PKG
CLARK TB16-1 2 WIRE COIL TB161 NEW CONDITION NO BOX
FIKE TYPE GD 4" P4904020 GRAPHITE RUPTURE DISC NEW CONDITION IN BOX
DANIEL WOODHEAD 103000A01F150 15' PVC CORD FEMALE 3P 16/3 NEW CONDITION NO BOX
HONEYWELL MICRO SWITCH EXH-AR33 SNAP ACTION LIMIT SWITCH USED CONDITION NO BOX
HONEYWELL MICRO SWITCH EXH-AR3 SNAP ACTION LIMIT SWITCH USED CONDITION NO BOX
WIEDMULLER SAK4 CLIP-ON TERMINAL BLOCKS 4MM *SET OF 6* NEW CONDITION NO BOX
PRO LOGIC B381390 DECODED I/O UTILITY CARD REV 001 NEW CONDITION NO BOX
CAPP 33606 POLARIZED REFLEX SENSOR 15' LEAD NEW CONDITION NO BOX
SQUARE D 40552-262-50 200A GROUNDING LUG NEUTRAL ASSEMBLY NEW CONDITION NO BOX
REES 41150-000 ILLUMINATED RED PUSHBUTTON MOMENTARY 41150 NEW CONDITION IN BOX
WIEDMULLER WS16 FUSIBLE TERMINAL BLOCKS 6MM 250V *SET OF 8* NEW CONDITION NO BOX
KEW G220210D FACTORY REPLACEMENT LEVEL SWITCH NEW CONDITION NO BOX
NAMCO K-109C FACTORY REPLACEMENT COIL 110V 60 HZ K109C NEW CONDITION NO BOX
GOULD SHAWMUT A6D60R TIME DELAY FUSE 60A 600 VAC *SET OF 2* NEW CONDITION NO BOX
GOULD SHAWMUT AJT70 AMP TRAP FUSE 70A 600 VAC 500 VDC NEW CONDITION NO BOX
GORDOS ODC5Q-II INPUT/OUTPUT MODULE INPUT 4-8 VDC 3A NEW CONDITION NO BOX
GOULD SHAWMUT AJT40 TIME DELAY FUSE 40A 600V *SET OF 2* NEW CONDITION NO BOX
MERCOID CONTROL 9-8107SC-8T REPLACEMENT SWITCH 2W 240V NEW CONDITION IN BOX
GOULD SHAWMUT CRS100 TIME DELAY FUSE 100A 600V *SET OF 3* NEW CONDITION NO BOX
FABCO-AIR C-221-0 PANCAKE PNEUMATIC CYLINDER C2210 NEW CONDITION NO BOX
PHOENIX CONTACT 2911676 PLUGGABLE INPUT OPTO COUPLER ST-0E2 NEW CONDITION NO BOX
OIL-RITE SOLENOID VALVE B-1725-1 1/4" NPT 24VDC NEW CONDITION NO BOX
EDYNE 1026 RELAY MODULE *SET OF 3* NEW CONDITION IN PKG
ALLEN BRADLEY 0D156 FACTORY REPLACEMENT COIL 230-250VDC NEW CONDITION NO BOX
KIMWOOD S-14 CYLINDER REPAIR SERVICE KIT S14 NEW CONDITION IN PKG
KIMWOOD S-16 CYLINDER REPAIR SERVICE KIT S16 NEW CONDITION IN PKG
CUTLER HAMMER CHB350 BOLT-ON CIRCUIT BREAKER 50A 3P 240V USED CONDITION NO BOX
CUTLER HAMMER CHB330 BOLT-ON CIRCUIT BREAKER 30A 3P 240V USED CONDITION NO BOX
CUTLER HAMMER CHB320 BOLT-ON CIRC BREAKER 20A 3P 120/240V USED CONDITION NO BOX
EFECTOR E20718 SENSOR BRACKET ACCESSORY KIT NEW CONDITION IN BOX
CUTLER HAMMER CHB315 BOLT-ON CIRCUIT BREAKER 15A 3P 240V USED CONDITION NO BOX
SQUARE D QOB360 CIRCUIT BREAKER 60A 240V 3 POLE Q0B360 NEW CONDITION NO BOX
AMPHENOL 10-825812-01P 2 PIN CONNECTOR *SET OF 5* NEW CONDITION IN PKG
MEAD LTV-MH-B 4-WAY MUSHROOM HEAD PUSHBUTTON 1/8" NPT NEW CONDITION NO BOX
FESTO SMTO-4-PS-S-LED-24B PROXIMITY SWITCH *W/O MNTG NUTS* NEW CONDITION IN PKG
JAMESBURY EW2B LIMIT SWITCH 15A 125/250V WATERTIGHT NEW CONDITION NO BOX
BUSSMANN LP-CC-1-4/10 TIME DELAY FUSE 1-4/10A 600V SET OF 5 NEW CONDITION IN BOX
BUSSMANN SAMI-71 FUSE COVERS W/ INDICATOR 30A 600V SET OF 2 NEW CONDITION NO BOX
CORNELL DUBILIER 422 RELAY 24 VDC 5 PIN NEW CONDITION NO BOX
MINERTIA YASKAWA UGTMEM-O1LB4 MINI SERIES MOTOR UGTMEMO1LB4 NEW CONDITION NO BOX
DUMONT 6SN7GT ELECTRONIC TUBE NEW CONDITION IN BOX
GENERAL ELECTRIC 22D101G2A SOLENOID COIL 230/250 VDC NEW CONDITION NO BOX
WOODHEAD 89290 TURNLOK CORD GRIP CONNECTOR 30A 250V L6-30P NEW CONDITION NO BOX
BURNDY RK152-2 TERMINAL BLOCKS 30A 300V 10 CKT *SET OF 2* NEW CONDITION IN PKG
DUMONT 6W6GT ELECTRONIC TUBE NEW CONDITION IN BOX
SIEMENS W68101 GROUNDING FINGER KIT NEW CONDITION IN PKG
PARKER CV161P20V REPLACEMENT VALVE CARTRIDGE NEW CONDITION IN PKG
AIRPAX APL13-681-4 CIRCUIT BREAKER NEW CONDITION NO BOX
OPTO 22 G4OAC5 OUTPUT MODULE 120V 3A 5V LOGIC NEW CONDITION NO BOX
ALLEN BRADLEY 61-6374 PHOTOELECTRIC ACCESSORY ADAPTER KIT NEW CONDITION IN PKG
SCHNEIDER 170-XTS-001-00 TERMINAL STRIP 088676 NEW CONDITION IN PKG
OHMITE F55J5R0 THIN RESISTOR 55 WATTS 5.0 OHMS NEW CONDITION IN BOX
SQUARE D 9007MS10S000685 COMPACT LIMIT SWITCH 125/250V 3A NEW CONDITION IN BOX
SNAP ON 99LTQP REPLACEMENT POINTER FOR TORQOMETER NEW CONDITION IN PKG
SNAP ON ITQP TORQOMETER REPLACEMENT TORQUE MECHANISM NEW CONDITION IN PKG
OPTO 22 OAC15 I/O RELAY MODULE *SET OF 2* NEW CONDITION NO BOX
WILLSON R73 BELT MOUNTED RESPIRATOR FILTER *SET OF 15* NEW CONDITION NO BOX
ELECTRO SWITCH 31702A ROTARY SNAP SWITCH *DAMAGED* USED CONDITION NO BOX
