为什么工控界更信任PLC，选择PLC作为工控的核心部件呢，主要是由于PLC的以下五个特点：
1. 可靠性高，抗干扰能力强
无触点控制：故障率少；
硬件措施：屏蔽、滤波、隔离；
软件措施：故障检测、信息保护和恢复、警戒时 钟（死循环报警）、程序检验
2. 使用灵活，通用性强
产品系列化，硬件结构模块式，可灵活选用；
软接线逻辑使得PLC能简单轻松的实现各种不同的控制任务，且系统设计周期短。
3. 编程方便，易于掌握
采用与继电器电路极为相似的梯形图语言，直观易懂， SFC 功能图，使编程更简单方便。
4. 接口简单，维护方便
可直接与现场强电设备相连接，接口电路模块化。
有完善的自诊断及监视功能，便于查出故障原因，并迅速处理。
5. 功能完善，性价比高
除逻辑控制，定时计数，数字运算外，配合特殊功能模块还可以实现点位控制， PID 运算，过程控制，数字控制等功能，还可与上位机通信，远程控制等
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CHESTERTON 4683 STATIONARY SEAL -5/45mm
CHESTERTON 4683 STATIONARY SEAL -5/45mm
CHESTERTON 53508 880 SEAL 2.000 SHAFT SIZE
CHESTERTON 54228 880 SEAL 2.000 SHAFT SZ TC/SS FACTORY REFURBISHED IN
CHESTERTON 627674-22 880 SEAL KIT 2.875 SHAFT SIZE
CHESTERTON 663986 SEAL ADAPTER ABS-20 REDUCER .375
CHESTERTON 8K SUPER PARACHUTE V-RINGS 0 RING SET 0.375 X .375
CHESTERTON 8K SUPER PARACHUTE V-RINGS 0 RING SET 0.375 X .375
CHESTERTON 8K SUPER PARACHUTE V-RINGS 0 RING SET 7.875 X 8.875
CHESTERTON 8K SUPER PARACHUTE V-RINGS 0 RING SET 9-/8 X0-/8"
CHESTERTON MODEL 000765 HYDRAULIC SEAL KIT NIB!!!
CHESTERTON MODEL 000765 HYDRAULIC SEAL KIT NIB!!!
CHESTERTON MODEL 006973 REPAIR/SERVICE SEAL KIT
CHESTERTON MODEL 006973 REPAIR/SERVICE SEAL KIT
CHICAGO 5346 CH-L LH THREAD VALVE ASSEMBLY (3)
CHICAGO MINIATURE 756 LAMP/BULBS PACKAGE OF 0 PCS.
CHICAGO MINIATURE CML028 YELLOW LENS LEDS 4V .08A (SET OF 2) NOS CONDITION
CHICAGO RAWHIDE 0755 OIL SEAL 0.750 SHAFT / 2.750 OD
CHICAGO RAWHIDE 2239 OIL SEALS (SET OF 2)
CHICAGO RAWHIDE 502 OIL SEAL -5/8 SHAFT / 3.000 OD
CHICAGO RAWHIDE 502 OIL SEAL -5/8 SHAFT / 3.000 OD
CHICAGO RAWHIDE 7854 OIL SEALS 20 X 26 X 4 (SET OF 2)
CHIYODA 3FAN3F-N3M FLEX PNEUMATIC FITTING
CIRCLE SEAL CONTROLS 2332R-4PP CHECK VALVE 0K PSI !
CIRCLE SEAL CONTROLS 2332R-4PP CHECK VALVE STAINLESS STEEL 0,000PSI
CIRCLE SEAL CONTROLS 2332R-4PP CHECK VALVE STAINLESS STEEL 0,000PSI
CIRCLE SEAL STAINLESS NEEDLE VALVE /8" NPT X /4" OD TUBE CONDITION
CIRCUIT POWER INC. MODEL 65 DC POWER SUPPLY 20VAC NOS CONDITION
CISCO AIR-PWRINJ2 SINGLE PORT ETHERNET POWER INJECTOR
CITCO CT04369 CARBIDE INSERT 89-589-068
CITO PRODUCTS ROTOFLOW 3 HIGH FLOW TURBINE METER P/N-RFH-66 " NPT
CKD 659D GAUGE 0- MPA BACK MOUNT CONDITION /
CKD MODEL AB3-2H SOLENOID VALVE COIL 24VDC
CKD MODEL M3WV PROXIMITY SWITCH 2/24VDC CONDITION
CKD MODEL S3W PHOTOELECTRIC SENSOR 2/24VDC CONDITION
CKD MODEL SRL2-00-40B-330-A RODLESS CYLINDER CONDITION /
CKD MODEL SRL2-G-LB-25B-600-A2 RODLESS CYLINDER CONDITION
CKD MODEL SRL2-G-LB-63B-500 RODLESS CYLINDER
CKD PART# A2-3803-20A-M-A PNEUMATIC VALVE
CKD PART# A2-3803-20A-M-A PNEUMATIC VALVE
CKD PART# FRB2V-0X299 PNEUMATIC ROTARY VALVE
CKD PART# G59D-8-P0P6 PRESSURE GAUGE 0- MPA (2)
CKD PART# KML50 2B-A-4 LIQUID LEVEL SENSOR
CKD PART# SSD-KL-25-80 PNEUMATIC COMPACT CYLINDER
CKD PART# SSD-KL-25-80 PNEUMATIC COMPACT CYLINDER
CKD PART# SW-M3WV PROXIMITY SWITCH 2-24 VDC (3)
CKD SCP02-030 MINI PNEUMATIC CYLINDER DOUBLE ACTING -/4 STROKE
CKD SSD-KL-25-25 PNEUMATIC CYLINDER W/SENSORS !!!
CLARK CONTROLLER KPMT-2 CONTACT OPERATING LINK ASSEMBLY
CLAROSTAT 73JA-20K PRECISION POTENTIOMETER 20K OHMS CONDITION
CLECO DRILL REPLACEMENT CLAMSHELL SET #380256-00 CONDITION
CLEVELAND CONTROLS DFS-22-52 AIR FLOW REGULATOR
CLEVELAND CONTROLS DFS-22-52 AIR FLOW REGULATOR
CLEVELAND MACHINE CONTROLS C90-0459-DM-250 ENCODER CONDITION /
CLIPPARD MINIMATIC R46 4-WAY VALVE
CLIPPARD MODEL MFC-2 FLOW CONTROL VALVE CONDITION IN PACKAGE
CLYDE BERGEMANN / LEESON 75953 GEAR REDUCER BRAKE ASSEMBLY CONDITION
CLYDE T-05A PNEUMATIC SOLENOID VALVE CONDITION
CM KEMP 33344 FILTER DRAIN ASSEMBLY 500 PSIG /4" NPT CONDITION /
CMP TC-350A268 3" TRAY CABLE CONNECTOR FOR HAZARDOUS LOCATIONS
CMP TC-400A35 4" TRAY CABLE CONNECTOR FOR HAZARDOUS LOCATIONS
CMP TC-400A35 4" TRAY CABLE CONNECTOR FOR HAZARDOUS LOCATIONS
COAST TO COAST A6 LM2749 LM27 TAPERED BEARING CONE-CUP *SET OF 5*
COATED " COUPLER CORROSION RESISTANT !!!
COATED " COUPLER CORROSION RESISTANT !!!
COAX 5-VMK-H5NCISO EMULSION SOLENOID VALVE /2" NPT CONDITION /
COAX MK02C40VPS8P3LXB SOLENOID VALVE 0-40 BAR CONDITION
COAX MK02C40VPS8P3LXB SOLENOID VALVE 0-40 BAR CONDITION
COAX MK202C26VPN3/4T2LXB SOLENOID VALVE 0-6 BAR
COAX MK252C26VPN/4T2LXB SOLENOID VALVE 0-6 BAR
COAX MK252C26VPN/4T2LXB SOLENOID VALVE 0-6 BAR
COAX MK252O26VPN/4T2LXB SOLENOID VALVE 0-6 BAR
COAX MK252O26VPN/4T2LXB SOLENOID VALVE 0-6 BAR
COAX MK52C26VPN/2T2LXB SOLENOID VALVE 0-6 BAR
COAX MK53C240VPS8T2LXB SOLENOID VALVE 0-40 BAR
COAX VMK253C200TTS2XXVBXXP CONTROL VALVE NC
COAX VMK253C200TTS2XXVBXXP CONTROL VALVE NC
COAX VMK53C200TTS2XXVBXXP CONTROL VALVE NC
COGNEX CKR-200-CBL-EXT, REV B, CHECKER 200 3G AND 4G I/O EXTENSION CABLE 5M
COGSDILL SHEFCUT CSS-03463 REAMER .875"DIAX2.96"OAL IN PACKAGE
COILHOSE PNEUMATICS 8800-53 REGULATOR REPAIR KIT [SET OF 2] IN PKG
COILHOSE PNEUMATICS 8800-54 REGULATOR REPAIR KIT [SET OF 2] IN PKG
COILHOSE PNEUMATICS 8842M LUBRICATOR W/ METAL BOWL /4"
COLLIS MODEL 73862 TOOLHOLDER
COLONIAL C7285 UNION /2" THREADED PVC VITON !!!
COMAU AUTOMATION W54-N-00 CLAMPING LOCATOR 36MM X 3MM X 2MM CONDITION
COMMUNICATIONS SUPPLY ELECTRIVERT CAS-ELV93-CAF-ST-40' CABLE ASSEMBLY
