6SE9621-7DD50
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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Mori Seiki 10.4" TFT Monitor, MSC-803, E77022A04, Date: 9807C,
Mori Seiki MSC-801 Controller Unit, Mfg'd: 1996, E03023,
Mori Seiki MSC-801 Controller Unit, Mfg'd: 1999, E00549A03,
Mori Seiki PC Panel Board, AB12C-4141 / AB12X-4141/001,
Morse Raider Plus Gear Reducer, 2.45 HP, 5:1 Ratio, # 175Q56H5,
Motorola Rack Card, MVME162-02, MVME-162-02,
Motorola Rack Card, MVME162-020A, MVME-162-020A,
MP Tool & Engineering Power Collet Chuck, 59325 MP2,
Muratec PC Board, # Z90-25090-50, NDK-1276PCB2, Missing Dial Knobs,
Murr Elektronik MBM I/O Extension Module, 55920, w/ 55854 Terminals,
Murr Elektronik MBM I/O Extension Module, 55920, w/ 55954 Terminals,
Murr Elektronik MBM I/O Extension Module, 55921, w/ 55953 Terminals,
Murr Elektronik MBM I/O Extension Module, 55923, w/ 55958 Terminals,
Murr Elektronik Profibus Module, 55018, w/ 55950 Terminal Module,
MWS MOBD-II CPU Board, # Z55-00459-00,
Nachi / Daihen PC Board, UM211D, Off of Nachi AX Robot Controller
Nachi / Daihen Power Supply Off Nachi AX Robot Controller, 4-PSU-155, , 2006
Nachi 5 HP Motor w/ Nachi Pumps VDC-1B-2A3-U-6071B / UVC-1A-2A3-37A-4-6071B
Nachi AC Servo Motor, # MFM352H1V, 3.5kW,
Nachi AC Servo Motor, # MFM352H3V, 3.5kW,
Nachi AC Servo Motor, # MFMA452D5V3, 4.5 kW,
Naka Seiki Toyo 3-1/2" Power Chuck, # 64KBP6431, 3RJ-F312MZ,
National Instruments USB Multifunction I/O, NI USB-6210, P/N 194710D-04L,
NEC 6 Axis Pendant Controller, FPB-EC, ECNC, FPB-EC-1, Date: 12.1994,
NEC AC Servo Drive, ADU 25F 1X E,
Neff Wiesel Powerline Linear Actuator, WM60-000-MM20-695-1165-MGK,
Nelson Welding PC Board, 66-02-02, NTR 1200W/ NTR 1800W,
Nematron Industrial Operator Interface, # IWS-1001,
Nematron Industrial Work Station, ICC-6L6-HS1,
Nematron Industrial Work Station, ICC-6L6-HS2,
Nemicon Optical Shaft Encoder, NE-1024-2MDa, OSE1024-3-15,
NetuRen IDC Detector PC Board, # AB3622,
NetuRen PC Board, AB3621C, FB Detector, 89-3094,
NetuRen Printer PC Board, # AB3611A,
NetuRen Relay Sequence PC Board, # AB3601,
NetuRen Thy Gate PC Board, # AB3631,
Nexen Clutch & Brake Assembly, P/N 923606, LSCC-54, 1.500" Bore Pilot,
Nikko Precision Hydraulic Cylinder Gamet, # 35FR-K,
Nikko Precision Hydraulic Cylinder Gamet, # F8,
Nippon Gerotor Index Motor, IS-160-2PC-2AH0-HL-17, w/ Nachi Valve,
Nippon Gerotor Index Motor, IS-170-2PC-2AL0-HL, w/ Nachi Valves,
Nippon Gerotor Index Motor,280-2PC-1ALO-HL-09,
NO BOX Denso Teach Pendant, OP-RC5-1, 410110-0200, NNB, OLD STOCK
NO BOX!! NSD Controller, VM-2B-L5, * NNB *
Non-Linear Systems Linearization Function Signal Module, 8000-1-1-04-60-43
Norgren Olympian L15-000-MPD0, B15-096-A3L0 Lubricator,
NR & D Protocol Converter, CAT2-BT, RS-422/485, RS-232,
NSD Controller VS-5B Unit, Type# VS-5B-PNNP-0-2.0,
NSD VS-5B Controller Unit, VS-5B-PNNP-1-2.0,
NSK Planet 500 Precision Jig Grinding Attachment, Mod# H3440, 3/4" Arbor,
NTN Double Row Cylindrical Bearing, # NN3020KD1C0NAP4,
NTN Super Precision Roller Bearing, 562020-GNP4.NTN,
NUM Servomac AC Servo Motor, BMS 19023630L,
NUM Servomac Milano PCB Board, 2UACLACQF356,
Numatics Motion Control NSDP6C Motor Drive, 115 VAC, 7 Amps,
Ogura Clutch Brake Unit, MNB 1.6G-38, 24 VDC,
Okuma / Sanyo Denki Servo Motor W/D6 Encoder CN-400T-21,
Okuma / Shindengen DC Power Supply Unit, NS24015, E0451-300-001, 90 Day
Okuma 4.3 kW AC Servo Motor, # BL-MC140E-30T, 3000 RPM,
Okuma 5000 ASG Operator Panel, E0105-800-020-1,
Okuma 5020 LC Operator Panel, E0105-800-134,
Okuma AC Servo Motor, # BL-MC140E-30T, 3000 RPM,
Okuma AC Servo Motor, # BL-MC200E-20SN-A, 2000 RPM,
Okuma AC Servo Motor, # BL-MC200E-20TB, 2000 RPM,
Okuma AC Servo Motor, # BL-MH201E-20SN-A, 2000 RPM,
Okuma BL-Motor AC Servo, # BL-H200E-20T, 2000 RPM,
Okuma BL-Motor AC Servo, # BL-MC100E-20S, 2000 RPM,
Okuma BL-Motor, BL-MC25E-30SB, 133V, 3000 RPM, Mfg'd: 2008,
Okuma Board, XPS-454, XPS-356, XPZ-390,
Okuma D-8A / D8A AC Spindle Drive, Vac-Drive, 1006-1216, E4809-045-084-G,
Okuma DC Power Supply, DCPS-2, For 4 Axes, , READ DESCRJPTION,
Okuma DC Power Supply, E4809-436-002-A, For 6 Axes,
Okuma DC Servo Drive LDU-600, XA Axis, E4809-747-005-D, 25A,
Okuma DC Servo Drive LDU-600, ZA Axis, E4809-747-005-B, 25A,
Okuma DC Servo Drive LDU-600, ZB Axis, E4809-747-005-G, 25A,
Okuma DC Spindle Drive, Mod# 1A, SDU-600-W, E4809-045-019E,
Okuma DC Spindle Drive, Mod# 3, SDU-600-W, E4809-045-019E,
Okuma ECP-IIA Board, E4809-045-122-F w/ Field Net Card E4809-770-048-C,
Okuma LC-20 Servo Motor W/D6 Encoder C-800T-25,
Okuma Operator Panel, EUA-IC0007, EUA-1C007,
Okuma OPUS 5000 GLP Power Supply Module, E0451-521-037,
Okuma OPUS 5000 II CRP CARD II, # E4809-436-018-C,
Okuma OPUS 5000 -II CRPB -II Board # E4809-436-013-D,
Okuma OPUS 5000 II Main Board II B, # E4809-045-091-C,W/Bubble Memory Card,
Okuma OPUS 5000 LP Power Supply Module, E0451-521-029,
Okuma OPUS 5000 Power Supply Module, E0451-521-046 REV. C, , 90 Day
Okuma Opus 5000 Power Supply, 5000T, E0451-521-016A,
Okuma OPUS 5000 RS Board, E0241-653-101,
Okuma Opus 5000 SVP CARD, E4809-045-057-D, (E-PR, SENSOR)
Okuma OPUS 5000-II Main Board, # E4809-436-011-E,
Okuma OPUS 7000 ACP Board, E4809-770-102,
Okuma OPUS 7000 CPU/IF Rack 8, E7191-855-018-2, E4809-770-059-B,
Okuma OPUS7000 MPIO PC Board, E4809-436-071-A,
Okuma Servo Drive # BDU-30A, Top Board E4809-032-498-B,
Okuma Servo Drive # BDU-50A, Top Board E4809-032-498-B,
Okuma Servo Drive # BL-D50D, Top Board E4809-770-020-C,
Okuma Servo Drive, BLII-D YD 75-50A, Ver. 2.2,
Okuma Servo Motor # BL-180E-20T, Encoder Okuma # OSP,
Okuma SW Board, XPS-454R, RDK-IC05020,
Okuma VAC III CPU Board, E4809-045-152-A, 1006-1110-18-05,
Okuma WHOLE OPUS 5000 E4809-045-035-B, E0227-702-005, E4809-045-0, SEE Pics
Okuma WHOLE OPUS 5000 E4809-045-035-C, E0227-702-005, E4809-045-0, SEE Pics
OLD STOCK Fanuc PCB (INVERTER) Board, # A20B-8100-0710, NNB,
OLD STOCK Fanuc SL Series Amplifier, # IC800SLA0752A, ,
