1.产品说明
SIMATICS7-400 PNH系统可以根据具体应用需求量身定制：性能可扩展、冗余度可灵活组态，安全功能易于集成。集成PROFINET接口，可冗余连接I/O设备，或者通过PROFIBUS连接I/O设备，实现工厂通信。无论何种应用，使用SIMATIC S7-400 PNH，均可在熟悉的STEP7 工程环境中，进行便捷而有效的编程和组态。
2.应用
避免控制器故障引起的停机。主要用于生产、能源、供水系统、机场助航照明、编组站系统等域。避免因工厂故障造成数据丢失而导致的高昂重启成本。主要用于行李处理、高架仓库、跟踪和追溯等域。在工厂或机器停机时保护工厂、工件和材料。主要用于炉子、半导体、船舶等域。无监督和维修人员亦能保障正常运行。主要用于污水处理厂、隧道、船闸、楼宇系统等域。
3.效益
简单、高效的工程组态与在标准系统中一样，SIMATIC S7-400H 可以使用所有 STEP 7 编程语言进行编程。可以很容易的把程序从标准系统迁移到冗余系统中，反之亦然。当加载程序时，它会自动传送到两个冗余控制器中。使用 STEP 7，可以对特定冗余功能和配置进行参数设置。
4.出色的诊断和更换优势
利用集成的自我诊断功能，系统可以提前检测故障和发送信号，避免故障对生产过程产生影响。这样可以有针对性地替换故障组件，加快维修进程。可以在系统运行过程中对所有组件进行热插拔。更换一个 CPU 后，当前的所有程序和数据可以自动重新装载。即使在系统运行过程中，也可以修改程序（例如，程序块的修改和重新装载），更改配置（例如，增加或删减 DP从站或）以及改变 CPU 的内存分配。
WATLOW CONTROLLER EZ-ZONE, PM6C4FC-ALEJAAA, SHIPSAMEDAY#1545H6
Watlow CFC6HH0100AAAAA, Shipsameday W/2-3daysshipping #1472AK
Watlow Anafaze CAS, 88-21950-600, Temperature Controller, EXE-COND, #154P2
Wasco Pressure Transducer 1/8" NPT, 768-1063-103/6282, Shipsameday#125C1
Wasco Pressure Transducer 1/4" VCR, SV129-31W2A/6272, Shipsameday#125C2
WASCO Pressure Switch KF-25, 483-17182-00, SV120-31W2B-X/1565, BOX A #129P6
Warrick Control Relay, 26MB1A0-A, 26MB1A0A, ShipSameDay
Warrick Control Relay with Base, 26MB1A0-E, 26MB1A0E, RB11-PC, ShipSameDay
WARD LEONARD 8011B3951-14 & AA13A, shipsameday , #1644X
VWR Multistage Gas Regulator, 55850-474, (MISSING 1 GAUGE COVER) BOX 5 "P10"
Vulcan Calstat Temperature Switch 100 To 600F 120/240V NC, 1E1C9 #1631B1
VS TECHNOLOGY 3.5mm Focal Length, SV-03514V, SV03514V, SHIPSAMEDAY
VOGEL Sensor 9330-000-035, 9330000035, Shipsameday #108W
Vogel PRESSURE SWITCH DS-W20-2-V71, DSW202V71, NNB, ShipSameDay#1615V
Vogel DS-W3-2-V57, VOGEL DSW32V57, SWITCH PRESSURE No Box #108F
VISI TRAP MOISTURE TRAP 3/4" IN/OUTLET SST Gauze Filter Element, 300205, #130AH
Vishay/Dale 70-IHLP2525CZER2R2M1, IHLP2525CZER2R2M01 ,Lot Of 100 Shipsameday D#5
Vishay Sprague 594D107X9016C2T, CAP TANT 100UF 10% 16V, LOT OF 55, SHIPSAMEDAY
Vishay MOSFET P-CH 20V, SI2323DS-T1-E3, SI2323DST1E3, LOT OF 250, SHIPSAMEDAY
Viscoflo Lytron Heat Exchange 3/8" FNPT, ES0510G14 With Comair Rotron 028869,
VIMEC Valves VMC-322, VMC322, MANIFOLD 3 WAY VALVE, H#31
VICOR CONVERTER MOD DC/DC 48V 100W, VI-274-CW/B1, VI-274-CE-B1, Shipsameday#105
VICOR CONVERTER MOD DC/DC 24V 50W, VI-J23-CY, Shipsamwday#1550B8
Vickers HYDRAULIC PRESSURE, DGMX1-3-PP-AW-22-S, DGMX13PPAW22S ShipSameDay #1175F
Vickers CONTROL VALVE, DGMA-3-B-11, DGMA3B11, DGMA-3-B-II, ShipSameDay #1175A12
Vexta Stepping Motor, PK543-NB, PK543NB, SHIPSAMEDAY
VEXTA Stepping Motor, 2 PHASE, PK266-02B, PK26602B, SHIPSAMEDAY
VEXTA Stepping Motor, 2 PHASE, PH266-01, PH26601, SHIPSAMEDAY
VEXTA Stepping Motor PH569-A-Q5, PH569AQ5, SHIPSAMEDAY #1535C7
Vexta Stepping Motor Model PK268-03A, 2 Phase, Shipsameday#154E1
Vexta Stepping Motor 2 Phase, PK243A1-SG18, RR7B725624, Shipsameday#1628B9
Versa Solenoid Valve Four Way, KSG-4312-K30-6K-HC-3-D048, SHIPSAMEDAY#1175K
VERIFLO VALVE 1/4" COMP, 944MSTS, Shipsameday#102PM
VERIFLO REGULATOR 1/4" VCR, 250 PSI, 452002856, SQ140E1003PV1FSMMF, SHIPSAMEDAY
Veriflo REGULATOR 1/4" M/F VCR, QR4003SK2PFSFM, 4000 Psi, SHIPSAMEDAY#1471C5
VERIFLO Regulator 1/4" FVCR, 43900884EV, SQ60302PFSFFEV, MISSING KNOB, #115R2
VERIFLO quarter turn Manual valve 1/2", 955MSFS8MM3.9VESP, SHIPSAMEDAY#1326K7
Veriflo Pressure Regulator, SQ420E100W2PFS8MM, ShipSamday#1641P6
Veriflo Pressure Regulator 1/2" M/F, SQ420E1004702M0T0FS8EP, SHIPSAMEDAY #126A3
VERIFLO Diaphragm Valve 1/4" VCR, 944AOPSLPFSMM, SHIPSAMEDAY#1326K2
VERIFLO Diaphragm Valve 1/4" VCR, 944AOPLPNCSFSMM, SHIPSAMEDAY#1326K3
VERIFLO Diaphragm Valve 1/4" VCR, 944AOPLPNCSFSFF, SHIPSAMEDAY#1326K4
VERIFLO Diaphragm Valve 1/4" FVCR, 955AOPLPNCSFSFFVESP, SHIPSAMEDAY#1326K6
VERIFLO Diaphragm Valve 1/4" FVCR, 944LSFSFFM0T0HC, SHIPSAMEDAY #126A7
Vemer Siber Ersce E202-00-FI, E20200FI, EN831100, Shipsameday #1174A
VEEDER-ROOT, Model T-120506-100, T120506100, 115Vac, 60hz, 6w, #101A16
VAT ANGLE VALVE KF-40, 26432-KA41-AEP1, SHIPSAMEDAY # BOX 7 "C"
Vat Angle Valve KF40, 26432-KA11-BAV1/0062, 26432KA11BAV1/0062Shipsameday #1329Z
Varian Right Angle bakeable 1/4 SQ Drive & Crank Valve 951-5014, 9515014 #1606E6
Varian Right Angle bakeable 1/2 SQ Drive & Crank Valve, 951-5027, 9515027 #ZM10
Varian Pressure Relief Valve NW25 X 1-1/3" CF x 2"L, Shipsameday #126V
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