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真正意义上的冗余控制器结构提供无扰动切换和高可靠性。
提供众多的通讯选择、更多的模拟量、数字量和特殊输入输出模块。
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★陕西欣鸿然自动化设备有限公司
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可编程逻辑控制器实质是一种专用于工业控制的计算机，其硬件结构基本上与微型计算机相同，基本构成为：
一、电源
可编程逻辑控制器的电源在整个系统中起着十分重要的作用。如果没有一个良好的、可靠的电源系统是无法正常工作的，因此，可编程逻辑控制器的制造商对电源的设计和制造也十分重视。一般交流电压波动在+10%(+15%)范围内，可以不采取其它措施而将PLC直接连接到交流电网上去
二、中央处理单元(CPU)
中央处理单元(CPU)是可编程逻辑控制器的控制中枢。它按照可编程逻辑控制器系统程序赋予的功能接收并存储从编程器键入的用户程序和数据；检查电源、存储器、I/O以及警戒定时器的状态，并能诊断用户程序中的语法错误。当可编程逻辑控制器投入运行时，首先它以扫描的方式接收现场各输入装置的状态和数据，并分别存入I/O映象区，然后从用户程序存储器中逐条读取用户程序，经过命令解释后按指令的规定执行逻辑或算数运算的结果送入I/O映象区或数据寄存器内。等所有的用户程序执行完毕之后，*后将I/O映象区的各输出状态或输出寄存器内的数据传送到相应的输出装置，如此循环运行，直到停止运行。
为了进一步提高可编程逻辑控制器的可靠性，对大型可编程逻辑控制器还采用双CPU构成冗余系统，或采用三CPU的表决式系统。这样，即使某个CPU出现故障，整个系统仍能正常运行。
三、存储器
存放系统软件的存储器称为系统程序存储器。
存放应用软件的存储器称为用户程序存储器。
四、输入输出接口电路
1．现场输入接口电路由光耦合电路和微机的输入接口电路，作用是可编程逻辑控制器与现场控制的接口界面的输入通道。
2．现场输出接口电路由输出数据寄存器、选通电路和中断请求电路集成，作用可编程逻辑控制器通过现场输出接口电路向现场的执行部件输出相应的控制信号。
五、功能模块
如计数、定位等功能模块。
六、通信模块

3SP-SP ALARM, LEGEND PLATE 22.5MM 8/PKG
PowerFlex 700AFE 325A Active Front End
THOMAS & BETTS, T-21SDA, DISConNECT ADAPTER KIT (ACCESSORY)
Photoelectric Accessories
A6T20, 600V 20A CLASS T FUSE
CUSTOM CARD
Mersen AJT45 Fuse, Class J Time Delay
K5500 FR3 control power conn.
linksys WRT54G 54 Mbps 4-Port 10/100 Wireless G Router
ConNECTOR KIT, K5500, DSL
Siemens B120 20A, 1P, 120V, BL Type, 10 kAlC, CB
52 A at 40 Hp ND/30 Hp HD 21A
W-Series, Fuse terminal, Rated cross-section: 6 mm2, Screw connection EACH
1485G DeviceNet Physical Media
Weidmuller, 1828130000, CABTITE KT 2/B 6/PKG
DNET CONNECTOR
ELECTRICENTER, ECHS125, LOAD CTR RAIN-HUB 1.25 INCH
MCS Bus Bar Module with Wires - Short
FERRAZ, US6JI. FUSE BLOCK 60AMP 1POLE 600V CLASSJ
Bus Bar Switch
FERRAZ, US14PAK, FUSE ACCESSORY MULTI-POLE ASSEMBLY KIT 9/PACK
TERMINAL COVER KIT, 141A-BKH
GENERAL ELECTRIC TERMINAL BOARD EB25B04
MCS Bus Bar Shroud Holder
SIEMENS, 3RU2926-3AA01, STAND-ALONE INSTALL BRKT S0 SCREW
2400 mm Length 12X10 mm Copper Busbar
6ES7972-0BB41-0A0 -- ConNECTOR PROFIBUS 12MB 35DEGREE W/PG PORT
Limit Switch Repair Kit
SIEMENS, 3SB3640-6BB70, PILOT LIGHT GREEN, 3SB36406BB70
PowerFlex 750 Series DC Line Fuse Kit
WEIDMULLER 0514510000 DIN RAIL, SLOTTED, STEEL, TS35X7.5MM, 1M
N4X/12 frameS A B C & D EXT FAN
WEIDMULLER, 1221200000, HEAVY DUTY CONNECTOR, HE 24 FS 25-48, 500 V, 16 A
KIT,STAR INTERFACE,700S,1030A,400V CL,FR
LEVITON, CR15-W, RECEPTACLE DUPLEX 15AMP 125V NEMA5-15R 2P 3W WHITE 10/BX
1030A IGBT MODULE FOR ONE PHASE
WEIDMULLER, 0534200000, FERRULE 10/22
300 AERE POWER MODULE SUB-ASSY/COPPER H
ENTRELEC, 029969404, JUMPER 2POLE SCREWLESS (18/PKG)
1300A IGBT MODULE FOR ONE PHASE
BUSSMANN, LPJ-20SP, FUSE, 20A, 600V, TIME DELAY
KIT,ELEC,PWR STRUCTURE,700S/H,2250A,600V
SM200-5L, SHAFT, TYPE M, LENGTH 20 0MM/7
KIT PWR STRUCT 700S/H 1300A 400V CLASS F
ATQ2 1/4 -- Fuse, 2-1/4A, ATQ, 500VAC
PowerFlex 700H/S Precharge Board Kit
LD-S7-3, Cable & Connector
Fan Capacitor Kit 7uF PF700H/S F9
AMP TRAP, AJT8, 600V 8A CLASS J TD FUSE
Fan Capacitor Kit 7uF PF700H/S F10/12
SIEMENS, LBRH2, BLACK ON/OFF NON-PADLOCKABLE HANDLE
KIT,PWR STRUCT,700S/H,920A,600V CLASS,FR
PowerFlex 700S/H Power Structure40041553
PowerFlex Power Module Kit
820A 920A & 1030A IGBT MODS FRM 12 DRI
1150A IGBT MODULE FOR ONE PHASE
1300A IGBT MODULE FOR ONE PHASE
1450A IGBT MODULE FOR ONE PHASE
261 AERE POWER MODULE SUB-ASSY 400/480V
300 AERE POWER MODULE SUB-ASSY/COPPER H
385A IGBT MOD LEFT-SIDE & RIGHT-SIDE
KIT IGBT PWR MOD 700S/H 460A 400V CL F
500A IGBT MOD LEFT-SIDE & RIGHT-SIDE
590A IGBT MODULE FOR ONE PHASE 400/480V
650A IGBT MODULE FOR ONE PHASE 400/480V
730A IGBT MODULE FOR ONE PHASE 400/480V
170 AERE POWER MODULE SUB-ASSY 600/690V
1030A IGBT MODULE FOR ONE PHASE
1180A IGBT MODULE FOR ONE PHASE
208 AERE POWER MODULE SUB-ASSY/COPPER H
KIT IGBT PWR MOD 700S/H 261A 600V CL F
KIT IGBT PWR MOD 700S/H 325A 600V CL F
KIT,IGBT PWR MOD,700S/H,416A, 600V CL, F
IGBT MODULE,1 PHASE,FR11,460A,600V CLASS
502A IGBT MODULE FOR ONE PHASE 600/690V
590A IGBT MODULE FOR ONE PHASE 600/690V
KIT IGBT PWR MOD 820A 600V CL FR 12 700S
920A IGBT MODULE FOR ONE PHASE
ConVERSION 700H TO S 600V CL FR 14 1500A
ConVERSION 700H TO S,600V CL,FR 14,2250A
PWRFLEX 700S FRM 10-13 24V FILTER-CBL,F
POWERFLEX 700S FRM 10-13 EMI SHIELD KIT
700S frame 13 1250A 690V FUSE KIT
700S frame 13 1KA 1KV FUSE KIT
PowerFlex 700S/H Interface Board Kit
KIT,STAR INTERFACE,700S,1030A,400V CL,FR
700S FR 12 STAR I/F PCB KIT 820A400/480V
700S FR12 STAR I/F PCB KIT 920A 400/480V
KIT,STAR INTERF,700S,1500A,600V CL,FR14
KIT,STAR INTERF,700S,2250A,600V CL,FR14
KIT,STAR INTERFACE,700S,650A,600V CL,FR
KIT,STAR INTERFACE,700S,750A,600V CL,FR
KIT STAR INTERFACE 700S 820A 600V CL FR
PF700S Voltage Feedback Kit 400/480V
PowerFlex 700S Voltage Feedback Kit
HIM BEZEL HIGH POWER DRIVES NO BRAND
PowerFlex 700L Converter Cassette Kit
PowerFlex 700L Converter Cassette Kit
PowerFlex 700L Addressable Power Kit
PowerFlex 700L Capacitor Assembly Kit
KIT,PF700L, 480V, Frm3B, LCL CAP BANK
KIT,PF700L, 480V, Frm3A, LCL CAP BANK
DC BUS BAR KIT,PF700L FR2
PowerFlex 700L Power Module Fan Kit
PowerFlex 700L Power Module Fan Kit
RDD-Series RDB 480V AC Rotary Servo Mtr
RDD-Series RDB 480V AC Rotary Servo Mtr
AutoMax Maintenance & Troubleshooting
AutoMax Programming Fundamentals
PowerFlex 700S Voltage Feedback Board
KEY FOR 1772-LX LW LZ-178
Power Monitor Install & RSEnergyMetrix
FactoryTalk AssetCentre Configuration
FactoryTalk Historian SE Config & Data
FactoryTalk Metrics - Historian Classic
FactoryTalk Transaction Manager
Microsoft SQL Server for FactoryTalk
RSMACC Installation & Configuration
RSTestStand Enterprise Project Dev
2030 ElectroGuard Maintenance & TS Fund
FIELD CNTRLR.-FCCC
ARMATURE REG.
DRIVER CARD
POWER SUPPLY
ConTROLLER CARD
GATE DRIVER MAXPAK
SUMMING VOLT. REG.
SUMMING SPEED REG.
TIMED VOLTAGE REF.
OP. AMP. FUNCTION
GATE DRIVER AMPL.
FREQ. TO VOLT-FVCC
ANALOG DIVDR-DIVA
TACH LOSS &OVRSPD.
TACH LOSS &OVRSPD. TLOB MAXPAK P
VSSA
OLVA
OLVC
PRMA
DFSA
CLRA CARD
CLRC
ACCA
TSTR SEL SWTH-TSSA
CUSTOM COMP.-CCCA
MODIFIED CARD
DIGITAL SEQ.-VSDC
VLTG. SOURCE-VSAC
DCGA
DCGB
CLSA
DC GATE DRVR-VTGA
FIRING CIRCT-VTGB
MODIFIED CARD O-51805-5
Modified 52808-2 Overload and V Card
PILOT RELAY CARD
PC BD 1200A M RECT
2500A M RECT & SUP
FULL WAVE BRIDGE
CARD
METER FILTER F/B
STATIC RHEOSTAT PC BD
PHASE SEQUENCE
PHASE SEQUENCE
FIELD LOSS P.C.
TACH SCALING CARD
RELAY CARD
FAULT RELAY
POWER SUPPLY P.C.
base DRIVER
DRIVER CARD VVI INVERTER 5
base DRIVER PC BD.
DRIVER CARD USED ON 15,20
DRIVER CARD
O-55300
GATE DRIVER VVI INVERTER
POWER SUPPLY VVI INVERTER
POWER SUPPLY 460V
BUS CLAMP VTAC/BUS CLAM
VOLTAGE DIVIDER VVI INVERTER
VOLTAGE DIVIDER PC
DIODE BD LFT SIDE
AUTO RESTART BD.
RELAY BOARD
CARD
CARD BYPASS CTRL
CURR./VOLTAGE-CVVT
VOLTAGE TO ISOL.
INVTR. base DRIVER
DC TRANS.CKT
KIT GATE SNUBBER
KIT, PRECHRGE BD SA3000
RING COUNTER
POWER MODULE CARD
ISOL. PROC. CNTRL VVI INVERTER
KIT REGULATOR PC BOARD
KIT ASSY PCB POWER MODULE INTER GV3000
KIT, REG BD SP500
GV3000 POWER BOARD 5HP
TORQUE TAPER KIT
KIT, PRESET SPD/INST IF
REF RECEIVER KIT CARD
KIT, REGEN TACH FDBCK
PROCESS LINE KIT
REGULATOR CARD FOR FLEXPAK PLUS
REGULATOR CARD
DRIVER BD.
KIT, ASSY,PCB,DC2CUIT
EXECUTIVE SOFTWARE
DV/DT BD. MAXPAK 5
DV/DT BD.
KIT, ASSY,PCB,FLEXPAK 3000,POWER INTRFAC
KIT, ASSY,PCB,FLEXPAK/BUL 1397,S6 DV/DT,
1 TERMINAL BOARD
VOLTAGE FEEDBACK MAXPAK III
KIT, FIELD SUPPLY
KIT, CARD
FLEXPAK 3000 AC TACH I/F CARD
PMI DC POWER TECHNOLOGY MODULE
DC POWER SUPPLY CARD
KIT, 60HP FLD DRIVE
KIT, 60 HP ARM DRIVE BD
KIT, DVDT PRINTED CIRCUIT BOARD
PMI PROCESSOR MOD
LOCAL POWER INTERFACE (LPI) BOARD, SA300
G.D.I. SA3000
P.I.M. SA3000
KIT PMI RESOLVER
KIT, GATE DRIVER BD
KIT, SNUBBER CIRCUIT
DC BUT I/P VLTMTR
LINE SYNC BOARD
KIT, ConTROL OPTION BOARD
SA3100 LED BOARD
SA3100 ConNECTOR BOARD
KIT, SA3100 RESOLVER DRIVE I/O
KIT, GATE COUPLER
SCRF 115 VOLT
ConTROLLER CARD
ConTROLLER CARD
ConTROLLER CARD
RELAY CIRCT.-115V
RELAY CIRCUIT NON-REV. & DB
RELAY CIRCT.-230V
ConTROLLER CARD
COMPRESSION NETWRK
PRTD-CIRCUIT ASSY
GATE COUPLING BD.
R.C. NETWORK
R.C. NETWORK
CONTROLLER
R.C. NETWORK 460V
PRINTED CIRCUIT
VOLTMETER KIT
AMMETER 150-200 HP
PLC I/O MODULE
O/P FREQ. CARD
60-150 HP AMMETER
INPUT RELAY 115VAC
PRTD-CIRCUIT
24VDC RELAY CARD
INPUT RELAY,24VDC
LINE DRIVER
OPERATIonAL AMPL.
PLSE I/P AMPL-PIAF
TESTER CARD (TSTB)
TESTER CARD-TSTH
VLTG. CONVTR.-VFCE
BIDIRCT. CNVR-BCCC
PULSE DRIVER-PLDB
CRTD-CIRCUIT LVTB
LINNEAR VLTG BD. (LVTC)
FUNCTION GENERATOR
CURRENT VLTG.-CVTB
CURRENT VLTG.-CVTC
CURRENT VOLTAGE CARD (CVTD)
CURRENT VLTG.-CVTE
CURRENT VLTG.-CVTH

　　由此观之，举头三尺，决有神明；趋吉避凶，断然由我。须使我存心制行，毫不得罪于天地鬼神，而虚心屈己，使天地鬼神，时时怜我，方有受福之基。 彼气盈者，必非远器，纵发亦无受用。稍有识见之士，必不忍自狭其量，而自拒其福也，况谦则受教有地，而取善无穷，尤修业者所必不可少者也。

　　古语云：「有志于功名者，必得功名；有志于富贵者，必得富贵。」人之有志，如树之有根，立定此志，须念念谦虚，尘尘方便，自然感动天地，而造福由我。今之求登科第者，初未尝有真志，不过一时意兴耳；兴到则求，兴阑则止。

　　孟子曰：「王之好乐甚，齐其庶几乎？」予于科名亦然。