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摘要】本文首先介绍了国产NA400 PLC可编程控制器的系统体系结构及配置，重点从编程与调试环境、系统通信网络、系统可靠性设计、针对水电厂的设计、性能价格比等方面介绍了NA400可编程控制器的技术特点，最后介绍了以NA400可编程控制器为核心控制平台的工程应用实例。NA400可编程控制器与传统PLC相比在顺序控制图编程、特色功能块、系统的开放性和可靠性等方面具有明显的特点。 

【关键词】国产可编程控制器NA-PLC NA400技术特点工程应用水利水电

1、引言

　　可编程控制器作为一种通用工业控制器，广泛应用于各种工业控制领域。目前中国PLC市场主要厂商为Siemens、Mitsubishi、Omron、Rockwell、Schneider、GE-Fanuc等国际大公司，欧美公司在大、中型PLC领域占有绝对优势，日本公司在小型PLC领域占据十分重要的位置，韩国和中国台湾的公司在小型PLC领域也有一定市场份额，大陆国产PLC的市场份额几乎可以忽略。国内曾有研究单位开发PLC产品，后因种种原因没有发展起来。值得欣慰的是，国内已有公司开始拓展PLC业务，并在中国PLC市场有了一定声音。但其产品主要集中在低端小型PLC上，在大中型PLC研究上国内尚无具有自主知识产权的产品。

　　南大傲拓科技多年来一直致力于可编程控制器的研究，产品涵盖从小型一体化PLC到大型PLC的全系列产品，公司在水利、水电、水处理、重型装备业、物流等等控制领域得到广泛应用。NA400可编程控制器由南大傲拓科技江苏有限公司自主设计与研发，本产品已获得CE认证，并将进行FC认证和船级社认证，已获得专利和软件著作权多项。NA400可编程控制器和同类产品相比具有明显的优势，主要表现在：系统体系结构先进，模块安装位置灵活，内部通信网络采用现场总线，打破国外同档次PLC采用多总线的模式，大大提高了PLC的抗干扰能力和环境适应能力。国内唯一一套自主开发的全面支持IEC61131-3国际标准的软件系统，并具有独创的顺序控制图编程语言。该PLC具有在线监视、在线修改、在线调试、在线仿真等功能，方便用户的开发与调试。

　　NA400可编程控制器采用了嵌入式软件、硬件技术和现场总线技术等技术开发的。针对不同的应用开发了NA600大型PLC、NA400中大型PLC、NA200小型PLC等多种不同类型的PLC，分别应用于大型水电站、中小型水电站及辅机、闸门等不同的应用场合。本文将从NA400可编程控制器体系结构、系统配置、技术特点、工程应用实例等几方面介绍NA-PLC及水电厂的应用。

2、NA400可编程控制器体系结构与特点

2.1 体系结构：

　　NA400可编程控制器采用LAN/FieldBud系统体系结构（如图1所示），提供标准的以太网接口完成与上微机系统的通信，通信规约采用开放的、标准ModBus TCP规约。CPU模件和I/O模件之间采用现场总线作为内部总线及扩展总线，现场总线特有的高可靠性和对现场环境的适应能力，使得NA400可编程控制器系列PLC系统配置的灵活性和可靠性也大大提高。图1以双CPU双以太网热备冗余、单CPU双以太网和单CPU双以太网三种典型的应用。为水电厂的应用提供灵活的系统配置方式，适用于更加广泛的现场应用。

2.2 系统配置：

　　NA400可编程控制器提供三种系统配置，包括单CPU单以太网模式、单CPU双以太网冗余模式、双CPU冗余模式，多种灵活的系统配置模式可以更好地适用多种不同的实际应用。提供了多种类型模件包括电源模件、三种不同类型的CPU模件、串口通信模件（提供8个标准的RS232/RS485）、开关量输入模件、SOE模件、开关量输出模件、模拟量输入模件（电流型和电压型）、温度量模件等。

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APP. VOIP CISCO (LEGGERE DETTAGLI PREZZI) Vari 7911-31-61-14 (Usati-Refurbished)

NEW CISCO Linksys  (SE1500) 5-Port-Ports External Ethernet Switch

ROUTER CISCO 887 IAD (Integrated Access Devices) ADSL2+ (NUOVO - NEW)

NEW Cisco  AIR-ANT5145V-R 5GHz 4.5dBi Diversity Omni Ceiling Mount AntennaRP-TNC

CISCO ROUTER 1803 (NUOVO - NEW)

Cisco Catalyst 3560 PoE Switch WS-C3560-48PS-S V09 w/ Rack Mount

NEW IN BOX CISCO C6800-8P10G Catalyst Gigabit Ethernet Fiber Module *SHIP FAST*

|New| Cisco SPA504G 4-Line IP VoIP Telephone

LOT OF 5 CISCO 8A/S 8-PORT ASYNC/SYNC SERIAL MODULES

Cisco 3700 Series

CISCO LINKSYS SR2024 24-PORT GIGABIT SWITCH

CISCO887VA-M-K9 ADSL ADSL2+ Annex M VPN Router ADVSECURITY LICENSE CISCO 880

Cisco Compatible SFP-H10GB-CU5M, SFP+ Twinax Cable, 5-Meter, 10GBase-CU

CISCO887VA-M-K9 ADSL ADSL2+ Annex M VPN Router ADVSECURITY LICENSE CISCO 880

Cisco Compatible SFP-H10GB-CU5M, SFP+ Twinax Cable, 5-Meter, 10GBase-CU

Lot of 7 Cisco IP Phone CP 7960G VoIP Business Phones

#NEW# Cisco SPA-8X1GE-V2 8-Port Ethernet Shared Port Adapter #FAST SHIPMENT#

NEW Sealed Cisco N7K-F248XP-25E Nexus 7000 Enhanced F2-Series 48 Port Module

Lot of 3 Linksys / Cisco SD208 8-Port 10/100 Switch w/ POWER SUPPLIES VER. 1.1

Lot of 5  Cisco IP  Phone CP-7941G Unified VOIP Phones

Cisco ASA5515-K9 ASA5515-X Security Plus Firewall Rackmount V02

Cisco Systems Catalyst 2960G Series WS-C2960G-24TC-L V04 Rack Mountable Switch

Lot of 8 Cisco IP Phone CP-7941G Unified VOIP Phones

Cisco SRP541W (Small Business) 3g Ready, 2 x WAN, 4x FXS, 1 x FXO, 2 x USB VPN

Cisco Edge 340 Series Display Mount Kit Assembly

*LOT OF 50* CISCO 128MB PC-133 SDRAM-133 168p Server Memory - 15-9247-01

CISCO 2960S - 24 Gigabit Port Switch +2 1G SFP Ports (WS-C2960S-24TS-S/)

For Cisco SFP-10G-LR SFP+ LR Transceiver 10GbE Optical Transceiver Module

WS-C3550-48-SMI - Cisco Catalyst 3550 48-Ports External Managed Switch w/ Ears

* LOT OF 13 * 15-8294-01 - Cisco Viking 256MB PC2100 DDR-266 ECC Switch Memory

* LOT OF 2 * Cisco Intrusion Detection System Services Modules - WS-SVC-IDSM-2

15-8294 - Cisco Smart 512MB(2x256MB) PC2700 DDR-333 200p ECC Switch Memory Kit

* LOT OF 2 * DS-CAC-300W - Cisco MDS 9100 300W AC-DC Power Supplies SPACSCO-02

* LOT OF 5 * PA-1FE-FX - RJ-45 10/100Base-Tx Port Fast Ethernet Port Adapter

* LOT OF 3 * 15-8294-01 - Cisco SimpleTech 256MB PC2100 DDR-266 Switch Memory

* LOT OF 5 * PA-1FE-TX - RJ-45 10/100Base-Tx Port Fast Ethernet Port Adapter

DS-13SLT-FAB2 - Cisco MDS 9513 Hot Swappable Crossbar Switching Fabric Module

* LOT OF 2 * 34-0873 - Cisco Catalyst 4000 Ascom 400W Power Supplies - D0009237

WS-X5009 - HP Cisco 2-Port 100mb/s Base-TX Fast Ethernet Supervisor Engine

Cisco 2800 Series model 2811 Router

CISCO Catalyst 3750 24 10/100/1000T + IPB Image (WS-C3750G-24T-S/)

WS-CBS3020-HPQ - HP BLc3000 BLc7000 Cisco Catalyst 3020 Blade Switch 410916-B21

WS-X6608-T1 - Cisco Catalyst 6000 8-Port RJ-48 T1 WAN Switching Voice Module

SPA-2X1GE - HP Cisco 2-Port Gigabit Ethernet Shared Port Adapter - 47-17368-01

15-9599 - Cisco Viking 512MB PC-133U SDRAM-133 Server Memory - VI8BU647238ETE-SD

800-02691-02 - HP Cisco Fast Ethernet 100 Base-T Adapter Card for Cisco 7000

WS-X5530 - Cisco Supervisor Engine III w/ WS-U5533-FEFX-MMF

PA-MC-8T1 - HP Cisco 8-Port MultiChannel T1/PR1 Port Adapter Module w/ CSU/DSUs

WS-C2950-24 - Cisco Catalyst 2950 24-Port Fast Ethernet Switch IOS V12.1

SM732S8XE1MIEG1 - Cisco Smart 64MB 144p SO-DIMM Flash Memory for SUP720-3BXL

NME-WAE-502-K9 - Cisco WAAS 10/100/1000BaseT Network Module w/Hitachi Hard Drive

Cisco  Linksys 5 Port High Speed Switch

Cisco IP Phone. 7940 Series.

Cisco Pix 501 Firewall

Cisco Catalyst (WS-C3750G-24TS-S) 24-Ports Rack-Mountable Managed Switch

Cisco Fast Ethernet NM-1FE-TX

Cisco Catalyst WS-C2975GS-48PS-L Switch Tested    Number of Network Ports 48

Cisco IP CONFERENCE-STATION 7937G

CISCO  CATALYST 2960 SERIES Switches + 2 GLC-GE-100FX= 100BASE-FX SFP

LOT of 3 Cisco ASA 5505 Series (2 V11+ 1 V05)

NEW IN BOX CISCO NEXUS N7K-F248XT-25E 7000 Enhanced F2-Series **SHIP FAST**

Cisco 48 Port 10-base-T Ethernet Switching Module WS-X5012A

 Cisco WS-C3560X-48T-L Catalyst 3560X 48 Port Data LAN Base

Cisco HWIC-1GE-SFP Gigabit Ethernet High-Speed WAN Module for Cisco Routers

#NEW# Cisco WS-X45-SUP8-E Catalyst 4500 E-Series Supervisor 8-E #FAST SHIPMENT#

New Cisco Stack Cables *37-1122-01*

Cisco ACE 4710 Series (ACE-4710-K9 Application Control Engine

Cisco 1900 Series 1941 Router CISCO1941/K9

Cisco VIC3-4FXS/DID Four-Port Voice Interface Card - FXS and DID

#NEW# Cisco WS-X6908-10G-2TXL 6900 Series 8-Port Fiber Module #FAST SHIPMENT#

Cisco  Catalyst (WS-C3750-48TS-S) 48-Ports Rack-Mountable Switch Managed stackab

NEW IN BOX CISCO 7600-SIP-200 7600 Series SPA Interface Processor **SHIP FAST**

CISCO ASR1006 V02 w/ 2DC, 2x ASR1000-RP1, 2x ESP20, SIP10, 2x SPA-2X1GE-V2

4 x Cisco Gigastack WS-X3500-XL Gigabit GBIC Interface Converters

Lot of (4) Cisco AP Aironet Mounting Kits 69-0869-01 - NEW

Cisco PA-FE-TX

Cisco Catalyst 2900 XL WS-C2924-XL-EN

Cisco 1841 inkl. 32MB CompactFlash Card

Cisco 1841 inkl. 32MB Compact Flash Card

Cisco 1841 inkl. 128MB CompactFlash Card

Cisco 1841 inkl. 64MB CompactFlash Card

Cisco 1841 inkl. 32MB Flash Card

Cisco Aironet 1200 Series AIR-AP1232AG-A-K9 Wireless Access Point

CISCO N7K-AC-6.0KW 341-0230-03 NEXUS 7000 SERIES AC POWER SUPPLY

CISCO GENUINE HWIC-2CE1T1-PRI WAN INTERFACE CARD

Cisco AIR-ANT2506 2.4GHz 5.2dbi Omnidirectional Mast Mount Antenna S2403B

Lot of 2  *NEW* Cisco Unified Color Display IP Phone CP-7945G

NEW Sealed Cisco 2901/K9 Router Never Opened Box 1 Year Warranty FreeShip. Qty 2

Cisco Small Business SF300-08, 8-Port 10/100 Managed Switch

Cisco VG224 Analog Phone Voice Gateway VoIP 24-Port

Cisco X2-10GB-SR TRANSCEIVER MODULES

Cisco X2-10GB-SR

Cisco Licence package LIC-CM-DL-10

Cisco Catalyst (WS-C3750-48TS-S) 48-Ports Rack-Mountable Managed Switch

Lot of (5) Cisco Aironet 5Ghz 3.5 dBi Swivel Dipole Black Antenna AIR-ANT5135D-R

CISCO WS-X6724-SFP-3BXL  NEW SEALED

Lot of 10 Cisco CP-7921G-E-K9 Unified Wireless VOIP Phone

Cisco Catalyst Switch 2960 Series PoE-48 WS-C2960-48PST-L V04 +2 Months Warranty

Cisco Edge 300 CS-E300-K9 All-In-One 4-Port Ethernet Access Platform Switch HDMI

Cisco SL-29-UC-K9= Unified Communication Paper PAK License for 2901-2951 Routers

Cisco 1605R Router x 2

Cisco PIX-525 19" Rack Mount Kit, PIX-525-HW

Cisco PA-FE-TX Port Adapter 1-Port Fast Ethernet

Cisco SPA-2XT3/E3 2 Port Clear Channel T3/E3 Shared Port Adapter

Cisco WS-SVC-NAM-2  Network Analysis Module

Cisco PWR-C49M-1000AC 1000W AC Power Supply

Cisco 15454-TCC2P Timing, Communications & Control Card

Cisco 7600-SIP-200 Cisco SPA Interface Processor-200

Cisco 15454-OPT-AMP-17C

Cisco Systems Catalyst 2950 Series 48-Port Switch WS-C2950G-48-EI

Cisco C12000 2400W DC Power Entry Module 341-0054-01 / CNP3GKKBAA %

Cisco Aironet Power Injector LR - AIR-PWRINJ-BLR1

Cisco Stratacom BC-UFI-8T1/E1 DB15 ? 73-2444-02 Rev. D0 Back Card %

Cisco 34-0697-01 140W 3600 Series Power Supply / Delta Electronics DPS-140HB-1 %

Cisco WS-C6504-E Switch Chassis Only! (No fan / No Power)

Lot of 2 Cisco PWR-2700-AC/4 2700W AC Power Supply AA23420 / 341-0138-02

Cisco 1800 Series Model 1841 Integrated Services Router

NEW CISCO ATA187-I1-A SIP Analog Tel. Adaptor ATA186-I1 NEW

Astec / Cisco ? AA22150 ? 34-1740-02B0 ? CNP3A7JBAB ? Power Supply +

Cisco C12000 2400W DC Power Entry Module │ 34-1652-01 │ CNP3GK0BAA ^

Cisco RV110W-A-NA-K9 Small Business RV110W Wireless N VPN Firewall Router

Cisco Redundant Power System (RPS) 600 19" Rack Mount Kit

*Neuware  NewSealed* CISCO C3KX-SM-10G  (2Years Wntty) VATfree €1680

Cisco SG200-50 48x +2x Combo Port Gigabit Switch compatible w. Linksys SLM2048T

CISCO 1921-SEC/K9 Router 2x Gbit, 2x EHWIC

Cisco WS-C2950SX-24 Catalyst 2950 Series 24-Port Switch 10/100/1000Base-SX

Cisco CP-7975G Unified IP Phone VoIP with Handset Power Brick and US Power Cord

Genuine Cisco C2960S-STACK FlexStack Module V02 Stacking Module New

CISCO 10Gbit SFP+ Transceiver Module (SFP-10G-LRM/)

Cisco Systems Ons 15454 Fan Tray WMUCATLFAA  *

CISCO 2960S - 24 Gigabit Port Switch +2 10G SFP+ Ports incl Stacking Module (WS-

Cisco 7960 Unified IP VOIP Business Phone CP-7960G 6 Lines Tested Working

Cisco Systems PWR600-AC-RPS Redundant Power Supply +

Cisco CMSC 12-09-99 Fan Assembly ? 180212-00 B +

Cisco C6000 Fan Assembly ? 800-03085-01 A0 ? CNMYADYGAA +

Cisco CP-7965G 7965 VoIP phone Warranty More Available

Cisco AIR-WLC2106-K9 Wireless LAN Controller With 4 APs

Cisco WS-X6716-10G 16-Port 10GigE mit X2 modul Mod 6716 w/ DFC3C

Cisco Linksys EF4116 Ver. 2 16-Port 10/100 Exernal Ethernet Switch #

Cisco CRS-16-RP-B CRS-1 16-Slot Line Card Chassis Route Processor #

Cisco ONS 15454 12-Port E3 DS3 FMEC (T54) Network Module │ 15454E-E3DS3-FMEC ^

Cisco Catalyst 6500 / WS-C6500-E Supervisor Engine 32 WS-SUP32-GE-3B #

Cisco 2600 Series CISCO2651 2651 Wired Router W/ WIC-1DSU-T1 - No Face Plate #

Cisco ONS 15000 15216-FLA-8-60.6 8-CH Add / Drop Module │ 74-3202-01 ^

Cisco 10000 Performance Routing Engine ESR-PRE2 / ESR PRE-2 #

Cisco 3600 Series 3660 - 2x Cisco NM-HDV w/ 2x VWIC-2MFT-T1-DI & 4x PVDM12 #

Ebmpapst / Cisco ? Blower / Fan Unit ? 74-3451-01 ? CNUQABHAAA ?   +

Cisco 6500 Series Catalyst WS-C6509-E Chassis WS-C6500-E w/ WS-C6509-E-FAN #

Cisco 10000 Performance Routing Engine ESR-PRE1 / ESR PRE-1 #

Cisco 30-0759-01 GBIC Module ( Lot of 12 )   +

Cisco WS-G5484 ? 30-0759-02 GBIC Module ( Lot of 12 )   +

Cisco 2800 Series 2811 Integrated Services Router w/ 64MB Flash - Cisco2811 #

Cisco WS-C3750G-24T-S V05 24 Port Gigabit Ethernet Network Switch 11-227

Cisco 881W IEEE 802.11n Wireless Integrated Services Router

Cisco WS-C3750G-24T-S V05 24 Port Gigabit Ethernet Network Switch 11-225

Cisco 7100/uBR7100 Series Router 19" Rack Mount Kit

Cisco GLC-SX-MM 1000BASE-SX SFP Transceiver Module

Cisco 3640 Router 19" Rack Mount Kit, ACS-3640RM-19

Cisco 48 port Gigabit SmartSwitch SLM2048 with SFP slots

Cisco PIX-4FE-66 Network Interface Card Refurbished

Cisco SOHO91 Router

VIC3-4FXS/DID=Cisco 4-Port FXS/DID Voice Interface Card

*NEW SEALED Neuware* CISCO WS-C3650-24TD-S (2Years Wnty) 3650 VAT Free €1500

NEW Cisco SG300-52P-K9-NA SG300-52P Layer 3 Switch SG300 52 Port Gigabit PoE

Cisco WS-C3560X-48PF-S Switch 48 x PoE Gigabit Ports

SFP-H10GB-CU3M - CISCO CABLE COPPER TWINAX 3M

CAB-STACK-50CM - CISCO CABLE STACKWISE STACKING 50CM

WS-X6708-10G-3C - CISCO 8-PORT 10GB ETHERNET MODULE WITH DFC3C

C3K-PWR-750WAC - Cisco RPS2300 750W AC POWER SUPPLY

NEW CISCO SYSTEMS 69-1417-01 AIRONET MOUNTING HARDWARE KIT 1240AG!

Lot of 5 Cisco Rackmount Ears / Brackets P/N 700-00453-01

Lot of 8 Cisco Rackmount Ears / Brackets P/N 700-01170-02

Lot of 2 Cisco Rackmount Ears / Brackets P/N 700-08209-01

Cisco PWR-C45-1300ACV 1300W PoE & Data POWER SUPPLY 4506/4500 Many Available!

Lot of 4 Cisco Rackmount Ears / Brackets P/N 700-04794-01

Lot of 4 Cisco Rackmount Ears / Brackets P/N 42-0997-01

Cisco AS5400 Router 19" Rack Mount Kit, AS5400RM-19

Cisco WS-C4900M Cisco Catalyst 4900M Series Switch w/  Dual WS-X4908-10GE & Pwr

Cisco AS5300 Router 19" Rack Mount Kit, AS5300RM-19

NEW SG300-52P-K9-NA SG300-52P Layer 3 Switch SG300 52 Port Gigabit PoE Cisco

New Cisco IPTV-3432-ARCH , Archive Video Server BNIB originally sold for $15,000

CISCO Catalyst 2900XL Series 24-Port 100Mbps SWITCH Fully Managed, Rack-Mount

Cisco Catalyst 2900 24 Port 100Mbps Switch Fully Managed, Rack-Mountable

Cisco  Catalyst 2950 Network Device

New  Genuine Cisco  SFP-10GB-SR

Cisco Small Business RV042 10/100 4-Port VPN Router

Cisco AS5200 Router 19" Rack Mount Kit, AS5200RM-19

Cisco Linksys SRW224G4 24-Port 10/100 + 4-Port Gigabit Switch

LOT OF 12 CISCO 48V POWER ADAPTERS w/ Pwr Cords 34-1977-05 (9), 341-0306-01 (3)

Cisco Linksys SRW224G4 24-Port 10/100 + 4-Port Gigabit Switch

Cisco AC Power Adapter w/ Switch LR-888 37-1070-01

Cisco 7914 Key Expansion Module KEM 7960G 7961G 7970G 7971G-GE CallManager CUCM

Cisco 8945 IP Phone (NEW Communications Manager Call CUCM) CP-8945-K9= Video NIB

NUOVO CISCO DS-SFP-FC4G-SW= 4 GBPS FIBRE CHANNEL-SW SFP LC SP

Cisco HWIC-3G-HSPA

#NEW# Cisco WS-C3560V2-24TS-S 24 Port 2x1G SFP IP Base Switch #FAST SHIPMENT#

New Sealed Cisco VWIC3-1MFT-T1/E1 1-Port T1/E1 Multiflex Trunk Voice/WAN Card Qt

Lot of 2 Cisco ws-x3500-xl Gigastack GBIC transceivers

lot of 2 Cisco 30-0759-01 1000 Base -SX 850 Nm GBIC ws-g5484

Genuine Cisco EHWIC-4ESG 4-Ports Gigabit  Plug-in Switch Module NEW/SEALED EHWIC

Cisco Catalyst (WS-C3550-24PWR-SMI) 24-Ports Rack-Mountable Switch Managed...

Cisco Catalyst 3560 Series Switch WS-C3560-48TS-S V02

NEW Cisco Meraki MR32-HW + LICENSE 802.11ac with Bluetooth Beacons Access Point

Cisco 887VA-SEC-K9 Secure router with VDSL2/ADSL2+ over POTS

Genuine Cisco WIC-4ESW Interface Module For 1721 1760 2600 2600XM 2691

Cisco C3850-NM-4-10G 4 x Gigabit Ethernet/4 x 10 Gigabit Ethernet network module

Cisco Catalyst WS-C3850-48U-E Stackable 48 10/100/1000Ethernet UPOE ports Switch

Cisco SR2016 16-Port 10/100/1000 Gigabit Switch SR2016 16x GB ports  V02

Cisco ASR1004 19" Front and Rear Rack Mount Kit

Cisco CTS-CTRL-DV12 TelePresence Touch 12-inch device

New In Box, Cisco WS-C2960-24PC-L 24 POE 10/100+2 1000/SFP, LAN BASE