福建中立恒自动化设备有限公司

1．输入/输出单元

输入/输出单元通常也称I/O单元或I/O模块，是PLC与工业生产现场之间的连接部件。

PLC通过输入接口可以检测被控对象的各种数据，以这些数据作为PLC对被控制对象进行控制的依据；同时PLC又通过输出接口将处理结果送给被控制对象，以实现控制目的。

由于外部输入设备和输出设备所需的信号电平是多种多样的，而PLC内部CPU的处理的信息只能是标准电平，所以I/O接口要实现这种转换。

I/O接口一般都具有光电隔离和滤波功能，以提高PLC的抗干扰能力。另外，I/O接口上通常还有状态指示，工作状况直观，便于维护。

PLC提供了多种操作电平和驱动能力的I/O接口，有各种各样功能的I/O接口供用户选用。I/O接口的主要类型有：数字量（开关量）输入、数字量（开关量）输出、模拟量输入、模拟量输出等。

常用的开关量输入接口按其使用的电源不同有三种类型：直流输入接口、交流输入接口和交/直流输入接口。

常用的开关量输出接口按输出开关器件不同有三种类型：是继电器输出、晶体管输出和双向晶闸管输出。

继电器输出接口可驱动交流或直流负载，但其响应时间长，动作频率低；而晶体管输出和双向晶闸管输出接口的响应速度快，动作频率高，但前者只能用于驱动直流负载，后者只能用于交流负载。

PLC的I/O接口所能接受的输入信号个数和输出信号个数称为PLC输入/输出（I/O）点数。I/O点数是选择PLC的重要依据之一。当系统的I/O点数不够时，可通过PLC的I/O扩展接口对系统进行扩展。

2．通信接口

PLC配有各种通信接口，这些通信接口一般都带有通信处理器。

PLC通过这些通信接口可与监视器、打印机、其它PLC、计算机等设备实现通信。

PLC与打印机连接，可将过程信息、系统参数等输出打印；与监视器连接，可将控制过程图像显示出来；与其它PLC连接，可组成多机系统或连成网络，实现更大规模控制。

与计算机连接，可组成多级分布式控制系统，实现控制与管理相结合。远程I/O系统也必须配备相应的通信接口模块。

3．智能接口模块

智能接口模块是一独立的计算机系统，它有自己的CPU、系统程序、存储器以及与PLC系统总线相连的接口。

它作为PLC系统的一个模块，通过总线与PLC相连，进行数据交换，并在PLC的协调管理下独立地进行工作。

PLC的智能接口模块种类很多，如：高速计数模块、闭环控制模块、运动控制模块、中断控制模块等。

Supermicro X8DT6-F 2x s1366 DDR3 D Motherboard - Sub SATA

Seagate ELITE-23 23.2GB 5.4K 2MB Ultra SCSI 50-PIN 13.3cm ST423451N

ADVANTECH AIMB-766 REV.A2 LGA775 DDR2 PCIe PCI ATX

Supermicro X6DHE-G2CE 2x S.604 DDR2 PCIE SATA ATA Supermicro Server Board

JVC XM-5442G Air Snake 4MM Dat SCSI 13.3cm

Dell 0RC220 1470W PowerEdge 6850 SP574 RC220

EMACS P1H-5701G 700W Power Supply ATX 24-PIN Eps Molex SATA

SEAGATE ELITE-23 23.2GB 5.4K 2MB ULTRA SCSI 50-PIN 5.25" ST423451N

TYAN TIGER I7500 S2722 Motherboard 2x s603 ATX PCI - X DDR

SUPERMICRO X8DT6-F MOTHERBOARD 2x s1366 DDR3 D-SUB SATA

 SUPERMICRO X8DT6-F MOTHERBOARD 2x s1366 DDR3 D-SUB SATA

SERVER BOARD SUPERMICRO X6DHE-G2CE 2x s.604 DDR2 PCIe SATA ATA

JVC XM-5442G STREAMER 4MM DAT SCSI 5.25''

Lenovo ThinkServer TD340 Xeon 2x E3-2430v2 16GB DDR3 0GB 16xSFF Chassis

Intel SE7501CW2 S.604 DDR C26740-304

TYAN TIGER I7500 S2722 MOTHERBOARD 2x s603 ATX PCI-X DDR

JMR ELECTRONICS PCA-00255-0A Rev.C DSSH-217 SAS Controller

HP 373275-001 S.604 DDR PCIe PCI-X ML150 G2 Motherboard

M.G.M. BM 90LB4 IMB14R 2.7kW RPM 1390 Engine

Sonne 541-0570-04 Ultrasparc T1 1Ghz 16x DDR2 T2000 Motherboard

S 541-0570-04 MOTHERBOARD ULTRASPARC T1 1Ghz 16x DDR2 T2000

M.G.M. BM 90 LB4 IMB14R 2,7kW RPM 1390 ENGINE

Motherboard ABIT AB-BH6 Sdram PCI Isa Slot 1

EMACS P2H-6400P B001140010 400W 2U ATX 24-PIN

TERARECON Volumepro 1000 40-0389-08 Rev C2 08687183

Adaptec ASR-8805 SAS 12Gbps / SATA 6Gbps Raid Pcie

Supermicro P4SBE S.478 Sdram ATX

TERARECON VolumePro 1000 40-0389-08 REV. C2 08687183

APPLE ASTEC AA16251 250W 614-0003

Motherboard HP 412318-001 Proliant DL585 G1 System Board

Motherboard S 411721200068-R s959 DDR 375-3490-01

IBM X-Series 365 Server Motherboard 26K6936 26K6623 26K6619

MOTHERBOARD HP 373275-001 s.604 DDR PCIe PCI-X ML150 G2

IBM xSERIES 365 SERVER MOTHERBOARD 26K6936 26K6623 26K6619

Toshiba 527MB 4.2K Ata 2.5'' MK1924FCV

Toshiba 1GB 4.2K Ata 2.5'' MK1002MAV

Fujitsu Siemens D1627-C32 GS2 S.478 DDR

NIPRON eNSP3-450P-S21-H0V 350W Continuous DC PSU with Accu Male ATX 204-PIN

NVIDIA Quadro RTX 4000 8GB GDDR6  Mot

NIPRON eNSP3-450P-S21-H0V 350W NONSTOP DC PSU WITH ACCU CONNECTOR ATX 204-PIN

Seagate ST1200MM0178 1.2TB 10k Sed 12Gb/S SAS 6.3cm Hard Drive

DELL 0CY119 1570W PE R900 D1570P-S1 DPS-1570DB A

Motherboard HP 356782-001 Proliant DL585 G1 System Board

Dell 0CY119 1570W Pe R900 D1570P-S1 DPS-1570DB One

HARD DRIVE SEAGATE ST1200MM0178 1.2TB 10k SED 12Gb/s SAS 2.5"

3Y POWER TECHNOLOGY YH-7761A YH7761-XAKR 760W 3U

2000W 1U Supermicro PWS-2K04A-1R

HP 872290-002 6TB 7.2K 128MB SAS-3 3.5'' MB006000JWFVL

HP 787335-001 6TB 7.2K 64MB SAS-2 3.5'' HUS726060ALS644

HP 791055-001 781515-001 1.8TB 10K 128MB SAS-3 2.5'' EG1800JEMDB

SUPERMICRO PWS-2K04A-1R 2000W 1U

NVIDIA QUADRO RTX 4000 8GB GDDR6  BRACKET

 · NVIDIA · 8 GB

Dell 0P8823 HP-U280EF3 280W PowerEdge 750

ETASIS ERP-2305 300W ERP-305 ATX 20-PIN

FUJITSU D970-A11 GS3 Socket 8 Edo Dimm C26361-D970-W100

S Microsystems 541-0851-08 Main Board 501-7927-04

IBM 10N9751 10N9757 42R5104 42R5105 28DA Motherboard

IBM 43X3251 1500 Watt DPS-1400AB A Power Supply

Intel S5400SF 2x S.771 D87491-403 16xDDR2 Motherboard

S 540-6336-01 Motherboard Server V440

IBM 09P0037 System Board Rs / 6000 7044-170 09P1688 Series

Dell 00HDP0 LGA1366 DDR3 SATA Pci-E PowerEdge R510 Motherboard

SEAGATE BarraCuda 9.1GB ULTRA SCSI 7.2K 3.5'' ST19171N

IBM 00Y2432 1.2TB 10k 6G SAS 6.3cm 00Y2507 Hard Drive

POWER SUPPLY IBM 43X3251 1500 WATT DPS-1400AB A

IBM 09P0037 SYSTEM BOARD RS/6000 7044-170 09P1688 pSERIES

MOTHERBOARD INTEL S5400SF 2x s.771 D87491-403 16xDDR2

MOTHERBOARD IBM 10N9751 10N9757 42R5104 42R5105 28DA

MOTHERBOARD DELL 00HDP0 LGA1366 DDR3 SATA PCI-E POWEREDGE R510

External Air Snake HP C5687B DAT40 20/40GB SCSI

HARD DRIVE IBM 00Y2432 1.2TB 10k 6G SAS 2.5" 00Y2507

Fujitsu 300GB 15K 8MB SCSI U320 3.5"""" MBA3300NP

EXTERNAL STREAMER HP C5687B DAT40 20/40GB SCSI

Supermicro X8DAi Dual S.1366 DDR3 Eatx

Supermicro X8SIA Rev 1.01 LGA1156 DDR3 PCI ATX

FUJITSU 300GB 15K 8MB SCSI U320 3.5'' MBA3300NP

HP MM1000FBFVR 1TB 2.5'' 6G SFF SAS 605832-002

EMACS MRT-6320P B000460110 Cage 320W 2x PSU MRT-6320P-R B010460014

IBM 74Y8421 VOLTAGE REGULATOR MODULE VR9004-030G

SUPERMICRO X8SIA REV 1.01 LGA1156 DDR3 PCIe PCI ATX

S 375-3152-03 System Board  Pwa-Grover-Plus Riard

NVIDIA QUADRO RTX 4000 8GB GDDR6

EMACS MRT-6320P B000460110 CAGE 320W  2x PSU MRT-6320P-R B010460014

CONNER 64MB 3.4K ATA 2.5'' CP-2064

S Microsystems 501-7818-03 Main Board 2x Socket F DDR2 X4540

Lenovo 46U3298 S7002 2x LGA1366 Motherboard for Think Server RD230

Supermicro P4DSE 2x S.603 DDR PCI-X Server Board

Dell 00081004 Motherboard S.7 Sdram Riser PCI Isa Cache

ETASIS EFRP-463 Power Supply Additional 460 Watts

ETASIS EFRP-2463 Server Reddant Power Supply Cage 460W460W

ZYTEC EPO71235-E 350W Power Supply

Conner 64MB 3.4K Ata 2.5"" CP-2064

Seagate Enterprise Nas HDD 6TB 7.2K 128MB SATA III 3.5"" ST6000VN0001

HP 404403-002 1TB 7.2K 16MB FC 3.5'' NB1000D4450

MOTHERBOARD LENOVO 46U3298 S7002 2x LGA1366 for THINKSERVER RD230

DELL 00081004 MOTHERBOARD s. 7 SDRAM RISER PCI ISA CACHE

ZYTEC EPO71235-E POWER SUPPLY 350W

SERVER BOARD SUPERMICRO P4DSE 2x s.603 DDR PCI-X

ETASIS EFRP-463 POWER SUPPLY REDDANT 460 WATT

Dell 06FDT5 5TB 7.2K 128MB SATA III 3.5"" ST5000NM0024

Dell EqualLogic 02P4N9 2TB 7.2K 64MB SATA III / SAS 3.5"" 0K6DPT ST2000NM0011

Dell EqualLogic 02P4N9 2TB 7.2K 64MB SATA III / SAS 3.5"" 00NV66 ST2000NM0011

DELL 0CK3MN 2TB 7.2K 128MB SATA III 2.5"" ST2000NX0403

Seagate 390MB 4.5K Ata 3.5"" ST3390A

Dell 006VJ7 480GB MLC SAS-3 2.5"" PX04SRB048

Fujitsu 2.1GB 4.2K Ata 2.5"" MHFAT

NORTEL DS1404006 Corner Switch Module 10/100

INTEL SE7501CW2 s.604 DDR C26740-305

Fujitsu D3388-A13 GS1 LGA2011-3 DDR4 PCIE

Fujitsu D3388-A23 GS1 S.2011-3 DDR4 Celsius M740

ETASIS EFRP-465 460W 1U Hot Swap

TDK-LAMBDA NV-175 NV1-1G000-C 175W

DELL EQUALLOGIC 02P4N9 2TB 7.2K 64MB SATA III / SAS 3.5'' 00NV66 ST2000NM0011

DELL 0CK3MN 2TB 7.2K 128MB SATA III 2.5'' ST2000NX0403

DELL 06FDT5 5TB 7.2K 128MB SATA III 3.5'' ST5000NM0024

DELL EQUALLOGIC 02P4N9 2TB 7.2K 64MB SATA III / SAS 3.5'' 0K6DPT ST2000NM0011

SEAGATE 390MB 4.5K ATA 3.5'' ST3390A

DELL 006VJ7 480GB MLC SAS-3 2.5'' PX04SRB048

FUJITSU 2.1GB 4.2K ATA 2.5'' MHFAT

DOT HILL Systems FRUAC10-01 4 Fiber Channel Rear Card

NORTEL DS1404006 EDGE SWITCH MODULE 10/100

FUJITSU D3348-A23 GS1 s.2011-3 DDR4 CELSIUS M740

FUJITSU D3348-A13 GS1 LGA2011-3 DDR4 PCIe

HP C1559-6003 Air Snake Sures DAT24X6 SCSI C1559B

EMC 100-561-294 CX-10C Storage Processor Module 0PU772

Server Power Supply MINEBEA DM2736 AF81066 160W

ICL AC41368.1 PGA169 8x Simm Riser Isa A9930100H

DELL 0K552T s1207/F Motherboard PowerEdge R905 DDR2 0F810R K552T

IBM 04N6321 System Board Server CA21P3459-141 PCI

HP C1559-6003 STREAMER SURESTORE DAT24X6 SCSI C1559B