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。
以下链接皆有货
Samsung SRDT-300A SRDT300A Rom Driver Tester
Samsung SRDT-300A SRDT300A Rom Driver Tester
Samsung Stepping Motor Controller
Samsung Stepping Motor Controller
Samsung SVR-1645 w/ Missing Part
Samsung SVR-1645 w/ Missing Part
Samsung SVR-430 Digital Video Recorder w/ Scratches
Samsung SVR-430 Digital Video Recorder w/ Scratches
Samsung SVS-5 HDD EXTENSION UNIT
Samsung SVS-5 HDD EXTENSION UNIT
Samwha ECOCR EOCR-FDM EOCRFDM Multi-Functional Protective Relay
Samwha ECOCR EOCR-FDM EOCRFDM Multi-Functional Protective Relay
Samwontech Nova SP590 Temperature Controller
Samwontech Nova SP590 Temperature Controller
Samwontech ST390-S0 ST390S0 Temperature Controller
Samwontech ST390-S0 ST390S0 Temperature Controller
Samwontech TEMP770-11 S5810CA032 0830 Programmable Temp. & Humi. Controller
Samwontech TEMP770-11 S5810CA032 0830 Programmable Temp. & Humi. Controller
SamWoo SWC-0 SWC0 Feeder Controller w/o Cable
SamWoo SWC-0 SWC0 Feeder Controller w/o Cable
Sangshin Brake Lining Shoe Assy NOB
Sangshin Brake Lining Shoe Assy NOB
Sanici PEF Inline-Feeder
Sanici PEF Inline-Feeder
Sanil SB-99N SB99N Sensor
Sanil SB-99N SB99N Sensor
Sanken HWB060S-12 HWB060S12 Power Supply DC12V 52A Made in Korea w/ Breakage
Sanken HWB060S-12 HWB060S12 Power Supply DC12V 52A Made in Korea w/ Breakage
Sanken HWB060S-15 HWB060S15 Power Supply DC15V 5.2A
Sanken HWB060S-15 HWB060S15 Power Supply DC15V 5.2A
Sanken HWB060S-15 HWB060S15 Power Supply DC15V 5.2A Made in Korea w/ Breakage
Sanken HWB060S-15 HWB060S15 Power Supply DC15V 5.2A Made in Korea w/ Breakage
Sanken SSF05300 Power Supply 5V 30A
Sanken SSF05300 Power Supply 5V 30A
Sanki PFC-025AN PFC025AN Feeding System Controller
Sanki PFC-025AN PFC025AN Feeding System Controller
Sankyo DA21222 AC Servo Driver
Sankyo DA21222 AC Servo Driver
Sankyo SB2274C04 Board for Robot Controller SC3200
Sankyo SB2274C04 Board for Robot Controller SC3200
Sankyo seiki MF501NS302KNN04 AC Servo Motor
Sankyo seiki MF501NS302KNN04 AC Servo Motor
Sanmei RT-0P5AXE RT0P5AXE AC100/200V
Sanmei RT-0P5AXE RT0P5AXE AC100/200V
SanMotion RS1A03LG Drive
SanMotion RS1A03LG Drive
Sanrex HKE-1510CT9 HKE1510CT9 Rectifier
Sanrex HKE-1510CT9 HKE1510CT9 Rectifier
SanRex UE1-2050 Thyristor Type Electric Power Adjustment Unit
SanRex UE1-2050 Thyristor Type Electric Power Adjustment Unit
Sansei Denshi 1020B Osc. Unit
Sansei Denshi 1020B Osc. Unit
Sansei Denshi 1020B OSC.Unit
Sansei Denshi 1020B OSC.Unit
Sanso PMD-311 PMD311 Circulating Pump Made in Japan w/ Rust and Scratches
Sanso PMD-311 PMD311 Circulating Pump Made in Japan w/ Rust and Scratches
Sanso PMD-521B6K Magnetic Pump
Sanso PMD-521B6K Magnetic Pump
Sanyo 5300C Compact Servo
Sanyo 5300C Compact Servo
Sanyo ACT 4907 Phase Ratio Checker
Sanyo ACT 4907 Phase Ratio Checker
Sanyo ACT 4908 Phase Ratio Checker
Sanyo ACT 4908 Phase Ratio Checker
Sanyo Denki 103F3505-7041 103F35057041 Stepping Motor w/ Actuator
Sanyo Denki 103F3505-7041 103F35057041 Stepping Motor w/ Actuator
Sanyo Denki 103H5505-70G1 103H550570G1 Stepping Motor 0.75A 0.72 DEG
Sanyo Denki 103H5505-70G1 103H550570G1 Stepping Motor 0.75A 0.72 DEG
Sanyo Denki 103H7123-0409 103H71230409 Step-syn 2A 1.8 deg./step
Sanyo Denki 103H7123-0409 103H71230409 Step-syn 2A 1.8 deg./step
Sanyo Denki 103H7126-04130 103H712604130 Stepping Motor
Sanyo Denki 103H7126-04130 103H712604130 Stepping Motor
Sanyo Denki 103H7126-0722 103H71260722 Servo Motor w/ 35-1000C/T-L3-5V
Sanyo Denki 103H7126-0722 103H71260722 Servo Motor w/ 35-1000C/T-L3-5V
Sanyo Denki 103H7126-0730 103H71260730 Stepping Motor Made in Japan
Sanyo Denki 103H7126-0730 103H71260730 Stepping Motor Made in Japan
Sanyo Denki 103H8222-5111 103H82225111 Stepping Motor DC4 A
Sanyo Denki 103H8222-5111 103H82225111 Stepping Motor DC4 A
Sanyo Denki 103H89222-5211 103H892225211 Stepping Motor
Sanyo Denki 103H89222-5211 103H892225211 Stepping Motor
Sanyo Denki 61BM120BXS70 BL Super Servo Motor
Sanyo Denki 61BM120BXS70 BL Super Servo Motor
Sanyo Denki 65BA008DXT01 Servo Amplifier
Sanyo Denki 65BA008DXT01 Servo Amplifier
Sanyo Denki 65BM003HBEHH Servo Motor
Sanyo Denki 65BM003HBEHH Servo Motor
Sanyo Denki 65BM003HXEHH 01823 BL Super Servo Motor
Sanyo Denki 65BM003HXEHH 01823 BL Super Servo Motor
Sanyo Denki BL Super 67ZA015AM91P01 Servo Amplifier Drive
Sanyo Denki BL Super 67ZA015AM91P01 Servo Amplifier Drive
Sanyo Denki BL Super 67ZA030MXXXC00 Servo Amplifier Drive DEFECTIVE
Sanyo Denki BL Super 67ZA030MXXXC00 Servo Amplifier Drive DEFECTIVE
Sanyo Denki BP003XX24 Power Unit
Sanyo Denki BP003XX24 Power Unit
Sanyo Denki BP010XX Power Unit
Sanyo Denki BP010XX Power Unit
Sanyo Denki D013H713S-02 D013H713S02 Stepping Motor
Sanyo Denki D013H713S-02 D013H713S02 Stepping Motor
Sanyo Denki DU11H713S-01 Stepping Motor
Sanyo Denki DU11H713S-01 Stepping Motor
Sanyo Denki DU13H711S-01 DU13H711S01 Stepping Motor
Sanyo Denki DU13H711S-01 DU13H711S01 Stepping Motor
Sanyo Denki P20B13500FXSH1E AC Servo Motor
Sanyo Denki P20B13500FXSH1E AC Servo Motor
Sanyo Denki P50B08075DCS80 AC Servo Motor
Sanyo Denki P50B08075DCS80 AC Servo Motor
Sanyo Denki P50B08075DXS07 AC Servo Motor
Sanyo Denki P50B08075DXS07 AC Servo Motor
Sanyo Denki P50B08075DXS44 AC Servo Motor
Sanyo Denki P50B08075DXS44 AC Servo Motor
Sanyo Denki P50B08100DXS44 AC Servo Motor w/ rust
Sanyo Denki P50B08100DXS44 AC Servo Motor w/ rust
Sanyo Denki P50B08100HXS3FE AC Servo Motor w/ cut cable and scratches
Sanyo Denki P50B08100HXS3FE AC Servo Motor w/ cut cable and scratches
Sanyo Denki P60B13100HXS00 AC Servo Motor
Sanyo Denki P60B13100HXS00 AC Servo Motor
Sanyo Denki PBM603FXE26 Motor Made in Japan w/ Cut Cable
Sanyo Denki PBM603FXE26 Motor Made in Japan w/ Cut Cable
Sanyo Denki PDT-203-50 PDT20350 San Driver
Sanyo Denki PDT-203-50 PDT20350 San Driver
Sanyo Denki PMESB1A3P43 Stepping Motor Drive
Sanyo Denki PMESB1A3P43 Stepping Motor Drive
Sanyo Denki PMM-UA-4303-7 PMMUA43037 PM Drive Controller
Sanyo Denki PMM-UA-4303-7 PMMUA43037 PM Drive Controller
Sanyo Denki PU0D015RMH1S00 Servo Amplifier
Sanyo Denki PU0D015RMH1S00 Servo Amplifier
Sanyo Denki PV1A015EMT8P00 Servo Amplifier Drive
Sanyo Denki PV1A015EMT8P00 Servo Amplifier Drive
Sanyo Denki Q2AA08075HXP5S Motor
Sanyo Denki Q2AA08075HXP5S Motor
Sanyo Denki R506-12E17 R50612E17 DC Servo Motor w/ E500500C30 Encoder w/ Rusts
Sanyo Denki R506-12E17 R50612E17 DC Servo Motor w/ E500500C30 Encoder w/ Rusts
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