加入收藏 在线留言 联系我们
关注微信
手机扫一扫 立刻联系商家
全国服务热线15960122459
公司新闻
推送:0100-00975省市县区域/直送2024全+境+派+送
发布时间: 2024-06-19 09:21 更新时间: 2024-11-30 08:30
观看推送:0100-00975省市县区域/直送2024全+境+派+送视频

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。

Lutron NSB DV-603PH-IV Other Sensors and Switches Dimmer Switch

Bell NSB 654 Other Sensors and Switches

NSB AH1221LTW Other Sensors and Switches

Hubbell NSB RFSQ2FDK Other Sensors and Switches Fan & Light Wall Control 1.5A 12

Leviton NSB 2465 Other Sensors and Switches

NSB SI06P-V-K Other Sensors and Switches

NSB SI06P-W Other Sensors and Switches Dimmer Switch 120V 60Hz White

Leviton NSB M1221-R Other Sensors and Switches

NNB AH1221W Other Sensors and Switches

NSB 1995V Other Sensors and Switches

McGill NSB 0121-0010 Other Sensors and Switches

Leviton NSB ODP20-70 Sensor and Switch Accessories

Lutron NSB AY-600P-BL Other Sensors and Switches

 Lutron NSB AY-600P-BL Other Sensors and Switches

NSB 10250TC16 Other Sensors and Switches

Allen Bradley NSB 800EP-SM22 Other Sensors and Switches

Siemens NSB 3SX3-180 Sensor and Switch Accessories

Lutron NSB FSQ-2F-IV Other Sensors and Switches

McGill NSB 0121-0011 Other Sensors and Switches

NSB LSM-XL Other Sensors and Switches

Lutron NSB FS-5FH-IV Other Sensors and Switches

NSB AH1221L Other Sensors and Switches Locking 1P 20A 277V Brown

NNB RF9517 Other Sensors and Switches

RIB Functional Devices Inc. NSB RIBXGFL Other Sensors and Switches Split Core AC

NNB SUL06P Other Sensors and Switches

McGill NSB 0140-4027 Other Sensors and Switches

Lutron NSB CTELV-303P-BL Other Sensors and Switches Dimmer Switch 1P

NSB AH1221LTW-BX-LW Other Sensors and Switches

Bryant NSB 4901GW Other Sensors and Switches

Edwards Signaling NSB 501A-G Sensor and Switch Accessories

Lutron NSB FS-5F-WH Other Sensors and Switches

NSB E50KL38 Sensor and Switch Accessories

GE NSB RA232 Other Sensors and Switches

NSB 3032PL Other Sensors and Switches

NSB LS-XS Sensor and Switch Accessories

Lutron NSB F5-5FH-IV Other Sensors and Switches

NSB TI061 Other Sensors and Switches Dimmer Switch 1P 120V 1Ph 3 way

NSB 14101AF1017 Other Sensors and Switches

NSB TR274W-BX-LW Other Sensors and Switches

Leviton NSB 1223-2IL Other Sensors and Switches 277V

Wiring Device-kellems NSB CSB420I Other Sensors and Switches 4 Way Switch 20A 27

Nippon Automation NSB MOGAH360 Other Sensors and Switches Float Switch

NSB 1895V Other Sensors and Switches

Pass & Seymour NSB RCD11LA Other Sensors and Switches

Tork NSB 5237-UL Other Sensors and Switches

NSB SUL06P-W-KB-LW Other Sensors and Switches Dimmer Switch 120V White

Sti Guardmaster NSB STI-6518 Sensor and Switch Accessories

TELCO NSB LR100NG15 Other Sensors and Switches

NSB E34L1 Other Sensors and Switches

McGill NSB 92-0003 Other Sensors and Switches

NSB C22-WRKV-K20 Other Sensors and Switches Selector Switch 2NO

Lutron NSB AY-600PH-LA Other Sensors and Switches

Legrand NSB 2621-W Other Sensors and Switches

NSB SDC15-W Other Sensors and Switches

NSB E30KG20 Other Sensors and Switches

McGill NSB 0121-0020 Other Sensors and Switches

NNB W-S-896E Other Sensors and Switches Light Switch

Dark To Light NSB D124-1.5-STJ-J50 Other Sensors and Switches Outdoor Photoelect

Telemecanique NSB KCD1Y Other Sensors and Switches

Idec Izumi Corporation NSB 11TS1-21 Other Sensors and Switches

Lutron NSB FSQ-2F-WH Other Sensors and Switches

NSB 275W-BX-LW Light and Dimmer Switches Combination Device 1P 15A 277V Wh

NSB 7623GY-BX-LW Other Sensors and Switches Rocker 20A 277V Gray 3 way

Leviton NSB 1201-2I Other Sensors and Switches 15A 277V Ivory

1  Leviton NSB 1201-2I Other Sensors and Switches 15A 277V Ivory

NSTD4B2A Other Sensors and Switches

Legrand NSB TM870-NICC10 Other Sensors and Switches

Honeywell NSB BZ-2RL-A2 Other Sensors and Switches

1  Honeywell NSB BZ-2RL-A2 Other Sensors and Switches

NSB E58KAM18B Sensor and Switch Accessories

Leviton NSB 5621-I Other Sensors and Switches

Lutron NSB RD-RD-277-WH Other Sensors and Switches Dimmer Switch 8.30A 277V 50/6

NSB 6161A-6501 Sensor and Switch Accessories Mounting Bracket 2 For 18m

NSB 271LA Other Sensors and Switches Combination Device 15A 277V Light Alm

Wiring Device-kellems DS120I Other Sensors and Switches

NSB 275V-BX-LW Other Sensors and Switches Combination Device 1P 15A 277V I

Lutron NSB AY-600PH-WH Other Sensors and Switches

Idec Izumi Corporation NSB BZ-2R756-P7 Sensor and Switch Accessories

Leviton NSB 6629-3W Other Sensors and Switches

Legrand NSB PS20AC3I Other Sensors and Switches Three Way Switch 20A 120-277V Re

NSB CSSA300 Sensor and Switch Accessories

Leviton NSB WSP02-R10 Other Sensors and Switches

Hubbell USD WSPSMUNV-D Other Sensors and Switches

Carling Technologies NSB TA-205-TW-W Other Sensors and Switches

NNB 271W-SP-L Other Sensors and Switches Combination Device 15A 277V White

NSB AH1221LPL-BX-LW Other Sensors and Switches

NSB WFSW15-W-SP-L Other Sensors and Switches

Leviton NSB 9919 Other Sensors and Switches

Leviton NSB 5731 Other Sensors and Switches 10

NSB 7501-BX-LW Other Sensors and Switches Rocker 1P 15A 277V White

McGill NSB 90-0001 Other Sensors and Switches

NSB 6200AS6501 Sensor and Switch Accessories

NSB E51KR32 Sensor and Switch Accessories

NSB 276LA Other Sensors and Switches

NSB 7501W-C Other Sensors and Switches Light Switch 15A 277V 50/60Hz

NSB E57KM18 Sensor and Switch Accessories

Furnas Electric NSB 64EA1 Sensor and Switch Accessories

NSB 7621GY-BX-LW Other Sensors and Switches

NSB 275LA- Other Sensors and Switches

NSB 275W-BX-L Other Sensors and Switches

McGill NSB 1121-0003 Other Sensors and Switches

1  McGill NSB 1121-0003 Other Sensors and Switches

NSB AH1203W Other Sensors and Switches 15A 277V White 3 way

NSB 271LA-BX-LW Other Sensors and Switches

Legrand 663-ISLG Other Sensors and Switches

NSB E57-18GS05-C Sensor and Switch Accessories 30VDC

Abb M2SS2-10B Other Sensors and Switches

NSB 271LA-SP-L Other Sensors and Switches Combination Device 15A 277V Whit

NSB 7961W-BX-LW Other Sensors and Switches Rocker 1P 20A 277V White

NSB 7601BK- Other Sensors and Switches Rocker 15A 277V Black

NSB 271V- Other Sensors and Switches

NSB 1223GY-BX-LW Other Sensors and Switches 20A 277V Gray 3 way

NSB E10E120ES Other Sensors and Switches

NSB 7501BB-K-L Other Sensors and Switches

Hubbell NSB CS320W Other Sensors and Switches 20A White

Leviton NSB 1222-2R Other Sensors and Switches

NSB 7501RB-BX-LW Other Sensors and Switches Rocker 1P 15A 277V Bronze

Lutron NSB MS-OP600M-LA Other Sensors and Switches

NSB 7621-347V Other Sensors and Switches

NSB 1301-7LTLA-BX-LW Other Sensors and Switches 1P 15A 120V Light Almond E

Mulberry NSB 30496 Sensor and Switch Accessories

NSB E10T115AP Other Sensors and Switches 1P 15A 125V

NSB 1303-7LTW Other Sensors and Switches

NSB 7621GY- Other Sensors and Switches

Legrand TM870 Other Sensors and Switches

Pass & Seymour NSB T603-W Other Sensors and Switches 3 Way Toggle Switch 3P 120V

Bryant NSB BS320I Other Sensors and Switches 3 Way 20A 277V Ivory 3 way

McGill NSB 3191-0003 Other Sensors and Switches

NSB LS-XLS Sensor and Switch Accessories

NSB CS120V- Other Sensors and Switches

Telemecanique NSUZK2003 Sensor and Switch Accessories

McGill NSB 3193-0001 Other Sensors and Switches


联系方式

  • 电  话:15960122459
  • 销售:叶工
  • 手  机:15960122459
  • 微  信:15960122459