AS-S908-120 整流模块

AS-S908-120 整流模块

可编程控制器（programmable logical controller，简称PLC）已经越来越多地应用于工业控制系统中，并且在自动控制系统中起着重要的作用。所以，对PLC的正确选择是重要的。

面对众多生产厂家的各种类型PLC，它们各有优缺点，能够满足用户的各种需求，但在形态、组成、功能、网络、编程等方面各不相容，没有一个统一的标准，无法进行横向比较。下面提出在自动控制系统设计中对PLC选型的一些看法，可以在挑选PLC时作为参考。

可以通过以下几方面的比较，挑选到适合的产品。

这一点尤为重要。在自动控制系统设计之初，就应该对控制点数（数字量及模拟量）有一个准确的统计，这往往是选择PLC的首要条件，一般选择比控制点数多10%~30%的PLC。这有几方面的考虑：

1、可以弥补设计过程中遗漏的点；

2、能够保证在运行过程中个别点有故障时，可以有替代点；

3、将来增加点数的需要。

工作环境是PLC工作的硬性指标。自控系统将人们从繁忙的工作和恶劣的环境中解脱出来，就要求自控系统能够适应复杂的环境，诸如温度、湿度、噪音、信号屏蔽、工作电压等，各款PLC不尽相同。一定要选择适应实际工作环境的产品。

BALLUFF BES-516-325-E4-C-PU-03     BES516325E4CPU03

BALLUFF BES-516-325-E4-C-S-4-00.5     BES516325E4CS400

BALLUFF BES-516-325-E4-Y       PROXIMITY SENSOR BES516325E4Y

BALLUFF BES-516-325-E4-Y-3     BES516325E4Y3

BALLUFF BES-516-325-E4-Y-3    BES516325E4Y3

Balluff BES-516-325-E4-Y5 Inductive Proximity Sensor Series BES      

Balluff BES-516-325-E4-Y-PU-05 Proximity Sensor      

BALLUFF BES-516-325-E4-Y-PU-08    BES516325E4YPU08

Balluff BES516-325-E5-C-S4 Proximity Switch 10-30VDC

Balluff BES516325E5CS4, Inductive Proximity Sensor -      

BALLUFF BES-516-325-E5-R-05     BES516325E5R05

BALLUFF BES-516-325-E5-R-05   BES516325E5R05

BALLUFF BES-516-325-E5-R5     BES516325E5R5

BALLUFF BES-516-325-E5-R5   BES516325E5R5

BALLUFF BES516-325-G-E4-C-02     BES516325GE4C02

BALLUFF BES516-325-G-E4-C-02    BES516325GE4C02

BALLUFF BES-516-325-G-E4-Y-03     BES516325GE4Y03

BALLUFF BES-516-325-G-E4-Y-03    BES516325GE4Y03

BALLUFF BES-516-325-G-E4-Y-05     BES516325GE4Y05

BALLUFF BES-516-325-G-E5-Y-S-4   BES516325GE5YS4

Balluff BES516-325-G-S4-C, 150373, Bes 516-325-G-S4-C, BES516325GS4C #1328W

BALLUFF BES-516-325-S4-CW    BES516325S4CW

Balluff BES-516-325-S4-W Inductive Sensors

Balluff BES-516-325-S4-W Inductive Sensors 128500

BALLUFF BES-516-325-S4-W   BES516325S4W

Balluff BES-516-325-S4-Y5 BES516325S4Y5 Proximity Switch -       No Box

BALLUFF BES-516-325-S4-YL     BES516325S4YL

BALLUFF BES-516-325-SA-15    BES516325SA15

BALLUFF BES-516-325-SA-15   BES516325SA15

BALLUFF BES-516-325-SA-35-05     BES516325SA3505

BALLUFF BES-516-325-SA-56-03     BES516325SA5603

BALLUFF BES-516-325-SA-56-03    BES516325SA5603

BALLUFF BES-516-325-SA96-G-E5-C-S4     BES516325SA96GE5

Balluff BES516-325-SA96-G-S4-C Inductive Proximity Sensor 4mm 10-30VDC !       !

BALLUFF BES-516-325-S-CW     BES516325SCW

BALLUFF BES-516-326-AO-Z-5    BES516326AOZ5

BALLUFF BES-516-326-AO-Z-5   BES516326AOZ5

Balluff BES516-326-B0-C, BES516326B0C, 10-30VDC, Shipsameday #1616P

Balluff BES-516-326-B0-C5 Sensor BES516326B0C5

BALLUFF BES-516-326-BO-C    BES516326BOC

BALLUFF BES-516-326-BO-C-03    BES516326BOC03

BALLUFF BES-516-326-BO-C-05     BES516326BOC05

BALLUFF BES-516-326-BO-C-PU-05     BES516326BOCPU05

BALLUFF BES-516-326-DOL-PU    BES516326DOLPU

BALLUFF BES-516-326-E4-C-03     BES516326E4C03

BALLUFF BES-516-326-E4-C-03    BES516326E4C03

BALLUFF BES-516-326-E4-C-05    BES516326E4C05

BALLUFF BES-516-326-E4-Y-05     BES516326E4Y05

BALLUFF BES-516-326-E4-Y-05    BES516326E4Y05

BALLUFF BES-516-326-E4-Y-PU-03   BES516326E4YPU03

BALLUFF BES-516-326-E5-C-S4     BES516326E5CS4

BALLUFF BES-516-326-G-E4-Y-05     BES516326GE4Y05

BALLUFF BES-516-326-G-E5-Y-S-49     BES516326GE5YS49

BALLUFF BES-516-326-G-E5-Y-S-49    BES516326GE5YS49

Balluff BES516-326-G-E5-Y-S49 Proximity Switch !       !

BALLUFF BES-516-326-GS-4-C     BES516326GS4C

BALLUFF BES-516-326-GS-4-C    BES516326GS4C

BALLUFF BES-516-326-G-S4-H    BES516326GS4H

BALLUFF BES-516-326-G-S4-L   BES516326GS4L

BALLUFF BES-516-326-N-03-KIT    BES516326N03KIT

Balluff BES-516-326-S1-C Proximity Switch -       No Box

BALLUFF BES-516-326-S4-C PROXIMITY SENSOR      

BALLUFF BES-516-326-S4-CW   BES516326S4CW

BALLUFF BES-516-326-S4-L   BES516326S4L

BALLUFF BES-516-326-S4-Y   BES516326S4Y

BALLUFF BES-516-326-S-5-Z   BES516326S5Z

BALLUFF BES516326SA34 **NNB**

BALLUFF BES-516-326-SA96-G-E5-Y-S4 INDUCTIVE SENSOR 24VDC 130MA PNP,      

BALLUFF BES-516-326-SA96-G-E5-Y-S4 INDUCTIVE SENSOR 24VDC 130MA PNP,      *

BALLUFF BES-516-326-V-S-4     BES516326VS4

BALLUFF BES-516-327-AO-Y    BES516327AOY

BALLUFF BES-516-327-BO-C-05     BES516327BOC05

Balluff BES-516-327-E4-Y-05 Proximity Sensor 10-30vdc Sn 10mm BES516327E4Y05      

BALLUFF BES-516-327-E5-Y-S4 INDUCTIVE SENSOR *      OUT OF BOX*

BALLUFF BES-516-327-E5-Y-S4    BES516327E5YS4

BALLUFF BES-516-327-E5-Y-S4   BES516327E5YS4

BALLUFF BES-516-327-G-E5-Y-S 4 PROXIMITY SENSOR P/N 552282 15MM       IN PACKAGE

BALLUFF BES-516-327-G-S 4-H *     * PROXIMITY SWITCH

BALLUFF BES-516-327-G-S4-H    BES516327GS4H

BALLUFF BES-516-327-S4-C      BES516327S4C

BALLUFF BES-516-327-S4-C INDUCTIVE PROXIMITY SENSOR 10-30V 10MM       IN PACKAGE

balluff BES-516-327-S4-C inductive sensor

BALLUFF BES-516-327-S4-C     BES516327S4C

BALLUFF BES516-327-S-4-C PROXIMITY SWITCH *      IN FACTORY BAG*

Balluff BES516-327-S4-C, BES516327S4C ShipSameDay With 2-3 Days Shipping #1612A1

BALLUFF BES-516-327-S-4-CW     BES516327S4CW

BALLUFF BES-516-327-S-4-H     BES516327S4H

BALLUFF BES-516-329-BO-C-0    BES516329BOC0

BALLUFF BES-516-329-BO-C-03     BES516329BOC03

BALLUFF BES-516-329-BO-C-05     BES516329BOC05

BALLUFF BES-516-329-BO-C-05    BES516329BOC05

BALLUFF BES-516-329-E3R-03    BES516329E3R03

BALLUFF BES-516-329-G-E4-C-05     BES516329GE4C05

BALLUFF BES-516-329-GE-4Y    BES516329GE4Y

BALLUFF BES-516-329-G-E4-Y-PU-05     BES516329GE4YPU1

BALLUFF BES-516-329-G-E5-Y-S-4     BES516329GE5YS4

BALLUFF BES-516-335-AO-X-PU    BES516335AOXPU

BALLUFF BES-516-335-AO-X-PU   BES516335AOXPU

Balluff BES-516-343-E0-C-05 Sensor

BALLUFF BES-516-343-E0-C-PU 05 PROXIMITY SENSOR

BALLUFF BES516-343-E0-X-PU PROXIMITY SWITCH *      *

BALLUFF BES-516-343E3L   BES516343E3L

BALLUFF BES-516-343-E3-L-PU-05    BES516343E3LPU05

BALLUFF BES-516-343-E3-SP02     BES516343E3SP02

BALLUFF BES-516-343-E3-SP02    BES516343E3SP02

BALLUFF BES-516-343-E4-C   BES516343E4C

BALLUFF BES-516-343-E4-C-SP02     BES516343E4CSP02

Balluff BES-516-343-E4-C-SP04 Proximity Sensor

Balluff BES-516-343-E4-C-SP04 Proximity Sensor -       No Box

Balluff BES-516-343-E4-C-SP04 Proximity Sensor (Pack of 3) -       No Box

BALLUFF BES-516-343-E5-D-S-49   BES516343E5DS49

BALLUFF BES-516-343-EO-C-05     BES516343EOC05

BALLUFF BES516-343-EO-C-PU-05   BES516343EOCPU05

Balluff BES-516-343-G-E4C-03 8MM Proximity Sensor !       !

BALLUFF BES-516-343-G-E4-C-03 CABLE ***NIB***

BALLUFF BES516-343-G-E5-C-S49   BES516343GE5CS49

BALLUFF BES-516-343-S4-C PROXIMITY SWITCH *      OUT OF BOX*

BALLUFF BES-516-343-SA10-3     BES516343SA103

BALLUFF BES-516-343-SA16-C-PU-03     BES516343SA16CPU

BALLUFF BES-516-343-SA16-C-PU-03    BES516343SA16CPU

BALLUFF BES-516-343-SA-2   BES516343SA2

BALLUFF BES-516-345-M0-Z    BES516345M0Z

BALLUFF BES-516-345-M0-Z   BES516345M0Z

BALLUFF BES516-345-MO-C-05     BES516345MOC05

Balluff BES-516-345-MO-X5 Inductive Proximity Sensor 3 Wire NPN NO 10-30VDC NIB

BALLUFF BES-516-346-H0-Y INDUCTIVE SENSOR *      IN A BAG*

BALLUFF BES516-347-M0-C-S4-002   BES516347M0CS400

BALLUFF BES-516-347-MO-C-05 528632 PROXIMITY SENSOR      !!! !!

BALLUFF BES-516-347-MO-C-S-49     BES516347MOCS49

BALLUFF BES-516-347-MO-C-S-49    BES516347MOCS49

BALLUFF BES516347MOCS49PU.2     BES516347MOCS49P

BALLUFF BES-516-347-MO-K   BES516347MOK

Balluff BES-516-347-MO-Y-SP01 Remote Transmitter Sensor