K3N-CPU

K3N-CPU

K3N-CPU

K3N-CPU

K3N-CPU

K3N-CPU

K3N-CPU

监控循环时间的目的是避免"死循环"，避免程序不能反复不断地重复执行。办法是用""（Watching dog）。只要循环**时，它可报警，或作相应处理.
外设服务是让PLC可接受编程器对它的操作，或通过接口向输出设备如打印机输出数据.
通讯处理是实现PLC与PLC，或PLC与计算机，或PLC与其它工业控制装置或智能部件间信息交换的。这也是增强PLC控制能力的需要。
也就是说，实际的PLC工作过程总是：公共处理--I/O刷新--运行用户程序--再公共处理--……反复不停地重复着。

KLOCKNER MOELLER T44-3-2008-65/i/SVB-NA *NEW*


Klockner Moeller Breaker NZM74-40


KLOCKNER MOELLER TO-4-6502-65/I *NEW*


1-KLOCKNER MOELLER STAINLESS STEEL DISCONNECT-30A 600V


Klockner Moeller NZM 6b-160 125hp 125A 600VAC Warranty Fast Shipping




KLOCKNER MOELLER DIL1M 600v


KLOCKNER MOELLER NZM7A-40N-NA CIRCUIT BREAKER


Klockner Moller Protected Motor Starter PKZ2-6-PKZ2


LOT OF 5 KLOCKNER MOELLER 20DIL *NEW*


Klockner Moeller FAZ-B13 Magnetic Circuit Breaker Lot of 9


Klockner-Moeller Motor Contactor DIL0M 


Klockner Moeller Relay DIL ET 11-30 DILET11-30 Lot 5@


Klockner Moeller 63 Amp Circuit Breaker with Auxiliary & Shunt Trip NZMH4-63-CNA


KLOCKNER MOELLER ENCLOSURE DUTY NEMA TYPE 12 CT BOX


Klockner Moeller NZM 6b-160 CNA 150A Disconnect Switch


KLOCKNER MOELLER DILR-40 230V /50HZ /240V 60HZ NIB


Klockner Moeller 2 Position Selection Button M22W QTY 8


Klockner Moeller ZM-40-PKZ2 Manual Motor Protector Overload Trip Block PKZ-2




Klockner Moeller PKZM0-10 Amps *New* pkzmo10 pkzmo-10


Klockner-Moeller P3-63 Disconnect Switch




Klockner Moeller Relay Assembly PKZM1-0,4 & PKZM1-4




KLOCKNER MOELLER AT0-11-1-ZB NSPP AT0111ZB


KLOCKNER MOELLER MFD-AC-R16 NSFP MFDACR16


KLOCKNER MOELLER DILR-40-230V/50HZ/240V60HZ NSFP DILR40230V50HZ24


KLOCKNER MOELLER 220/240VAC COIL 55A CONTACTOR DIL1AM W/ 11S DIL M


Klockner Moeller Safety Interlock ATO-02-24DMT-ZBZ/X (7901)


KLOCKNER MOELLER S5I07/RSY AUXILIARY STATIC RELAY ***NIB***


Klockner Moeller AT0-11-24-DFT/F *NIB* AT01124DFTF


KLOCKNER MOELLER SAFTY LIMIT SWITCH LSS02120AFTZBZX NIB


KLOCKNER-MOELLE?R NZM8-200 CIRCUIT BREAKER NZM 8-200


 AS-IS see the description


Klockner Moeller Z1-24 16-24a 24 amp Motor Overload Relay NEW




KLOCKNER MOELLER UVHIPKZ2240V50HZ NSFP UVHIPKZ2240V50HZ


KLOCKNER MOELLER FAK-R/KC11/I USPP FAKRKC11I


KLOCKNER MOELLER STZ0.5-220-24 USPP STZ0522024


KLOCKNER MOELLER Z00-0.24 NSFP Z00024


KLOCKNER MOELLER PKZM0-1 USPP PKZM01


KLOCKNER MOELLER TO-4-5060-65/I USPP TO4506065I


KLOCKNER MOELLER DILR53D-G-24VDC NSPP DILR53DG24VDC


Klockner Moeller DIL1M Contactor DIL 1M Starter Relay 120v NEW


KLOCKNER MOELLER P2-30/F-C13-CNA/I NSPP P230FC13CNAI


KLOCKNER MOELLER P1-32/EA-SVB USPP P132EASVB


KLOCKNER MOELLER DIL0M115V60HZ NSPP DIL0M115V60HZ


KLOCKNER MOELLER EBE-200 USPP EBE200


KLOCKNER MOELLER PKZM0-6.3 NSFP PKZM063


KLOCKNER MOELLER V-DIL-6 NSFP VDIL6