INNIS21

描述

公司所属的A．B(Allen＆Bradly)公司、GE-Fanuc公司，德国的西门子(Siemens)公司和法国的施耐德(Schneider)自动化公司，这几家公司控制着全世界80%以上的PLC市场，它们的系列产品有其技术广度和深度，从微型PLC到有上万个I／O(输入，输出)点的大型PLC应有尽有。

随着科学技术的发展，PLC在工业控制中的应用越来越广泛。PLC控制系统的可靠性直接影响到工业企业的安全生产和经济运行，系统的抗干扰能力是关系到整个系统可靠运行的关键。自动化系统中所使用的各种类型PLC，有的是集中安装在控制室，有的是安装在生产现场和各电机设备上，它们大多处在强电电路和强电设备所形成的恶劣电磁环境中。要提高PLC控制系统可靠性，一方面要求PLC生产厂家提高设备的抗干扰能力；另一方面，要求工程设计、安装施工和使用维护中引起高度重视，多方配合才能完善解决问题，有效地增强系统的抗干扰性能。

二、电磁干扰源及对系统的干扰

1干扰源及干扰一般分类

SIEMENS 6FX1190-1AF00 RAM MEMORY BOARD

SIEMENS PLC BOARD MODULE GFG4042-0AA70

Siemens Driver Board 6SA8252-0BD23 for 6SA8923-8EB40

Siemens PC612 B1200-C965 Board

SIEMENS 6FX1127-3AA00 MEMORY BOARD *NEW*

Siemens C79040-A310-C32​-02-86 Circuit Board NEW Surplus

SIEMENS 00321734 SERVO AMPLIFIER PC-BOARD dp1-AXIS

SIEMENS 00321735 SERVO AMPLIFIER PC-BOARD Z1-AXIS

Siemens S26261-D624-V2-​10 Board

SIEMENS 00341421 PC BOARD FOR HEAD AND PROCESSOR BOARD

Siemens 820G CNC Control Circuit Board 6FX1128-1BA00

Siemens Circuit Board 6FX1115-0AA01 _6FX1115-0AA01 6FX1

Siemens CNC Circuit Board Card 6FX1126-1AA03 6FX 1126

Siemens CNC Circuit Board Card 6FX1121-2BB02 6FX 1121

Siemens Simatic CNC Circuit Board Module #6ES5444-3AA11

Siemens 6DC1020-8CC Simadyn Drive Control Board

Siemens Circuit Board A1-108-100-511 ISQ6

Siemens Allis Module PC Board 6DC5003-BAC Simadyn NOS

Siemens C8451-A26-A5-3 Circuit Board C8451A26A53 NEW

Siemens CNC PCB Circuit Board Module PCB 6ES5445 3AA12

Siemens PCB Boards G34924-W1022 & G34924-W1021 086632

Siemens W30810-Q2474-B4 Hicom TMDN Board Card

Siemens CNC I/O Board Module 6FC3984-3RA ___ 6FC 3984

Siemens C8451-A26-A12-1 Circuit Board C8451A26A121

Siemens 6EC1 001-0A Simatic Logic Board #22829

SIEMENS DIGITAL OUTPUT MODULE CIRCUIT BOARD P# 6ES544..

Siemens Acramatic 850 3-533-0321G PCB RAM Board

Siemens Acramatic 850 3-533-0765G PCB Board

Siemens Acramatic 850 3-533-0733G PCB Board

SIEMENS SMT SERVO AMPLIFIER TBS200/15Y-02 PC-BOARD 200V

Siemens Circuit Board 03 831-A _ 548 221 9101 _ 03831-A

SIEMENS 6ES5 444-3AA11 CNC CIRCUIT BOARD

SIEMENS 6RB2000-0GB01 SERVO DRIVE SUPPLY CNC BOARD

SIEMENS 6RB2000-0GB01 SERVO DRIVE SUPPLY CNC BOARD

SIEMENS 6RB2000-0NB00 CNC BOARD

Siemens D19 Board P/N:8856718 NEW

SIEMENS KSP-A361 C8451-A45-A50-4 AUT5 MCH AXIS BOARD

SIEMENS CIRCUIT BOARD A1-116-100-516 ACTB-416-200-00​5

SIEMENS Simovert Board 6SE7090-0XX84-0​FF0 profibus

SIEMENS PYROTRONICS ZNX-3 BOARD NEW FOR XL3 SYSTEMS

SIEMENS 6FX1122-1AA01 COUPLING MODULE BOARD

SIEMENS DRIVE MODULE BOARD 6RB2000-0NF01

SIEMENS 6FX1120-3BA00 CNC CIRCUIT MODULE BOARD ~ Used

Siemens W30810-Q2233-B4 Hicom SIUX Board Card

SIEMENS 6SE7090-0XX84-0​FF0 MASTERDRIVES COMM BOARD

Siemens Simatic 6ES5946-3UA21 Module Circuit Board

Siemens A1103100532 Circuit Board Thyristor Tripler NOS

Siemens C8451-A44-A20 Circuit Board C8451A44A20 NEW

Siemens 820G Ram Card Circuit Board 6FC3984-4BM

Siemens 820G Ram Card Circuit Board 6FX1844-1BX04-1​G

Siemens Circuit Board Cat# 6FX1125-1AA01 Used

SIEMENS 6SC6120-0FE00 POWER BOARD

SIEMENS 6SC6120-0FE00 POWER BOARD

SIEMENS 6SC6120-0FE00 POWER BOARD

SIEMENS 6SC6130-0FE00 SERVO DRIVE POWER BOARD

SIEMENS 6SC6130-0FE00 SERVO DRIVE POWER BOARD