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Archive for April, 2009

This program does electrical cable sizing, based on the most basic electrical laws.

If you are planning to do cable sizing for a real installation, check the results and make sure that you comply with all electrical regulations.
 
Theory
From Ohms law, the voltage drop in an electrical conductor is
V = I R
where
  I = Current, [...]

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Instructions:Generally you have two options for this. You can do this either with a CP343-1 IT or a different CP (e.g.: CP343-1) and use S7 communication or UDP communication. 

Here you should always use a CP343-1 IT (6GK7343-1GX20-0XE0) as communications processor, because it sets the time of the CPU via the SIMATIC procedure or via [...]

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Instructions:If multiple CPUs are linked with each other in a subnetwork, you parameterize the clock of one CPU as the master clock. When parameterizing the CPU you also specify the synchronization interval after which all the clocks in the subnetwork are automatically synchronized with the master clock. You call system function SFC48 “SNC_RTCB” in the [...]

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SCADA File Reference

Below is some of files for PLC, If you want download. Please Right Click on Link and Click SAVE Link As…

  21 Steps to Improve Cyber Security of SCADA Networks
  SCADA Systems
  IBM Internet Security Systems solutions for SCADA security
  SCADA Protocols SCADA Protocols
  Who is looking for your SCADA infrastructure?
  SCADA Security Scientific Symposium [...]

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Dalam dunia militer, senapan mesin Galling Gun dianggap sebagai pelopor senapan mesin pertama di dunia. Keganasan senjata pembunuh ini telah teruji pada saat perang saudara Amerika pada abad ke-18. Uniknya, orang yang menciptakan senjata mematikan ini bukan dari kalangan ilmuwan atau saintis, tetapi seorang dokter gigi [...]

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Introduction
InTouch 7.11 and later require an instance of Microsoft® SQL Server™ to record historical alarms and events using the Alarm DB Logger utility. Once the Alarm DB Logger Manager has been configured to connect with a valid instance of SQL [...]

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The SIDirect DAServer provides access to data within the Siemens S7 200, S7 300, and S7 400 PLC families through a standard EtherNet network interface card without requiring Siemens SimaticNet software. The SIDirect DAServer is capable of DDE, FastDDE, SuiteLink™, or OPC connections to Windows® client [...]

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Introduction
This technote will go over the steps necessary to setup communication between the new DASSIDirect DAServer and a Siemens S7-200 PLC.
The TechNote consists of 4 parts:
Configure the S7-200 PLC

Configure the DAServer
Test the Communication
Memory Areas in the S7-200 PLCs and How to Access Them Via DASSIDirect

Configure the S7-200 PLC

Start Step7-Micro/Win 32. Create a new [...]

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