豆花DIY

鹽與豆花，看似八竿子打不著關係的兩個東西，實際上卻息息相關。

先來說說怎麼做豆花好了。首先你需要的是無糖豆漿，(用磨豆漿機)。

然後你做點處理，豆漿就可以變成豆花了。如果你撈起來瀝乾加壓去水，還可以變成豆腐哩！

Wireshark with EtherCAT debug

EtherCAT

EtherCAT is an open, high performance Ethernet-based fieldbus system. The development goal of EtherCAT was to apply Ethernet to automation applications which require short data update times (also called cycle times) with low communication jitter (for synchronization purposes) and low hardware costs. The EtherCAT protocol is optimised for process data and is transported directly within the standard IEEE 802.3 Ethernet frame using Ethertype 0x88a4. It may consist of several sub-datagrams, each serving a particular memory area of the logical process images that can be up to 4 gigabytes in size. The data sequence is independent of the physical order of the nodes in the network; addressing can be in any order. Broadcast, multicast and communication between slaves are possible. If IP routing is required, the EtherCAT protocol can be inserted into UDP/IP or TCP/IP datagrams. This also enables any control with Ethernet protocol stack to address EtherCAT systems.

Build EtherLAB master kernel

http://taste.tuxfamily.org/wiki/index.php?title=Build_EtherLAB_master_kernel

Etherlab

EtherLAB developed an EtherCAT master software that runs as a Linux kernel module. As a result, it is far faster than user-space implementation. However, building the Ethercat Master implementation with a Linux kernel requires to build it using the appropriate kernel version. As we build it with PREEMPT-RT, we shall have the appropriate version for the kernel, the PREEMPT-RT patch and Etherlab. It seems that the 2.6.33 release of the kernel meet these requirements.

IEC 61800-7

Die IEC 61800-7 ist eine internationale Norm für eine universelle Schnittstelle für einen Antrieb mit variabler Drehzahl mit dem Titel "Generic interface and use of profiles for power drive systems". Sie wird von der International Electrotechnical Commission (IEC) herausgegeben. In der Norm wird diese abstrakte, universelle Schnittstelle auf vier unterschiedliche Antriebsprofile abgebildet und diese werden wiederum auf unterschiedliche Kommunikationsprofile von Feldbussen undindustriellem Ethernet abgebildet.

Win 7停止支援倒數!!!

微軟今年4月停止支援Windows XP，成功帶動企業換機潮，讓個人電腦（PC）市場今年看到回春的跡象。不知是否食髓知味，近日再傳微軟將在明年1月13日前，停止對Windows 7的主流支援服務，延伸支援則到2020年。

Using WinPcap in C# (Packet capture)

WinPcap is a very useful tool which can enables users to capture windows packets. On their website they offer a development pack but only for C/C++ programmers. So this is why I decided to write my own (simple) class for capturing packets in C# importing the wpcap.dll . Before showing the code, you must know that in order for your program to run as it should in Windows Vista/7 you must run it as administrator, otherwise it won’t even find the (network) devices.

I

EtherCAT Vendor ID List

List of assigned and valid EtherCAT Vendor IDs sorted by Vendor ID.
This page was last updated on July 2, 2014.

Vendor ID ETG Member Department Predecessor Department
0x00000001 EtherCAT Technology Group (used for examples in documentation)
0x00000002 Beckhoff Automation GmbH Product Management

LinuxCNC with EtherCAT

1)EtherCAT realtime HAL driver

Overview

This driver tries to provide an easy-to-expand framework for the connection of LinuxCNC to EtherCAT devices. Some of the often used Beckhoff devices like digital and analog I/O, encoder input and pulse train output are already supported just as the [Stöber] MDS5000 series of servo drives. The driver is based on [IgH's EtherCAT master] and builds a glue layer like the etherlab component. It consists of an userspace component for configuration and a RT HAL module for the data processing.

The config module reads in and parses a xml config file and provides a prepared form of configuration data via shared memory to the RT part. The RT module is organised in a global part that is common to all submodules and a .c and .h file for each supported (class off) hardware device.

Since this driver is sill under development you can find the code [here]. Feel free to test or review the code and send me suggestions and hints. There is a discussion thread about this driver in the [forum].

自動化通訊協定列表

以下是工業自動化、智能建築及輸配電自動化會用到的通訊協定。

製程自動化通訊協定

• 基金會總線（FOUNDATION fieldbus）

• Profibus：由PROFIBUS國際組織所維護

• PROFINET IO

• CC-Link：由CLPA（CC-Link Partner Association）所維護

• 通用工業協定（Common Industrial Protocol，簡稱CIP）：是DeviceNet、CompoNet、ControlNet及EtherNet/IP共同的應用層協定。

• 控制區域網路（Control Area Network，簡稱CAN）：是許多通訊協定（如CANopen及DeviceNet）的底層協定。

• ControlNet（ControlNet）：一種CIP的實現方式，由艾倫-布拉德利公司（Allen-Bradley）公司所設計。

• DeviceNet：一種CIP的實現方式，由Allen-Bradley公司所設計。

• EtherNet/IP：IP代表工業通訊協定（Industrial Protocol），是一種CIP的實現方式，由洛克威爾自動化公司所設計。

• Ethernet Powerlink（Ethernet Powerlink）：是一種開放式的通訊協定，由Ethernet POWERLINK標準組織（Ethernet POWERLINK Standardization Group，簡稱EPSG）維護。

• EtherCAT：是德國的Beckhoff公司推動的乙太網通訊協定。

• Interbus：是鳳凰城電力開發的串列通訊協定，目前已是PROFINET IO的一部份。

• HART Protocol（HART Protocol）

• Modbus RTU 或 Modbus ASCII

• Modbus/TCP

• Modbus Plus

• Modbus PEMEX

• EGD（Ethernet Global Data）：GE Fanuc（GE Fanuc）GE Fanuc為 PLC開發的通訊協定。

• FINS（FINS）：歐姆龍（Omron）開發，可以在包括乙太網的幾種網路上使用的通訊協定。

• Host Link：歐姆龍開發的串列通訊協定。

• MECHATROLINK：由安川電機開發的開放式通訊協定。

• MelsecNet/10三菱電機支援的通訊協定。

• SERCOS介面（SERCOS interface）：運動控制及輸入輸出的硬即時開放式通訊協定。

• SERCOS III（SERCOS III）：SERCOS介面的乙太網版本。
• Sinec H1（Sinec H1）：西門子公司支持的通訊協定
• PieP：一個開放式的網路協定

• BSAP（Bristol Standard Asynchronous Protocol）：由Bristol Babcock Inc發展的通訊協定。
• Symotion（Symotion）：基於乙太網的實時運動控制匯流排。

Nuclear Fusor

引用:http://makezine.com/

Nuclear fusion is the process of squeezing two atoms together so tightly that their nuclei fuse, creating a heavier atom and releasing a blast of energy. Fusion creates the inferno inside the sun — and the hydrogen bomb — but no one has yet harnessed its enormous power for peaceful uses.

They’ve tried, however, often with skepticism. In 1989, physicists Martin Fleischmann and Stanley Pons announced they’d achieved “cold fusion” of hydrogen into helium at room temperature, only to face withering scorn when others failed to replicate their results.

Luckily, DIY nuclear engineers can achieve honest-to-goodness “hot fusion” right at home by making a Farnsworth-Hirsch fusion reactor, or fusor for short.

http://makezine.com/projects/make-36-boards/nuclear-fusor/