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Glossary navigation bar

Glossary term
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gloTermhandshake
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termSyns

This refers to a way for two systems to signal each other without direct communication. For example, a PLC might set a bit in one of its tags to True, then a Transaction Group will see that tag value as a trigger to run. When finished, the Transaction Group will set the value back to False to inform the PLC.


Glossary term
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gloTermHASP
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termSyns

Hardware Against Software Piracy Hardware Against Software Piracy (HASP) is a technology that allows us to provide a physical (USB) CD Key key (used with the HASP module) instead of the traditional 6 digit Ignition CD Keykey. This allows users to quickly move a license from one computer to another.


Glossary term
termLabels
gloTermhistorian
termAbbrs
termSynshigh-performance historian

A system that stores historical data, usually in a database. Ignition's high-performance historian uses a few tricks to store data in a relational database (SQL Server, MySQL, etc.) and to only store the data you need in such a way that it is very fast to retrieve.


Glossary term
gloTermhot swap
termSynshot-swap, hot-swapable

This term is used to indicate that changes made the modules in Ignition can be done without stopping Ignition.


Glossary term
gloTermHMI
termSynsInterface

Human Machine Interface Human Machine Interface (HMI) is the user interface that allows people to interact with the machines and PLCs in their facility. Ignition's Vision module allows you to use it as an HMI by launching a client. Systems that monitor and control entire plants and provide historical and statistical data are often referred to as HMIsHMIs. The Vision module allows Ignition to act as an HMI by creating windows and launching clients to interact with your process.


Glossary term
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gloTermHTML
 HyperText Markup Language (HTML) is the authoring language used to create documents on the World Wide Web

HyperText Markup Language (HTML) is the standard markup language for creating web pages and web applications. HTML defines the structure, layout, and

layout

style of a

Web

web document by using

a variety of 

tags

 and 

and attributes.

The correct structure for an HTML document starts with 

HTML tags are surrounded by angle brackets, for example: <tagname>content goes here...</tagname>.

An HTML document structure starts with <HTML><HEAD>(enter here what document is about)<BODY>

 and

and ends

with 

with </BODY></HTML>. All the information you'd like to include in your Web page fits in between

the 

the <BODY>

 and 

and </BODY>

 tags

tags.

- webopedia

Hypertext refers to the fact that the document contains links that allow the reader to jump to other places in the document or to another document altogether.

HTML is commonly used in the Vision module to change the font or add line breaks in buttons and label components.


Glossary term
gloTermHTTP

HyperText Transfer Protocol HyperText Transfer Protocol (HTTP) is the protocol for moving information across the Internet. All webpage addresses begin with "http://" or "https://" (for a secure connection) but most new browsers hide this from you. We say Ignition uses HTTP to communicate between the Clients and the Gateway. This just means that Ignition is using an existing, proven technology to transfer its information throughout the network.


Glossary term
termLabels
gloTermHardware Against Software Piracy.
termAbbrs
termSyns

See HASP.


Glossary term
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gloTermHuman Machine Interface.
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termSyns

See HMI.


Glossary term
termLabels
gloTermHyperText Markup Language.
termAbbrs
termSyns

See HTML.


Glossary term
termLabels
gloTermHyperText Transfer Protocol.
termAbbrs
termSyns

See HTTP.

Glossary navigation bar

Glossary term
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gloTermHSMS
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termSyns

The High-Speed SECS Message Services (HSMS) protocol is transport protocol for communication between computers in semiconductor factories. HSMS defines a TCP/IP based Ethernet connection and is intended as a high-speed alternative to the simple SECS-I protocol. See also SECS/GEM.


Glossary term
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gloTermHigh-Speed SECS Message Services
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termSyns

See (HSMS).