Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
by Unknown User (null)
handshake
Handshake 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.
HASP
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
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HASP
Hardware Against Software Piracy (HASP) is a technology that allows us to provide a physical (USB) License Key (used with the HASP module) instead of the traditional 6 digit Ignition License Key. This allows users to quickly move a license from one computer to another.
historian
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
by Unknown User (null)
historian
Synonym(s):
high-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.
hot swap
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
by Unknown User (null)
hot swap
Synonym(s):
hot-swap,
hot-swapable
This term is used to indicate that changes made the modules in Ignition can be done without stopping Ignition.
HMI
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
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HMI
Human Machine Interface (HMI) is the user interface that allows people to interact with the machines and PLCs in their facility. Systems that monitor and control entire plants and provide historical and statistical data are often referred to as HMIs. The Vision module allows Ignition to act as an HMI by creating windows and launching clients to interact with your process.
HTML
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
by Unknown User (null)
HTML
HyperText Markup Language (HTML) is the standard markup language for creating web pages and web applications. HTML defines the structure, layout, and style of a web document by using tags and attributes. 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 ends with </BODY></HTML>. All the information you'd like to include in your Web page fits in between the <BODY> and </BODY> tags.
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.
HTTP
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
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HTTP
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.
Hardware Against Software Piracy
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
by Unknown User (null)
Hardware Against Software Piracy
See HASP.
Human Machine Interface
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
by Unknown User (null)
Human Machine Interface
See HMI.
HyperText Markup Language
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
by Unknown User (null)
HyperText Markup Language
See HTML.
HyperText Transfer Protocol
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
by Unknown User (null)
HyperText Transfer Protocol
See HTTP.
High-Speed SECS Message Services
Created Dec 29, 2020 (15:16)
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High-Speed SECS Message Services
See HSMS.
HSMS
Created Dec 29, 2020 (15:16)
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HSMS
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.
HSL
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
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HSL
HSL (hue, saturation, and lightness) settings used to adjust the way a color is displayed. Hue is a degree on the color wheel from 0 to 360. 0 is red, 120 is green, 240 is blue. Saturation is a percentage value; 0% means a shade of gray and 100% is the full color. Lightness is also a percentage; 0% is black, 100% is white. In Ignition, some component properties have HSL options, such as row highlighting in the Perspective Table component.
hue, saturation, and lightness
Created Dec 29, 2020 (15:16)
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by Unknown User (null)
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
by Unknown User (null)
HTTP Strict Transport Security
HTTP Strict Transport Security (HSTS) is a widely supported web security policy standard to protect visitors by ensuring that their browsers always connect to a website over HTTPS. HSTS exists to remove the need for the common, insecure practice of redirecting users from http:// to https:// URLs.
HSTS
Created Dec 29, 2020 (15:16)
by Unknown User (Anonymous User) , last modified Jun 18, 2021 (07:39)
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