User Manual







Sepasoft - MES Modules
Cirrus Link - MQTT Modules


Inductive University
Ignition Demo Project
Knowledge Base Articles
IA Support
SDK Documentation
SDK Examples


Ignition 8
Ignition 7.9
Ignition 7.8

Deprecated Pages

Skip to end of metadata
Go to start of metadata

(U) 12 terms
2 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

UDP Created Oct 8, 2020 (12:24)

User Datagram Protocol (UDP) is an alternate communications protocol to Transmission Control Protocol (TCP) and is used primarily for establishing low-latency and loss-tolerating connections between applications on the Internet. UDP is used by apps to deliver a faster stream of information by eliminating error-checking.

UDT Created Oct 8, 2020 (12:24)

  • complex tag

A User Defined Type (UDT) is a complex type of Tag in Ignition that can be configured to easily control multiple instances. This type can hold multiple other basic types of tags (int, string, etc) as well as other UDTs. Changes made to the parent UDT will automatically be propagated to all children.

Uniform Resource Locator Created Oct 8, 2020 (12:24)

See URL.

Universal Resource Identifier Created Oct 8, 2020 (12:24)

A Universal Resource Identifier (URI) is a string of characters that unambiguously identifies a particular resource. This is similar to a URL, but has the ability to hold more complex data than a URL can. The URI generic syntax consists of a hierarchical sequence of five components: URI = scheme:[//authority]path[?query][#fragment] In Ignition, URIs are used by some Identity Providers. URLs are subsets of URIs. See also URL.

Universal Serial Bus Created Oct 8, 2020 (12:24)

See USB.

URI Created Oct 8, 2020 (12:24)

See Universal Resource Identifier.

URL Created Oct 8, 2020 (12:24)

Uniform Resource Locator (URL) stands for Uniform Resource Locator. It is used to specify an address on the World Wide Web. URLs have the following format:


URLs most commonly refer to web pages (http), but they are also used for file transfer (ftp), email (mailto), database access, and other applications.

USB Created Oct 8, 2020 (12:24)

Universal Serial Bus (USB) is a connection standard for many different kinds of devices. USB ports and cables are used to connect hardware such as printers, keyboards, mice, flash drives, and cameras to computers of all kinds. There are several versions of USB: USB-A is the most common and USB-C is the newest standard.

User Datagram Protocol Created Oct 8, 2020 (12:24)

See UDP.

User Defined Type Created Oct 8, 2020 (12:24)

See UDT.

User Source Created Oct 8, 2020 (12:24)

A User Source in Ignition is a group of users with their associated roles. Ignition uses a role-based security system, ie: each user may be assigned to various roles. Security policies are then defined in terms of these roles, rather than defined for specific users. This allows users to be reassigned, removed, and added without affecting the logic of the security policy. An Ignition Gateway may have many different user sources defined, each governing the security of different aspects of the Gateway. For example, logging into the Gateway configuration web interface might be governed by one user source, while the security for a project is governed by another.

(U) 12 terms
2 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

UTC Created Oct 8, 2020 (12:24)

See Coordinated Universal Time.