/REFERENCE & LIMITS

Glossary

Short definitions for the words you'll meet in Edmund and on the plant floor, one sentence each.

Everyone

This page is a quick reference. For how these pieces fit together, see Core concepts; for who can do what, see Roles & permissions.

Edmund terms

Term	Meaning
Citation	The link from a sentence in an answer back to the exact source it came from, so you can check it.
Data source	A live connection, such as a read-only database, that Edmund queries for current values.
Document	An uploaded file such as a manual, drawing or report that Edmund indexes and can cite.
Indexed	The status shown when Edmund has read a document and can use it in answers.
Knowledge source	Anything Edmund reads to answer from, including documents, data sources, the maintenance journal and PLC programs.
Maintenance journal	Short entries describing a problem and how it was solved, so past fixes can inform new answers.
No text	The status shown when a file has no readable text yet, often a scan that needs OCR.
Organization	Your company's whole Edmund account, holding every project, user and setting.
Product tour	The short in-app walkthrough that points out the main parts of Edmund the first time you use them.
Project	A workspace for one line, plant or machine that keeps its own knowledge and answers separate from others.
QR code	A scannable code, often posted on a machine, that opens the right project in Edmund on your phone.
Role	What a person is allowed to do, from administrator down to user.
Suggestion	A follow-up question Edmund offers after an answer to help you go deeper or narrow things down.
Team	A group of people an administrator uses to control which projects its members can reach.

Term	Meaning
2FA	Two-factor authentication, a second sign-in check on top of your password.
Allen-Bradley	A Rockwell Automation brand of controllers and drives widely used in industry.
EPLAN	Software for electrical schematics and control-cabinet documentation.
HMI	The human-machine interface, the screen an operator uses to watch and control a machine.
IEC 61131-3	The international standard that defines the common PLC programming languages.
MTTR	Mean time to repair, the average time it takes to restore a machine after a failure.
OCR	Optical character recognition, the step that turns a scanned image into readable text.
PLC	A programmable logic controller, the industrial computer that runs a machine's control logic.
Root cause	The underlying reason a fault happened, rather than the symptom you first noticed.
SCL	A structured, text-based programming language for PLC logic.
SQL	The query language Edmund uses to read values from a connected database.
Tag	A named value in a control system, such as a sensor reading or a setpoint.
TIA Portal	Siemens' engineering software for programming and configuring their controllers.

Tip

If a term you need isn't here, it's likely explained on Core concepts or in the page for that feature.