Kontrollblokk

Kontrollblokk is a Norwegian term used to describe a block of data or a modular unit that contains control information used to manage operations within a system. The exact meaning varies by domain, but the common idea is that the block coordinates resources, timing, and state to ensure correct functioning.

Etymologically, the word combines kontroll (control) with blokk (block). In practice, a kontrollblokk acts as a self-contained unit that aggregates essential control data and often references other resources or data structures needed to carry out a operation or convey control information to other parts of a system.

In computing and information technology, a control block is a data structure that holds control information for managing a resource or process. Examples include a process control block in operating systems, a file control block in file systems, and various protocol or communication control blocks. Typical fields may include identifiers, state indicators, pointers to related structures, timestamps, and error or status codes. These blocks enable orderly scheduling, access control, and coordination across components.

In automation, electronics, and embedded systems, kontrollblokker group control signals, timers, and status indicators used by programmable logic controllers (PLCs) and other controllers to coordinate actions and safeguard operations. In railway signaling and other safety-critical domains, the term often denotes a controlled segment or the logic that ensures safe traffic flow; specifics depend on national standards and signaling technology.

Related concepts include process control block, file control block, and protocol control block.