Siemens SIMATIC IOT2050 Operating Instructions Manual page 69

Interface
● Physical interconnection (cable) of hardware elements such as PLCs, PCs, programming
devices, printers or monitors.
● Interface for interactive software applications.
LAN
Local Area Network: LAN is a local network that consists of a group of computers and other
devices that are distributed across a relatively restricted range and are linked with
communication cables. The devices connected to a LAN are called nodes. The purpose of
networks is the mutual use of files, printers or other resources.
Module
Modules are plug-in units for PLCs, programming devices or PCs. They are available as
local modules, expansion modules, interfaces or mass storage (Mass storage module).
Motherboard
The motherboard is the core of the computer. Here, data are processed and stored, and
interfaces and device I/Os are controlled and managed.
Operating system
Generic term which describes all functions for controlling and monitoring user program
execution, distribution of system resources to the user programs and the operating mode in
cooperation with the hardware (for example, Windows 7 Ultimate).
Reset
Hardware reset: Reset/restart of the PC using a button/switch.
SIMATIC IOT2050
Operating Instructions, 03/2020, A5E39456816-AA
Glossary
69