Terminology	Description
IoT	Internet of Things
IIoT	Industrial Internet of Things
OPC UA	Open Platform Communications United Architecture
UA	United Architecture
FSM	Finite State Machine
HLFSM	High-Level State Machine
API	Application programming interface
HW	Hardware
SCADA	Supervisory control and data acquisition
MES	Manufacturing execution system
IN	Input
OUT	Output
MQTT	Message Queue Telemetry Transport
BPMN	Business Process Model and Notation
UART	Universal asynchronous receiver-transmitter
SPI	Serial Peripheral Interface
1Wire	One Wire
I2C	Inter-Integrated Circuit
CAN	Controller Area Network
SDIO	Secure Digital Input Output
HTTP	Hypertext transfer protocol
AMQP	Advanced Message Queuing Protocol
CoAP	Constrained Application Protocol
DDS	The Data Distribution Service
S7comm	S7 Communication
MODBUS	The data communications protocol
PROFINET	Industry technical standard for data communication over Industrial Ethernet
PROFIBUS	Fieldbus communication in automation technology
CPU	Central processing unit
PLC	Programmable Logic Controller