IO-Link Masterv2.01.01
 
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Abbreviations and Definitions
AL

Application Layer

C/Q

connection for communication (C) or switching (Q) signal (SIO)

DI

Digital Input

DL

Data Link Layer

DO

Digital Output

I/O

Input/Output

IOL

IO-Link

IOLD

IO-Link Device

IOLM

IO-Link Master

OD

On-request Data

PD

Process Data

PL

Physical Layer

PLC

Programmable Logic Controller

SDCI

Single-drop digital communication interface for small sensors and actuators (SDCI) is the alternative name for the IO-Link-Interface used in the standard IEC61131-9 as IO-Link is a trademark.

SIO

Standard Input Output (digital switching mode according to IEC 61131-2)

SM

System Management

SMI

Standardized Master Interface

UART

Universal Asynchronous Receiver Transmitter

WURQ
Wake-Up Request Pulse