Glossary
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Glossary
DCP
Discovery and basic configuration protocol: Protocol for identifying
and configuring devices, which is defined within the PROFINET
specification
DHCP
Dynamic host configuration protocol: protocol simplifying the
configuration of IP networks by automatically assigning IP addresses
GSDML
Generic Station Description Markup Language
IODD
IO Device Description: Describes sensors and actuators with an IO-
Link communication interface
IO-Link
Communication system to connect intelligent sensors and actuators
to an automation system standardized in the IEC 61131-9 under the
name Single-drop digital communication interface for small sensors
and actuators (SDCI).
IO-Link wireless
Extension of the IO-Link base technology for IO-Link wireless
communication according to the IO-Link Wireless System
Specification
IP
Internet Protocol: Belongs to the TCP/IP family of protocols and is
defined in RFC791 (available on http://www.ietf.org/rfc/rfc791.txt). It is
based on layer 3 of the ISO/OSI 7 layer model of networking and is a
connectionless protocol, i. e. you do not need to open a connection to
a computer before sending an IP data packet to it. Therefore, IP is not
able to guarantee that the IP data packets really arrive at the
recipient. On IP level, neither the correctness of data nor the
consistence and completeness are checked. IP defines special
addressing mechanisms; see IP address.
IP addresse
Identifies a device or a computer within an IP-based network and is
defined in the Internet Protocol Version 4 (IPv4) as a 32-bit number.
For ease of notation the address is usually divided into four 8-bit
numbers represented in decimal notation and separated by points:
a.b.c.d. Each letter stands for an integer value between 0 and 255,
e.g. 192.168.30.16. However, not all combinations are allowed, some
are reserved for special purposes. The IP address 0.0.0.0 is defined
as invalid.
ISDU
Indexed Service Data Unit: Used for acyclic transmission of
parameters (IO-Link wireless communication)
MAC-ID
Media Access Control-ID: unique (physical) Ethernet address of the
device on delivery, defined as 48 bit number; for ease of notation it is
divided into six 8 bit numbers which are represented in hexadecimal
notation and separated by “minus”-signs (-): A-B-C-D-E-F (A-B-C-D-
E-F each are integer values between 0 and 0XFF=255),
Example:00-02-A2-20-91-18
MQTT
Message Queuing Telemetry Transport: Publish-subscribe based
"light weight" M2M (machine to machine) messaging protocol for use
on top of the TCP/IP protocol and for telemetry data transmission with
a very low footprint. As protocol of the Internet of Things (IoT), it has
been standardized by OASIS (Organization for the Advancement of
Structured Information Standards) since 2013. Additional features:
NFD-3090-PNS-IOLM\W | Hardware, installation and commissioning
DOC201101UM03EN | Revision 3 | English | 2022-02 | Released | Public
© Hilscher 2020 - 2022
