354
ifm
Device Manual SmartSPS AC14 with EtherNet/IP interface (AC1421, AC1422), Firmware 3.1.2
2015-11-30
Glossary of Terms
I
I&M
I&M =
I
dentification
&
M
aintenance
chapter
I&M data
Profibus Profile Guidelines Part 1:
Identification & Maintenance Functions
>
I/O adapter
Decentralised device in an EtherNet/IP
network (e.g. AC1421/AC1422)
>
I/O scanner
Coupling element for the connection of
decentralised devices to an EtherNet/IP
controller.
>
ID
ID =
Id
entifier
Name to differentiate the devices / participants
connected to a system or the message
packets transmitted between the participants.
>
IEC 61131
Standard: Basics of programmable logic
controllers
• Part 1: General information
• Part 2: Production equipment requirements
and tests
• Part 3: Programming languages
• Part 5: Communication
• Part 7: Fuzzy Control Programming
>
Implicit Messaging
Cyclic data exchange between
→ I/O scanner
and
→ I/O adapter based on the UDP/IP
communication protocol. Works based on the
Producer-Consumer model, i.e. both
communication nodes know the structure of
the data to be exchanged before data
transmission starts.
>
Instructions
Superordinate word for one of the following
terms:
installation instructions, data sheet, user
information, operating instructions, device
manual, installation information, online help,
system manual, programming manual, etc.
>
Intended use
Use of a product in accordance with the
information provided in the instructions for use.
>
IO-Link
Point-to-point connection between 2 devices.
The following transmission is possible:
- binary signals or
- greater data fields for parameter setting.
>
IP address
IP =
I
nternet
P
rotocol.
The IP address is a number which is
necessary to clearly identify an internet
participant. For the sake of clarity the number
is written in 4 decimal values, e.g.
127.215.205.156.
>
J
Jitter
Jitter means a slight fluctuation in accuracy in
the transmission cycle when transmitting digital
signals. More generally, jitter in transmission
technology means an abrupt and undesired
change of the signal characteristics.
>
L
LAS
L
ist of
A
ctive
→
S
laves.
In this slave list the AS-i master enters the
slaves detected as active for this
→master.
>
LDS
L
ist of
D
etected
→
S
laves.
In this slave list the AS-i master enters the
slaves detected as present for this
→master.
>
LED
LED =
L
ight
E
mitting
D
iode.
Light emitting diode, also called luminescent
diode, an electronic element of high coloured
luminosity at small volume with negligible
power loss.
>
LFS
L
ist of
F
ailed
S
laves = list of
→slaves with
configuration errors.
