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ifm
Device Manual SmartSPS AC14 with EtherNet/IP interface (AC1421, AC1422), Firmware 3.1.2
2015-11-30
Glossary of Terms
Inclusion phase: After this, the AS-i master
goes into the inclusion phase, during which
it sends a command to a free slave
address to detect new slaves.
>
ASIsafe
The name for 'Safety at Work' used by
Siemens.
>
Assembly Instance
Assembly Instances are parameters of a
logical connection (
→Connection). The
describe which data at which length are to be
transmitted between the communication
nodes.
The following Assembly Instances exist:
Input
Output
Configuration
In a logical connection each of these Assembly
Instances can only be used
once
. The
Assembly Instance type
Configuration
must
only be used once in an Assembly Instance for
one and the same communication node.
>
B
Baud
Baud, abbrev.: Bd = unit for the data
transmission speed. Do not confuse baud with
"bits per second" (bps, bits/s). Baud indicates
the number of changes of state (steps, cycles)
per second over a transmission length. But it is
not defined how many bits per step are
transmitted. The name baud can be traced
back to the French inventor J. M. Baudot
whose code was used for telex machines.
1 MBd = 1024 x 1024 Bd = 1 048 576 Bd
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Burst errors
Burst errors are
→faults occurring depending
on others. The class indicates the maximum
permissible number of burst errors:
Class 1 = high protection,
Class 2 = lower protection etc.
>
Bus
Serial data transmission of several participants
on the same cable.
>
C
CCDI
CCDI =
C
TT
C
onfiguration
D
ata
I
mage =
current CTT configuration
Configuration of 7.4 and 7.5 slaves currently
determined by the AS-i master:
- Manufacturer ID,
- Vendor ID,
- Device ID,
- Device Group ID.
>
CDI
CDI =
C
onfiguration
D
ata
I
mage = current AS-i
configuration
The configuration of the connected AS-i slaves
determined by the AS-i master:
LDS and AS-i profiles (IO, ID, ID1, ID2)
>
CIP
CIP =
C
ommon
I
ndustrial
P
rotocol
Object-oriented description of a
communication protocol for industrial
requirements. Presently used for the fieldbus
systems DeviceNet, ControlNet and
EtherNet/IP.
>
CODESYS
CODESYS
®
is a registered trademark of 3S
–
Smart Software Solutions GmbH, Germany.
'CODESYS for Automation Alliance' associates
companies of the automation industry whose
hardware devices are all programmed with the
widely used IEC 61131-3 development tool
CODESYS
®
.
Homepage
>
Connection
Describes the logical connection between 2
application objects.
>
ControllerE
Master in the AS-i bus system of the
generation E.
>
CTT
e.g. CTT2 = Combined Transaction Type 2
→
Combined transaction – Use of analogue
channels in the gateway depending on the slave
profile
(
>