IFM Ecomat 300 AC1355, Дополнительное руководство по устройству

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Terms, abbreviations
15-1
15 Terms, abbreviations
A/B slave →
Slave with an A or B being appended to its address number and which may
therefore be present twice on the → master.
Address This is the "name" of the participant in the bus. All participants need a clearly
defined address so that the signals can be exchanged without problem.
AS-i AS-i =
A
ctuator
S
ensor
I
nterface
Bus system for the first binary field level.
Acyclic data transfer The acyclic services are performed parallel in time and in addition to the cyclic
process data transfer at a low priority. By means of this, the time influence on
high priority cyclic process data transfer is supposed to be kept to a minimum.
Baud Baud, abbrev.: Bd = unit of measurement for the data transfer 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
Operating system Basic program in the device, establishes the connection between the hardware
of the device and the user software.
Bus Serial data transfer of several participants on the same cable.
CAN CAN =
C
ontroller
A
rea
N
etwork
CAN is a priority-controlled fieldbus system for larger data volumes. It is
available in different variants, e.g. CANopen, CAN in Automation (CiA) or
→
DeviceNet. CAN can be used e.g. as a supplier for AS-i over larger
distances. Corresponding → gateways are available.
CoDeSys 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®.
CoDeSys® is a registered trademark of 3S – Smart Software Solutions GmbH,
Germany.
Controllere Master in the AS-i bus system of the generation E
DeviceNet
Fieldbus system for larger data volumes based on
→
CAN technology, requires
special cables, complex connection technology. Can be used e.g. as a
supplier for AS-i over greater distances. Corresponding
→
gateways are
available.
DHCP DHCP =
D
ynamic
H
ost
C
onfiguration
P
rotocol = protocol for the dynamic
configuration by the → host
DHCP is a protocol which offers the dynamic configuration of IP addresses
and thus coherent information. The protocol supports the further use of IP-
addresses which are only available in a limited number by a centralised
management of the address assignment.
The participant logs on to a server with this service when it is switched on in a
network for the first time. The server assigns a local free
→
IP address to the
participant.