Industrial Communication for Automation and Drives - Induteq

Process or field communication
PROFIBUS DP/PA
Lateral data communication on the
PROFIBUS DP
Lateral communication on the PROFIBUS
DP makes communication even faster and
easier. The master sends a message
containing setpoint values to the first
slave. The slave responds by sending its
actual values in a broadcast message,
which is heard by all the other nodes on
the bus. Recipients are mainly intelligent
devices with their own data preprocessing
capability (distributed intelligence), such
as drives or distributed PLCs. Lateral
communication requires no additional
message.
Master/slave and lateral communication
relationships can be combined as needed.
Isochrone mode (equidistance) can
be set to a µs! Ideal for closed-loop
control!
A precisely reproducible bus cycle time
is a requirement for sophisticated closedloop
control, positioning and motion
control applications. Every deviation can
result in instable processes. Reproducibility
with jitter of < 1 µs satisfies the
very strictest requirements, e.g. for
applications involving synchronism.
Drives, CPUs and modular slaves are
synchronized to a common clock pulse,
not only making it possible to perform
motion control tasks, but also enabling
precise execution of distributed generalpurpose
closed-loop control and
measuring tasks.
Acyclic data interchange
In addition to the cyclic exchange of user
data, PROFIBUS DP also enables acyclic
messages. This makes it possible to send
event-controlled data to the slave, e.g.
drives can be easily assigned new
parameters dynamically while the plant
or machine is in operation.
SIMATIC S7
Power PG
Notebook
ET 200X
SIMATIC C7
ET 200M
Field PG
ET 200S
ET 200L
SINAMICS
SIMOVERT
MASTER-
DRIVES
MOBY ASM
MICROMASTER
SINUMERIK
840 Di
SIMOTION C/P/D
SIMOREG
12