of a network. Evaluations, diagnostics, and modifications
are thus possible over long distances. Monitoring and
evaluation is possible without STEP 7; all you need is a
Web browser. Make sure that you take appropriate
measures (e.g. limiting network access, using firewalls)
to protect the CPU from being compromisedTrace functionality supports you in troubleshooting and/or
optimizing the user program.
You record device tags and evaluate the recordings with
the trace and logic analyzer function. Tags are, for
example, drive parameters or system and user tags of a
CPU.
The device saves the recordings. You can read out and
permanently save the recordings with the configuration
system (ES), if required. The trace and logic analyzer
function is therefore suitable for monitoring highly dynamic
processes.
The trace record can also be displayed through the Web
serverWith OPC UA, you can exchange data via an open and
manufacturer-neutral communication protocol. The CPU
can act as an OPC UA DA server. The CPU acting as the
OPC UA server can communicate with OPC UA clients.
The OPC UA Companion Specification allows methods
to be specified uniformly and independently of the
manufacturer. Using these specified methods, you can
easily integrate devices from various manufacturers into
your plants and production processesYou can use configuration control to operate different
real hardware configurations with a configured maximum
configuration of the hardware. This means that, in series
machine manufacturing in particular, you have the option
of operating/configuring different configuration variants of
a machine with a single project.
RT prioritizes PROFINET IO telegrams over standard
telegrams. This ensures the required determinism in the
automation technology. In this process the data is transferred
via prioritized Ethernet telegramsA reserved bandwidth within the send clock is available
for IRT data. The reserved bandwidth ensures that the
IRT data can be transmitted in time-synchronized intervals,
unaffected by other high network loading
(e.g. TCP/ communication or additional real time communication).
Update times with maximum determinism
can be realized through IRT. Isochronous
applications are possible with IRT.The Isochronous mode system property acquires measured
values and process data and processes the signals
in a fixed system clock. Isochronous mode thus contributes
to high control quality and hence to greater manufacturing
precision. Isochronous mode reduces possible
fluctuations of the process reaction times to a minimum.
Time-assured processing makes higher machine cycles
possible.
MRP
(Media Redundancy
Protocol)
It is possible to establish redundant networks via the
Media Redundancy Protocol. Redundant transmission
links (ring topology) ensure that an alternative communication
path is made available if a transmission link fails.
The PROFINET devices that are part of this redundant
network form an MRP domain.
RT operation is possible with the use of MRP.
MRPD
(Media Redundancy
with Planned Duplication)
The advantage of the MRP extension MRPD is that, in
the event of a failure of a device or a line in the ring, all