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SIMATIC ET 200 System Benefits -
Increased availability
Hot Swapping
In the event of a fault, electronic modules are easily replaced during
operation with the equipment live (hot swapping). The station remains
functional, and the plant therefore remains available - there is no need for
costly shutting down and starting up of the plant. While the components are
being replaced, the wiring remains intact. Coding of the modules prevents
mistakes when replacing them.
Redundancy
To increase plant availability, the SIMATIC system offers a system- wide
redundancy concept. ET 200 I/O devices are connected with two interface
modules to the two PROFIBUS lines of a high-availability automation system.
If the active system fails, the standby system takes over the functions
immediately so that standstill can be avoided.
Configuration in Run (CiR)
Modifications or expansions are also required during operation of a plant
(section), such as implementation of additional sensors or actuators,
reparameterization of I/O modules (e.g. choosing of other interrupt limits).
Possible applications are non-stop requirements, that is, in continuous
processes that cannot be shut down or whose production cannot be
interrupted: process plants or manufacturing plants with high restart costs.
Changes to the hardware configuration in RUN are possible when distributed
I/O is connected to the S7-400
- Stations can be added and removed,
e.g. for configuring a new process line
- I/O modules can be added and removed,
e.g. for implementing additional sensors
- I/O modules can be reparameterized,
e.g. for replacement parts Hinzufügen und
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Brochure "SIMATIC ET 200 for Distributed Automation Solutions" 