Siemens offers the scalable Simatic ET 200SP I/O, which is a highly flexible, modular system. It can exchange I/O data from the connected I/O modules with a higher-level programmable logic controller (PLC) via interface modules. The compact design includes modular configuration, with up to 64 modules, up to to 16 channels per module, permanent wiring, support for hot swapping (module replacement without tools in RUN) and flexible connection. The ET 200SP also features flexible fieldbus connection via BusAdapter (RJ45, M12, FastConnect, plastic or glass fiber-optic cables single-mode or multimode) and provides wiring accessibility with the spring release and measuring tap next to the conductor opening.
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