ProfiMessage master and slave devices can be equipped with two identical or differing I/O modules. A single master device can be connected with up to 20 slave devices of similar casing designs.
Data exchange between master and slaves takes place via a real time expansion bus using robust dual-wire technology. Slave devices can be decentrally located and managed from a single master device.
Nine different I/O modules are available for ProfiMessage. Each master or slave device can be equipped with two either identical or differing I/O modules.
For processing only field bus signals, master devices can be supplied without any I/O modules. ProfiMessage then functions as a PLC data logger for process fault detection and diagnostics.
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