The isNet DiagM PA module is a Profibus Master with a PA physical layer interface. It allows direct connection of Profibus PA field devices without needing a DP/PA converter. The module can serve as a Fieldbus power supply for the PA slaves or be connected to an existing and already powered PA segment as an additional master.
In combination with the isNet Lite the module can be used as a gateway between Profinet and Profibus PA or as a Modbus-TCP to Profibus PA converter. In parallel to process data exchange, the gateway allows access to the parameters of the PA slave devices via FDT or OPC. Furthermore, the module contains some diagnostic functionality, like a protocol monitor that can run simultaneously to the master to record data traffic for failure analysis, data logging, or other purposes.
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