CiDRA Use of Foundation Fieldbus Protocol with SONARtrac Transmitters - Manual (Page 9)

3
CONFIGURATION & CONNECTION
3.1 Configuration
There are no configuration settings necessary on the passive sonar
transmitter for FOUNDATION Fieldbus or Profibus PA. The protocol itself
enables devices to be automatically assigned addresses, etc. The
transmitter firmware forces communication to be set to the required baud
rate to work with the Softing FBK Fieldbus or Profibus interface hardware.
Loading an INI file cannot change these settings.
3.2 Connection
If so equipped, the transmitter hardware includes a two-conductor
connector designated for Fieldbus / Profibus. The connections are not
polarity sensitive.
Fieldbus / Profibus
terminals
Figure 1 Fieldbus / Profibus Terminals on Connector Board
Transmitters that support Fieldbus / Profibus will not support RS-232/RS-
485 communications or Modbus on the COM+/COM- terminal
connections as these signals are used for the Fieldbus interface and are
not available as an external communications interface.
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