6 Commissioning Proline Prowirl 72 FOUNDATION Fieldbus
40 Endress + Hauser
! Note!
– Please note that device parameter modifications are only possible once a valid enabling code
has been entered in the "Un-/Locking - Access Code" parameter.
– The selection of system units in the Transducer Blocks does not have any effect on the
desired units, which are to be transmitted via the FOUNDATION Fieldbus interface. This
setting is made separately via the corresponding AI-Block in the XD_SCALE parameter group
(see Configuring the "Analog Input Function Blocks" below). The unit selected in the
Transducer Blocks is only used for the local display, low flow cut off and for simulation.
Configuring the "Analog Input Function Blocks"
Prowirl 72 has two Analog Input Function Blocks which can be assigned to the different process
variables as desired. The following section describes an example for Analog Input Function Block 1
(base index 1000).
13. Enter the required name for the Analog Input Function Block (optional). Factory setting:
ANALOG_INPUT_1_ xxxxxxxxxxx
14. Open Analog Input Function Block 1.
15. Set the operating mode in the MODE_BLK parameter group (TARGET parameter) to OOS, i.e.
the block is out of service.
16. Use the CHANNEL parameter to select the process variable which should be used as the input
value for the function block algorithm (scaling and limit value monitoring functions). The
following settings are possible:
–CHANNEL = 1 Calc. mass flow
–CHANNEL = 2 Volume flow
–CHANNEL = 3 Corr. volume flow
–CHANNEL = 7 Totalizer
17. In the XD_SCALE parameter group, select the desired engineering unit that is to be transmitted
via the FOUNDATION Fieldbus interface as well as the block input range (measuring range of
the flow application) for the process variable in question (see next example).
" Caution!
Make sure that the engineering unit selected suits the measured variable of the process variable
chosen. Otherwise, the BLOCK_ERROR parameter displays the "Block Configuration Error"
error message and the operating mode of the block cannot be set to AUTO.
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