Endress+Hauser Proline Prowirl 72 - Selecting the Operating Mode; Alarm Detection and Processing; Accessing the Manufacturer-Specific; Parameters

11 Operation via FOUNDATION Fieldbus Proline Prowirl 72 FOUNDATION Fieldbus
86 Endress + Hauser
11.3.2 Selecting the operating mode
The operating mode is set by means of the MODE_BLK parameter group (see Page 87).
The Transducer Blocks support the following operating modes:
• AUTO (automatic mode)
• OOS (out of service)
!
Note!
• The OOS block status mode is also displayed by means of the BLOCK_ERR parameter
(Page 88). In the OOS operating mode, all write parameters can be accessed without
restriction if write protection has not been enabled and the Access Code is entered.
• If problems occur during the configuration of the function blocks Page 47, Section 9. 1.
11.3.3 Alarm detection and processing
The Transducer Blocks do not generate any process alarms. The status of the process variables is
evaluated in the downstream Analog Input Function Blocks. If the Analog Input Function Block
does not receive an input value that can be evaluated from the Transducer Blocks "Flow" or
"Totalizer", then a process alarm is generated. This process alarm is displayed in the BLOCK_ERR
parameter of the Analog Input Function Block.
The BLOCK_ERR parameter (Transducer Block "Diagnosis"Page 88) displays the device error
that produced an input value that could not be evaluated and thus triggered the process alarm in
the Analog Input Function Block. In addition, the active device error is displayed via the Transducer
Block "Diagnosis" in the "Diagnosis - Actual System Condition" parameter (Page 112).
More information on eliminating errors can be found on Page 46.
11.3.4 Accessing the manufacturer-specific parameters
To access the manufacturer-specific parameters, the following requirements must be met:
1. Hardware write protection must be disabled (Page 35).
2. The correct code must be entered by means of the corresponding Transducer Block in the 
"Un-/Locking - Access Code" parameter.
11.3.5 Selecting the units
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 Page 116. The
unit selected in the Transducer Blocks is only used for the local display, low flow cut off and for
simulation.