Endress+Hauser Proline Prowirl 72 - Page 48

9 Troubleshooting Proline Prowirl 72 FOUNDATION Fieldbus
48 Endress + Hauser
– Parameters cannot be changed
or
– No write access to parameters
1. Parameters that only show values or settings cannot be changed!
2. The hardware write protection is enabled. Disable the write protection
Page 35
! Note!
You can check whether the hardware write protection is enabled or disabled via the
WRITE_LOCK parameter in the Resource Block:
LOCKED = write protection enabled
UNLOCKED = write protection disabled
3. The block operating mode is set to the wrong mode. Certain parameters can only
be changed in the OOS (out of service) mode or the MAN (manual) mode  Set
the operating mode of the block to the desired mode  MODE_BLK parameter
group.
4. The value entered is outside the specified input range for the parameter in
question:
 Enter a suitable value
 Increase input range if necessary
5. Transducer Blocks: the programming level is not enabled Enable by entering
the code in the "Un-/Locking - Access Code" parameter or by means of the
Service Code in the Service parameters.
Transducer Block:
The manufacturer-specific
parameters are not visible.
The device description file (Device Description, DD) has not yet been loaded to the
host system or the configuration program? Download the file to the configuration
system.
For information on where to obtain the DD see Page 33
! Note!
Make sure you are using the correct system files for integrating field devices into the
host system. Relevant version information can be queried with Prowirl 72 by means
of the following functions/parameters:
FOUNDATION Fieldbus interface:
– Resource Block  DEV_REV parameter
– Resource Block DD_REV parameter
Example:
Display in the DEV_REV parameter  01
Display in the DD_REV parameter  01
Device description file (DD) required 0101.sym / 0101.ffo
Analog Input Function Block:
The output value OUT is not
updated despite a valid "GOOD"
status.
The simulation is active  Deactivate the simulation by means of the SIMULATE
parameter group.
▼
Other errors (without error message)
Some other error has occurred. Diagnosis and remedial measures Seite 54