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Problems when configuring function blocks
Transducer Blocks:
The operating mode cannot be
set to AUTO.
Check whether the operating mode of the Resource Block is set to
AUTO → MODE_BLK parameter group / TARGET parameter.
Handling Precautions:
Faulty parameterization
f
Make sure that the unit selected suits the process variable chosen
in the SENSOR_TYPE parameter. Otherwise the BLOCK_ERROR
parameter displays the “Block Configuration Error” error message.
In this state, the operating mode cannot be set to AUTO.
Analog Input function block:
The operating mode cannot be
set to AUTO.
There can be several reasons for this. Check the following points one after
another:
1. Check whether the operating mode of the Analog Input function block is set
to AUTO: MODE_BLK parameter group / TARGET parameter. If not and
the mode cannot be changed to AUTO, first check the following points.
2. Make sure that the CHANNEL parameter (select process variable) has
already been configured in the Analog Input function block (→ page 27).
The option CHANNEL = 0 (uninitialized) is not valid.
3. Make sure that the XD_SCALE parameter group (input range, unit) has
already been configured in the Analog Input function block.
4. Make sure that the L_TYPE parameter (linearization type) has already been
configured in the Analog Input function block (→ page 27).
5. Check whether the operating mode of the Resource Block is set to AUTO.
MODE_BLK parameter group / TARGET parameter.
6. Make sure that the function blocks are correctly connected together and that
this system configuration has been sent to the fieldbus users, → page 27.
Analog Input function block:
Although the operating mode
is set to AUTO, the status of
the AI output value OUT is
“BAD” or “UNCERTAIN”.
Check whether an error is pending in the Transducer Block “Advanced
Diagnostic”:
Transducer Block “Adv. Diagnostic”, “Actual Status Category” and “Actual
Status Number” parameters. → page 38
Parameters cannot be
changed or
No write access to
parameters.
1. Parameters that only show values or settings cannot be changed!
2. Hardware write protection is enabled → Disable the write protection, → page
Handling Precautions:
Write protection
f
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.