Endress+Hauser Cerabar M - 11.2 Response of Outputs to Errors

Cerabar M, Deltabar M, Deltapilot M Troubleshooting
Endress+Hauser 225
11.1.1 Onsite display error messages
If the device detects a defect in the onsite display during initialization, the following error
messages can be displayed:
11.2 Response of outputs to errors
The device makes a distinction between the message types F (failure) and M, S, C (warning).
 See the following table and  ä 221, Section 11.1 "Messages".
11.2.1 Analog Input Block
If the Analog Input Block receives an input value or simulation value with the status BAD,
the Analog Input Block continues working with the failsafe mode defined by means of the
Fsafe type/FSAFE_TYPE
1
parameter.
The following options are available by means of the Fsafe type/FSAFE_TYPE parameter:
•Last Good Value
The last valid value is used for further processing with the status UNCERTAIN.
• Fail SafeValue
The value specified by means of the Fsafe value/FSAFE_VALUE
1
parameter is used for
further processing with the status UNCERTAIN.
•Wrong Value
The current value is used for further processing with the status BAD.
Factory setting:
• Fsafe type/FSAFE_TYPE: FsafeValue
•Fsafe value/FSAFE_VALUE: 0
The failsafe mode is also activated if the "Out of service" option was selected by means of the
Block Mode/MODE_BLK parameter, "Target" element.
Message Measure
Initialization, VU Electr. Defect
A110
Exchange onsite display.
Initialization, VU Electr. Defect
A114
Initialization, VU Electr. Defect
A281
Initialization, VU Checksum Err.
A110
Initialization, VU Checksum Err.
A112
Initialization, VU Checksum Err.
A171
Output F (failure) M, S, C (warning)
FOUNDATION Fieldbus
(FF configuration program/FieldCare)
The process variable in question is transmitted
with the status BAD.
Device continues measuring. The process variable in
question is transmitted with the status UNCERTAIN.
Onsite display – The measured value and message are
displayed alternately
– Measured value display: F-symbol is
permanently displayed.
– The measured value and message are displayed
alternately
– Measured value display: M, S, or C-symbol flashes.
1 These parameters are not available by means of FieldCare.