Endress+Hauser Proline Promass A 100 PROFINET Operating Instructions Manual page 94

Diagnostics and troubleshooting
94
Displaying the measured value status
If modules with input data (e.g. Analog Input module, Discrete Input module, Totalizer
module, Heartbeat module) are configured for cyclic data transmission, the measured
value status is coded as per PROFINET PA Profile 4 Specification and transmitted along
with the measured value to the PROFINET Controller via the status byte. The status byte is
split into three segments: Quality, Quality Substatus and Limits.
Quality
 14 Structure of the status byte
The content of the status byte depends on the configured failure mode in the individual
function block. Depending on which failure mode has been configured, status information
in accordance with PROFINET PA Profile Specification 4 is transmitted to the the
PROFINET controller via the status byte status information. The two bits for the limits
always have the value 0.
Supported status information
Status
BAD - Maintenance alarm
BAD - Process related
BAD - Function check
UNCERTAIN - Initial value
UNCERTAIN - Maintenance demanded
UNCERTAIN - Process related
GOOD - OK
GOOD - Maintenance demanded
GOOD - Function check
Determining the measured value status and device status via the diagnostic behavior
When the diagnostic behavior is assigned, this also changes the measured value status and
device status for the diagnostic information. The measured value status and device status
depend on the choice of diagnostic behavior and on the group in which the diagnostic
information is located.
Proline Promass A 100 PROFINET
Measuring value
Quality Substatus
Coding (hex)
0x24
0x28
0x3C
0x4F
0x68
0x78
0x80
0xA8
0xBC
Coding
(hex)
Byte 5
Limits
A0032228-EN
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