Endress+Hauser iTEMP TMT85, Руководство по эксплуатации

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iTEMP TMT85 Diagnostics and troubleshooting
Hauser 39
9.2 Status messages
The device displays warnings or alarms as status messages. If errors occur during
commissioning or measuring operation, these errors are displayed immediately. Errors are
displayed in the configuration program via the parameter in the Physical Block or on the
attached display. A distinction is made here between the following 4 status categories:
Status category Description Error category
F Fault detected ('Failure') ALARM
M Maintenance required
WARNING C Device is in the service mode (check)
S Specifications not observed ('Out of specification')
WARNING error category:
With "M", "C" and "S" status messages, the device tries to continue measuring (uncertain
measurement!). If a display unit is attached, the display alternates between the status and
the primary measured value indicated by the relevant letter plus the defined error number.
ALARM error category:
The device does not continue measuring with the "F" status message. If a display unit is
attached, the display alternates between the status message and "- - - -" (no valid measured
value available). Depending on the setting of the Fail Safe Type parameter (FSAFE_TYPE),
the last valid measured value, the incorrect measured value or the value configured under
Fail Safe Value (FSAFE_VALUE) is transmitted via the fieldbus with the status "BAD" or
"UNCERTAIN" for the measured value. The fault state is displayed in the form of the letter
"F" plus a defined number.
In both instances, the system outputs the sensor that generates the status, e.g. "C1", "C2". If
the name of a sensor is not displayed, the status message does not refer to a sensor but
refers to the device itself.
Abbreviations for output variables:
• SV1 = Secondary value 1 = Sensor value 1 in Temperature Transducer Block 1 = Sensor
value 2 in Temperature Transducer Block 2
• SV2 = Secondary value 2 = Sensor value 2 in Temperature Transducer Block 1 = Sensor
value 1 in Temperature Transducer Block 2
• PV1 = Primary value 1
• PV2 = Primary value 2
• RJ1 = Reference junction 1
• RJ2 = Reference junction 2