TTF300 FIELD-MOUNT TEMPERATURE TRANSMITTER | OI/TTF300-EN REV. I 23
Output behavior (behavior of the
current output)
Current output assignment to
be set (Tools: “HART Mapping”)
Redundancy configuration to be
set (Tools: “Parameter setting”)
Diagnostic message to be set
according to NAMUR NE 107
(Switchover for defective
sensor)
Output signal follows sensor 1
1 defective: Switching
seamlessly (with smooth transition)
to sensor
2. Output signal remains
Sensor 1 and sensor 2 defective:
output of set alarm current
Redundancy, S1 not available:
“Maintenance Required”
Redundancy, S2 not available:
“Mai
ntenance Required”
Sensor drift detected:
“Maintenance Required”
Increased safety (use of
drift detection)
Output signal follows sensor 1
Sensor 1 or sensor 2 defective:
output of set alarm current
Sensor drift detected: output of set
alarm current
Redundancy, S1 not available:
“Failure”
Redundancy, S2 not available:
“Failure”
Sensor drift detected: “Failure”
Increased accuracy
(through averaging)
Output signal follows the
arithmetic mean value of
sensor 1
Sensor 1 or sensor 2 defective:
output of set alarm current
Redundancy, S1 not available:
“Failure”
Redundancy, S2 not available:
“Failure”
Sensor drift detected:
“Maintenance Required”
Corresponding diagnostic messages are available via DTM, EDD, FDI package (FIM) or on the LCD display.
For the meaning of the diagnostic messages according to NAMUR 107, see Error messages in the HART® LCD display on page 48. The
error messages and options for error correction are listed in Possible error messages – HART® devices from SW-Rev.: 03.00 on
page 85.
Note
Only the current output behavior and redundancy configuration can be set for the three redundancy behaviors via the HMI LCD
display with configuration function. The diagnostic messages according to NAMUR NE 107 can only be changed over in the tools and
remain in the default setting ex works (“Maintenance Required”).
To Next Page
Loading...
