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Endress+Hauser iTEMP TMT 165 FOUNDATION Fieldbus Betriebsanleitung Seite 132

Temperature transmitter
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11 Appendix
Index
Parameter
16
L_TYPE
35
LO_ALM
30
LO_LIM
36
LO_LO_ALM
132
Analogue Input Function Block
Write access with
operating mode
(MODE_BLK)
MAN
Selects the type of linearisation for the input value.
Options:
Uninitialised
Direct
With this setting the measured value from the Transducer Block (input value)
avoids the linearisation function and is looped unchanged with the same unit
by the Analogue Input Function Block. With this option the scaling and unit of
the parameter groups XD_SCALE and OUT_SCALE must be identical. If this
is not the case, the function block switches to operating mode OOS.
PV =
Indirect (linear conversion)
With this setting the measured value from the Transducer Block (input value)
is rescaled linearly via the input scaling XD_SCALE to the desired output
range OUT_SCALE.
PV =
Indirect Square Root
With this setting the measured value from the Transducer Block (input value)
is rescaled via the parameter group XD_SCALE and recalculated using a
square root function. It is then rescaled again to the desired output range via
the parameter group OUT_SCALE.
PV =
Factory default:
AUTO - MAN - OOS
Alarm status display for the lower pre alarm limit value (LO_LIM), including
details of the time of the alarm (date, time) and the value that triggered the
alarm.
2
• In addition the active block alarm can be acknowledged in this parameter
group.
• If the option of the alarm has not been enabled in the parameter
ACK_OPTION, the alarm can only be acknowledged via this parameter
AUTO - MAN - OOS
Entry of the alarm limit value for the lower pre alarm (LO_ALM). If the output
value OUT is below this limit value then the alarm status parameter LO_ALM
is output.
User input:
Factory default:
Read only
Alarm status display for the lower alarm limit value (LO_LO_LIM), including
details of the time of the alarm (date, time) and the value that triggered the
alarm.
2
• In addition the active block alarm can be acknowledged in this parameter
group.
• If the option of the alarm has not been enabled in the parameter
ACK_OPTION, the alarm can only be acknowledged via this parameter.
FOUNDATION Fieldbus temperature transmitter
Description
input value
(FIELD_VAL / 100) x (OUT_SCALE 100% -
OUT_SCALE 0%) - OUT_SCALE 0%
(√(FIELD_VAL / 100)) x (OUT_SCALE 100%
-OUT_SCALE 0%) - OUT_SCALE 0%
Direct
Note!
Range and unit of OUT_SCALE
- INF
Note!
Endress+Hauser

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