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Reference Manual
00809-0100-4021, Rev FB
August 2011
Rosemount 3144P
4-12
F
OUNDA
TION
Fieldbus
LCD TRANSDUCER
BLOCK
The LCD display connects directly to the 3144P electronics F
OUNDATION
fieldbus output board. The meter indicates output and abbreviated diagnostic
messages.
The first line of five characters displays the sensor being measured.
If the measurement is in error, “Error” appears on the first line. The second
line indicates if the device or the sensor is causing the error.
Each parameter configured for display will appear on the LCD for a brief
period before the next parameter is displayed. If the status of the parameter
goes bad, the LCD will also cycle diagnostics following the displayed variable:
Custom Meter
Configuration
Parameter #1 (Sensor 1) is factory configured to display the Primary Variable
(temperature) from the LCD Transducer Block. When shipping with dual
sensors, Sensor 2 will be configured not to display. To change the
configuration of Parameter #1, #2, or to configure additional parameters use
the configuration parameters below. The LCD Transducer Block can be
configured to sequence four different process variables as long as the
parameters are sourced from a function block scheduled to execute within the
3144P temperature transmitter. If a function block is scheduled in the 3144P
that links a process variable from another device on the segment, that
process variable can be displayed on the LCD.
DISPLAY_PARAM_SEL
The DISPLAY_PARAM_SEL specifies how many process variables will be
displayed, where up to four display parameters can be selected.
BLK_TAG_#
(1)
Enter the Block Tag of the function block containing the parameter to be
displayed. The default function block tags from the factory are:
TRANSDUCER
AI 1400, 1500, 1600
PID 1700 and 1800
ISEL 1900
CHAR 2000
ARTH 2100
Output Splitter OSPL 2200
BLK_TYPE_#
Enter the Block Type of the function block containing the parameter to be
displayed. This parameter is generally selected by a drop-down menu with a
list of possible function block types. (e.g. Transducer, PID, AI, etc.)
Terminal (Body) Temperature Beyond
Operating Limits
PRT readings have gone below 2% of lower
range or above 6% of upper range of PRT.
(These ranges are calculated and are not the
actual range of the PRT which is a PT100 A385)
Sensor Degraded
For RTDs, this is excessive EMF detected.
For Thermocouples, the loop resistance has
drifted beyond the user-configured threshold
limit.
Calibration Error
The user trim has failed due to excessive
correction or sensor failure during the trim
method
STB.SENSOR_DETAILED_STATUS
Description
(1)
# represents the specified parameter number.
Aotewell Ltd
www.aotewell.com
Industry Automation
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