Mai Block; Lcd Transducer Block - Emerson Rosemount 3051S Series Reference Manual

Reference Manual
00809-0200-4801, Rev DA
5.8

MAI Block

Symptom
Mode will
not leave
OOS
5.9

LCD Transducer Block

This section describes error conditions found in the LCD Transducer Block. Read
determine the appropriate corrective action.
Self-test procedure
The SELF_TEST parameter in the Resource Block will test LCD display segments. When running, the
segments of the display should light up for about five seconds.
If your host system supports methods refer to your host documentation on how to run the "Self Test"
method. If host system does not support methods, then run test manually following the steps below.
1. Put Resource Block into OOS (Out of Service).
2. Go to the parameter called "SELF_TEST" and write the value Self test (0x2).
3. Observe the LCD display screen when you are doing this. All of the segments should light up.
4. Put the Resource Block back into AUTO.
Table 5-10. LCD Transducer Block BLOCK_ERR Messages
Condition name and description
Other
Out of Service: The actual mode is out of service.
Symptom
LCD displays "DSPLY#INVLID."
Read BLOCK_ERR and if its "BLOCK
CONFIGURATION", perform
recommended action.
Bar Graph and AI.OUT readings do
not match
"3051" is displayed or not all
values are displayed
Display reads "OOS"
Troubleshooting
Possible causes Corrective action
Target mode not set Set target mode to something other than OOS.
BLOCK_ERR will show the configuration error bit set. Before the block is
Configuration error allowed out of OOS, the CHANNEL must be set to 11 for "All ADB-SPM
Outputs".
The actual mode of the Resource Block is OOS. See Resource Block
Resource block
Diagnostics for corrective action.
Block is not scheduled and therefore cannot execute to go to Target
Schedule Mode. Typically, BLOCK_ERR will show "Power-Up" for all blocks that are
not scheduled. Schedule the block to execute.
Possible causes
One or more of the display parameters
are not configured properly.
The OUT_SCALE of the AI Block is not
configured properly.
The LCD display block parameter
"DISPLAY_PARAMETER_SELECT is not
properly configured.
The resource and/or LCD Transducer
Block are OOS.
Troubleshooting
October 2016
Table 5-10 and to
Recommended action
See
"LCD Transducer Block" on
.
page 41
See
"Analog Input (AI)
and
Function Block" on page 32
"Display bar graph" on page 43
See
"LCD Transducer Block" on
.
page 41
Verify both blocks are in
"AUTO"
.
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