Troubleshooting The Lcd Transducer Block; Table 28: Lcd Transducer Block - Honeywell SmartLine RMA800 User Manual

Troubleshooting the LCD Transducer block

Problem Cause
LCD Transducer
block mode is in OOS
and does not change
to AUTO mode.
Writing to display
parameters fails.
Writing to some of
display parameter in
SCREEN_1,
SCREEN_2,
SCREEN_3,
SCREEN_4,
SCREEN_5,
SCREEN_6,
SCREEN_7,
and
SCREEN_8
fails.
Local display shows
Attention as title with
some text.
Block alarms are not
reported.
Page 102 Foundation Fieldbus RMA803 Remote Indicator User's Guide

Table 28: LCD Transducer block

Things to check
Read
MODE_BLOCK.PERMITTED
Read MODE_BLOCK.
ACTUAL of Resource block.
Check for local display.
Check DISPLAY_TYPE.
Check the
DISPLAY_MESSAGE
parameters.
Read FEATURE_SEL.
Read LIM_NOTIFY
Recommended Action
Add AUTO mode to
MODE_BLOCK.PERMITTED.
If necessary, Set MODE_BLOCK.TARGET
to AUTO.
NOTE
If the mode is set to OOS for maintenance,
then do not change the mode to AUTO.
Advanced Display is required for LCD_TB
to work.
If display is available, remove and
reconnect the local display, and check if
display powers up.
If display is not powering up contact
Honeywell TAC.
NOTE
If a user goes to menus/sub menus in the
display, the parameter change will fail. He
must navigate out of the menus.
If there is No Display, then writing to the
parameters fails. Parameters write is
supported if Advanced display is connected.
Remote Indicator messaging is activated; to
clear the message executed the Clear
Message method. For more information see
section 5.5
Reports are not selected in
FEATURE_SEL. If features do not include
Reports then the host must poll for alarms.
Set LIM_NOTIFY to a value higher than
zero, but not higher than MAX_NOTIFY.
Revision 4