1269 User Manual
Using The Enhanced Monitoring System 4-25
on, the front panel will display the message:
System OK
These two messages are displayed only when no out-of-
tolerance conditions have been detected by the EMS. If an
out-of-tolerance condition is detected, a status message is
displayed. Consult the “Front Panel Display Status Messages”
of this chapter for a description of the various status messages
and their meanings
Turning The Display
On and Off
At Power-On and after a reset, the front panel display is turned
on. The front panel may be turned off using the command:
DISPLAY:TEXT:STATE OFF
After this command is executed, the display is turned off. The
display will not display any status messages nor will it display
any user-defined messages.
The front panel display may be turned on by using the
command:
DISPLAY:TEXT:STATE ON
The present state of the display may be read using the query:
DISPLAY:TEXT:STATE?
The EMS will reply to this query with a “0" if the display is off, or
a “1" if the display is on.
Writing a Message To
The Display
The user may write a message to the display. This is done with
the command:
DISPLAY:TEXT “Show This On The Display”
This text to display may be enclosed in either double quotes or
in single quotes.
The text message may be from 0 to 80 characters in length.
Since the LED display can accommodate only 10 characters at
a time, and since the status “clock” is always shown at the
right-most position, only 9 characters may be displayed at one
time. The EMS will automatically “scroll” messages longer than
9 characters from left to right at the rate of 2 characters per
second. Thus, if the command:
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