Honeywell ST700 User Manual page 33

MAINT_ALARMS
A maintenance alarm indicates either the device or some part of the device needs
maintenance. If the condition is ignored, the device eventually fails.
•
MAINT_MAPPED parameter contains a list of conditions indicating either the device
or some part of the device needs maintenance soon. If the condition is ignored, the
device eventually fails. There are six parameters mapped by default with
MAINT_MAPPED: meterbody overload or fault, Communication board over
temperature, no factory calibration, low supply voltage, high supply voltage, and
unreliable sensor communication.
•
MAINT_MASK parameter masks any of the failed conditions listed in
MAINT_MAPPED. A bit on means that the condition is masked out from alarming
and is not reported.
•
MAINT_PRI designates the alarming priority of the MAINT_ALM. The default is 0.
•
MAINT_ACTIVE parameter displays the alarms that are active.
• MAINT_ALM parameter indicates that the device needs maintenance. If the condition
is ignored, the device fails.
CHECK_ALARMS
It indicates that the output signal is temporarily invalid due to on-going work on the device.
•
CHECK_MAPPED parameter contains a list of informative conditions that do not
have a direct impact on the device's primary functions.
•
CHECK_MASK parameter masks any of the failed conditions listed in
CHECK_MAPPED. A bit on means the condition is masked out from alarming and is
not reported.
•
CHECK_PRI parameter designates the alarming priority of the CHECK_ALM. The
default is 0.
•
CHECK_ACTIVE parameter displays the check alarms that are active.
•
CHECK_ALM parameter indicates check alarms. These conditions do not have a
direct impact on the process or device integrity.
Revision 2.0 FOUNDATION Fieldbus ST 700 Pressure Transmitter User's Guide Page 19