National Instruments BridgeVIEW User Manual page 91

Applies to
Attribute Data Types
Alarm on discrete,
bit array
Discrete discrete,
Priority bit array
Alarm Invert bit array
Mask
Alarm Select bit array
Mask
Alarm discrete,
Message bit array
Tag Last all
Modified
Determines whether a discrete tag should be alarm on ON (high)
or OFF (low). Determines whether a bit array goes into alarm if
all of its bits are in alarm or if any of its bits are in alarm. This
field is used only if both Alarms Enabled and Discrete Enabled
fields are set to TRUE.
Determines the value (between 1 and 15) for the alarm priority
for the tag value alarm, where 15 represents the highest priority.
Determines which bits are inverted before calculating the
alarm state. Bits in the mask that are
an alarm when low (0). Bits that are
cause an alarm when high (1). The default mask is 0, indicating
none of the bits are inverted. In bit-wise logic terminology, the
Engine performs an XOR with the Invert Mask to produce the
alarm state. The Alarm Invert Mask is applied to the scaled value
after any relevant scaling masks are applied.
Determines which bits are used for the bit array alarm
calculation. Bits in the mask that are
calculation; bits that are
their value. In bit-wise logic terminology, the Engine performs an
AND with the Select Mask to produce the alarm state. The Alarm
Select Mask is applied to the scaled value after any relevant
scaling masks are applied.
Determines the string used to provide additional information
about the meaning of an alarm condition.
Indicates when the last edit to a tag occurred.
Description
are inverted; thus cause
1
are not inverted; thus,
0
are used in the alarm
1
do not cause an alarm, regardless of
0