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National Instruments Corporation C-1 FieldPoint FP-3000 User Manual
C
Fieldbus Parameters
ACK_OPTION
Allows alarms to be automatically acknowledged by the block with no
outside intervention. This is useful if you are not interested in
acknowledging certain alarms from a block.
ALARM_HYS
The amount a value must move off an alarm limit, in percent of scale, for
the alarm to be considered clear. This helps prevent alarms from constantly
“toggling” on and off when the process value is near the configured alarm
limit.
ALARM_SUM
A summary of the status of alarms in the block. Allows alarms to be
disabled.
ALERT_KEY
A value reported in alarm messages from the block that allows MMI
applications to sort and filter alarms.
ALG_RUN_TIME
The length of time (in milliseconds) the block algorithm takes to run.
BAL_TIME
The time constant used by the integral term of the PID to obtain balance
when the output is limited and the block is in
Auto, Cas, or RCas mode.
BINARY_CL
An interlock input. When in Discrete_State_1, the output of the block
is forced closed (
Discrete_State_0). This interlock input has priority
over all interlock inputs, except
SAFEGUARD_CL and SAFEGUARD_OP. In
the event
BINARY_OP and BINARY_CL are in discrete state 1, both are
considered to be in
Discrete_State_0.