National Instruments NI-FBUS - Manual (Page 96)

Chapter 4 Parameters
© National Instruments Corporation 4-31 NI-FBUS Configurator User Manual
Note For this feature to be enabled on an FP-3000, you must set a switch on the back of
the device. To see how to configure the switch, refer to the FP-3000 manual.
SP (Process)
The analog setpoint.
SP_D (Process)
The discrete setpoint.
SP_HI_LIM (Limiting, Option)
The upper limit on an operator-entered setpoint for the block. If the
operator enters a setpoint that exceeds this value, the setpoint is considered
to be
SP_HI_LIM with a status that indicates that it is limited.
SP_LO_LIM (Limiting, Option)
The lower limit on an operator-entered setpoint of the block. If the operator
enters a setpoint below this value, the setpoint is considered to be
SP_LO_LIM with a status that indicates that it is limited.
SP_RATE_DN (Limiting, Option)
In Auto mode, the rate, in PV units per second, the setpoint can be moved
downwards. If the setpoint moves faster than SP_RATE_DN , the block acts
as if the setpoint is moving downwards at the maximum rate with a status
bit that indicates that it is limited. If set to zero, the set point is used
immediately.
SP_RATE_UP (Limiting, Option)
In Auto mode, the rate, in PV units per second, the setpoint can be moved
upwards. If the setpoint moves faster than SP_RATE_UP , the block acts as
if the setpoint is moving upwards at the maximum rate with a status bit that
indicates that it is limited. If set to zero, the set point is used immediately.
ST_REV (Diagnostic)
ST_REV is incremented by one each time a static parameter is modified.