National Instruments FP-3000 - Manual (Page 99)

Appendix B Fieldbus Parameters
© National Instruments Corporation B-21 FieldPoint FP-3000 User Manual
SIMULATE_D (Option)
Used to bypass the physical I/O channel and allow the block to operate
normally, using a simulated discrete I/O channel. 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 Appendix A,
Configuring the
FP-3000 .
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 setpoint 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 setpoint is used immediately.
ST_REV (Diagnostic)
ST_REV is incremented by one each time a static parameter is modified.