Appendix C Fieldbus Parameters
FieldPoint FP-3000 User Manual C-6
©
National Instruments Corporation
CONTROL_OPTS
A list of options used to adjust the way control blocks, such as the
PID block, operate. The options are described in Table C-4.
CYCLE_SEL/CYCLE_TYPE
Unused in FieldPoint.
DD_RESOURCE
Unused in FieldPoint.
Table C-4. Control Options
Options Description
Bypass Enable Allows you to set the BYPASS parameter and bypass the
algorithm’s control.
SP-PV Track in Man Causes the setpoint to track the process variable in Man.
SP-PV Track in ROut Causes the setpoint to track the process variable in ROut.
SP-PV Track in LO or IMan Causes the setpoint to track the process variable in LO or IMan.
SP Track Retained Target Permits the setpoint to track the input value of the retained target
of the block. The retained target of the block is the lowest priority
mode set in the target mode field of the MODE_BLK parameter of
the block. For example, if the RCas bit is set in the target mode,
the setpoint tracks RCAS_IN.
Direct Acting Defines the relationship between changes to the PV and changes
to the output. When set, an increase in the process variable
causes the output value to be increased. When clear, a decrease
in the process variable causes the output value to be decreased.
Track Enable Enables tracking. If Track Enable is true, and TRK_IN_D is true,
TRK_VAL overwrites the value at the output of the block.
Track in Manual This enables tracking in Manual mode.
Use PV for BKCAL_OUT When set, this uses the process variable as the value for
BKCAL_OUT, instead of the setpoint.
Obey SP Limits if Cas or RCas When set, this confines the setpoint to values within SP_HI_LIM
and SP_LO_LIM, even when the setpoint comes from another
function block.
No OUT Limits in Man Unused in FieldPoint.