Function block parameters > Option bitstring parameters

Status options

The status options parameter (STATUS_OPTS) allows you to select options for status handling and processing. You can set status options in Manual or Out of Service mode only. The following are the status options in the DeltaV system:
  • Uncertain if Man mode — Set the output status of an input or calculation block to Uncertain if the actual mode of the block is Man.

  • BAD if Limited — Sets the output status to Bad if the sensor is at or beyond a high or low limit.

  • Uncertain if Limited — Set the output status of an input or calculation block to Uncertain if the measured or calculated value is limited.

  • Target to Manual if Bad IN — Sets the target mode to Man if the status of the IN parameter is BAD.

  • Propagate Fault Backward — If the status from the actuator is Bad - Device Failure or Fault State Active or Local Override is active, propagate this as Bad, Device Failure or Good Cascade, Fault State Active or Local Override to BKCAL_OUT respectively without generating an alarm. The use of these substatuses in BKCAL_OUT is determined by this option. Through this option, the user can determine whether alarming (sending of an alert) will be done by the block or propagated upstream for alarming.

  • Propagate Fault Forward — If the status from the sensor is Bad - Device Failure or Bad - Sensor Failure, propagate it to OUT without generating an alarm. The use of these substatuses in OUT is determined by this option. Through this option, the user can determine whether alarming (sending of an alert) will be done by the block or propagated downstream for alarming.

  • Use Uncertain as Good — If the status of the IN parameter is Uncertain, treat it as GOOD.

  • IFS if Bad CAS_IN — Set Initiate Fault State status in the OUT parameter if the status of the CAS_IN parameter is BAD.

  • IFS if Bad IN — Set Initiate Fault State status in the OUT parameter if the status of the IN parameter is BAD.