National Instruments FP-3000 - Manual (Page 92)

Appendix B Fieldbus Parameters
FieldPoint FP-3000 User Manual B-14 www.ni.com
MAX_NOTIFY (Alarming)
The maximum number of unconfirmed alarm/event notification messages
the device supports.
MEMORY_SIZE (Diagnostic)
Unused by FieldPoint.
MIN_CYCLE_T (Diagnostic, Process)
The length of the shortest macrocycle the device supports.
MODE_BLK (Diagnostic, Process)
Sets the operational and permitted modes of the block. The following table
describes the operational and permitted modes of the block.
Table B-7. Field Modes
Field Mode Description
TARGET The desired mode of operation of the block. This field is writable. Several bits
may be set in this field, and typically, the highest priority bit that is set will be
considered to be the target mode.
OOS is the highest priority bit.
ACTUAL A bit reflecting the current state of operation of the block. This is a read-only field.
Only one bit will be set at a time by the block.
ACTUAL mode is a function of the
target mode and the current conditions in which the block is executing. Several
conditions (such as cascade initialization or fault state conditions) can cause the
ACTUAL mode to differ from the Target mode.
PERMITTED A bitmask indicating which modes are permitted target modes and which are not.
This field is writable. This could be used by the plant operator to disallow certain
modes the block would normally be permitted to have as a
Target mode.
NORMAL Not used by the block. This can be used by an operator to store the normal mode
of operation for the block in normal plant operations. This field is writable. Used
by the NI-FBUS Configurator to set the
TARGET mode after download when the
Automatic Mode Handling feature is in effect.