National Instruments NI-FBUS - Manual (Page 105)

Appendix A Error Messages and Warnings
NI-FBUS Configurator User Manual A-6 ni.com
best solution is to increase the macrocycle time of the loop that contains the
other block(s) for this device.
NIFCONF_ERR_MACROCYCLE_NOT_GOOD_MULTIPLE
This macrocycle is a bad choice in comparison to the other macrocycles.
NIFCONF_ERR_MACROCYCLE_TOO_SHORT
There was not enough time in this macrocycle to schedule all the function
blocks and parameters. Increase the macrocycle time of the loop to get
more free time. A macrocyle generally must be at least 10 ms.
NIFCONF_ERR_MAXIMUM_LOOPS_EXCEEDED
The maximum number of loops you can configure on this link is exceeded.
NIFCONF_ERR_MISSING_NIFBUS_PATH
The install path for NI-FBUS Configurator is not in the Windows registry.
NIFCONF_ERR_MULTI_LAS
Multiple primary Link Active Schedulers are defined. Only one primary
LAS is allowed on a link.
NIFCONF_ERR_MULTI_TM
Multiple time masters are defined. Only one time master per link is
allowed.
NIFCONF_ERR_NO_CONVERSION
There is no conversion for this data type.
NIFCONF_ERR_NO_DATA
No data.
NIFCONF_ERR_NO_LAS_SELECTED
A schedule has been created but no LAS is selected.
NIFCONF_ERR_NO_LM_SELECTED
A schedule has been created but no link master is selected.