SolutionLabVIEW 2009 and Later
Yes, you can use the NI 9144/5 EtherCAT Expansion Chassis in FPGA mode as well as Scan Interface mode. Using FPGA mode on the NI 9144/5 allows all modules compatible with the CompactRIO to also be used in the NI 9144/5.
In order to transfer data from the FPGA to the master's real-time processor, you must write the data to user defined variables. Review the Programming EtherCAT I/O with FPGA Intelligence
white paper for more information on synchronizing data between a slave's FPGA and the master's real-time processor.Before LabVIEW 2009
The NI 9144/5 can only be used with the CompactRIO Scan Interface.