The R-series front-end module system (DIN rail module system) is a modular measuring and control system which can be actuated and read via an FPGA card from National Instruments. That means that FPGA modules with a pure logic interface or with a mixed interface (logic interface + analog interface) can be used. There is a master module with 8 module slots that can be fitted with various slot modules.
The following variations are possible:
FPGA module with mixed interface 4 module slots with 2 x AI, 2 x DIO 4 module slots with 2 x AO, 2 x DIO
FPGA module with logic interface 8 module slots with 2 x DIO