Slave, C Series PROFINET Slave Interface Module—The cRIO-PN-S connects NI programmable automation controllers (PACs) to PROFINET industrial networks as powerful slaves. The interface includes the NI-PROFINET for CompactRIO driver for human machine interface (HMI) and supervisory control and data acquisition (SCADA) applications. You can perform PROFINET device automated test using these interfaces. The cRIO-PN-S is only compatible with CompactRIO systems.