The Helmholz NETlink® PRO Compact is a simple, cost effective solution to connecting your S7-200, S7-300 & S7-400 PLCs to an Ethernet network for programming, troubleshooting, or data collection. Its small, compact design means you do not need additional panel space to “mount a communication card” as it plugs directly into the PPI/MPI/PROFIBUS port of your PLC. This, in addition to the fact that there are no hardware configuration changes needed in the PLC, makes the NETlink® PRO Compact an easy choice for your connectivity needs.