The SIMATIC S7 is connected with the KNX/EIB components via KNXnet/IP interfaces. The interfaces connect the KNX/EIB bus with the Industrial Ethernet bus of the SIMATIC S7.

Up to 5 KNXnet/IP interfaces can be connected to a SIMATIC S7 controller Up to 7,000 group addresses can be monitored, operated and read via these interfaces. The maximum number of group addresses depends on the controller type and the number of connected KNXnet/IP interfaces.

KNX/EIB2S7 supports the following CPUs of the SIMATIC S7:

• ET 200
  • IM 151-8 PN/DP CPU
• S7 300/400
  • CPU 315-2 PN/DP
  • CPU 317-2 PN/DP
  • CPU 319-3 PN/DP
  • CPU 414-3 PN/DP
  • CPU 416-3 PN/DP
• Soft PLC
  • SIMATIC WinAC RTX 2008 SP 1
• SIMATIC S7 300 with CP 343-1
  • CPU 315-2 DP
  • CPU 317-2 DP
  • CPU 319-3 PN/DP
• SIMATIC S7 400 with CP 443–1 Advanced
  • CPU 412-2 MPI/DP
  • CPU 414-2 MPI/DP
  • CPU 416-2 MPI
• Supported KNXnet/IP interfaces:
  • N 146/2 IP router
  • N 148/22 IP interface
  • N 350E IP controller
  • N 151 IP viewer