Technical specifications   
8.5 Hardware description 
  SIMATIC IPC847D 
154  Operating Instructions, 01/2014, A5E32997454-AA 
 
 
Bus board - Layout and principle of operation 
The bus board is designed as a link between the motherboard and the expansion cards. It is 
mounted using six screws.  
This bus board is available in two versions: 
 
① 
 
3 × PCIe x4 direct plug 
sockets 
slot 1, 2, 3  
Assignment: PCIe x1 Gen2 
② 
3 × PCI direct plug sockets 
slot 4, 5, 6 
 
1 × PCIe x16 direct plug 
socket 
slot 7 
Assignment: PCIe x16 
Gen3 
④ 
4 × PCI direct plug sockets 
slot 8, 9, 10, 11  
PCI-Bus secondary