Operating instructions

Detailed descriptions
17.2 Bus board
SIMATIC Panel PC 677B
200 Operating Instructions, 05/2007, A5E01035609-01
17.2 Bus board
17.2.1 Layout and principle of operation
The bus board is designed as a link between the motherboard and the expansion modules. It
is secured with two screws.
Two models of the bus board are available:
Variant 1 has two PCI slots (1x short, 1x long). It can host expansion modules conforming to
PCI specification (Rev. 2.2) for 5 V and 3.3 V modules. All PCI slots are master compatible.
The expansion modules are supplied with power via the bus board to motherboard
connection.
 

(1) Slot 1
(2) Slot 2
(3) 12V power supply connection for WinAC module
Variant 2 has one PCI and one PCI Express slot.



(1) Slot 1 PCI
(2) Slot 2 PCI Express x4
(3) 12V power supply connection for WinAC module