What function does the C-PLUG have with network components and
SIMATIC Cps ?
The C-PLUG is a removable medium that supports rapid device change
without having to configure the replacement device if there is a
fault. All you do is remove the C-PLUG from the failed device and
insert it in the replacement device. The replacement device then
starts up automatically with the same configuration as the failed
The C-PLUG can usually be used as an option, in other words the
devices can also be operated without C-PLUG.
In the case of some S7 CP modules, such as the CP 443-1
Advanced, the C-PLUG is part of the delivery package and is
required for the complete scope of functions of the components