Siemens Industry Online Support
Siemens AG
Entry type: FAQ, Entry ID: 19548096, Entry date: 10/05/2004

Using C-PLUG with network components and SIMATIC CPs

  • Entry
  • Associated product(s)

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 device.

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 concerned

Security information
In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about industrial security, please visit