Siemens SIMATIC S7 - Page 131

Network example and API interfaces
A.1 Network example
SIMATIC Automation Tool V2.1 user guide
Manual, V2.1.1 07/2016, A5E33042676-AC
131
In the diagram above, the "lollipop" notation shows which SIMATIC Automation Tool API
interface class best represents each network component.
● CPUs directly connected to the external network are represented by the
ICPU interface
● I/O Stations directly connected to the external network are represented by the
/IProfinetDevice interface
● Subnets originating from a CPU are represented by the
IRemoteInterface interface
● I/O Stations not directly connected to the external network (but accessible through a
CPU) are represented by the
IBaseDevice interface.
● I/O or Communications modules connected to a CPU or IO Station are represented by
the
IModule interface