Siemens 500 NIM - Manual (Page 15)

TIWAY I Overview 1-4 SIMATIC TIWAY I Series 500 NIM User Manual
TIWAY I System Overview (continued)
Host Systems
Host System
Interfaces
Command Initiators
Network Interface
Modules
Siemens
Programmable
Controllers
Secondary Adapters
NonĆSiemens
Network Media
Responders
Devices
Figure 1-1 TIWAY I System Block Diagram