Siemens SIMATIC NET System Manual page 300

Communications processors for PCs
7.1 CP 1604
Example of a topology
Figure 7-1
7.1 CP 1604
Description
Figure 7-2
The CP 1604 is a PCI-104 card with its own microprocessor Ethernet real-time ASIC ERTEC
400 which supports PN IO communication. This module has an integrated 4-port real-time
switch for 10/100 Mbps.
300
Connection of PROFINET nodes via CP1604 to Industrial Ethernet
CP 1604 EEC
System Manual, 09/2019, C79000-G8976-C242-10
Industrial Ethernet