Siemens DTU3005-B - Manual (Page 50)

6
Creating Project Files—SEAbus Port Expander
46 Siemens Energy & Automation, Inc.
6.1 Passthrough Setup—Port 1
You must have a SEAbus Port Expander project file
open to configure port 1 using the instructions in this
section. Select Port 1 (Passthrough) from the Edit
menu, and the Port 1 (Passthrough) configuration
screen appears.
2-Wire RS422 or RS485 Communications
The 2-Wire RS422 or RS485 Communications selec-
tion box will only need to be checked if the communi-
cations with your supervisory computer is a 2-wire
RS485 or RS422 interface. An example of this is if you
are using a RS-232/485 converter to extend the dis-
tance between your computer and the DTU3005.