Siemens S5-155U System Manual page 27

Centralized and Distributed Configuration
2 - 8
• • With the IM 301/IM 310 pair of interface modules, you can only
use I/O modules (DI, DQ, AI, AQ) and IPs without page
addressing in the EUs.
• • With the IM 304/314 pair of interface modules, you can use all
IPs, CPs and I/O modules in the EU 185U.
Note
The IM 307/317, IM 308/318 and IM 308-B/318-B each have their
own manual (see catalog).
System Manual
C79000-B8576-C199-03