Using Single-Channel, One-Sided I/Os - Siemens SIMATIC S7-400H System Manual

10.3

Using single-channel, one-sided I/Os

What is single-channel one-sided I/O?
In the single-channel one-sided configuration, the input/output modules exist only once
(single-channel). The I/O modules are located in only one subsystem,and are always
addressed by it.
A single-channel, one-sided I/O configuration is possible in
● CPUs and expansion units
● distributed I/O devices
An installation with single-channel, one-sided I/O is useful for the operation of single I/O
channels up to system components which only require the standard availability.
Single-channel, one-sided I/O configuration
S7-400H
System Manual, 09/2007, A5E00267695-03
Using I/Os in S7-400H
10.3 Using single-channel, one-sided I/Os
121