Siemens SIMATIC STEP 7 V5.2 Getting Started page 106

Configuring the Distributed I/O
Changing the Node Address
11-6
In our example, we do not need to
change the node address. In practice,
however, this is often necessary.
Select the other nodes one after
another and check the input and output
addresses. The "Configuring
Hardware" application has adapted all
the addresses, so there are no double
assignments.
Let us imagine that you want to
change the address of the ET200M:
Select the ET200M and double-click
DO32xDC24V/0.4A (slot 4).
Now change the input addresses in the
"Addresses" tab of the "Properties"
dialog box from 6 to 12.
Close the dialog box with OK.
STEP 7 Getting Started
A5E00171228-01