Siemens SIMATIC IM 151/CPU

ET 200S in the PROFIBUS Network
3-6
ET 200S Interface Module IM 151/CPU
A5E00058783-01
Setting the PROFIBUS Address
The DIP switch has 2 functions:
 Switches 1-7:
These are used to set the PROFIBUS addresses 1-125.
 Switch 8:
If the IM 151/CPU is not configured, you can use this switch to toggle between
stand-alone and DP slave operation in the case of a default startup.
ON: stand-alone operation.
OFF: DP slave operation
64
32
16
8
4
2
1
ONOFF
Example:
DP address =
64
+ 32
+ 2
+ 1
= 99
_______
*
* Switchover from DP slave to stand-alone operation
IM 151/CPU
Figure 3-4 Setting the PROFIBUS Address
Changing the PROFIBUS-DP
You change the PROFIBUS-DP address in exactly the same way you set it. Any
changes made to the PROFIBUS-DP address are valid for the ET 200S after the
interface module is powered up.
The PROFIBUS address configured in STEP 7 must remain identical to the DIP
switch setting. To ensure the validity of the changed address, the existing
configuration in STEP 7 must be altered accordingly.