
Description
2.2 Design
SIMATIC RF170C
Operating Instructions, 02/2022, J31069-D0176-U001-A6-7618
17
2.2.3
Maximum configuration
Mechanical maximum configuration
The maximum configuration of an ET 200pro is reached when one of the rules outlined
below applies:
Table 2- 2
Mechanical maximum configuration
Properties
Rule
Number of modules
Maximum 9 RF170Cs
Width of the ET 200pro
max. 1 meter mounting width (without rack)
Electrical maximum configuration
Elec/encoder supply 1L+
•
Supplies power to the internal electronics of the modules and to readers connected
externally
•
Electrically isolated from the backplane bus of the ET 200pro and PROFIBUS DP
Table 2- 3
Electrical maximum configuration
Properties
Rule
Elec / encoder supply 1L+
max. 5 A per ET 200pro station
(must not be exceeded with connected readers)
Note
Configuring the ET 200pro
The maximum electrical setup can be checked with the TIA Selection Tool. We recommend
use of the tool because the maximum setup cannot be achieved with all reader
configurations.
You will find the tool on the Internet on the page of the “Siemens homepage
http://w3.siemens.com/mcms/topics/en/simatic/tia-selection-tool/Pages/tab.aspx
)“.