Siemens SIMATIC ET 200SP - Applying Labeling Strips

Wiring
6.15 Labeling ET 200SP
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ
129
NOTICE
AUX bus as PE bar
If you use an AUX bus as a protective conductor (PE), attach the yellow-green color
identification labels to the AUX terminals.
If you stop using the AUX terminals as a protective conductor bar, remove the yellow-green
color identification labels and make sure that the system is still protected.
NOTICE
Supply of incorrect potential possible
Check that the color-coded labels/wiring is correct before commissioning the plant.
6.15.4 Applying labeling strips
Procedure
Watch video sequence: "Labeling"
(http://support.automation.siemens.com/WW/view/en/95886218
)
Proceed as follows to install a labeling strip:
1. Label the strips.
2. Insert the labeling strip into the interface module or I/O module.