Siemens PC 870 User Manual
Page 38
Maintenance
4-6
SIMATIC Panel PC 670 / 870 Operating Unit, Equipment Manual
Edition 07/01
4.3
Replacing soft key labeling
(operating units with key-based front panels only)
The two horizontal and two vertical rows of soft keys of the operating
units with key-based front panels can be assigned user-specific func-
tions. You can use two printed labeling strips to identify the soft keys.
A4 foil sheets are available for you to prepare the strips for insertion.
Procedure:
1.
Print the foil with a laser printer.
2.
Cut the labeling strips along the preprinted lines.
3.
Insert the strips through the slits provided on the rear side of the
operating unit (see Figure 4-5).
Slits for horizontal soft key labeling strips
Slits for vertical soft key labeling strips
Fig. 4-5
Rear side of the operating unit with connections and slits for the soft key labeling strips