Overview
1.3 Design
Extension Units KPxx
16
Operating Instructions, 05/2019, A5E43600360-AC
1.3.2
Standard operator controls and interfaces
The figures below show the position and terminal designations for the slots of the Extension
Unit and the position of the cable harness.
Front
Example of an Extension Unit 22" with 7 standard operator controls and one emergency stop
button. The other slots are indicated by dotted lines.
For the Extension Unit Hardwired, L
x
marks the slot positions on the left as counted from the
center while R
x
marks the slots on the right.
With Extension Unit PROFINET and Extension Unit PROFIsafe, the slots are numbered
similar to the display in the TIA Portal in ascending order from left to right. The numbering in
this and the following figure corresponds to STEP 7 (TIA Portal) V15; for V14, the numbering
of the slots from 1 to 12 applies.
Rear
The figure below show the enclosure without a rear panel cover using the Extension Unit 22"
as an example.
①
Marking for the top of the extension unit
②
Cable harness
Note that the name or numbering of the slots is reversed when you view the Extension Unit
from the rear.
Interfaces of the communication modules
You can find a description of the interfaces of the respective communication module in the
connection compartment of the Extension Unit in the section
"Technical specifications (Page 81)".
