Siemens SIMATIC ITC1200 V3 - Page 29

Overview
1.4 System components and accessories
ITC V3, ITC V3 PRO
Operating Instructions, 03/2024, A5E42761061-AF
29
Extension Unit
The Extension Unit is used to install additional operator controls below a SIMATIC PRO device
for pedestal (extendable, flange bottom) or for support arm (extendable, round tube).
The Extension Unit can be customized and is supplied without operator controls. The front of
the Extension Unit has pre-perforated slots for operator controls. The Extension Unit is
available in four sizes:
• Extension Unit 12", article number 6AV7674-1LA3x-0AA0
• Extension Unit 15", article number 6AV7674-1LA4x-0AA0
• Extension Unit 19", article number 6AV7674-1LA5x-0AA0
• Extension Unit 22", article number 6AV7674-1LA6x-0AA0
• Extension Unit 24", article number 6AV7674-1LA7x-0AA0
In each size, you have the flexibility to choose between the following Extension Unit interface
variants (x) for connection to the plant:
• Hardwired (x=1)
• PROFINET (x=2)
• PROFIsafe (x=3)
In addition, different operator controls, such as Emergency Stop pushbutton, selector switch,
illuminated pushbutton, keyswitch or indicator light are available.
Note
Only operator controls with Siemens approval may be installed in the Extension Unit.
You can find detailed information in the corresponding operating instructions on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109742323).