Siemens simatic et200sp - Page 19

Introduction
3.2 AS-i Safety product overview
Safety engineering with AS‑Interface in the SIMATIC ET 200SP, including typical circuit diagram
Function Manual, 08/2020, A5E44991382002A/RS-AB/002
19
Range extension
Lower infrastructure costs, more possibilities of use and
greater freedom for plant planning
• Extension of an AS-i segment to a max. of 200 m with
extension plug (without additional power supply unit)
• Extension by one bus segment with AS-i Repeater
Maximum combined extension increases to 600 m or more
(with parallel connection of repeaters)
Extension plug
Repeater
Compact distributor
Quick and easy distribution and branching to the AS-i shaped
cable
• Simple distribution/connection of AS-i shaped cable with
high degree of protection
• Branching from AS-i and U
aux to round cable
• Connection of slaves with M12 bus connection
• M12 branch with direct M12 socket or M12 round cable
available
• Easy to use
M12 branches
Overvoltage protection
Protection against overvoltage on AS-i
• Special module: Overvoltage protection
Note
Ground fault detection is integrated into the CM AS
-i Master ST, AS-i power supply units and
the data decoupling unit