# Test and validate entry plug controlled e-stop

Example

This is a FlexSystem using e-stop entry plug to control the e-stop, a discrete e-stop solution. The stop input source can be buttons, light curtains or other sensors, however they need to be able to break two signal paths in a safe manner. One or more stop sources can be connected in series.

Pos |
--- | ---
A | E-stop. Stop input and reset input.
B | Entry plug installed on the first FlexCarrier.
C | Bypass plugs installed on the daisy chained FlexCarriers.