Your advantages Quick overview of the status of each switch in the chain Safety relay already integrated Reduced wiring effort due to AR technology Easy to service due to plug-in connection terminals Design and functionality Using the AR evaluation unit AR switch chains with up to 12 devices can be evaluated. All relevant status information on the switches connected is routed to the evaluation unit using only two inputs. The four safety outputs are switched depending on these input signals. Connected parts of the safety circuit, e.g. contactors, can be monitored via a feedback loop. The system can be started either manually using a start button or automatically. With a total of 14 monitoring outputs, the CES-AR-AES supplies downstream control systems with information on the switching state, as well as any diagnostic messages present. More information You will find further information in our product catalog.