The EL2819 digital output terminal connects the binary 24 V DC control signals from the automation device on to the actuators at the process level with electrical isolation. The EtherCAT Terminal has 16 channels, whose signal states are indicated by LEDs. The integrated diagnostics can be evaluated in the controller and is indicated by the LEDs. Maintenance of the application is simplified by the diagnostics. The power contacts are connected through. The reference ground for the outputs is the 0 V DC power contact. The outputs are electrically isolated from the fieldbus side.

Special features:

• Connection of different load types possible (ohmic, inductive, lamp load)
• Max. output current 0.5 A per channel
• Short-circuit-proof outputs and reverse polarity protection
• Integrated diagnostics option, including
• Short-circuit detection per channel
• Wire breakage per channel
• Overcurrent per channel
• Overtemperature
• Voltage loss and undervoltage
• Parameterizable output behavior in case of bus error (safe state)
• Tool-free connection by direct plug-in technology for solid wire conductors

https://www.beckhoff.com/vi-vn/products/i-o/ethercat-terminals/el2xxx-digital-output/el2819.html