N4d3e16 Manual ((link))

If your N4D3E16 uses Modbus RTU, CANopen, EtherCAT, or Profibus, the manual details:

The (and its upgraded N4D3E16 Pro version) is a professional-grade, 16-channel bidirectional RS485 remote control module designed for industrial automation, smart homes, and PLC expansion. Operating on the Modbus RTU protocol, this versatile I/O board allows users to read 16 digital inputs and control 16 Darlington transistor outputs over long distances. Core Technical Specifications n4d3e16 manual

Do not attempt to use features labeled “V2.3 only” (like advanced jerk control). Follow the firmware upgrade procedure in Appendix C of your manual. You will need a dedicated programming cable (part number N4D3-PROG-KIT). If your N4D3E16 uses Modbus RTU, CANopen, EtherCAT,