The GW-7433D is one of CAN bus products in ICP DAS. It provides CANopen and Modbus/TCP gateway function. GW-7433D solves a mission-critical problem: connecting an existing CANopen network to Ethernet-based PLCs or PC-based system. It enables CANopen networks to be coupled together over the Internet/Ethernet, whereby remote monitoring and control is possible. On CANopen network, it provides PDO and SDO functions to communicate with slave devices. On the Ethernet network, it acts as a Modbus TCP server. Users can use Modbus TCP class 0, class 1 and partial class 2 function to communicate with GW-7433D. In addition, we also provide friendly utility software for users to configure their device parameters of the GW-7433D.